Indonesia Conference Directory

Corresponding Author
Muhammad Faudzi Bahari

Institutions
a) Master program in Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, INDONESIA
*mfaudzibahari[at]gmail.com
b) Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, INDONESIA

Abstract
This study discusses a method for flowshop scheduling on 3-machines with n jobs. The purpose of this study is to minimize the cost of leasing machines that must be issued by a company in the production process carried out. The several things considered are the existence of the job-block criteria in the production scheduling process.

Keywords
Flowshop, Minimize Rental Cost

Topic
Applied Mathematics

Link: https://ifory.id/abstract/LWp8Fm4YtXqA

Corresponding Author
Suharti Suharti

Institutions
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang No 5 Malang, East Java, Indonesia

Abstract
Plastic products are widely used because of their lightweight, easy to shape, non-corrosive, diverse colors, very easy storage, and can be reused. However, plastic waste is very difficult to completely decomposed by microorganisms. The process requires a long time due to the material used comes from non-renewable sources of petroleum. One type of plastic is Polyethylene (PE). PE plastic polymers have very strong chemical bonds and these polymer fibers blend together with each other so that other properties of this type of PE plastic make it difficult to degrade by nature. Therefore, one of the solution to solve this environmental problem is to combine composites using natural polymers, one of it is keratin. Keratin is a biopolymer found in chicken feathers which can be degraded by microorganism. Keratin from chicken feathers can be used as fillers to in PE to improve its biodegrebility. In addition, keratin reinforced Polyethylene (PE) offers a combination of good characteristics for biodegradable composites, good thermal stability and good chemical resistance.Composite was prepared by mixing soluble keratin and polyethylene at various ratios. Composites was characterize of plastics was characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, and differential scanning calorimetry. Utilization of chicken feather keratin which is used as a composite material requires a method to turn chicken feathers into nano keratin fiber. The results showed chicken feather-keratin/polyethylene composite can be synthesized at various ratio, however the best physical character need to be further analyzed.

Keywords
: Biodegradable Plastic, Chicken Feathers Keratin, Polyethylene (PE), Composite

Topic
WASTE AND ENVIRONMENTAL MANAGEMENT

Link: https://ifory.id/abstract/BdxekCf2QKXj

Corresponding Author
Betty Kusumaningrum

Institutions
a) Universitas Sarjanawiyata Tamansiswa
Jl Batikan, Tahunan, Umbulharjo, Yogyakarta, Indonesia
*betty.kusumaningrum[at]ustjogja.ac.id

Abstract
Visualization ability (spatial ability) is needed in understanding integral calculus. This article discusses changes in the spatial ability of a student in drawing graphs of functions to determine the volume of the solid of revolution after obtaining treatment. The treatment is in the form of questions that encourage the subject to be able to draw the graph correctly. This research is a qualitative descriptive study with a single subject. The subject in this study was 6th semester student of mathematics education study program at one of the private universities in Yogyakarta. The selection of a subject from 44 students was done by giving a question about the volume of the solid of revolution. The subject is asked to drawing the volume of the solid of revolution graphic and determine its volume using integral. The selection of subjects by purposive random sampling based on the uniqueness of the answers to the problems given and good communication skills. This study aims to describe changes in the spatial ability of subject in drawing the volume of the solid of revolution graphic after getting treatment. Before getting treatment, a subject is still not right in drawing volume of the solid of revolution graphic. After getting treatment, there is a gradual change in spatial ability. The results of the study show that giving treatment can help increase a student-s spatial ability gradually.

Keywords
treatment; solid of revolution; spatial ability

Topic
Mathematics Education

Link: https://ifory.id/abstract/F9grNwxfXVUe

Corresponding Author
I Gusti Bagus Udayana

Institutions
Faculty of Agriculture. Warmadewa University, Denpasar, Bali, Indonesia

Abstract
The Kintamani region, Bangli Regency, Bali Province, is one of the centers of Arabica coffee plants that already have a brand on the international market. Basically, the potential of Arabica coffee in the region is still quite open, but in recent years there has been a phenomenon that is the shift of plants from coffee to oranges. This shift occurs because citrus farming provides more income than coffee farming. This phenomenon encourages researchers to conduct research entitled: APPLICATION MODEL DEVELOPMENT OF BANGLI ARABICA COFFEE , aimed at increasing the added value of Bangli arabica coffee. The study was conducted in Batur village, Kintamani Subdistrict, Bangli Regency, Bali Province. The research unit is the farmer household that cultivates coffee plants in the year of the study. The sampling method uses Simple Random Sampling with a sample size of 60 farmers. The validation test of the synergy model in order to increase motivation is done through a personal approach through joint activities in the processing of ose coffee. Focus Group Discussion (FGD) was conducted twice. This research provides the results of concrete steps in developing coffee commodities holistically from the upstream to downstream sectors. The applicative model that was compiled was able to offer an ideal coffee agribusiness management offer so as to increase the productivity and quality of coffee at the farm level through agro Arabica coffee tourism objects

Keywords
Arabica coffee. Applicative Model, Arabica Coffee Agribusiness

Topic
AGROINDUSTRIAL PRODUCTION SYSTEM MANAGEMENT AND REGULATION

Link: https://ifory.id/abstract/mguqafExD7UK

Corresponding Author
Fadli Azis

Institutions
a) Magister of Mathematical and Natural Science Padjadjaran University
* fadliazis16[at]gmail.com
b) Department of Mathematical and Science Padjadjaran University

Abstract
In this paper proposes an EOQ mathematical model for deteriorating items during the inventory process. The model is developed with exponentially decreasing demand, constant deterioration, and allowing for shortages. The time-varying holding cost is a linear function of time. The ordering cost, the holding cost, the deteriorating cost, and the shortage cost are considered in the inventory management. A numerical example is presented to illustrate the model and the sesitivity analysis of various parameters is carried out.

Keywords
Inventory, EOQ, deterioration, exponential declining demand, shortage

Topic
Applied Mathematics

Link: https://ifory.id/abstract/9rnmHjNCc3dZ

Corresponding Author
Masud Effendi

Institutions
Department of Agroindustrial Technology, Faculty of Agricultural Technology, Universitas Brawijaya
Veteran Street, Malang, Indonesia
* mas.ud[at]ub.ac.id

Abstract
Peppermint hard candy is increasing sold in the market. It causes a tight business competition and need some efforts for the product to survive and to win the competition. One effort that can be done is to design peppermint hard candy packaging. This research aimed to find out the peppermint hard candy primary packaging design in accordance with the consumers needs. This study used kansei engineering to translate consumer perceptions of the primary packaging design. Factor analysis and conjoint analysis were used for data processing. Based on the analysis, the design of peppermint hard candy packaging desired by the consumer was plastic, tubular, printed sticker label, flip top accessory and transparent colors. The label design element has the most importance value (30,524%) followed by material design elements (29.188%), shape (21.763%), accessories (11.300%) and color (7.226%).

Keywords
Conjoint Analysis, Factor Analysis, Hard Candy, Kansei Engineering

Topic
AGROINDUSTRIAL PRODUCTION SYSTEM MANAGEMENT AND REGULATION

Link: https://ifory.id/abstract/tEfvkUQecpr9

Corresponding Author
Lisana Sumarah Pratignyo

Institutions
a)Magister of Mathematical and Natural Science Padjadjaran University
*lisana_sp[at]yahoo.com
b)Departement of Mathematical and Science Padjadjaran University

Abstract
This research was carried out at the Faculty of Science and Technology at the Islamic University of As Syafiiyah. There were problems that occured, some lecturers worked in companies or in offices with sufficient time which made it difficult to determine the right lecture schedule according to the willingness when teaching lecturers. Lecturers schedules that change and the process of making class schedules that are still manual results in taking a long time and difficulty managing scheduling. This study aims to optimize the suitability of teaching and learning activities with lecture scheduling which takes place with the Simulated Annealing method. This optimization methode scheduling uses Simulated Annealing, data collection methodes with field studies are interviews and observations, literatur studies and the like and with software using the Matlab program. The results of study can make it easy for administrators to process and arrange schedulling lecturers that are appropiate for the lecturers willingness to help the scheduling process better and not take long time.

Keywords
Simulated Annealing; Optimization; Scheduling; Matlab

Topic
Applied Mathematics

Link: https://ifory.id/abstract/AJwERjgukep6

Corresponding Author
Muhammad Nur Kholis

Institutions
(a)Department of Agro-industrial Technology, University of Darussalam Gontor. *mnurkholis[at]unida.gontor.ac.id

(b)Department of Agro-industrial Technology, University of Darussalam Gontor. anisasmediana[at]unida.gontor.ac.id

(c)Department of Agro-industrial Technology, University of Darussalam Gontor. mayasari[at]unida.gontor.ac.id

Abstract
Microbial cellulase is a complex enzyme produced by bacterial, fungal, and actinomycetes. Industrial cellulase has the potential of more than 50% global market. Application microbial cellulase has potential in the industry such us biofuel production, textile polishing and finishing, paper and pulp industry, and agriculture. Technological development and the prospects for the application of microbial cellulose focus on agro-industry.

Keywords
industrial enzyme: microbial cellulase; agro-industry

Topic
INDUSTRIAL BIOTECHNOLOGY AND BIOPROCESSING

Link: https://ifory.id/abstract/quYjtg9QLKJC

Corresponding Author
Yanti Mulyanti

Institutions
1Program Studi Pendidikan Matematika, FKIP UMMI
2Pendidikan Matematika, FMIPA UPI
3Pendidikan Matematika, FMIPA UPI
4Pendidikan Matematika, FMIPA UPI

Abstract
This study aims to determine the initial ability of students of the Mathematics and Teaching Faculty of Muhammadiyah Sukabumi (FKIP UMMI) Mathematics Education Study Program as a mathematician (Mathpreneur) entrepreneur who has contracted Entrepreneurship courses. The research method used is descriptive with a quantitative approach. Data collection using survey methods, using instruments in the form of questionnaires whose statements are based on the components of entrepreneur character.

Keywords
The character of Mathpreneur, Student of Mathematics Education

Topic
Mathematics Education

Link: https://ifory.id/abstract/cDBVjJAZ3286

Corresponding Author
Shindy Mega Ammelia

Institutions
Chemistry, Faculty of Math and Science, Universitas Negeri Malang
Jalan Semarang No 5 Malang, 65145, Indonesia
*Shindymega18[at]gmail.com

Abstract
Black garlic is popular as food supplement as well as herbal medicine due to its rich and beneficial chemical content. The chemical changes during the process are rarely investigated. The purpose of the study was to determine the effect of heating time on sulfur-containing compounds profiles and antioxidant activity during fermentation process at 60oC. The process is followed by GC-MS and the antioxidant activity was seen using DPPH. The result indicates that black garlic undergoes changes of sulfur-containing organic secondary metabolites, such as allicin and its related compounds. This process also reduces the percentage of black garlic inhibition, which increases the antioxidant activity of black garlic, and shows that black garlic contains very good antioxidant compounds.

Keywords
black garlic, sulfur-containing secondary metabolites, GC/MS, DPPH.

Topic
AGRICULTURAL PRODUCT TECHNOLOGY

Link: https://ifory.id/abstract/Emh4zkqR8jdf

Corresponding Author
Yuli Wibowo

Institutions
Department of Agricultural Industrial Technology, Faculty of Agricultural Technology, University of Jember,

Abstract
Fermented cassava or “tape” is one of traditional Indonesian fermented food. Along with the high level of fermented cassava consumption, the fermented cassava agroindustry in Indonesia is still potential to be developed. In order to develop the fermented cassava agroindustry, there are several risks facing the agroindustry. This study aims to identify risks in the development of the fermented cassava agroindustry, analyze the risk level, and control the risks that exist. The risks to the fermented cassava agroindustry include raw material risk, production process risk, marketing risk, and financial risk. The study was conducted in Jember Regency, East Java province, Indonesia. Risk analysis uses an integration approach between the level of risk violence and the possibility of risk events as a function, which can be visualized into a graph that shows the level of industry risk, including "low risk", "medium risk", and "high risk". Risk control in each type of fermented cassava agroindustry risk uses the Analytical Hierarchy Process technique. The results of the study show that 15 types of risks have been identified in the fermented cassava agroindustry. Based on the risks in the fermented cassava agroindustry, no one is included in the "high risk" category. It can be interpreted that the fermented cassava agroindustry is not a high-risk industry. The risk of the fermented cassava agroindustry being classified as “medium risk” include the availability of raw materials, continuity of raw materials, quality of raw materials, and number of competitors. At the risk of raw material availability, the control effort that can be taken is to make a partnership with suppliers. In the risk of continuity of raw materials, the control effort that can be taken is to improve the performance of the cassava supply chain. In the risk of quality of raw materials, the control effort that can be taken is to improve cassava cultivation and post-harvest techniques. In the risk of the number of competitors, the control effort that can be taken is to increase the promotion of fermented cassava.

Keywords
fermented cassava, fermented cassava agroindustry, risk management, raw material risk, production process risk, marketing risk, financial risk

Topic
AGROINDUSTRIAL PRODUCTION SYSTEM MANAGEMENT AND REGULATION

Link: https://ifory.id/abstract/fBYknqPzCeTK

Corresponding Author
Luhur Akbar Devianto

Institutions
(a) Department Environmental Engineering, University of Brawijaya, Jl. Veteran No.1 Malang 65145, Indonesia
(b) Department Environmental Engineering, Institut Teknologi Bandung, Jl. Ganesha No.10 Bandung 40132, Indonesia
*kardena[at]pusat.itb.ac.id

Abstract
The purpose of this research was to understand the influence of carbon source variation in the biosurfactant production by Azotobacter vinelandii as well as its potential application on remediation of hydrocarbon-contaminated soil by soil washing. The growth microorganism, biosurfactant quantity in exopolysaccharide and fatty acid fraction were examined. The quality of biosurfactant was analysed by emulsification index. The results show that biggest production was occured at the 48th hour with μmax1 = 0.416/hour, μmax2 = 0.093/hour and Ks1 = 6.55 g/L, Ks2 = 4.69 g/L for glucose and molasses substrat respectively. Biosurfactant product of Azotobacter vinelandii in glucose 1.5%, 2%, 2.5%, and 3% showed emulsification index as much as 100%. While, emulsification index of the biosurfactant produced with molasses reached 100% within 1%, 1.5%, and 2% molasse concentration. This results showed that molasses has potential utilization as carbon source in biosurfactant production. In soil washing application, Biosurfactant and Tween 80 were used as emulsifier to removed Total Petroleum Hydrocarbons (TPHs) by contacting in erlenmeyer flask at rotary shaker. The results showed that highest removal achieved by using biosurfactant. The Highest TPHs removal reach 48.89% which occured at 100 rpm for 40 minutes.

Keywords
Azotobacter vinelandii, Biosurfactants, Glucose, Molasses, Soil washing

Topic
WASTE AND ENVIRONMENTAL MANAGEMENT

Link: https://ifory.id/abstract/2XF3Lm6yeZAu

Corresponding Author
Luhur Akbar Devianto

Institutions
(a) Department of Environmental Engineering, University of Brawijaya, Jl. Veteran No.1 Malang 65145, Indonesia
*luhur.devianto[at]ub.ac.id
(b) Department of Environmental Engineering, Institut Teknologi Bandung, Jl. Ganesha No.10 Bandung 40132, Indonesia

Abstract
Sanitary conditions is one of the components that influencing of public health. Bogor Regency has total area 317,102 Ha, with total population 4,922,205 in 2012. The sanitation of Bogor Regency nearly 100% is using on-site systems. Utilization of septic tank reduce the level of contamination of surface water and groundwater. However, the sludge still contain high E.Coli that potentially caused diarrhea, vomiting disease, and others, so that the handling of the sludge needs Fecal Sludge Treatment Facilities (FSTF). The Bogor Regency currently have 10 units of fecal suction truck services. But the disposal process still was done in Kalimulya FSTF, Depok city. This study aims to find feasible FSTF site location which fulfill the spatial plan, technical, and non-technical criteria. The process on determining of feasible FSTF location was using multicriteria analysis using Geographic Information Systems (GIS). Several spatial data such as the land slope, the type of soil, distance from water bodies / river, the administration of Bogor Regency, as well as land use and land capability were used for FSTF site selection.

Keywords
Fecal sludge treatment facilities site selection, Geographic Information Systems, On-site system

Topic
WASTE AND ENVIRONMENTAL MANAGEMENT

Link: https://ifory.id/abstract/xeDh6UX2Bkwb

Corresponding Author
Fauziatul Fajaroh

Institutions
(a) Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri
Malang, Jl. Semarang 5 Malang 65145, Indonesia
(b)Department of Chemical Engineering, Universitas Sebelas Maret, Indonesia

Abstract
Industrial development in various fields and limited of natural dyes have led to an increase in the use of synthetic dyes which have the potential to produce hazardous wastes if not managed properly. Efforts to process the liquid waste, especially synthetic dye waste can be done in many ways. A simple but supposedly effective way is to utilize magnetic nanoscale adsorbent material as a waste processing agent. The purpose of this study was to synthesize salicylic acid-modified magnetite nanoparticles and apply them as a liquid waste processor, especially green malachite waste. Green malachite is a dye that is often used in industry. The magnetic properties possessed by magnetite material are beneficial in material recovery. The main stages of the study include: the synthesis of magnetite nanoparticles by electro-oxidation of iron in water; modification of material with salicylic acid; characterization of synthesized materials with XRD, FTIR, SEM, and BET; and waste water treatment of green malachite process by salicylic acid-modified magnetite as adsorbent. The results of XRD, FTIR, and SEM characterization showed that the salicylic acid modified magnetite nanoparticles were successfully synthesized. The results of BET characterization provide the specific surface area of particle of 88 m2/g which shows the potential of the material as an adsorbent. The application of material as an adsorbent successfully absorbed 88% green malachite with an adsorption capacity of 15.5 mg/g.

Keywords
salicylic acid-modified magnetite nanoparticles. green malachite, adsorbent

Topic
WASTE AND ENVIRONMENTAL MANAGEMENT

Link: https://ifory.id/abstract/FLndVWYEHXtN

Corresponding Author
Alia Fibrianingtyas

Institutions
Brawijaya University

Abstract
According to Dede (1997) in Suharjitno (1998), the communities around and within the forest are generally disadvantaged people, the socio-economic conditions of this group of people are generally still low. Activities of the Tumpangrejo Hamlet community in agricultural cultivation in the area of UB forest, none of the residents planted major food commodities, such as rice, soybeans, and tubers. This is not enough to replace the role of rice as the main food for the local community. The objectives of this study are: 1) to identify the role of forest peoples in utilizing forest commodities to support household food security; 2) identify the relationship of the role of forest area communities to the level of household food security. This study uses a qualitative approach with descriptive data analysis methods. The results of this study are the role of the Tumpangrejo hamlet community in utilizing forest commodities unable to support household food security. So that the people of Tumpangrejo hamlet are classified into food insecurity groups, because availability of staple food does not exist, the average frequency of eating a community is 2-3 times a day, the community has expenditure on animal protein food and/or vegetable protein only.

Keywords
Food Security, Household, Community Forest Area

Topic
FOOD SAFETY AND SECURITY

Link: https://ifory.id/abstract/UhTyvG9qzpVu

Corresponding Author
Suprayogi Suprayogi

Institutions
a, b, c Department of Agroindustrial Technology, Faculty of Agriculture Technology, University of Brawijaya, Indonesia
a* suprayogi99[at]ub.ac.id

Abstract
This research aimed at optimizing the combination of sugar addition (%w/v) and yeast concentration (%v/v) on alcohol fermentation stage in the production of red dragon fruit vinegar. In this study, 8%(w/v) was used as the lower limit and 12%(w/v) was used as the upper limit for sugar addition. While 0.2%(v/v) used as the lower limit and 0.8%(v/v) was used as the upper limit for yeast concentration. The results from alcohol fermentation process, in which the alcohol concentration ranged from 4 to 14%(v/v) was then used as the response and added to Response Surface Methodology (RSM) for obtaining the optimal solution. The results showed that the optimal solution for sugar addition was 12%(w/v) and yeast concentration was 0,8%(v/v) producing alcohol with concentration of 7.956%(v/v) and the accuracy of 94.51% based on RSM program. The characteristics of red dragon fruit vinegar from the optimal solution was as follows: final alcohol concentration of 1.12%(v/v); acetic acid concentration of 3.43%; pH of 3.5; total soluble solid (TSS) of 3.4ºBrix; IC50 of 20.2665 mg/ml; and diameter of inhibition zone (antimicrobial) of 0.67 cm, respectively. However, the acetic acid of red dragon fruit vinegar was still lower than that of the standard and other commercial vinegar products. Yet, utilization of subgrade red dragon fruit as vinegar was found to increase the antioxidant activity by 20.34%.

Keywords
Red Dragon Fruit, Vinegar, Fermentation, Sugar Addition, Yeast Concentration

Topic
FOOD MICROBIOLOGY

Link: https://ifory.id/abstract/RnXepEQrv8HY

Corresponding Author
Irnia Nurika

Institutions
Universitas Brawijaya

Abstract
Phlebia sp. MG-60 is one of white rot marine fungi produced enzyme MnP on the hypersaline condition which could potentially degrade lignocellulose especially lignin and to produce ethanol directly through integrated fungal fermentation. This study aimed to determine the effects of the addition of MnSO4 and sea salt on the degradation of lignocellulosic compounds and ethanol production using Phlebia sp. MG-60. The results showed that the addition of MnSO4, sea salt, and their interaction significantly affected on the change of weight loss, total soluble phenol (TSP), total reducing sugar (TRS), pH, lignin concentration, and bioethanol concentration. The best treatment was obtained from the addition of MnSO4 300mg/l, sea salt 3% and 20 days of incubation time. This treatment has the highest value of TRS (22.471 mg/g), TSP (0.334 mg/g), weight loss (16.23%), and ethanol (0.1%), with the lowest value of lignin (19.17%) and pH (6.1). The present results indicated that suitable culture conditions could significantly improve integrated fungal fermentation.

Keywords
Lignocellulose; Ethanol; MnSO4; Phlebia sp. MG-60; Sea Salt; OPEFB

Topic
RENEWABLE ENERGY AND BIOREFINERY

Link: https://ifory.id/abstract/YGVxn7qmUwHg

Corresponding Author
mahmuddin ridlo

Institutions
Department of Agroindustrial Technology – Faculty of Agriculture Technology – University of Brawijaya

Abstract
Karamunting (Rhodomyrtus tomentosa (Ait.) Hassk) including horticulture with superior compounds. The benefit of fruit parts has been used as traditional herbs in Malaysia, Vietnam, Thailand and China. In Indonesia, this plant grows as wild plants in shrubs and forests of Sumatra, Kalimantan and Sulawesi Islands. The degradation of bioactive compounds from karamunting fruit can be minimized by the extraction process. The purpose of research is to obtain the extraction process conditions and the best quality of fruit. The method chosen for the extraction process is the Microwave Assisted Extraction (MAE). MAE is a modern extraction method that utilizes microwaves to increase the effectiveness and efficiency of cell breakdown. The molecular movement of microwaves produces friction and heat energy in the material so that the cell wall and tissue material will be damaged, and the solute can finally come out. The extraction process consists of 2 factor variables, namely extraction time (seconds) and solvent volume (ml). The parameters of the analysis to determine the best conditions of the extraction process were Total Flavonoid Content (TFC), Total Anthocyanin Content (TAC) and extract volume. Permili energy (KJ / ml) was carried out to determine its effect on the three parameters of analysis produced. Based on the results of karamunting fruit extraction, the highest yield of extract was 1.68% (v / b), the highest total flavonoid 2563.79 mg QE / g BK and total anthocyanin 651.26 mg / gram.

Keywords
Anthocyanin, Karamunting Fruit, Flavonoids, Microwave Assisted Extraction, Extract Yield

Topic
AGRICULTURAL PRODUCT TECHNOLOGY

Link: https://ifory.id/abstract/cLtpE3DFThkb

Corresponding Author
Eko Budi Minarno

Institutions
Biology Department, Faculty of Science and Technology, Maulana Malik Ibrahim Islamic State University of Malang

Abstract
Emprit ginger (Zingiber officinale var. Amarum) is used by the people of Duwet Krajan Village, Tumpang District, Malang Regency, among others, for medicinal plants. The utilization of these plants is a form of local wisdom that is owned by the community. The purpose of this study was to analyze the use of empirical ginger as a medicinal plant by the people of Duwet Krajan Village, Tumpang District, Malang Regency. This research was conducted by survey method with semi-structured interview techniques and observations. Research data in the form of types of utilization, processing methods, compounding methods, methods of acquisition, and conservation efforts. Respondents numbered 10 people determined by purposive sampling method based on knowledge of ginger empiric and their participation in training held by the Manpower Office. Data analysis used descriptive analysis techniques and literature studies. The results of the study showed the types of utilization, namely treating cold by 30%, treating fever by 20%, relieving coughs by 100%, treating dizziness by 20%, warming the body by 60%, and treating aches of 10%. The method of processing is by making instant ginger powder by 70%, drying by 20%, and boiling at 10%. The way of compounding is by brewing without any additional ingredients by 50% and brewing with additional ingredients by 50%. The way to get it is by buying 10% and cultivating in the field/yard by 90%. Conservation efforts are carried out, namely by cultivating in the field/yard also carried out as a form of livelihood of the local community.

Keywords
Emprit ginger, Duwet Krajan Village

Topic
AGRICULTURAL PRODUCT TECHNOLOGY

Link: https://ifory.id/abstract/gaQp7dytzFh4

Corresponding Author
Sucipto Sucipto

Institutions
(a) Departement of Agroindustrial Technology, Universitas Brawijaya.
(b) Halal Qualified Industry Development (Hal-Q ID) Universitas Brawijaya, ciptotip[at]ub.ac.id

Abstract
This study aims to identify and measure the activity of waste that occurred, performance sigma value, and obtain solutions which do by the researcher in Consumer Packing Division PT Z. Waste is measured and assessed using the methods of Lean Six Sigma and Failure Mode and Effect Analysis (FMEA). Based on research, activity categorized waste activities include Defect, Waiting, Non Utilizing People-s Talent, Transportation, and Motion. Measurement focused on the largest waste Defect Broken Pack. The result showed DPMO value 4089.2475 with level sigma 4.14 and Index Capability Process Capability (Cp) 1.31. FMEA analysis showed 8 causes factors of the failure broken pack. Four failure mode of which exceeds the critical value that is less of a response operator (RPN = 150), lack of control of packaging (RPN = 126), less skilled workers (RPN = 120) and the inaccuracy of allocating the number of workers (RPN = 105). Therefore the provision of on the job training, proper allocation of workers during breaks, the packaging audit of the suppliers of packaging and increase the number of workers needed to support the efficiency of the flour packing process.

Keywords
DPMO, FMEA, Lean Six Sigma, Packing, Waste

Topic
FOOD SAFETY AND SECURITY

Link: https://ifory.id/abstract/EaKHLbu2eNcV

Corresponding Author
Irnia Nurika

Institutions
Universitas Brawijaya

Abstract
Phlebia sp. MG-60 as one of the white-rot fungi, which has an ability to produce ethanol from lignocellulosic biomass with a single process. This study aimed to determine the effects of nutrition addition and time of incubation for ethanol production, generated from lignocellulose degradation of OPEFB biomass by Phlebia sp. MG-60. By using a factorial experiment in a randomized block design, the effect of malt extract concentration and time of incubations were tested. The results revealed the addition of malt extract and time of incubations, as well as the interaction of both, were found to significantly influence the ethanol concentration (ρ value <0.05). The best treatment was obtained from the addition of malt extract 0.2 g/L, which released the highest amount of total reducing sugars, 26.489 mg/g during 15 days of incubations. Meanwhile, the lowest amount of lignin released 12.91%; weight loss 19.01% produced from 28 days incubation. Furthermore, the highest ethanol concentration (0.28%) was generated from the addition of malt extract 0.2 g/L for 5 days incubation.

Keywords
: OPEFB, ethanol, lignocellulose, malt extract, Phlebia sp.MG-60.

Topic
RENEWABLE ENERGY AND BIOREFINERY

Link: https://ifory.id/abstract/CMBG6QmqYLvW

Corresponding Author
Samsul Hidayat

Institutions
a) Jurusan Fisika FMIPA UM Jl Semarang 5 Malang Indonesia
samsul.hidayat.fmipa[at]um.ac.id
b) Jurusan Biologi FMIPA UM Jl Semarang 5 Malang Indonesia
c) Jurusan Kimia FMIPA UM Jl Semarang 5 Malang Indonesia
d) Jurusan Elektro FT UM Jl Semarang 5 Malang Indonesia

Abstract
Applications of quadcopter or hexacopter have made easy for plant care. This Unmanned Aerial Vehicle (UAV) technology can accelerate the spread of insecticides, fertilizers, seed sowing, palm pest control, and so on. The translation of air around the UAV needs to be considered to prevent damage of plant. The hit of air can cause broken branch, fall leave, insects to feel uncomfortable, getting into the sidelines of the plant, damage flowers, damage the fruit, or may damage the all plant. The restriction of the wind speed is very useful. The air blows can help pollinate, increasing the air circulation, decrease humidity, decrease the fungi, and so on. For this reason, the distribution of air pressure due to propeller activity needs to be known. This study aims to determine the air pressure distribution, with variations in lift and distance of the measuring point from the UAV propeller. The step of the research is measuring air pressure under a UAV quadcopter which has a total thrust of not less than 10kg. Fifteen air pressure sensors are arranged under the UAV. Four of fifteen sensors are connected to the Digital Storage Oscilloscope (DSO). The propeller which used in quadcopter is 3080 and 2255 with a 120kv-340kv brushless motor. The results of this study can at least be taken into consideration in the operation of quadcopter UAVs, which in this study found that the air pressure difference reached 0.02kPa. This pressure is too large for rice plants.

Keywords
quadcopter, air pressure, plant care.

Topic
AGROINDUSTRIAL PRODUCTION SYSTEM MANAGEMENT AND REGULATION

Link: https://ifory.id/abstract/qLJh4bPMAHXk

Corresponding Author
Bambang Raditya Purnomo

Institutions
1. Doctoral Program of Management Science, Airlangga University

2. Economy and Business Faculty, Airlangga University

Abstract
Abstract. The increasing number of person with disability in Indonesia is of particular concern to governments, practitioners, and academics. Various programs are carried out to empower them. This literature review aims to examine empowerment programs that have been carried out in Indonesia for the disabled person and how to evaluate these programs. Review is carried out systematically using the Prisma Statement method. Search done on local publications includes Google Scholar, Neliti.com, and Garuda Portal. From the search results obtained 74 articles that meet search criteria

Keywords
disability, economic empowerment

Topic
Environmental Economics

Link: https://ifory.id/abstract/6fRyzG4m2hYv

Corresponding Author
Eka Destika Sandakila

Institutions
Magister Management, Faculty of Economics and Business, University of Indonesia
Jl. Salemba Raya, RW.5, Kenari, Kec. Senen, Kota Jakarta Pusat, Daerah Khusus Ibukota Jakarta 10430

Abstract
Many of organization implement code of conduct as an explicit guidance to help employees knowing the standard of ethics from management-s viewpoints, with the aim to gain productivity achieving organization-s goal. The purpose of this paper is to examine the influence of ethics institutionalization on organizational citizenship behavior and to analyze the role of organizational commitment in mediating the impact of ethics institutionalization on organizational citizenship behavior with psychological empowerment as a moderator in one of State Institution in Indonesia. This research will use quantitative approach with online survey method to 250 respondents which were determined by purposive sampling method. Respondents come from employees of XYZ State Institution who already work at the institution for minimum 2 years. Based on analysis from preliminary literature, it can be concluded that all variables used in this research are valid, reliable and having correlation with each others. This research is still on progress and result will be discussed further.

Keywords
Institutionalization of Ethics; Explicit Ethics Institutionalization; Implicit Ethics Institutionalization; Organizational Commitment; Psychological Empowerment; Organizational Citizenship Behavior

Topic
Management

Link: https://ifory.id/abstract/cMDYTRadrPL2

Corresponding Author
Ismiyati Ismiyati

Institutions
Faculty of Economics, Universitas Negeri Semarang
Student of Postgraduate Program, PPS Yogyakarta State University

Abstract
The study aims to determine about how does school facilities affect school quality at vocational high school in Pati, Central Java, Indonesia. The approach and methods used in the study was evaluation research using a discrepancy model. The data were collected by observation, interview, and documentation. Meanwhile, the analysis used interactive model by Milles and Huberman. The results showed that the school facility at vocational high school in Pati is up to standard of Regulation of National Education Minister Number 40 Year 2008. The value of school infrastructure is 72.5% or adequate category, while school facility is 84.3% or adequate category. School facilities become one of the factors in supporting student learning achievement and teacher performance. Therefore, learning achievements can be improved through improved the school facilities. Thus, it is able to improve the school quality.

Keywords
school facilities, discrepancy model, school quality, learning achievement

Topic
Economics Education (Accounting, Cooperative and Office Administration Education)

Link: https://ifory.id/abstract/nuDY8ymvN7gd

Corresponding Author
Refi Salma Irelli

Institutions
ab) School of Business and Management, Bandung Institute of Technology, Jl. Ganesha No. 10, Bandung, 40132, Indonesia

Abstract
Generation Y individuals start use social media as their main tools to obtain information about product and brand. One of the most active social media in Indonesia is Instagram. Broadcasting Brand-Generated Content (BGC) can be the most common marketing strategy that small enterprise will use on Instagram. The consumer perception of Brand-Generated Content (BGC) and consumer perception of Consumer-Generated Advertising (CGA) on Instagram can influence consumers- purchase intention towards fashion brand. However, study shows that online consumers more likely rely on information generated by other consumers than generated directly by marketers to assist their purchase decision because they perceive consumers will provide a more honest information than advertiser. Finding confirmed that consumer perception of BGC and CGA has positive influence on purchase intention on Instagram. Consumer needed BGC because it consists of important factors that could influence them to have intention to buy: expertise, relevance, reduce risk, positive valence, informativeness, and credibility. Furthermore, consumer also needed CGA to support they information of product because CGA has homophily and originality factor.

Keywords
Consumer Perception, Brand-Generated Content, Consumer-Generated Advertising, Purchase Intention, Fashion Brand, Social Media

Topic
Management

Link: https://ifory.id/abstract/EJWhzgf8y4UD

Corresponding Author
Yuga Hastungkara

Institutions
Department of Magister Management, Universitas Indonesia
Gedung Prof. Wahjudi Prakarsa Jl.Salemba Raya 4, Jakarta Pusat 10430, Indonesia
*hastungkarayuga[at]gmail.com

Abstract
Although the wearable devices are popular and growing rapidly in technology development, the market share of the smartwatch is still low. Yet is little known about why some people are not interested to adopt smartwatch. The aim of this research is to investigate the influence of software, hardware, design, and consumer motivation related to perceived value and attitude toward intention to purchase a smartwatch. This research examined purchase intention by applying the construct from the Theory of Planned Behavior (TPB). Hypotheses were tested and collected from 330 sample data among Indonesian people using an online survey. From the factors affecting purchase intention, the attitude using smartwatch has a stronger effect than consumer motivation. Perceived value, consist of social, emotional, price, and performance quality, which affected by software and design aesthetics, has a direct effect on attitude using a smartwatch, along with hardware and consumer motivation. In this research, the author found that hardware doesnt have an effect on perceived value, while software and design aesthetics are didnt affecting attitude, and perceived value doesnt have a direct effect on purchase intention. The results from this research will provide the smartwatch manufacturer with practical guidance for optimizing competition and marketing strategies of the smartwatch, especially for first-time buyer in Indonesia.

Keywords
Wearable device, Smartwatch, Smartwatch adoption, Purchase intention, Theory of Planned Behavior

Topic
Management

Link: https://ifory.id/abstract/WjG3MhebaP48

Corresponding Author
Tusyanah Tusyanah

Institutions
Universitas Negeri Semarang

Abstract
Indonesia needs prospective entrepreneurs who can decrease the unemployment rate. Universities are required not only to prepare skillful alumni; but also to create prospective entrepreneurs. UNNES commits it by making curriculum changes. It provides Entrepreneurship subject, Business Incubator and internship. The objective of the study is to analyze the students- entrepreneurial intention with internship as the moderating variable through TPB Theory. It was a quantitative research with 145 students as the samples of the study. Data were collected by distributing questionnaires and analyzed them by SPSS. The results showed that the effect of belief on attitude, subjective norms, and perceived behavioral control was positive and significant. The effects of attitude, subjective norm, and perceived behavioral control were significant to influence students- entrepreneurial intention to be entrepreneurs. Internship successfully became the moderating variable for attitude, subjective norms and perceived behavioral control on entrepreneurial intention. The direct effect attitude on entrepreneurial intention was 34.5% and went up to 42.3% moderated by internship. The direct effect subjective norm on entrepreneurial intention was 25.9% and went up to 32.8% moderated by internship. Then, the direct effect perceived behavioral control on entrepreneurial intention was 48.8% and increased to 51.5% moderated by internship. It is concluded that internship was able to strengthen the students- entrepreneurial intention to become entrepreneurs. Therefore; the internship program needs to be continued so students know that independent work is more fun than working for others.

Keywords
Internship, Intention, Entrepreneurship, TPB

Topic
Economics

Link: https://ifory.id/abstract/3q4bnuGw6AjP

Corresponding Author
Erwin Rivaldi Jaya Nugraha

Institutions
(a) University of Indonesia
(b) Binus University

Abstract
A high level of employee turnover in the company might cause negativity in this company such as decreasing productivity and might take a toll on financial budget. Companies will strive to minimize the level of voluntary employee turnover where possible. PsyCap was explored in many researches related to turnover intention and was positively proven. This study aims to investigate the effects of Psychological Capital (PsyCap on employee turnover intention through three mediating variables. Quantitative methods were used, and this study extracted 257 samples from State-Owned Enterprises (BUMN) engaged in telecommunications in Indonesia. In order to better represent the company as a whole, stratified sampling was used. SPSS software was used to process the data with Process V 3.0 macro as an addition. The results of this study revealed positive & significant relationship of PsyCap towards mediating variables while significant & negative relationship between mediating variables and turnover intention. In addition, there is evidence of mediating effects of PsyCap towards turnover intention through job satisfaction, work engagement and psychological well-being.

Keywords
Psychological capital, work engagement, job satisfaction, psychological well-being, turnover intention

Topic
Management

Link: https://ifory.id/abstract/KVQqzgrpRvyU

Corresponding Author
Raisa Fitriaini

Institutions
Center for Economic Studies, Parahyangan Catholic University

Abstract
Fiscal policy is a policy imposed by the government to influence economic activity in the real sector through expenditure and revenue. Fiscal policy help in smoothing business cycle fluctuations (boom or recession) makes it a potential tool for economic stabilization. Referring to the theory, fiscal policy should have a countercyclical behaviour. Vice versa, many evidence shows if the behaviour of fiscal policy diverse among countries. Therefore, the purpose of this study is to find the fiscal policy behaviour in ASEAN (2001-2018) using the Panel Least Square analysis tool. The estimation results show that the behaviour of fiscal policy in ASEAN are countercyclical for government revenue and fiscal balance approach, whereas government expenditure approach is procyclical.

Keywords
Fiscal policy; fiscal policy behaviour; countercyclical; and procyclical

Topic
Economics

Link: https://ifory.id/abstract/ECVcKzAnYpqg