bluuebunny/crossref_metadata_2025_split huggingface dataset:
A sensitivity analysis of stochastic programming for reverse logistic of herbs agro-industry: a case study of herbs logistic in Indonesia
Authors: Rakhmasari A A , Djatna T , Suparno O , Rusli M S 
Published: June 2020

Abstract
This paper analyses the sensitivity of reverse logistic formulation of herbs agro- industry based on fuzzy stochastic mixed integer linear programming. A case study from real world problem of herbs logistic in Indonesia is provided in order to respond stochastic challenges in the reverse logistic system. For implementation purpose of this current progress, some related historical and hypothetical data were deployed. The model was then used to test how far this fuzzy quantitative modelling is capable to solve the problem within available data ranges with consideration on possibility in each data occurrence. A GRG non-linear was used as model solution to solve the fuzzy stochastic modelling with implementation using Excel solver. The fuzzy quantitative modelling result with a case study in herbs logistic in Indonesia is concluded with verification and validation on current model formulation for decision making purposes in herbs reverse logistic.
Application of six sigma method to minimize risk of rejection product: A case in cheese industry of company X
Authors: Machfud  , Atika N 
Published: June 2020

Abstract
The importance of quality and the intense competition in the industries encourage company to evaluate the risks in the production process so company can produce high quality and competitive product. This research aims to identify factors that cause defects in product, calculate the sigma level of the production process and arrange mitigation actions that can be done to minimize the risks in the food industry that has high level of defective products. This research used ix Sigma DMAIC (define, measure, analyse, improve, control) and FMEA-HOR (Failure Modes and Effect Analysis House of Risk) to analyse dominant risks and mitigation actions from expert’s perspective. The calculation results show that, sigma level in production process is 3.20. There are 5 risk agents in the production process that cause defect in product and 9 priority mitigation actions to minimize the risks. Example of priority actions such as invite online operators in the Daily Meeting System (DMS), conducting centre lining (marking position), and optimization of scheduling Preventive Maintenance (PM), make One Point Lesson (OPL), and standardization cleaning-inspection-lubrication (CIL).
Operational excellence implementation in wood industry (Case study: PT XYZ)
Authors: Maulana M R , Harjomidjojo H , Soetara A 
Published: June 2020

Abstract
Indonesia’s wood industry is projected to improve in 2019. However, some challenges are facing the wood processing industry such as increase of raw materials cost, production cost, labour wages, and additional expenditures. Customers also require shortened lead time, higher quality, and more diverse product. Strategy that can be developed to face those challenges is operational excellence. This research is aimed at measuring the implementation of operational excellence at PT XYZ based on XEM and formulating recommendations for continuous improvement. The result shows that the two lowest scores are for implementing basic problem solving and hourly report. In terms of the basic problem solving, the lowest attribute score is about implementing 5 whys, and for the hourly report the lowest attribute score is about monitoring. Based on those results, the recommendation for implementing basic problem solving is to revise the 5 whys becomes 3x5 whys and to provide training on increasing problem-solving skill. Recommendation for implementing hourly report is to revise the foreman weekly progress report by adding monitoring aspect and to provide training on increasing awareness about the importance of monitoring hourly report. Different scoring result has been found between managers and supervisors. Therefore, the communication between them must be improved.
Comparison of Performance and Total Energy Requirement for Several Harvesting Method of Indonesian Farmers
Authors: Putri R E , Santosa  , Cahyani G A , Fahmy K , Arlius F , Hasan A 
Published: June 2020

Abstract
Rice harvesting is carried out by farmers both conventinal and machinery. The evaluation of energy consumption in this study was conducted to determine the total energy uses during harvesting for three harvesting method (conventional, semi-machinery, and combine harvester). The result show, detail of harvesting energy requirement using combine harvester are 151.64 MJ/ha of engine energy, 1381.53 MJ/ha of fuel energy, and 18,95 MJ/ha of human energy. However, manual harvesting only human energy (104,4 MJ/ha). Harvesting with semi machinery (a sickle and power thresher) consist of engine energy (7.92 MJ/ha), fuel energgy (752.73 MJ/ha), human energy (95.81 MJ/ha). The highest energy requirement for harvesting method of Indonesian farmers is uding combine harvester, meanwhile combine harvester have highest capacity and efficiency.
The Product Quality Improvement: An Example from a Rice Milling in Indonesia
Authors: Astuti R , Thessalona I , Setiyawan D T 
Published: June 2020

AbstractThis study aimed to determine the quality attributes of rice products which were important for the consumers and the level of consumer satisfaction with these attributes. Recommendations were then given to improve the quality of rice products based on consumer voices. The research was conducted at the Sri Margo Joyo (SMJ) rice milling that produces packaged rice with the King Banana brand. QFD was used in this study for product design, process planning, process design, and process control. Variables in this research were determined based on quality dimension. Respondents in this study were 60 King Banana rice consumers and 2 expert respondents. The results showed that King Banana rice products need to make improvements to the attributes of colour, texture, product damage level when received by the consumers, and variations in packaging weight. The priority of technical response to improve the quality attributes of rice products were the improvement of storage processes, proper maintenance of machinery and equipment, and scheduling of spraying and fumigation every 1 month. Process control that needs to be applied to the SMJ rice mill were monitoring the mixing of grade A and grade B grain, adding the process of ignition, monitoring temperature, humidity, and insecticide use in the rice storage room, monitoring the maintenance scheduling of rice processing machinery and equipment, and monitoring the vacuum packaging.
Diversity of Insect Pest in Monoculture and Polyculture Nutmeg (Myristica fragrans Houtt.) Plantation in South Aceh District
Authors: Agustinur  , Lizmah S F , Sarong M 
Published: June 2020

Abstract
Nutmeg (Myristica fragrans Houtt) is one of the most potential plantation commodities in Indonesia. Among the locations of nutmeg production is in South Aceh, and most of them are smallholder plantations. The highly fluctuation in nutmeg productivity has pushed some farmers to change their plantation type to polyculture, although the others still maintain the plantations in monoculture type. The difference of plantation type is estimated to affect toward the ecosystem composition, including the composition of insects potentially as a pest in nutmeg. This study aims to determine the diversity of insects that have the potential as pests in both types of nutmeg plantations. This research was conducted on nutmeg plantations in Samadua and Meukek Sub Districts, South Aceh District. Insect collection was carried out by using light trap, pit fall trap, and yellow pan trap. Identification of the insects order was carried out at the Laboratory of Agriculture Faculty Teuku Umar University. The results of the data analysis showed that both types of nutmeg plantations had moderate pest insect diversity levels, diversity index in monoculture plantation 1.39 and polyculture plantation 1.8, respectively, where no group of orders dominated. There are 5 orders of insects known to have potential as pest insects in monoculture plantations, while in polyculture plantations are 6 orders and 2 orders of insects as vectors of plant diseases.
Application of Microalgae and Agrobost Symbiotic Mutualism Technology in Palm Oil Mill Effluent (POME) Processing
Authors: Restuhadi F , Zalfiatri Y 
Published: June 2020

Abstract
The purpose of this study was to get the selected treatment mutualism symbiosis between microalgae (Chlorella sp.) and agrobost, thus can decrease of pollution level of Palm Oil Mill Effluent (POME) according to standard quality. This research used a completely randomized design (CRD) with 5 treatments and 3 replications. The treatments in this addition was microalgae Chlorella sp. as much 800 ml/L (Abundance of cells 6.3 x 106 cell/ml) of POME with some variations concentrations of Agrobost (0%, 1%, 2%, 3%, and 4%). The data obtained were analyzed statistically using ANOVA and DNMRT at 5% level. The result showed that the addition of Agrobost had significant affect for COD, BOD, oil, pH and TSS. The treatment chosen from the result of this research was the P4 treatment showed the highest level of reduction which had COD 91.67%, BOD 95.93%, Oil 80.18%, TSS 71.69% and pH 12.08%.
Coconut Oil Production with Various Roasting Temperatures and Dried Grated Coconut as A By-Product
Authors: Kumalasari I D , Santosa I , Sulistiawati E 
Published: June 2020

Abstract
Coconut meat used as raw material for making coconut oil. The purpose of this study was to evaluate the physical and chemical quality of coconut oil and dried coconut meat with various age of coconut fruits as a by-product of pressing roasted coconut with various temperatures. Oil from coconut meats were obtained by heated to 70 °C, 80 °C, 90 °C, 100 °C, 110°C for 100 min then pressed and filtered. Dried coconut meat from pressed coconut meats that has been roasted with various temperatures then analyzed its physico-chemical properties and nutritional value. The results showed that the mature of coconut meat with roasting temperatures of 90 °C has white color of flour. Proximate testing shows that the roasting temperature of 90 °C has the highest carbohydrate (17.93%), mineral (3.53%) and fiber content (43.74%). While coconut meats roasted with 80 °C has higher levels of protein (29.03%) and fat (51.53%). Nutritional values such as water content, ash, protein, mineral and fat content showed that the best treatment is roasting with temperature 90 °C for 100 minutes. The conclusion of this study, the rate of optimum temperature for coconut oil extraction are 80 °C - 90 °C and the best nutritional value of dried coconut flour as by-products also at that temperature. Desiccated coconut potentially developed into wide range of high value products because has high nutritional value, especially dietary fiber and protein.
Making Skin Lotion From Virgin Coconut Oil With Adding Several Natural Plants Extract as a Skin Protector
Authors: Rini  , Anggraini T , Ritonga N B 
Published: June 2020

Abstract
Virgina Coconut Oil is containing saturated fatty acid compound such as lauric and oleic which can soften dry and rough skin. While the natural ingridients of black tea extract, secang wood and telang flower contain polyphenol compounds which have antioxidant activity, they also have attractive colors making them suitable as natural dyes for cosmetic ingredients. The purpose of this study was to determine how to make skin lotion from VCO with the addition of natural coloring extracts, as well to determine the physical, chemical, microbiological and the level panelists preference for color, odor, adhesiveness and appearance. The result of this study indicate that the best formulation is foun in F3 with the addition of black tea extracts. VCO skin lotion with the addition of black tea with has a specific gravity value of 0,97, stability of 70,12%, dispertion of 7,3 cm, pH 6,3, free fatty acids 0,021%, antioxidant activity 83,26%, SPF 36,13 and total plate figures were not found. The panelists preference level for color 4.0, odor 4.3, appearance 4.5 and adhesiveness 4.5.
Study on the effects of harvesting time and storage conditions of Tacca leontopetaloides (L.) Kuntze Tuber in an Giang Province, Vietnam
Authors: Binh H T , Dao V T T 
Published: June 2020

Abstract
The study was conducted to determine the harvest time and weight of Tacca tubers (Tacca leontopetaloides (L.) Kuntze) for flour production. It also assessed changes in quality according to pretreatment methods as well as storage conditions over an 8 week period. Results showed that Tacca tubers harvested after 6 months of planting will have a high dry matter content and flour recovery efficiency, especially at month 7th but remains unchanged afterwards. In addition, tubers weighing over 150g will give better flour recovery efficiency. Washing before storage also affects the quality of tubers more than preservation mode. During storage, tuber weight decreases with amount of dry matter increases. Particularly, the amount of sugar, total Saponins and total Polyphenols decreases but Starch content tends to increase slightly after 6 weeks of reduction. Despite the change in color, surface condition and structure, the Tacca tuber retains good sensory properties during storage.
Encapsulation of Cinnamaldehyde from Cinnamon Essential Oils in Cyclodextrin
Authors: Chimvaree C , Tepsorn R , Supapvanich S , Wongs-Aree C , Srilaong V , Boonyaritthongchai P 
Published: June 2020

Abstract
Cinnamaldehyde is the major compound in cinnamon essential oil which has effective inhibiting the microbial growth and revealed low physicochemical stability, low solubility in water. The aim of this study was the encapsulation of cinnamaldehyde in β-cyclodextrin in order to obtain a complex which can be used for preserving fresh-cut produce. The encapsulated complex cinnamaldehyde/ β-cyclodextrin was prepared using the inclusion complex method. The various ratios of cinnamaldehyde/β-cyclodextrin on cinnamaldehyde releasing efficiency was investigated. The various ratios of cinnamaldehyde/β-cyclodextrin as 50:50, 40:60, 30:70 and 25:75 were monitored. Encapsulation efficiency (%EE) and encapsulation capacity (%EC) of encapsulated cinnamaldehyde powder were analyzed. The results showed that the ratio at 25:70 cinnamaldehyde/β-cyclodextrin showed the highest %EC and %EE when compared with other treatments. The ratio at 25:75 had faster control release in first 3 h. Antimicrobial activity was tested against two strains of gram-positive (Staphylococcus aureus and Bacillus cereus) and two strains of gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacteria. β-cyclodextrin with encapsulated cinnamaldehyde exhibited good inhibitory effect against all tested bacterial strains.
Impacts of Paraffin Wax and Propolis on Controlling Crown Rot Disease and Maintaining Postharvest Quality of Banana
Authors: Sripong K , Srinon T , Ketkaew K , Uthairatakij A , Jitareerat P 
Published: June 2020

AbstractCrown rot disease is a major cause of losses during transportation, storage, and marketing of banana. In this study, the effects of paraffin wax, propolis extract and their combination on controlling crown rot disease and maintaining the quality of banana cv. Hom Thong were investigated. Crown of banana fruit were coated with 50% propolis, 100% paraffin wax and 100% paraffin wax combined with 50% propolis. Banana crown treated with 250 ppm prochloraz and non-coated fruit were used as the controls. All treatments were packed in corrugated box, stored at 13°C for 21 days (simulation for the transportation and storage) and then moved to ambient temperature for 6 days (simulation for the retail market). Results found that coating with paraffin wax combined with propolis showed the efficacy on controlling crown rot disease as same as using 250 ppm prochloraz. While coating with paraffin wax or propolis alone showed the incidence and severity of disease similar to non-coated fruit. Beside, coating with paraffin wax alone or combined treatment of paraffin wax and propolis could maintain some plant resistant mechanisms such as the content of total phenolic and the activity of phenylalanine ammonia lyase (PAL) in the crown of banana. For the quality of banana showed that coating with paraffin wax alone or the combination of paraffin wax and propolis were able to reduce weight loss, maintain firmness and color change of banana crown, and it did not affect to color change of peel and firmness of banana fruit.
Geoelectrical Investigation the Depth of Groundwater Potential for Irrigation of Paddy Fields
Authors: Yanti N R , Arlius F , Rusnam  , Berd I , Ekaputra E G , Setyoningrum S A 
Published: June 2020

Abstract
Groundwater is an opportunity for the irrigation of Paddy fields. A paddy field that is planted only one crop during the rainy season is an obstacle to the lack of rice production in the city of Padang. Meeting the need for rice consumption was sent from various western Sumatra areas. If this happens, again and again, it would threaten food security. This research to determine the depth of groundwater table potential has been carried out in Koto Tangah, Padang city. This study using the geoelectric resistivity method with Schlumberger Configuration and data processing using software IP2WIN. The resistivities value of these zones varies from 1.8 Ωm to 1761 Ωm. Layers found to the depth 20 m are a sub-surface layer, clay, sandy clay, and gravel. Layers of clay identified as Groundwater because it’s small so it can withstand water. Based on the results of comparative research data measurement of the estimation of the depth of the ground water level with a geoelectric tool and the depth of the ground water with a piezometer device obtained close relationship. So, from these results a linear regression equation can be made with the form of the equation Ý = 0.793X + 0.838X + 0.3636 and has an R2 of 0.8765.
Characteristic of Analogue Jerky Made from Moringa Leaves (Moringa oleivera L) with the addition of Tapioca Flour
Authors: Sayuti K , Yenrina R , Febri Y 
Published: June 2020

Abstract
Moringa leaves are known as miracle leaves because it contains substances that are useful as nutrients and beneficial to health, which have not been optimally utilized. This study aimed to determine the effect of tapioca flour addition on the characteristics of analogue jerky of Moringa leaves. The study design used a completely randomized design (CRD) with 5 treatments, that was the addition of tapioca flour (A; 45 g, B; 50 g, C; 55 g, D; 60 g, and E; 65 g) with 3 replications. It was conducted in two stages. The first step is to determine the products that are well received by using sensory evaluations (score ≥ 3.60) The second was to analyse chemical characteristic of the products. Data from chemical observations were statistically analysed using ANOVA and continued with Duncan New Multiple Range Test (DMNRT) at a significance level of 5%. The results showed that the addition of tapioca flour produced analogue jerky with a value of > 3.6 for colour, texture and taste, were the B, C and D treatment. From the statistically analysis showed there were significant differences of moisture content, fat content, protein content, calcium levels and crude fibre content between treatments B, C and D of analogue jerky, but there was no significant difference on the ash content of analogue jerky. B Product is the best product with a moisture content of 3.11 ± 0.19%, ash content of 0.94 ± 0.00%, fat content of 0.18 ± 0.02%, protein content of 8, 24 ± 0.01%, calcium levels 203.43 ± 0.03%, crude fibre content 0.42 ± 0.01%. No free fatty acids and number of peroxides were detected in the analogue jerky.
Removal of Chromium (VI) and Chromium (III) by using Chlorella sp Immobilized at Electroplating Wastewater
Authors: Elystia S , Edward H S , Putri A E 
Published: June 2020

Abstract
Heavy metals which is mostly contained in electroplating wastewater is Cr, in the form of Cr (VI) and Cr (III). Cr (III) is relatively unstable but tends to be dangerous, Cr (VI) is very stable and has a high level of toxicity which is dangerous for the environment. This study aims to determine the ability of microalgae Chorella sp immobilized with calcium alginate in removing metals Cr (VI) and Cr (III) in electroplating wastewater with variations cell density in beads 0; 1.53×108; 1.76×107 and 1.54×106 cells / bead, pH 3, 5, 7, and 9 with contact time 0; 12; 24; 36 and 48 hours. Allowance carried out by microalgae Chlorella sp immobilized in reducing Cr (VI) and Cr (III) metals in electroplating wastewater with initial concentrations of Cr (VI) 24.78 mg/l and Cr (III) 0.91 mg/l with highest efficiency value of 50.28% at pH 3, cell density 1.54×106 cells/bead within 48 hours
Investigation of Oil Palm Empty Fruit Bunch (OPEFB) Embedded with Artocarpus Odorattisimus Mechanical Behaviour as an Alternative Replacement for Raw Material in Wood Industry
Authors: Jundam M. F. , Mohd Shah M. K. , Abdul Karim M. H. , Madato L. 
Published: June 2020

Abstract
This paper presented the investigation of Oil Palm Empty Fruit Bunch (OPEFB) reinforced with Artocarpus Odorattisimus (Mahang/Tarap) board in which fabricated manually using hand lay method and hot pressed in order to determine a suitable alternative fiber board as a replacement for the usage of woods as raw materials in various types of industry. The idea of conducting this research came due to the worldwide community attention on major deforestation which may lead to natural disaster throughout the world. The effects of adding Artocarpus Odorattisimus (Mahang/Tarap) to the oil palm empty fruit bunch (OPEFB) on certain dry weight ratios are being studied and the main objective of this research is to determine certain mechanical properties of the board especially tensile strength to be compared to the pure oil palm empty fruit bunch (OPEFB) board (4.712 Nmm-2)[22]. The experimental process is carried out in accordance to test standard of ASTM D3039/3039m-17. Morphological structure study by using Scanning Electron Microscope (SEM) also conducted on the tested samples to further understand the board properties.Practically, aluminium swarf (chips) collected from an automotive production line is less likely to have any contaminants once the lubricants are removed. In theory, metals do not degrade in value and can be used infinitely.
Friction and Wear Study of Fe-Cu-C-CaF2 Self-lubricating Composite at High Speed and High Temperature
Authors: Mohan Sanjay , Anand Ankush , Arvind Singh R. , Jayalakshmi S. , Chen Xizhang , Konovalov S. 
Published: June 2020

Abstract
A novel Fe-Cu-C based self-lubricating composite is developed, wherein Calcium fluoride (CaF2) has been used as a solid lubricant. CaF2 is added in varying weight percentages of 3, 6, 9 and 12% to the base matrix comprising of Iron, Copper and Graphite (Fe-2Cu-0.8C). The composites were fabricated through Powder Metallurgy using uni-axial compaction and sintering. The developed composites were tested for friction and wear characteristics using a pin-on-disc configuration, conducted at a speed and load of 10 m/s and 20 N respectively. All tests were conducted at high temperature of 500°C for a constant sliding distance of 4000 m. Results show low coefficient of friction for the composites with 3-9 wt% CaF2 making them self-lubricating. Due to testing at high temperature, weight gain was observed in all the composites because of oxidation. The increase in weight gain was observed to be dependent on the CaF2 content. Adhesion, ploughing and delamination were identified to be the prominent wear mechanisms of the developed self-lubricating composites as revealed by SEM analysis.