bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of edible coating application by spraying method on the quality of red chili during storage
Authors: Wibowo C , Haryanti P , Wicaksono R 
Published: May 2021

Abstract
After being harvested, fruits continue their physiological activity, such as transpiration and respiration, which leads to deterioration. The main problem on maintaining the quality of fresh fruit and vegetables is regarding the shelf life. They have short shelf life due to the metabolism still occurs. Therefore, additional treatments are required to prolong the shelf life. Application of edible coating is one of a promising treatments. The coating is known for its ability to prevent moisture loss and create a barrier for gas exchange to give protection from fruits decay by applying it directly to the fruit surface. This experimental study used Completely Randomized Design with two factors. The first factor is the type of starch used for coatings consisting Canna edulis starch, potato starch and sweet potato starch, and the second factor is the variation of nozzle diameter consisting 0.6 mm, 1.0 mm and 1.5 mm. The parameters observed in this study comprised of color parameter (L-, a-, and b-value), ascorbic acid and moisture content, and firmness. The result obtained from this study were analyzed using the F test and continued with the Duncan Multiple Range Test. The result showed that the main material for producing edible coating gave a contribution on the alteration of red chili during storage. Moreover, the differences of diameter of nozzle sprayer also influence the adhering of the edible coating on the surface of the agricultural product. Based on the present research, the selected treatment combination application of an edible coating for red chilies was using of edible film made from sweet potato starch that sprayed with a with a diameter of 0.6 mm nozzle sprayer.
Volatile compounds profile of some Indonesian shallot varieties
Authors: Indrasari Siti D , Arofah Desi , Kristamtini  , Sudarmaji  , Handoko Dody D 
Published: May 2021

Abstract
Shallot, Allium ascolanicum L., is one of the leading horticultural commodities that are widely cultivated in Indonesia. Shallot is a commonly used seasoning for various types of dishes. This study aimed to determine the volatile compounds profile of some raw Indonesian shallot varieties. Four shallots varieties (Bima Brebes, Biru Lancor, Saptosari, and Filipin) were analyzed the volatile component profiles using Solid-Phase Microextraction (SPME)-Gas Chromatography-Mass Spectroscopy (GCMS). The GCMS analysis detected 104 types of volatile compounds in which the major volatile compounds were disulfides, sulfur-containing, thiophenes, and diverse functional groups. The most abundant volatile compound groups in the Bima Brebes variety were sulfur-containing compounds (40.61%), followed by diverse functional groups (28.43%) and disulfide (17.51%). In the Biru Lancor variety, the major volatile compounds were disulfide (44.68%), followed by sulfur-containing (30.90%) and thiophenes (8.80%). The most abundant volatile groups in the Saptosari variety were sulfur-containing (57.06%), followed by disulfide (22.68%) and thiophenes (9.19%). In the Filipin variety, the major volatile compound groups were disulfide (53.80%), followed by thiophenes (15.70%), and sulfur-containing (10.55%). The most abundant volatile compounds in all shallots volatiles were dipropyl disulfide, 1-methylethyl propyl disulfide, (E)-1-(prop-1-en-1-yl)-2-propyldisulfane, and propyl mercaptan.
The implementation of rice’s Good Agricultural Practices (GAP) in Panarukan-Situbondo
Authors: Yekti G. I. A. , Suryaningsih Y. 
Published: May 2021

AbstractThe level of dependence of farmers on chemical fertilizers and pesticides on rice plants can lead to soil nutrient degradation and pest resistance. Also, excessive use of chemicals in rice can leave a residue in the production of rice, thus affecting the food security of rice as a staple food of Indonesian society. Related to this, the government has begun to promote programs related to food safety, one of which is good cultivation techniques or often known as Good Agriculture Practices (GAP). The purpose of this study was to analyze the implementation of GAP for rice in Panarukan-Situbondo. Determination of respondents using a simple random sampling method as many as 60 respondents from two villages, Peleyan and Sumberkolak. While the analysis uses descriptive analysis with a questionnaire assisted. The results showed that the level of implementation of rice’s GAP was at a medium level (66.65%). The highest GAP aspects are in the aspect of nursery and planting, and the two lowest aspects are conservation and soil cultivation, as well as integrated pest and disease protection aspects.
Triple helix as an empowerment strategy for labor fishermen: a proposed model through action research study
Authors: Budiarti Laeli , Setyorini Christina Tri , Susilowati Dewi , Warsidi  , Sukardi Purnama , Jannah Miftahul 
Published: May 2021

Abstract
Labor Fishermen poverty has been an issue for a long time. Several factors cause fishermen poverty, environmental conditions of resources, culture, and structural. The purpose of this paper is to propose a community empowerment model, especially labor that the government can carry out in collaboration with universities and industry. The model formulated in this paper is compiled by conducting a study of the fishermen’s life in the village of Menganti Cilacap. In-depth interviews with fishermen and the village government are done to collect the data. An analysis was conducted to identify fishermen’s needs through government cooperation with universities and industries related to fishermen. The Triple Helix strategy, in this case, is carried out by researchers from Jenderal Soedirman University (university), the Menganti regional government, and the Department of Industry, Trade and Cooperatives (government), and the Mina Sidat Bersatu Cooperative (Industry). Implementing the triple helix strategy is expected to produce real breakthroughs that can be applied directly to improve labor fishermen’s welfare.
The factors contributing to the sustainability of agribusiness MSMEs in Sukoharjo Regency during the Covid-19 pandemic
Authors: Khomah I , Setyowati N , Harisudin M , Adi R K , Qonita A 
Published: May 2021

Abstract
MSMEs play a significant role as one of the elements that encourage the national economy and the Indonesian government highly supports the development of competitive and innovative MSMEs. Making innovation is one of the MSMEs’ efforts to survive during the Covid-19 pandemic because innovation and technology development can generate a creative industry. Technology development can support business activities but MSME players are also challenged with the Covid-19 pandemic today. However, the challenge can turn into an opportunity if they can take the advantage of using technology for online marketing. Competitive MSME players can improve their performance, which can keep their existence and contribute to their business sustainability. This research aims to investigate the factors influencing the sustainability of agribusiness MSMEs in Sukoharjo Regency during the Covid-19 pandemic. This research applied SEM analytical method with SmartPLS 3.0 software. The respondents taking part in this study were 120 agribusiness MSMEs operating in Sukoharjo Regency. The results of the research signify that the factors affecting the sustainability of agribusiness MSMEs in Sukoharjo Regency include the external environment, MSME players’ perception, and infrastructure/technology utilization.
Antioxidant activity of kecombrang preserving powder using foam mat drying method
Authors: Naufalin R , Erminawati  , Wicaksono R , Febryani A T , Latifasari N 
Published: May 2021

Abstract
Food production is one of the easily damaged products, both in processing and during product storage. Therefore, to prevent damage made preservative powders from natural ingredients. One of them is obtained from the flowers of the kecombrang (Etlingera elatior). Kecombrang plant flowers contain bioactive components, namely, alkaloids, polyphenols, flavonoids, and essential oils. This study used a reasonably practical drying, namely foam-mat drying technique. This study aims to determine the best formulation in making kecombrang flower preservative powder using the foam mat drying method. This study used a randomized block design (RBD). The factors studied included maltodextrin concentration and drying temperature. The concentration of maltodextrin consists of three levels, namely 5%, 10%, and 15%, and the temperature consists of three levels, namely 50°C, 60°C, and 70°C. The variables observed were qualitative and quantitative analyses. The best treatment results qualitatively and quantitatively, namely at the drying temperature treatment of 50°C and 5% maltodextrin concentration with a water content value of 5.92%, antioxidant activity value 61.77%, total phenol levels 2.12 mg TAE / g, total flavonoid levels 0.13 mg TAE/g. The qualitative test shows that kecombrang flower preservative powder contains phenolic compounds, flavonoids, steroids, tannins, saponins, and alkaloids.
A comparison of the effectiveness banana stem sap and virgin coconut oil on diabetic wound healing
Authors: Sari Yunita , Isworo Atyanti , Upoyo Arif Setyo , Sumeru Annas , Kurniawan Dhadhang Wahyu , Sutrisna Eman 
Published: May 2021

AbstractBanana stem sap (BSS) and virgin coconut oil (VCO) is usually used for wound care treatment. However, to date, no study has been conducted to compare the effectiveness of these two therapies. Therefore, this study aimed to compare the effectiveness of BSS and VCO on diabetic wound healing in rats. Male Wistar rats were randomly divided into 3 groups depending on the formulation used on the wound: BSS, VCO, and control-treated with film dressing. The tissue samples were obtained on days 4, and 14. The wound size, the presence of necrotic tissue, level of inflammation, level of fibroblast, and re-epithelialization were assessed. On day 10, wounds in the BSS group were the smallest compared with other groups. The necrotic tissue and level of inflammation in the BSS group were also less as compared with other groups. The re-epithelialization in BSS group was also the most advance compared with other groups. Our study showed that the ability of BSS in accelerating wound healing is better than VCO and film dressing. We recommend nurses and clinician in Indonesia to use BSS to treat diabetic ulcer.
Diversity of Introduced Species of Fishes in Penjalin Reservoir Central Java Indonesia
Authors: Setyaningrum N , Sugiharto  , Susatyo P 
Published: May 2021

Abstract
The decreased diversity of fish is partly due to the introduction of fish or foreign species into the waters. The impact of this entry is relatively vast, not only damaging the environment and genetic but also disturbing the indigenous species and spreading disease and parasites to the fish. This study aimed to analyze the fish diversity of introduced species and indigenous species captured in Penjalin Reservoir and the correlation between biodiversity and water quality. The method included a survey with five Stations of sampling. The present study caught 539 fish, consisted of seven families, ten breeds, and 11 species (six introduced and five indigenous). The diversity of introduced species was higher than that of the indigenous. The captured introduced fish were Oreochromis niloticus, Oreochromis sp, Oxyeletris marmorata, Clarias gariepinus, Cyprinus carpio, and Poecilia reticulata. The similarity index of fish diversity was almost equal across Stations. The O. marmorata species had the highest relative abundance and dominated Penjalin Reservoir. The diversity of introduced species was positively correlated with the parameters of depth, pH, and free CO2 in the center of the reservoir, while the Total Suspended Solid (TSS) of the indigenous species was in the inlet of the Garung river. The significance of the present research is to promote the conservation of fish resources and to maintain a balanced ecosystem, especially the existence of introduced species and indigenous species in the waters of Penjalin Reservoir.
Composition and diversity of macroalgae community in the coast of Karang Bolong, Nusakambangan Island
Authors: Widyartini Dwi Sunu , Hernayanti  , Edy Prabowo Romanus 
Published: May 2021

Abstract
Karang Bolong Beach is a beach located at the eastern tip of the island of Nusakambangan Cilacap. Karang Bolong Beach has a substrate type in the coral and composite substrate (fragment coral, rock, and sand). Therefore, a lot of seaweed grows there. This research aims to determine the macroalgae community on different substrates at Karang Bolong Beach, Cilacap. This is done to explore and use seaweed as a source of bioethanol. The research method used was a survey method - sampling using transects with a random process. The research variables included the macroalgae community in terms of species diversity and abundance on different substrates. The main parameters observed were the number of species and the number of individuals for each species. Supporting parameters consist of current velocity, nitrate content, turbidity, depth, tides, salinity, temperature, and pH. The data obtained were analyzed using Primer-7 to determine the diversity and density of each macroalgae species. The results showed 11 species of macroalgae consisting of Amnasia glomerata, Caulerpa mexiana, Chaetomorpha crasa, Dictyota ciliolata, Eucheuma serna, Gracilaria arcuata. Gracilaria gigas, Laurencia subopposita, Padina australis, Rhodymenia sp., and Ulva rigida. On the coral substrate, there were eight species, and on the composite substrate, six species. Four of these species are found in both substrate types. The diversity of species on the coral substrate varies from low to moderate. The highest abundance on composite substrates dominated by Padina australis biomass with a weight of 431 g.m−2. On coral substrate dominated by Gracilaria gigas with a value of 275.33 g.m−2. The community is in an unstable condition due to ecological pressures.
Screening of microfungi from spent mushroom for decolorizing and removing heavy metals from batik effluent and its toxicity
Authors: Dewi Ratna Stia , Hana  
Published: May 2021

Abstract
The concentrated colors and heavy metals contained in batik waste. Therefore, decolorization and removal of heavy metals is required. The purpose of this study was to screening microfungi for decolorizing and removing heavy metals from batik effluent, and obtaining information about the toxicity of the treatment results. Obtained 3 genera isolated from spent mushrooms, namely Penicillium sp., Aspergillus sp., Trichoderma sp. The superior microfungi for decolorizing and removing heavy metals from batik effluent is Penicillium sp., and its isolate can reduce the toxicity after the treatment results.
Investigation of total organic matter [TOM] content during high and low water in inter-tidal zone sediment at Teluk Penyu Coast, Cilacap, Indonesia
Authors: Haryono F E D , Illahi Z Y , Dewi R 
Published: May 2021

Abstract
Sediment is composed of organic and inorganic particles. Accumulation of organic particles in the sediments is known as organic matter. The present of sediment in the tidal zone and the existence of organic matter accumulation in sediment is influenced by oceanographic pattern. Tide is an important influence as transporting the sediments in the coastal waters, the tides can generate currents that move a mass of water and carry suspended solid material, and become as one of the factors that play a role of organic matter transfer, both to sediment transport and sediment deposition. The purpose of this study is to determine the content and differences of Total Organic Matter [TOM] in sediments during high and low water in a tidal area at Teluk Penyu Cilacap, Indonesia. The LOI (Loss On Ignition) method is carried out to analyze the content of [TOM] in the sediment. The average content of [TOM] in 100 g of sediment during high water was obtained 3.72% and 5.86% when low water. Statistically, tidal patterns at the time of the study were not cause to the difference of the TOM content [p<0.05]. Existence of organic matter in tidal zone sediment plays and important role as a food source for bacterial decomposing organism.
Energy Efficiency Calculation and Air Handling Unit Design Based on Cooling Load Capacity at MASTEK Mosque
Authors: Harsito Catur , Satiya Permana Ariyo Nurachman , Sihta Finda 
Published: May 2021

Abstract
The rate of development growth in Indonesia has resulted in an increase of energy demand. In addition, most power generation systems still use fossil fuels of nearly 50%, in other words this fuel can run out within the next 18 years. The electricity needs in the building come from the use of lighting, computers, office equipment, heating, ventilation, air conditioning and also air conditioning systems (AHU). This paper aims to investigate energy efficiency based on cooling load capacity to reduce energy use and design an air conditioning system. A well-designed HVAC system will have a great impact on indoor air conditions. Room comfortability will be realized throughout the year and also the outside environment if cared for properly according to the procedures of the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) Handbook of Fundamentals. Mastek Mosque required 167,151,241 Btu/h. The ducting design for central air conditioning systems uses 12 x 8 pipes for the main ducting and 10 x 6 for the ducting suction with 12 nozzles and 10 x 6 and 10 x 8 return ducting sizes. This system has the advantages of efficient, silent cooling and increased comfort for prayer.
Forecasting the amount of rainfall in West Kalimantan using Generalized Space-time Autoregressive model
Authors: Utami R , Nurhayati N , Maryani S 
Published: May 2021

Abstract
The generalized space-time autoregressive or GSTAR is a space-time model which can be used to analyze time-series data in several locations considered to be correlated. In this research, the GSTAR model is applied to forecast the amount of rainfall in West Kalimantan, especially at Sintang Station, Melawi Station, and Ketapang Station. The data used for modeling is data of the amount of rainfall for the period January 2013-December 2017, while the data used for model validation is data for the period January 2018-December 2018. The spatial weights used are uniform weights, inverse distance weights, and normalized cross-correlation weights, and the estimation method used is the ordinary least square or OLS estimation. The best model is selected based on the smallest RMSE (root mean square error). The results showed that all spatial weights gave the same good GSTAR(1:1) model because they had almost the same RMSE value. Thus, this model can be used to forecast the amount of rainfall for the period January 2019-December 2019. The forecast results show that for Sintang Station and Melawi Station, the highest amount of rainfall is estimated to occur in March 2019 and the lowest will occur in August 2019. Meanwhile, for Ketapang Station, the highest amount of rainfall is estimated to occur in January 2019 and the lowest will occur in September 2019.
Implementation of autoregressive integrated moving average model to predict total electron content from GPS satellite receiver in Bandung
Authors: Yuniati Marifatul Nur , Sugandha Agus 
Published: May 2021

Abstract
Total electron content (TEC) or free-electron content that is in the ionosphere layer can disrupt telecommunication and navigation systems. This study discusses forecasting the daily average value of total electron content (TEC) during March 2019. The method used in this forecast is the autoregressive integrated moving average (ARIMA) model with the Box-Jenkins approach. The research results show that the best ARIMA model is ARIMA (1,1,1)with an MSE 2.453. The results showed that the daily average predicted TEC value increased every day and the maximum TEC value occurred in the 86th period (86thday) which was 18.4991 TECU (1 TECU =1016electrons / m2).
Increased reliability over current relay (ocr) as a transformer protection with non-cascade coordination patterns
Authors: Prasetijo Hari , Fadli Ari , Priswanto  , Herry Purnomo Widhiatmoko 
Published: May 2021

Abstract
Protection using Over Current Relays (OCR) with cascade coordination patterns is commonly used in 20 kV primary distribution networks to protect transformers from phase to phase fault currents. To anticipate a large fault current, the OCR feeder is equipped with an instant time setting. The problem occurs when the OCR feeder or PMT feeder fails to work then the transformer will be at risk because it is burdened with the fault current for a relatively long time. This study will discuss the use of a non-cascade pattern for the coordination of OCR feeders and incoming OCR in a primary distribution system supplied by a 60 MVA transformer, 150/20 kV from the substation by the calculation method. OCR feeders use very inverse (VI) characteristics and OCR inverses use standard inverse (SI) characteristics. A large feeder fault current is obtained by determining the 3 phase fault current upstream of the feeder as 7 x the nominal current (In) of the transformer. The result is that when the PMT feeder fails to work, the incoming OCR cascade coordination pattern will work with a time of 1.05 seconds. Meanwhile, if we use a non-cascade pattern the incoming OCR will work in the time setting of 0.3 seconds. Work time difference of (1.05 - 0.3 = 0.75 s) shows an increase in protection reliability and reduces the risk of damage to the transformer.
Study on measures of preventing and reducing silting of old hydropower stations in high sediment content reservoir area
Authors: Zhou Heng , Zhang Xinguo , Liu Jing , Lu Xi , Sun Haitao , Di Shengjie 
Published: May 2021

Abstract
For water conservancy projects that have been built on rivers with high sediment concentration, the sediment deposition is the primary problem affecting safe operation. Based on a large hydropower station already built on the Yellow River, combined with model test, simulation analysis and other methods, this paper proposes that the effective method to solve the sediment problem is to use the newly built desilting tunnel to arrange the water diversion power generation system, and give the measures to solve the siltation of power generation hole and surge chamber involved in this method. The engineering practice shows that the siltation prevention and reduction measures mentioned in this paper can effectively solve the siltation problem of the old hydropower station in the high sediment content reservoir area.
Research on Diagnosis and Treatment of Abnormal Temperature Fault of Hydro-generator in Hydropower Station
Authors: Yu Yang 
Published: May 2021

Abstract
Electric power as the main energy source in the world today, hydropower is an important part of electric energy in China. As the core equipment of hydroelectric power generation, hydro-generator will inevitably cause fault during operation, and abnormal temperature is one of the main faults. When failure occurs, timely and accurately find out the reasons and take effective solutions can minimize the damage caused by the failure. This article expatiates on the malfunctions and causes of common abnormal temperature of hydro-generator, and proposes measures to distinguish and solve the faults, so as to effectively solve the abnormal temperature problems of hydro-generator and ensure the safe and stable operation.