bluuebunny/crossref_metadata_2025_split huggingface dataset:
Production of Environmentally Bioplastics As Packaging Materials For Teaching Factory Products at State Polytechnic of Jember
Authors: Wibisono Y , Santoso A , Bachri S 
Published: April 2023

Abstract
Plastic waste ranks second in the environmental pollution in 35 major cities in Indonesia. Currently, one of the policies that are the main focus of research is green technology (go green) and green economy, with an emphasis on low carbon accompanied by indicators of pollution reduction as the performance target of activities. Following up on this policy, research was conducted to replace plastics with bioplastics using the main raw material of rice straw which had been dignified with 30% ethanol for 2 hours at 75°C which was then added with glycerol, CMC, and chitosan with certain formulations as well as a fermentation process using L. plantarum. The determination of product characterization is using SEM, XRD Spectra, tensile test, and biodegradation. The research results will be used as packaging material for Polije’ s teaching factory products. Preliminary research results indicate that the greater the concentration of chitosan used, the smaller the swelling percentage and can inhibit bioplastic damage, but the resulting product becomes stiff. Products made with formulations determined based on observations using SEM can produce a fairly even morphology of bioplastics with a starch:cellulose ratio of 1:1.5 resulting in a tensile test of 3.47 Mpa and a strain of 4.8%. The product has been tested to be degraded by 95% within 11 days. Products made with formulations determined based on observations using SEM can produce a fairly even morphology of bioplastics with a starch:cellulose ratio of 1:1.5 resulting in a tensile test of 3.47 Mpa and a strain of 4.8%. The product has been tested to be degraded by 95% within 11 days. Products made with formulations determined based on observations using SEM can produce a fairly even morphology of bioplastics with a starch:cellulose ratio of 1:1.5 resulting in a tensile test of 3.47 Mpa and a strain of 4.8%. The product has been tested to be degraded by 95% within 11 days.
The effect of different types of starter on VCO (virgin coconut oil) yield and quality
Authors: Raudya H A , Putra S , Rusli  , Heryana N 
Published: April 2023

AbstractCoconut flesh can be processed into Virgin Coconut Oil (VCO). Making VCO is done by fermentation using yeast as a starter for breaking the coconut milk/cream emulsion. This study aims to determine the right type of starter to produce VCO with the best yield and quality. The research was conducted from October to November 2021 at the Balittri Integrated Laboratory, Parungkuda District, Sukabumi Regency. The study used a completely randomized design consisting of 4 treatments, repeated 4 times. The types of treatment were tempeh yeast, baker’s yeast, tape yeast, and without yeast. The results showed that each type of starter had a different effect on the yield and organoleptic characteristics of the resulting VCO. Tempeh yeast produced the highest product (33.2%) and the most minuscule yield used tape yeast (24.4%). The results of the organoleptic test showed that the best VCO was produced using tape yeast.
Quality assessment of high calcium Catfish (Clarias sp.) bone flour made by boiling and drying methods
Authors: Ratri P R , Jannah M , Sabran  
Published: April 2023

Abstract
Catfish (Clarias sp.) is a type of fish that is widely cultivated and consumed by community, especially in Indonesia. However, catfish bone has not been used optimally even though its nutritional content is quite high. The production of catfish bone flour can be an alternative source of functional food. This study aims to utilize catfish bone waste as high calcium flour and analyze its nutritional contents. This study consists of two steps, namely flour production and nutritional analysis. Catfish were prepared by eviscerating the internal organ and washing until clean. Then it were dipped into boiling water for 30 minutes at 100°C and separated bone from other parts. The boiled catfish bones were dried at 150°C for 1 hour using oven and ground into flour using blender. The raw flour was then sifted by sieve 60-80 mesh. Proximate analysis results showed that catfish bone flour contained 8.2985% fat, 2.1883% protein, 0.0096% zinc, 0.0028% iron, 10.73% water, 49.9346% ash, and 8.4059% calcium. Calcium content in catfish flour is 8405,9 mg/100g (>380 mg/100 g), therefore it is permitted to “high calcium” claim. Due to its nutritional content, catfish bone flour can be used as a raw material of functional food.
Customer preference in food vendor during the COVID-19 pandemic: a case study of university student
Authors: Widyaningrum D , Muhammad A A 
Published: April 2023

Abstract
The canteen is the public place that sells and serves foods and drinks to the consumer. The study aimed to determine the attributes considered important for the consumer to select the food vendor during the COVID-19 pandemic at the BINUS University, Alam Sutera Campus canteen. The study was conducted by using conjoint analysis in which respondents were Bina Nusantara University students (n = 100) who had visited and consumed food in the canteen of BINUS University, Alam Sutera Campus. The results showed that the COVID-19 pandemic changed the crucial attributes for the consumer to select the food vendor. Nowadays, the attributes with the highest to the lowest importance values are personal hygiene, environmental sanitation, price, and food freshness. Therefore, the respondent will consider buying food from food vendors that promote their staff’s hygiene, such as wearing masks, gloves, head covering, and washing hands. Besides, the respondents preferred the food vendor with a clean display window, within the price of 20.000 – 25.000 IDR, and freshly-cooked food.
Identification Of Pathogenic Bacteria In Fermented Bekamal Using B14A Isolate
Authors: Prastujati AU , Amaniyah M , Priyadi DA , Arief II , Fernadi G 
Published: April 2023

Abstract
The content of protein and nutrients in beef makes microorganisms able to live and breed well, it is easy for pathogenic microorganisms to grow and make beef quickly damaged, so processing technology is needed to extend the shelf life such as fermentation techniques. Bekamal is a fermented beef product from the Banyuwangi district. Bacteria in the bekamal fermentation process are lactic acid bacteria. B14A isolate is assumed as lactic acid bacteria that isolated from bekamal which will be used as a starter for meat fermentation in this study. The purpose of this study is to determine the content of pathogenic microorganisms in fermented bekamal meat using B14A isolate. The samples used in this study were fresh beef and bekamal which was fermented by B14A isolate in 0, 7, 14, and 21 days and the commercial one for 1 month, 2 months, and 3 months. Parameters analyzed include the content of Escherichia coli, Staphylococcus aureus, and Salmonella sp. The method in this study was tested using Qualitative Descriptive Analysis with 8 samples and each consisting of 3 replications. The results showed that all samples of fresh beef were contaminated with three types of pathogens and all samples of bekamal were negative for all three types of pathogens.
Knowledge of Subang salted fish sellers and prevention strategies for formalin abuse in salted fish
Authors: Indriati Ashri , Mayasti Nur Kartika Indah , Susanti Novita Dwi , Putri Devry Pramesti , Yulianti Lista Eka , Anggara Cahya Edi Wahyu , Rahmawati Laila , Nora Liza 
Published: April 2023

AbstractFish is a perishable commodity. Producers can process fish into salted fish to make it more durable, but producers still add harmful food additives to increase the product’s shelf life. The government prohibits the use of formalin as a food additive. This study aimed to identify salted fish traders’ knowledge of formalin abuse and obtain a strategy to minimize formalin abuse in salted fish. The research method was carried out by giving questionnaires, interviews and using the Strategic Assumption Surfacing and Testing (SAST) method. The results showed that the seller’s knowledge was still low regarding the salted fish products sold, food additives, food product preservation, the lack of socialization about food safety, and the characteristics of formalin products. The chosen strategy is based on the level of importance and the level of certainty to minimize the misuse of formalin, namely socialization to sellers and buyers regarding formalin, the dangers and how to use it and the manufacture of portable detection kits/tools that are easy to use and accurate results.
Local food management for poor families’ food security based on the structure of the affected communities in rural areas
Authors: Muksin  , Perwiraningrum D A , Amareta D I , Firdaus M I , Purwoko D 
Published: April 2023

Abstract
Food diversity is a resource that can be utilized to improve people’s food security. Jember Regency has a variety of local food that have not been adequately utilized. The purpose of the study analysis how rural local food management can be utilized to meet the food needs of poor families. The study also determined that the mainly affected community groups in rural areas if local food development programs were implemented. The research activities combines quantitative and qualitative approaches. At the beginning he study, it determined the diversity and potential of local food, people’s perceptions of local food management. Furthermore, through a focus group discussion, it was studied how to manage local food. Advanced analysis of Interpretive Structural Modelling (ISM) to assess affected groups in local food development programs. The results study show that local food management for poor families is carried out through increased understanding of the types, characteristics, and nutritional content. The effort should be made to educate local food preferences other than rice, and involve community institutions. In addition, the affected community groups that can facilitate the development of local food programs are mothers and children, heads of households, and social institutions.
Evaluation of irrigation network performance at the anjir serapat lowland irrigation area central kalimantan
Authors: Revina S , Istiarto  , Pratiwi E P A 
Published: April 2023

Abstract
The Anjir Serapat lowland Irrigation Area in Central Kalimantan is an agricultural area that supports the Food Estate program. Irrigation water comes from rainwater. The existing irrigation network cannot remove excess water during the rainy season, causing inundation in low-lying areas. Stagnant water causes the pH of the water to drop so that it becomes acidic. Acid inhibits the absorption of nutrients, interfering with rice plants’ growth. This study aims to evaluate the performance of irrigation networks in removing excess rainwater. Performance evaluation was carried out with the help of flow simulation using HEC-RAS. The simulation was carried out with three scenarios, namely scenarios with existing geometric conditions, channel normalization scenarios, and normalization scenarios, along with the addition of sluice gates. The normalization scenario and the addition of the sluice gate were more effective in reducing the area of flooded land by more than 20 cm to 158.71 hectares, with a reduction of 48.27% from the existing scenario. For land with lower contours, where not all inundation can be discharged into the channel, it is necessary to add a pump. Further studies are needed to see the effect of adding pumps on the reduction of inundation in the field.
Control system for temperature, humidity, and ammonia levels in laying hens farms based on internet of things
Authors: Perdanasari L , Etikasari B , Rukmi D L 
Published: April 2023

Abstract
Best coops in laying hens farm affects health of chickens based on conditions of temperature, humidity and ammonia levels in specific standard. Temperatures and humidity that are low or high causes chickens stressed like biological and hormonal changes that affect chicken behavior, disruption function of the respiratory and cardiac organs due to high ammonia, so egg productivity decreases and detrimental to farmers. The purpose research developed system for controlling temperature, humidity, and ammonia levels by real time to reduce the risk of decreasing chicken health. Internet of things-based control system was developed using a Raspberry Pi 4, DHT22 sensor to get temperature and humidity and MQ137 sensor to get ammonia gas levels. This sensor measurement data is real time which provides outputs form of heating, cooling, and spraying probiotics that reduce ammonia levels automatically so make farmers easy to handling of coops conditions. The test results for 16 days showed that temperature sensor was able to measure in the range of 26,9–38,7°C, humidity sensor was able to measure in the range of 32,7–72,5% and ammonia sensor was able to measure in the range of 0,08-3,82 ppm consistently every hour without any drastic changes in measurement results and suddenly.
Agro-industrial revitalization policy of cane sugar in jember regency
Authors: Hidayat T , Kurniawati D , Widyatami L E , Galushasti A 
Published: April 2023

Abstract
Sugar is one of the essential basic needs. Sugar self-sufficiency that is expected to be achieved is faced with various challenges in terms of on-farm, off-farm, management, and involving players in the review industry. The development level of strength and readiness for sugar self-sufficiency and competition in the current industry, As well as efforts to overcome these problems, can be carried out in research in the form of agro-industrial revitalization policies for cane sugar in the Jember Regency area. Limitation of this scope, a system approach is needed to build a model that can represent the sugar industry system in East Java, specifically in the Jember Regency area with existing dynamics, to increase the sugar production and income of sugarcane farmers in the Jember Regency. The population in this study is a sugar factory that is still operating. The sample size is determined by the existing conditions: two sugar factories in the Jember Regency area, namely SF Semboro and SF. Jatiroto. The built model is hoped to be simulated to produce appropriate policy recommendations.
The existence of bamboo plants and bamboo shoots business in Central Java, Indonesia
Authors: Fauziyah E , Widyaningsih T S , Hani A , Kuswantoro D P 
Published: April 2023

AbstractThe existence of bamboo planting in Central Java is related to the development of the shoots business. This study examines the existence of bamboo planting and shoots production and its driving factors. The research was conducted in the chosen villages of two district, Wonosobo and Demak for collecting information about shoots production, and in Semarang City which used shoots for culinary. Data were collected in 2017 (updated in 2021) through field observation, literature study, and discussions with village officials, farmer groups, shoots business actors, and loenpia business actors as many as 23 persons. The data were analyzed and presented descriptively. The results showed that most of the farmers in Timbang and Banyumeneng Villages planted bamboo as a heritage plant. They planted ampel bamboo (Bambusa vulgaris), green varieties in Timbang, and yellow varieties in Banyumeneng. Previously bamboo is cultivated for conservation and then for shoots production. The existence of bamboo businesses in Timbang and Banyumeneng Villages are influenced by the market demand for shoots, the development of processed food, the increase of loenpia Semarang culinary actors, the existence of bamboo markets, and the involvement of nonmarket institutions such as government institution, educational institution, woman, and youth organizations.
Modelling coffee yield in Dak Lak province using machine learning algorithms
Authors: Yen Bien Phan Hong , Khoi Dao Nguyen 
Published: April 2023

Abstract
Application of machine learning algorithms in simulating crop yield has attracted more attention from plenty of scientists in recent years. The objective of this study is to estimate the coffee yields in Dak Lak province by using three machine learning algorithms, namely, artificial neural network (ANN), support vector regression (SVR), and random forest (RF), respectively. Input data in simulating processes includes maximum and minimum temperature, effective rainfall, reference evapotranspiration, and crop water requirement in the period 2000-2020. In which, the percentage of data in the training and testing phases is 70% and 30%, respectively. The results indicated that three machine learning models (i.e., SVR, ANN, and RF) have reasonable performance in simulating the coffee yield, out of which, the RF model performs best with NSE values of approximately 0.918 for the training phase and 0.818 for the testing phase.
Analysis of changes of impervious surface area in Ho Chi Minh City and Ba Ria - Vung Tau province
Authors: Truong T K N , Pham T M T , Dang N B P , Lam N D , Pham K Q , Nguyen Au Hai 
Published: April 2023

Abstract
Rapid urban growth causes the increase of impervious surface which was converted from vegetation land. This affects the rate of water penetration into soils, the rise of surface runoff, and the lowering of groundwater levels. The expansion of the impervious surface gives rise to a series of changes in the physical environment, affecting the quality of life of people due to a change in the thermal energy balance. Therefore, the purpose of this study is to analyse of changes of impervious surface area Ho Chi Minh City and Ba Ria - Vung Tau province which is the marine national economic hub in the period of 2009-2020 by using Landsat satellite image data. The main methods used are NDWI, PISI indices and ISODATA algorithm. The results show that the area of impervious surface area of Ho Chi Minh City is very high with 18.5% in 2009 and 35% increasing rate from 2009-2020. There are 75% districts in Ho Chi Minh city having over 50% impervious surface area. Ba Ria-Vung Tau has lower impervious surface area with 5.8% in 2009 but having the incredible increasing rate– over 100%.
Analyzing the Urban Heat Island in Ho Chi Minh City in Relation to Urban Planning Processes from 2010 to 2020
Authors: Nguyen T P C 
Published: April 2023

Abstract
This study aims to analyze the variation of land surface temperature (LST) and its effect on the urban heat island (UHI) in relation to the urban planning processes of Ho Chi Minh City (HCMC) from the years 2010 to 2020. These changes have impacted the urban environmental conditions and the city development. The study used the time series of Landsat 5 TM and Landsat 8 OLI acquired for the years 2010, 2015, and 2020, and used the algorithms for calculating the land surface temperature (LST), the normalized difference vegetation index (NDVI) and the normalized difference built-up index (NDBI) to investigate the relationships between these phenomena in the city planning processes. The results highlight the increase in land surface temperature was related to the dense of impervious surface area and the decrease of vegetation area. The UHI zones occurred in the areas with high LST and NDBI values, and low NDVI values (concentrated in the central districts and the planned areas) compared to the surrounding areas with lower LST and NDBI and higher NDVI. The recommend planning solutions for the new urban development areas should focus on increasing the amount green areas to combat the UHI phenomenon and environmental problems against the development.
Application of Multi-Temporal Landsat Images to Analyze the Relationship Between the Land Surface Temperature (LST) and the Land Use Land Cover (LULC) in Ho Chi Minh City
Authors: Ha T C , Nguyen T P C 
Published: April 2023

Abstract
Urban sprawl has changed the land use land cover (LULC) in Ho Chi Minh City (HCMC). It has caused the gradual decline of the natural vegetation and rapid increase of the impervious surface, which leads to the heat storage capacity of the urban surface being on the rise. There is a land surface temperature (LST) difference between the urban center and surrounding areas and it creates the urban heat island phenomenon (UHI). This study used Landsat 4, 5, and Landsat 8 satellite image data from 1990 to 2020 with the GIS algorithms on ENVI and ArcGIS to analyze and estimate the correlation between the LULC and the LST in HCMC. The Kappa coefficients of the LULC classifications were all over 0.8 in 1990 – 2020 period. The total area of impervious surface has increased by 57,338 hectares over the past 30 years; while the total area of natural green has decreased by 19,116 hectares. The LST has remarkably increased in the areas of construction lands, industrial zones, and impervious surfaces, with an average increase from 22°C to 27°C. While the LST in the others such as the vegetation surface and water surface were slower, from 20°C to 23°C. The solution of enhancing the urban green space was suggested to mitigate the increasing LST impact on HCMC.
Building map of biodiversity status in Tien Giang Province, Viet Nam
Authors: Nguyen-Thuy-Lan Chi , Dang-Thi-Cam Tu , Pham-Anh Duc , Nguyen-Truong Ngan 
Published: April 2023

Abstract
One of the five key tasks of the National Strategy on Biodiversity to 2030 is “Investigating, inventorying, evaluating and building a national database on biodiversity”. Maps and geographic information systems are two indispensable tools for this task. The objective of this study was to build the map of biodiversity status, focusing on the level of species diversity for Tien Giang province. The input data derived from the results of the available biodiversity statistics combined with additional investigation from the research project of ĐTNN 07/2020. The map layers were compiled from data sources, including (i) secondary data: map of topography, map of land-use status, map of land types, map of sea level rise and flood risk, map of saline intrusion boundary, biodiversity data; and (ii) primary data: survey data on biodiversity and threats. All maps created in this study met the technical process of setting up environment maps in Vietnam (Circular No. 17/2011/TT-BTNMT). This paper has completed 05 thematic maps with a scale of 1:100,000 including: Map of environment for biodiversity conservation; Ecosystem map; Map of species richness, Map of biodiversity conservation status, and Map of threats to biodiversity. This study will help local managers and scientists in managing and looking up detailed information on biodiversity conservation in Tien Giang province more accurately and effectively.