bluuebunny/crossref_metadata_2025_split huggingface dataset:
Farmer’s response to high yielding rice varieties in South Sulawesi (case study of Takalar)
Authors: Muslimin  , Halil Warda , Dewayani Wanti 
Published: June 2020

Abstract
The use of high yielding rice varieties is one of the determinants in the success of rice cultivation. Through the use of high yielding rice varieties and appropriate cultivation techniques, it is expected to increase national rice production. The government has made various efforts to develop new s high yielding rice varieties of rice. One thing that has been done is to increase farmers’ knowledge and understanding of various new high yielding rice varieties through the Field School. This activity is carried out to support the acceleration of the adoption of new high yielding rice of technological innovations at the farm level. The assessment was carried out in 2018, in Cakura District, Polongbangkeng Selatan District, Takalar Regency using a survey method with direct interviews using a structured questionnaire. Sampling was done intentionally (purposive). The number of respondents 25 people consisting of implementing farmers and officers in the field. The data obtained is the response data of farmers to some high yielding rice varieties, the data were analyzed using the chi-square test using SPSS Non parametric. The study results show that, in general, farmers like high yielding rice varieties of inpari 4, inpari 41 and inpari 42 with an average production of 5-7 t / ha, compared with local rice production using local varieties on average 3-5 t / ha. The highest variety and preferred by farmers are inpari 4. Inpari 4, Inpari 41 and Inpari 42 have an R / C ratio: 1, 28; 1.16 and 1.16 so that the use of these three varieties in rice business in Takalar Regency is feasible to be cultivated.
Economic analysis of captivity maize hybrid supporting food self-sufficiency in South Sulawesi
Authors: Sarintang  , Muslimin  , Faisal Suddin Andi 
Published: June 2020

Abstract
Strategies adopted in the effort to achieve food self-sufficiency is through the provision of quality seeds of new high-yielding varieties in accordance with farmers’ preferences. The availability of quality seeds in sufficient quantities, on time and easily obtained by farmers plays an important role. Farmers often experience significant losses, both in terms of cost and time, due to the use of low quality seeds. Therefore, although plant growth and production is greatly influenced by climatic conditions and farming practices, it is important to remember the importance of quality selection seeds to be used. Propagation of corn starts from the provision of seed types 1) Breeder Seed (BS) 2) Foundation seed (FS), 3) Stock seed (SS) dan 4) Extension seed (ES). Continuity of the seed multiplication plot is very influential on the availability of seed sources in accordance with needs seed producers / breeders and determine the process of seed dispersal production. The smooth flow of seed propagation also greatly determines the speed of spread of new high yielding varieties. In a financial analysis study on corn breeding farming that has been carried out in Bantaeng Regency, South Sulawesi, it shows that farming in one planting season can get a profit of IRD 37.975.000,00. Circumstances where deep farming operation does not make a profit and does not suffer losses if it is able to produce seed as much as 678 kg While the payback period for investment / PBP (Pay Back Period) is 0,95. Therefore, hybrid maize farming is said to be very feasible where each using a cost of IRD. 1, - or one rupiah can get a benefit of IRD. 2,54
Benefits of farmers’ cooperative to rice farming activity: case of Subak’s cooperative in Guama, Tabanan District, Bali province
Authors: Sedana Gede 
Published: June 2020

AbstractFood security is one of the issues in the countries including Indonesia. The increased productivity should be taken by farmers through the application of technologies recommended. Technologies practices could be managed under the farmers’ cooperative, such assubak’scooperative in Bali. The purpose of the study is to describe the farmers’ participation in supporting cooperative activities. Cooperative could be a fundamental tool or a pillar of agricultural development to attain food security at farmer level. Farmers as members of cooperative have high participation in supporting cooperative to make products or business activities.Subak’scooperative of Guama could respond to the market demand for production (certified seed) and the needs of farmers on agricultural inputs. Farmers get benefit from the business activity of cooperative in the forms of inputs supply (fertilizer, pesticide, etc.), credit or loan provision; and collective marketing. Cooperative has been successful in providing a profit share to members aside from support the food security through the increased productivity.
Effect of delayed cob drying on maize (Zea mays L.) seed vigor
Authors: Koes Fauziah , Arief Ramlah 
Published: June 2020

Abstract
Maize seed vigor was affected by its processing stage. The process must be continue from one stage to another. Delayed one stage in seed processing will affect its vigor. The research aims to study effect of delayed cob drying to maize seed vigor. The research was carried out in Bajeng Experimental Farm and seed laboratory of Indonesian Cereal Research Institute, from February 2018 until April 2019. Bisma and Provit A1 of OPV was used and after harvest, the unhusk cob were store in the processing warehouse and treated by, 0 (immediately drying), 8, 12, 16, 20, 24 days delayed drying. After drying, seeds were store in the room temperature (26-32°C) for one year with observation period every two months. The treatments were arranged using completely randomized design with three factors; varieties, duration of delayed cob drying, and duration of seeds store. Observation were recorded data of seed moisture content, germination, germination rate dry weight, root and shoot length, root and shoot dry weight, electrical conductivity of seed soaking water. The results showed that delayed cob drying significantly affect its seed moisture content, germination percentage, germination rate, root length, shoot length, electrical conductivity of seed soaking water. Delayed cob drying until 24 days were significantly decrease its seed moisture content by 17.5% on Bisma and decreased 17.6% on Provit A1. Delayed cob drying until 12 days could maintain high vigor seeds in term of conductivity leakage value which lower than 25 μS cm−1g−1.
Total phenolic content, antioxidant activity and tyrosinase inhibitor from marine red algae extract collected from Kupang, East Nusa Tenggara
Authors: Nursid M , Khatulistiani T S , Noviendri D , Hapsari F , Hardiyati T 
Published: June 2020

Abstract
Many commercialized synthetic antioxidants are used under strict regulations in certain countries because of their potential health hazards. Thus, the search for alternative antioxidants from natural products Indonesia is needed, and one of the potential material is from seaweed extract. Red seaweed is very potential to be developed as a raw material for medicines and cosmetics because it has antioxidant activity, which from its phenolic compound that can remove the free radicals and can inhibit tyrosinase enzyme activity. The purpose of this research is to know the species of red seaweed in the East Nusa Tenggara sea, its total phenolic content, antioxidant activity, and also inhibitory activity of tyrosinase in red seaweed. conduct the research. Parameters that measured are the number of total phenolic compounds, IC50 that obtain from the DPPH test, and inhibition percentage of Tyrosinase. The result shows that there are ten species of red algae in Kupang, East Nusa Tenggara, and it consists of 4 genera. Some of that red seaweed species are potential as antioxidant and tyrosinase inhibitors source. The result from total phenolic content analysis show the species that have highest total phenolic content is Laurencia sp. (24.97 mg GAE.g-1), the antioxidant activity test show the species that have highest antioxidant activity is Gelidium latifolium (46.68%), and the species that have the highest percentage inhibition of tyrosinase enzyme is Gracillaria foliifera (25.21%). Moreover, the research also shows a strong correlation between the total phenolic content of the seaweed extract with antioxidant activity.

A post-publication change was made to this article on 18 Jun 2020 to correct the title and an author name.
Species composition of puerulus spiny lobsters from the South Sea of Banyuwangi, East Java, Indonesia
Authors: Setyanto A , Kamila F N , Soemarno  , Wiadnya DGR , Prayogo C 
Published: June 2020

Abstract
Species diversity is prevalent throughout Indonesia’s Coral Triangle areas. A fisheries management area has been set over its archipelagic waters ensuring the sustainability of the resources. Six species spiny lobster of Panulirus are known to live in Indonesia archipelagic waters. They have a significant contribution to the country. A study on the distribution variation of the marine organisms through the life phase in space and time is critical information for its management. Therefore, a similar study was conducted for the lobster population along the South Sea of Java of Eastern Indian Ocean. The purpose of this activity was to develop formulations to protect ecosystems and conserve lobster resources. Distribution of pueruli larvae of spiny lobster of Panulirus species was surveyed in Banyuwangi, East Java from February to March 2019. The number of pueruli larvae caught were counted and compared among the species. Data analysis was executed using the ANOVA test. There were four species of lobsters found. Dominant species were Panulirus homarus (Scalloped spiny lobster), P. pennicillatus (Pronghorn spiny lobster), P. versicolor (Painted spiny lobster) and P. ornatus (Ornate spiny lobster). Life history distribution of the species may support connectivity hypotheses of the lobster population in the region.
Detection of gelatin in ice cream using QCM sensor
Authors: Muharramah A , Permata L M , Juwono H , Sugiarso R D , Kurniawan F 
Published: June 2020

Abstract
Gelatin in ice cream samples has been successfully identified using Quartz Crystal Microbalance (QCM) sensors. The sensor was prepared by polyaniline and nickel nanoparticles modification. The modification was deposited on the surface of QCM gold electrode using layer by layer (LbL) method. Performance of the sensor was investigated for gelatin determination in the homemade ice cream samples. The homemade ice cream was made with and without porcine or bovine gelatins addition. The experiments were performed in various concentration of the ice cream (100, 200, 300, 400, and 500 ppm) at pH 9. The measurement was compared to the standard of porcine and bovine gelatins. The results showed that the sensor can be identified gelatin in ice cream samples. Frequency shift of ice cream that contained porcine gelatin was appeared as positive value, whereas a negative shift value was occurred for ice cream that contained bovine gelatin.
Effect of incubation time and pH on the protein characterization of the aqueous soluble phase of acidified mackerel by-product
Authors: Setijawati D , Aziz Jaziri A , Yufidasari H S , Pratomo M D , Wardani D W , Ersyah D 
Published: June 2020

Abstract
This study aimed to evaluate the protein content from aqueous soluble phase (ASP) of mackerel by-product with a variation of time and pH. Mackerel by-product was hydrolyzed by different incubation time (0, 15, 30, and 45 h) and pH (3.2, 4.2, 5.2, and 6.2) to produce ASP. The study conducted on a completely randomized design (CRD) followed by the Tukey test. The different incubation times and pH showed a significant effect (P<0.05) on yield, crude protein, and soluble protein of ASP. The pH and yield values of ASP in the range of 4.1 to 6.3 and 11.16% to 30.69%, respectively. The crude protein and soluble protein content ranged from 1.28% to 3.27 %, and 0.98 g/L to 2.1 g/L, respectively. The highest yield and crude protein of ASP was under pH 3.2 for 15 h. The amino acid analysis showed that several amino acids were detected in considerable amounts in the ASP. This study indicated that the ASP of mackerel by-product could be a potential material of fish peptone for bacterial growth media.
Mercury concentrations in Yellowfin tuna (Thunnus albacares) and Indian mackerel (Rastrelliger kanagurta) from Bitung Fish Auction Market, North Sulawesi
Authors: Agustina L M , Sartimbul A , Suratno  
Published: June 2020

Abstract
Mercury is one of the heavy metals which rapidly accumulated into fish muscles. Accumulated mercury in the body of fish came from a polluted environment and their prey. Consuming fish infected with high-concentrated mercury could endanger human health. The purpose of this study was to observe the concentration of mercury in Yellowfin Tuna and Indian Mackerel samples from Bitung Fish Auction Market, North Sulawesi. Samples were divided into two categories, fillet and frozen fillet for Yellowfin Tuna’s samples, fillet and whole fish for Indian Mackerel’s samples. Mercury in samples was analyzed in Toxicology Laboratorium at Research Centre for Oceanography Indonesian Institute of Sciences (RCO-IIS) using Mercury Analyzer model MA-3000. The results showed that mercury concentrations in Yellowfin Tuna’s samples were 67.54 μg/kg and 737.84 μg/kg for fillet and frozen fillet, respectively. Meanwhile, mercury concentrations in Indian Mackerel fillet and whole fish samples were 146.35 μg/kg and 38.35 μg/kg, respectively. The mercury concentrations in the samples complied with SNI 7387-2009 and BPOM No. 23 – 2017 mercury standards.
Design innovation of fish cooling system using liquefied petroleum gas fuel
Authors: Kadhafi M , Sunardi  , Nurdiani R , Baidowi A , Wardhana E M 
Published: June 2020

Abstract
Fresh fish is known as one of the highly perishable foods. Losses in the primary fish harbor and seafood production are significant, with discarding rates between 9-15%, and more losses occur during fresh fish distribution. This research was an effort to provide better fresh fish distribution equipment using a refrigerator cooling system with Liquefied Petroleum Gas (LPG) fuel generator as a power source. LPG was chosen because it is more economical and profitable than gasoline. Based on fuel consumption, LPC was40.71% lower than premium gasoline, 62.63% lower than pertamax gasoline, and 64.85% lower than pertamax plus gasoline. The calculation of refrigeration heat load was carried out by applying heat transfer theory. Since the refrigeration heat load obtained was 310 Watt, then the type and capacity of the generator was easily determined.
Properties of high-quality hydrolysate prepared from mudskipper (Periophthalmus freycinetii)
Authors: Nurdiani R , Yulia M R , Prihanto A A 
Published: June 2020

Abstract
Mudskipper (Periophthalmus freycinetii), an amphibious fish, lives in tidal areas and is known for its ability to climb, walk and skip about out of water. It contains high protein and taurine and exhibit unique adaptation to extreme environment. Despite its potential, mudskipper is still underutilized. The aim of this research was to examine the biochemical properties and antioxidant activity of mudskipper hydrolysate. The mudskipper was hydrolyzed using endogenous enzymes under different pH (control, 5, 7, 9) and hydrolysis duration (12 and 24 hours). Hydrolysates were characterized with respect to ash, moisture, fat and protein content as well as the yield and amino acid composition. Antioxidant activity of mudskipper hydrolysate was tested using DPPH. pH 9 and 24h hydrolysis duration gave the highest yields (80.48%), degree of hydrolysis (DH) (37.22%) and protein content (52.63%). High antioxidant activity (56.12%) was also observed. The molecular weight of hydrolysate ranged from 12.55 – 117.73kDa. The hydrolysate contained 35.31% essential amino acid and 63.63% non-essential amino acids which may relate to its functional and bioactive properties. The results suggested that underutilized fish has potency as source of high-quality hydrolysate.
Effect of phosphoric acid concentration on physicochemical properties of Abalistes stellaris skin gelatin
Authors: Jaziri A A , Muyasyaroh H , Firdaus M 
Published: June 2020

Abstract
Due to halal and health issues, the fish by-product (waste) is one of the best sources to substitute land animal gelatin. Abalistes stellaris has a hard texture in skins and known as leather jacket fish species. Moreover, its skins obtained as wastes in smoked fish processing and have not been utilized. Therefore, this study aimed to analyze the physicochemical properties of gelatin extracted from A. stellaris skins at a different phosphoric acid concentration (0.2, 0.4, and 0.6 M). This study conducted by a completely randomized design (CRD) with three replications, followed by Duncan’s post-hoc test. The different pre-treatment of phosphoric acid concentrations showed significant differences (P<0.05) on yield, pH, chemical composition (moisture, protein, fat, and ash), gel strength, gelling, and melting points of A. stellaris skins gelatin. Only the viscosity parameter and an ash content of gelatin did not show a significant effect (P>0.05). The yield of A. stellaris skins gelatin ranged from 9.48% to 10.87%. The protein, moisture, fat, and ash content of skins gelatin ranged 74.55-81.41, 8.62-12.40, 0.43-0.73, and 1,48-1,79 (dry weight basis), respectively. Also, the gel strength and viscosity of skins gelatin were in the range of 1.28 N to 2.45 N and 3.83 cP to 4.21 cP. The amino acid composition of A. stellaris skins gelatin was rich in glycine, proline, alanine, and glutamic acid.
Marketing mix development analysis of preserved tongkol (Euthynnes affinis) on customer satisfaction in Malang, East Java, Indonesia
Authors: Intyas C A , Primyastanto M 
Published: June 2020

Abstract
Knowledge on consumer awareness can offer some marketing recommendations. Various factors of interpretation and expectation can influence the complexity to fulfill daily needs. Consumer behavior in purchasing will reflect their response to product, price, promotion, place, and people. Examining consumer behavior will assist in product development, pricing, distribution, promotion, and improving the quality of market. This research was aimed to investigate: 1) the expectations and perceptions of consumers, 2) the impact of each marketing mix indicator of consumer satisfaction, and 3) the dominant marketing mix variables. The consumer expectations of quality standards of preserved tongkol fish were described based on the color, appearance, shape, temperature, texture, flavor, ripeness, and taste of preserved tongkol. The results showed that marketing mix influenced about 61.4% of customer satisfaction on preserved tongkol fish (Euthynnus sp) in Malang. Partially marketing mix that includes product, promotion, place, and people significantly influenced the consumer satisfaction. The most dominant marketing mix in consumer satisfaction was a product.
Using BIM for Assessing Buildings Life Cycle Impacts
Authors: Alecrim I , Carvalho J P , Bragança L , Mateus R 
Published: June 2020

Abstract
Facing the recent implementation of the Building Information Modelling (BIM) process in the construction industry, several potentialities have not been fully explored yet. Among them, is the integration of BIM in Life Cycle Assessment (LCA) analysis in order to automate the assessment of the potential environmental impacts. To date, despite the existing studies on the subject, there is still a need to define and establish a recommended assessment framework and software tool for LCA purposes when BIM methodology is used. This research analyses the current state of the implementation of the LCA analysis in the BIM process. Additionally, it compares the results from the use of two LCA software. For this purpose, a case study was modelled in the Autodesk Revit BIM platform and exported to two LCA specific BIM tools: Athena Impact Estimator and Tally. The life cycle impact results from both BIM tools, as well as the required workflows, are discussed and compared in order to validate results and identify the advantages and disadvantages of each. The results show that the implementation of the LCA method can be optimized in time and reliability by using the BIM process. Concerning the selected software, Tally has a better interoperability capability, user-friendly interface and a wider range of possible locations for the building. On the other hand, Athena Impact Estimator requires a detailed building characterisation to perform a comprehensive environmental impact assessment and has a broader materials database.
Eco-efficiency Tool for Decreasing Environmental Load in the Life Cycle of Buildings – ÁBACO – Chile
Authors: Muñoz C , Vega M , Rocha A , Cereceda G , Molina A , González P 
Published: June 2020

Abstract
Chile begins to incorporate sustainability principles in its State policies at the sector level, which has created a great opportunity for the building sector, by encouraging improvements in the environmental impact on the integrated management of economic and environmental aspects in the life cycle of buildings. This article shows a comparative analysis in economic, social and environmental parameters between the two most common construction solutions proposed by the Ministry of Housing and Urban Planning in Chile: (a) structural wall of radiata pine and (b) reinforced concrete wall. For this analysis, was used a computer tool named ÁBACO-CHILE, which allows the integration of economic, social and environmental criteria from any building projects budget. ÁBACO-CHILE tool was designed to incorporate, on each budget item, an economic cost, a social cost and environmental parameters of contained energy and carbon footprint, using the first Chilean-site specific environmental Database. The results of the analysis show that the economic, social cost and environmental aspects evaluated are much higher on environmental evaluation in the case of the reinforced concrete construction solution, surpassing almost 70 times the values of the structural wall of radiata pine. Considering these results, it is possible to conclude that ABACO-CHILE is a useful tool to identify environmental impacts in the early design stage of any buildings project and also that this analysis allows an advance incorporation of sustainability criteria in buildings projects in Chile.
Long Live my Objects: Silent Practices to Avoid Obsolescence
Authors: Errázuriz T , Greene R , Berczeller D 
Published: June 2020

Abstract
Today specialists agree on the importance of studying the practices of reuse and reduction or slow consumption in the domestic space. In response to this need, this research seeks to understand the extent to which daily consumption practices influence the life trajectory of objects. Specifically, the project seeks to recognize, analyze and value everyday practices related to the use, care, repair, reuse and storage of objects of daily consumption, which favor conservation and influence the willingness to consume new replacement products. The ethnographic study, uses in-depth interviews, participant observation and use of audiovisual tools to investigate the relationships that a diverse group of people have with their everyday objects. Limiting the study to people who reside in different communes of the city of Santiago.