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Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian

jstsv
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Published by Institut Pertanian Bogor

ISSN : 20888732 EISSN : 27225232 DOI : https://doi.org/10.29244/jstsv

Core Subject : Economy, Health, Science, Agriculture, Social,

Agriculture, Biological Sciences & Forestry Computer Science & IT Economics, Econometrics & Finance Social Sciences Veterinary

Jurnal Sains Terapan (JST) publishes articles in Applied Science, Applied Agriculture, Applied Technology-Information, and Applied Agribusiness issues.

Arjuna Subject : Umum - Umum

Articles 9 Documents

Search results for , issue "Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014" : 9 Documents clear

Daya Saing Komoditas Kentang di Kabupaten Banjarnegara, Jawa Tengah Pendekatan Policy Analysis Matrix (PAM) (The Competitiveness of Potato Commodities in Banjarnegara-Central Java, using Policy Analysis Matrix (PAM)) Doni Sahat Tua Manalu; Suharno Suharno; Netti Tinaprilla
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014
Publisher : IPB University

Agricultural policy in any country causes intended and unintended impact on related sectors. Essentially, introduction of new commodity policy changes incentive structure to participating farmers of the sector. Policy analysis matrix (PAM) provides a framework and tools of analysis regarding the impact of policy change in simple but quantitative measure. This PAM analysis concerned mainly on the potato sector at sample area, Banjarnegara. The aim of this study was to analyze the impact of policies on the competitiveness of potatoes in Banjarnegara district, Central Java. Location of the research conducted in Banjarnegara district, the analysis method that used in this study are qualitative and quantitative analysis. Qualitative method is used to study the location decribe general description while quantitative method is used to analyze the competitiveness of the potato and the impact of government policies that analyzes the Policy Analysis Matrix. The analysis showed that potato farming in Central Java Banjarnegara district competitiveness, however, a policy that protects the price of potato output needs to be done so that the domestic potato can compete with the price of imported potatoes.Keywords : Competitiveness, Potatoes, Policy Analysis Matrix (PAM)

Aplikasi Probiotik, Prebiotik dan Sinbiotik melalui Pakan untuk Meningkatkan Respon Imun dan Kelangsungan Hidup Ikan Nila Oreochromis niloticus yang Diinfeksi Streptococcus agalactiae (Application of Probiotic, Prebiotic and Synbiotic through Feed for Increasing Immune Response and Survival Rate of Nile Tilapia Oreochromis niloticus Infected by Streptococcus agalactiae) Widanarni Widanarni; Achmad Farouq; Munti Yuhana
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014
Publisher : IPB University

In this study, fish feed supplemented by probiotic, prebiotic and synbiotic were applied to enhance the immune response and survival rate of the fish against Streptococcus agalactiae infection. Treatments used in this study, were as follows: feed containing 1% (v/v) of probiotic (C), feed containing 2% (v/v) of prebiotic (D) and feed containing mixed of 1% (v/v) of probiotic + 2% (v/v) of prebiotic (E, defined as synbiotic). Control fish (both positive, A; and negative, B; treatments) were fed by fish feed without containing neither probiotic nor prebiotic. In this study, test fish used monosex (all male) red tilapia with the average of body weight of 13,43±2,97 gram. The fish were fed by supplemented feed within first 30 days pre injection. After that, the treated fish were challenged by 109 CFU/ml of S. agalactiae. Nile tilapia fed by synbiotic (treatment E) had higher immune response (haemoglobin, neutrofil, and phagocyte indices) than control, but were not significantly different than those of treatment C, and D. After challenged test by S. agalactiae, treatment C, D and E resulted significantly higher resistance than that of control. The survival rate of fish fed by supplemented feed containing probiotic (C), prebiotic (D) and synbiotic (E) were 76%, 76% and 80%, respectively; higher than than positive control (50%). The results showed that addition of probiotic, prebiotic and synbiotic in fish feed could increase immune response and survival rate against S. agalactiae.Keywords : tilapia, probiotic, prebiotic, synbiotic, Streptococcus agalactiae

Efektivitas Ekstrak Tepung Testis Sapi dalam Alih Kelamin Ikan Nila, Oreochromis niloticus L. Melalui Teknik Perendaman (The Effectiveness of BTME (Bull Testes Meal Extract) in Sex-Reversal of Tilapia through Immersion Technique) Andri Iskandar; M. Zairin Junior; Harton Arfah
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014
Publisher : IPB University

Synthetic steroids are commonly used to sex-reverse tilapia to produce male tilapia commercially, but gradually feared a negative impact on food security and environmental sustainability. The use of new natural compound is a potential alternative to be explored, one of which is bull testes meal extract (BTME). This study aimed to evaluate the effectiveness of BTME immersion and optimal concentrations for sex-reverse tilapia to produce monosex male tilapia, and its influence on survival and growth of fish. The study consisted of 5 treatments with 3 replications: immersion treatment with BTME concentration of 1 ml l-1 (A), 3 ml l-1 (B), 5 ml l-1 (C), immersion treatment in 17α-methyltestosterone of 500 µg l-1 (K+) and without hormone immersion treatment (K-). Hormone immersion was performed on tilapia larvae aged 4 and 7 days after hatching.The fish were then maintained for 60 days. The parameters observed were: the percentage of male tilapia and intersex tilapia, survival rates, and growth rate of fish. BTME immersion for sex-reverse the tilapia larvae have significant effect on masculinization of tilapia. The highest percentage of male fish was obtained on treatment C (85.56%) and was not significantly different from K (+) (81.11 %). Immersion of tilapia in BTME or 17α-MT did not affect the survival and growth of tilapia fish.Keywords: sex reversal, bull testes meal extract (BTME), tilapia

APLIKASI KITOSAN DENGAN PENAMBAHAN EKSTRAK BAWANG PUTIH SEBAGAI PENGAWET DAN PELAPIS EDIBEL BAKSO SAPI (Chitosan Application with Addition of Garlic Extract as a Preservative and Meatballs Edibel Coating) Hana N. S. Sri Hadi; Nugraha E. Suyatma; Rizal Syarief
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014
Publisher : IPB University

The main objective of this research was to to prolong the shelf life of beef meatball by using chitosan with the addition of garlic extract. Two methods of application, i.e. as preservative agent by mixing chitosan with meatball ingredients and as coating of meatball have been conducted. Prior to application, antimicrobial activities of chitosan and chitosan enriched with garlic extract were assessed by diffusion agar methods. It showed that chitosan solution of 1% (w/v) enriched with garlic extract 2% (v/v) could inhibit Pseudomonas aureginosa and Bacillus cereus.The application of chitosan enriched with garlic extract as preservative agent could extend the shelf-life of meatball only for 12 hours while its application as edible coating could extend the shelf life of beef meatball until 24 hours when stored at room temperature. This result revealed that the application of chitosan with garlic extract as edible coating were more effective in controlling microbiological growth in meatball than as preservative agent. The micrograph obtained by SEM showed that the surfaces of meatball coated with chitosan were more smooth and compact than those of meatball without coatings.Keywords: chitosan, antimicrobial film, preservative, meatball, edible coating

SINTESIS DAN KARAKTERISASI SUPERABSORBEN DARI SELULOSA JERAMI PADI (Superabsorbent Synthesis and Characterization of Rice Straw Cellulose) Wina Yulianti; Farida Laila
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014
Publisher : IPB University

Copolymerization of cellulose from rice straw with acrylic acid and acrylamide produce biopolymer superabsorbent. Cellulose was purified from fat content by extraction with toluene:ethanol (2:1). Hemicelluloses and lignin were removal by using potassium hydroxide 5% and hydrogen peroxide 2% at alkaline pH. Cellulose yield obtained was 21.56%. FTIR spectra of lignin showed a loss of absorption at 1728 cm-1. Copolymerization was carried out at 65 C under nitrogen athmosphere. Initiator and cross linking agent used were potassium peroxodisulfate and N'N-methylene bis acrylamide. Superbasorben resulted from this experiment showed the water swelling capacity after 24 hour for the water, solution of 100 ppm of ammonium chloride, and urea respectively 387,11 g/g ; 193,47 g/g and 400,17 g/g.Keywords : superabsorbent, rice straw, swelling capacity

Pemurnian Gliserol dari Hasil Samping Produksi Biodiesel Minyak Kelapa Sawit (Purification of Glycerol from the By-Product of Palm Oil Biodiesel Production) Fahrizal Hazra; Irfan Septiawan
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014
Publisher : IPB University

The process of making biodiesel made of palm oil produced as a by-product of glycerol with low purity levels, liquids, viscous blackish brown with a very alkaline pH (pH >10). Glycerol is often referred to as crude glycerol. The process of refining glycerol that is by adding phosphoric acid concentration range. The average value of the levels of glycerol from glycerol purification results on the phosphoric acid concentration of 2.5%, 5% and 7.5% (v/v) i.e. 81.2205%, 83.4609% and 80.7595%. Determination of the levels of glycerol results showed samples of glycerol rough after the addition of phosphoric acid with different concentrations of already existing standards. The result analysis of glycerol after purification by the addition of phosphoric acid at concentrations of 5% is most suitable for the process of improving the purity of glycerol.Keywords: crude glycerol, purification, phosphate acid, glycerol content

ANALISIS VALUE CHAIN SYSTEM DAN STRATEGY PEMASARAN RUMPUT LAUT DI KABUPATEN MALUKU TENGGARA (Analyze Value Chain System and Seaweed Marketing Strategy in North East Maluku District) Anna Maria Ngabalin
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014
Publisher : IPB University

Potential land in Southeast Maluku regency, Maluku Province, is one of the means in the seaweed cultivation and production. Additionally, as most people work as fishermen, theireconomic situation is getting improved although it is not yetin accordance with the target of maximum achievement at the level of life necessities. To increase the production and marketing of seaweed, this study usedthe Value Chain System which analyzedmain activities include the process of Nurseries, Operations, Logistics and phase of marketing and sales which are supported by Infrastructure, Human Resource Management, and Development of Seaweed Technology. In the description of the Value Chain, theanalysisof added-valuewas also performed on each main actor with a value of Rp. 288 to fishermen, Rp. 550 to Small Scale Traders, and Rp.850 to LargeScale Traders. The determination of the marketing strategy using SWOT analysis (Strengths, Weaknesses, Opportunities and Threats) produced the alternative marketing strategies in strategy formulation. It was concluded based on internal and external factors in the seaweed production and marketing processes. In this context, the analysis of the value chain system was critical to improve the market access and to ensure a more efficient flow of products, as well asto ensure that all actors benefit proportionally, according to their contributions.Keywords: Value Chain, Seaweed Marketing, SWOT

Model Pengaruh Persepsi Terhadap Kepuasan dan Loyalitas Pemustaka di Perpustakaan Nasional Republik Indonesia (Models Influence Perceptions to Satisfaction and Loyalty Library Users in National Library of The Republic of Indonesia) Leli Tamara; M. Syamsun; Ma'mun Sarma
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014
Publisher : IPB University

Improvement of service quality should be done consistently. Services of the National Library of the Republic of Indonesia should be based on the principle of public service. Efforts to improve the service factor will help deliver satisfaction and value -added library. Therefore, this research aimed to analyze influence perceptions to satisfaction and loyalty library user’s in National Library of The Republic of Indonesia. This research was conducted at the National Library of the Republic of Indonesia on closed access services. Methods of testing instruments used were SPSS Software 16.00 and hypothesis testing used structural equation modeling (SEM) by software SmartPLS 2.00. Characteristics of respondents predominantly female (68%), aged 17-25 years (82%), working as a student (79%) and educated S1 (76 %). Based on the analysis of SEM with PLS approach, we can see the influence of the six basic elements of the library (electronic resources, print publications, other services, technical facilities, library environment, human side) to the value, satisfaction and loyalty. The results showed, the other services have a significant influence with the value of the users in the National Library of the Republic of Indonesia. While the variables of human side, environmental and electronic library resources influenced to satisfaction in the National Library of Indonesia. While the value of users variables significantly influenced to loyalty in the National Library of the Republic of Indonesia. Therefore it can be concluded that not all of the basic elements of the library have influence to value, satisfaction and loyalty.Keywords : quality of service, value, satisfaction , loyalty, partial least squares (PLS)

Risiko Kredit Perumahan dengan Skema Fasilitas Likuiditas Pembiayaan Perumahan (Studi Kasus Bank BTN Pusat, Jakarta) (Credit Risk of Housing Finance with the Scheme of Liquidity Facility of Housing Finance (Case Study of Bank BTN Pusat, Jakarta)) Asep Rakhmat; Musa Hubeis; Tb. Nur Ahmad Maulana
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 4 No. 1 (2014): Jurnal Sains Terapan, Volume 4, Nomor 1, Tahun 2014
Publisher : IPB University

The purpose of this study is to analyze the credit risk of housing finance with the scheme of Liquidity Facility of Housing Finance and to find out the management and control of the credit risk of housing finance with the scheme of FLPP at Bank BTN. Credit risk measurement uses the Credit Risk+ method and obtains the alternative of credit risk control strategy using the Analytical Hierarchy Process(AHP). The result of calculation of the credit risk with the Credit Risk+ method shows the value of VaR for March 2013 of Rp 2,450 million or 9.38% of the total credit and it is based on the testing of the validity with the back testing method and the calculation of potential losses with the method of Credit Risk+ portfolio resulting the deviation of 5.27%. This shows that the method is in accord with the measuring of the potential loss of the credit risk of housing finance with the scheme of FLPP BTN in March 2013. The alternative strategies becoming the priority in controlling the credit risk of housing finance of the scheme of FLPP at Bank BTN are to tighten the character assessment of borrowers with the weight of 0.3547 and to give the intensive training about the eligibility analysis of borrowers to the Account Officers (AO) and Marketers in order to be more ready and competent in facing the increase of the filing of financing with the value of 0.2808. The study result shows that most involved actor and having the effect in controlling the credit risk of housing finance with the scheme of FLPP is AO with the weight of 0.2734, while the purpose is becoming the main priority in controlling the credit risk of housing finance of FLPP scheme and it is the eligibility of prospective borrower with the weight of 0.3716.Keywords : credit risk, controlling risk strategy, FLPP

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