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I Wayan Widia
Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Pengaruh Komposisi Kotoran Sapi dan Pelepah Rebung Bambu Tabah serta Konsentrasi Aktivator terhadap Kualitas Kompos yang dihasilkan Daniel Rama Prawiratama; I Wayan Widia; I Nyoman Sucipta
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 1 (2020): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2020.v08.i01.p04

Abstract

The purpose of this study was to obtain the composition of the ingredients and coordinate the optimal activator on compost quality in accordance with the Indonesian National Standard (SNI) 19-7030-2004. The raw materials used in composting are bamboo shoots and cow dung waste. The activator used was from a 2-week fermentation process from a banana hump that was added to rice washing water and brown sugar. The composting process in this study used a bamboo basket with a height of 100cm and a diameter of 60cm. The method used is factorial Completely Randomized Design with two factors. The first factor is the composition of cow dung and tabah bamboo shoot waste which consists of 5 levels, namely: 100%: 0%, 75%: 25%, 50%: 50%, 25%: 75%, and 0%: 100%. The second factor is the concentration of activator consisting of 3 levels, namely 250 ml, 500 ml and 750 ml. Each time repeated 2 times. In the process of composting temperature and pH every day for 31 days. Water, C-Organic (%), Nitrogen (%) is observed at the beginning and end of the composting process. The combination of treatment of cow dung and bamboo shoots and the concentration of activators had a very significant effect on the compost and pH yield values. The best treatment composition is A3.B3 with a comparison of the composition of cow manure and bamboo shoot midrib (50%: 50%) concentration of 750 ml activator, producing compost with the best quality, namely with pH 6.93, moisture content 35.95%, C-organic 23.9%, N-total 1.46%, C / N ratio of 16.42%. The compost produced is blackish brown in color, has a crumb texture compared to other treatments.
Studi Beban Pendinginan Ikan Menggunakan Brine dengan Jenis Garam dan Konsentrasi Berbeda Rahmat Effendi Lubis; Ni Luh Yulianti; I Wayan Widia
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 1 (2020): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2020.v08.i01.p09

Abstract

The purpose of this study is to (1) the characteristics of some of the salts used on the brine cooling capacity and (2) to find out how the effect of brine cooling with different types of salt and concentrations on fish cooling loads. This study uses a complete randomized design each consisting of two treatment factors and three replications, namely the treatment of salt NaCl, KCl, CaCl2, and the treatment concentration of 20 grams, 70 grams, and 120 grams for each salt. For brine and fish temperature measurements using a digital thermometer. Brine temperature measurement is done once and recorded every 15 minutes until the temperature has increased and constant (10 hours), then brine temperature data is used for fish cooling purposes, fish temperature measurement is done once and recorded every 15 minutes until the temperature has increased and is constant (10 hours ). Data analysis of the results of measurements of brine temperature, fish temperature, pH, total heat transfer of energy and water holding capacity (driploss) of fish meat using Microsoft Excel computer programs to obtain charts, then continued analysis using analysis of variance (ANOVA). The results of cooling research using brine showed that the lowest brine temperature was produced in the NaCl salt treatment concentration of 120 grams for -2.460C and the lowest fish temperature produced in the NaCl salt treatment concentration of 120 grams for -1.40 0C also so that it had an impact on the results of the total heat transfer parameters because the colder temperature of the cooling medium had an impact on the heat of the displaced fish, the highest total heat transfer occurred in the treatment of 120 grams of NaCl salt treatment of 9.6 kJ. It can be concluded that the best treatment of the cooling load and quality of fish in this study is the treatment of 120 gram concentration of NaCl (a1b3
Co-Authors Daniel Rama Prawiratama I Nyoman Sucipta Ni Luh Yulianti Rahmat Effendi Lubis