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All Journal Jurnal Hortikultura Indonesia (JHI) Forum Pasca Sarjana Jurnal Teknik Industri Agrotekno Buletin Udayana Mengabdi JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Jurnal BETA (Biosistem dan Teknik Pertanian) Jurnal Ilmiah Teknologi Pertanian Agrotechno Jurnal Ilmiah Rekayasa Pertanian dan Biosistem AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Journal of Agricultural and Biosystem Engineering Research

Yohanes Setiyo

Program Studi Teknik Pertanian, Universitas Udayana

Author-ID : 2930776

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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ISOLASI BAKTERI SELULOLITIK PENDEGRADASI SELULOSA DARI KOMPOS Zainul Arifin; Ida Bagus Wayan Gunam; Nyoman Semadi Antara; Yohanes Setiyo
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 7 No 1 (2019): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

This study aimed to isolate cellulolytic bacteria that have the potential to degrade cellulose taken compost samples from Temesi and Bondowoso, this study was also conducted to determine the ability of bacteria to degrade cellulose based on Congo red test and filter paper degradation test. All isolates were tested for cellulolytic activity using soluble Carboxymethyl Cellulose (CMC). Characterization was carried out by growing selected pure isolates on CMC media and then dripping 0.1% congo red to test the cellulolytic potential (cellulolytic potential was characterized by the emergence of clear zones around the colony). The results of isolation of bacteria obtained 38 isolates, namely 26 Bondowoso sample isolates and 12 Temesi isolates that were able to grow and utilize cellulose as a carbon source. But only fourteen isolates produced clear zones in the Congo red test with diameters ranging from 1.66 cm to 6.76 cm. Six isolates that have the largest diameters clear zone, were tested for degradation of filter paper (Whatman no. 1). Isolates bacteria of B2S8 obtained from Bondowoso compost samples has the highest ability to degrade cellulose on Whatman paper no. 1 as much as 51.30%. Keywords: Compost, Isolation, Screening, Cellulolytic Bacteria.

Rancang Bangun Alat Pemanen Buah Salak Sederhana Dewa Bagus Putu Prabha Diptaya; Ida Bagus Putu Gunadnya; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 2 (2020): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

ABSTRAK Salak (Salacca edulis, Reinw) yang buahnya dikenal sebagai snake fruit adalah sejenis tanaman palem yang tumbuh di dataran tinggi. Pohon buah ular memiliki batang dengan banyak duri dan memiliki batang yang panjang dan berduri. Tandan buahnya dekat dengan pohon, jadi tidak mudah untuk memanen dan mendapatkan tandan buah yang utuh. Tujuan dari penelitian ini adalah untuk merancang pemanen sederhana dan dioperasikan secara manual sehingga dapat mempercepat waktu panen operator. Alat ini memiliki pisau pemotong berbentuk sabit dan jaring untuk menangkap di bawahnya. Pegangan pemotong dan pegangan terbuat dari bahan pipa aluminium. Alat ini secara fungsional memotong satu tandan buah ular dan tandan terasa tepat di jaring sehingga kerusakan tandan buah dapat diminimalkan dan mempersingkat waktu panen. Pemanen diuji oleh 5 operator yang masing-masing memanen 10 pohon. Data yang dikumpulkan dianalisis dengan menggunakan metode deskriptif dan hasilnya menunjukkan bahwa alat panen yang dirancang bekerja dengan baik dengan efektivitas tandan buah utuh yang dipanen adalah 84,0% dan dengan waktu panen rata-rata 8,31 menit. ABSTRACT Salak (Salacca edulis, Reinw) known as snake fruit . This fruit is a species of palm trees that grows in the highlands. The tree has thorny trunks and long stalks. Its fruit bunches are closed to the tree, so it is not easy to harvest and to get intact fruit bunches. The purpose of this research was to design a simple and manually operated harvester so that it can speed up the harvesting time. This tool had a sickle-shaped cutting knife and a net underneath to catch the fruit. The handle of the cutter and handrail sticks were made of aluminum pipe. This tool cut a snake fruit bunch and the bunch would fall exactly in the net so that the damage of the fruit bunch could be minimized and shortened the harvesting time. Harvester was tested by 5 operators that harvesting 10 trees each. Collected data was analyzed by using descriptive method and the results showed that the designed harvesting tool worked well with the effectiveness of intact harvested fruit bunch was about 84,0% and with average harvesting time of 8,31 minutes.

Pengaruh Saluran Aerasi pada Pengomposan Berbahan Baku Jerami I Wayan Budiarta; s Sumiyati; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 1 (2017): maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (389.662 KB)

Sisa panen berupa jerami padi varietas unggul bisa mencapai 25 ton/ha dapat dimanfaatkan sebagai bahan baku pembuatan pupuk kompos. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh saluran aerasi terhadap proses pengomposan, dan mengetahui kualitas kompos yang dihasilkan dari bahan baku jerami. Penelitian ini menggunakan dua perlakuan yaitu: P1 : pengomposan jerami padi dengan saluran aerasi; P2 : pengomposan jerami padi tanpa saluran aerasi. Panjang tumpukan kompos 1,5 m, lebar 1 m, dan tinggi 1 m. Parameter yang diamati adalah suhu, kelembaban, kadar air, rendemen, pH, nitrogen, karbon dan rasio C/N. Proses pengomposan berlangsung selama 12 minggu. Proses pengomposan pada perlakuan pengomposan dengan saluran aerasi cenderung berjalan lebih lambat dibandingkan perlakuan pengomposan tanpa saluran aerasi. Kualitas kompos yang dihasilkan dari bahan baku jerami pada perlakuan P1 dan P2 sudah sesuai dengan standar kompos padat dari Peraturan Menteri Pertanian Nomor 70/Permentan/SR.140/10/2011. Crop residues such as supreme variety rice straw can reach about 25 ton/ha which can be used as raw material for composting. The purpose of this research were to determine the effect of channels aeration of the composting process, and to find the compost quality produced from rice straw. Two treatments were conducted, namely: P1 : rice straw composting with aeration channel; P2 : rice straw composting without aeration channel. About 1.5 m long, 1 m wide and 1 m high of dimension of compost heap respectively were conducted. The parameters measured were temperature, humidity, water content, yield, pH, nitrogen, carbon and C/N ratio. The composting process lasted for 12 weeks. The composting process in the composting treatment with aeration channels tend to run slower than composting treatment without aeration channels. The quality of the compost produced from rice straw on the treatment P1 and P2 were appropriate the standard compost appointed by Peraturan Menteri Pertanian Nomor 70/Permentan/SR.140/10/2011.

Pengaruh Penambahan Bakteri Nitrifikasi pada Fermentasi Urin Sapi Terhadap Kualitas Pupuk Organik Cair Gede Jaya Kusuma Putra; Yohanes Setiyo; I Nyoman Sucipta
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 10 No 1 (2022): 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.2022.v10.i01.p02

ABSTRAK Penelitian ini membahas mengenai proses fermentasi urin sapi menjadi pupuk organik cair (POC). Tujuan dari penelitian ini yaitu mengkasi pengaruh penambahan bakteri Nitrifikasi pada proses urin sapi, sehingga didapatkan kwalitas POC terbaik. Pada penelitan ini menggunakan Rancangan Acak Lengkap (RAL), dengan lima perlakuan berbeda dan diulang sebanyak tiga kali. Perlakuan yang dilakukan menggunak satu fakor MN1 (mollase 2% dan inokulum Nitrifikasi 1%), MN2 (mollase 2% dan inokulum Nitrifikasi 2%), MN3 (mollase 2% dan inokulum Nitrifikasi 3%), MN4 (mollase 2% dan inokulum Nitrifikasi 4%), MN5 (mollase 2% dan inokulum Nitrifikasi 5%) dan dimasukan kedalam urin sapi sebanyak 5 liter. Fermentasi ini dilakukan selama 15 hari, variabel yang diamati yaitu Electrical Conductivity (EC), Derajat Keasaman (pH), Total Dissolved Solids (TDS), suhu, populasi mikroba, C-Organik, dan N-total. Dalam proses fermentasi selama 15 hari didapatkan nilai N-Total pada sampel MN4, dan MN5 lebih rendah dibandingkan dengan sampel yang lainnya. Sedangkan C-Organik pada hari ke 15 sampel MN3, NM4 dan MN5 memilikin nilai yang hampir sama yaitu beriksar 0,600-0,650. Untuk hasil populasi bakteri sampel MN4 dan MN5 di hari ke 15 mengalami penurunan perkembangan populasi. Selama proses fermentasi hasil terbaik terdapat pada sampel MN1 ini dilihat dengan hasil N-Total 0.050%, C-Organik 0.945%, C/N rasio 18.9%, dan populasi mikroba 442.666.667 CFU/ml. Penelitian ini dapat meningkatkan N-total dan perkembangan bakteri yang cukup baik, namun hasil ini masih jauh dari standar yang telah ditetapkan oleh Keputusan Menteri Pertanian Republik Indonesia No: 261/KPTS/SR.310/M/4/2019. ABSTRACT This study discusses the process of fermentation of cow urine into liquid organic fertilizer (POC). The purpose of this study was to examine the effect of adding Nitrifying bacteria to the process of cow urine, so that the best POC quality was obtained. There was this research using a completely randomized design (RAL), with five different treatments and three replications. The treatments were carried out using one factor MN1 (2% mollase and 1% Nitrifying inoculum), MN2 (2% mollase and 2% Nitrification inoculum), MN3 (2% mollase and 3% Nitrification inoculum), MN4 (2% mollase and Nitrification inoculum 4%), MN5 (mollase 2% and Nitrification inoculum 5%) and put into cow urine as much as 5 liters. This fermentation was carried out for 15 days, the observed variables were Electrical Conductivity (EC), Degree of Acidity (pH), Total Dissolved Solids (TDS), temperature, microbial population, C-Organic, and N-total. In the fermentation process for 15 days, the N-Total value in the MN4 and MN5 samples was lower than the other samples. While the C-Organic on the 15th day of the MN3, NM4, and MN5 samples had almost the same value, namely 0.600-0.650. For the results of the bacterial population samples, MN4 and MN5 on day 15 experienced a decrease in population development. During the fermentation process the best results were found in the MN1 sample, seen with the results of N-Total 0.050%, C-Organic 0.945%, C / N ratio 18.9%, and microbial population 442,666,667 CFU / ml. This research can increase N-total and the development of bacteria which is quite good, but this result is still far from the standard set by the Decree of the Minister of Agriculture of the Republic of Indonesia No: 261 / KPTS / SR.310 / M / 4/2019.

OPTIMALISASI PROSES FERMENTASI URIN SAPI MENJADI BIOURIN Merisa - Aritonang; yohanes - setiyo; I.B.P. - Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 1 No 2 (2013): Agustus
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (793.142 KB)

Telah dilakukan penelitian mengenai fermentasi urin sapi menjadi biourin. Tujuan penelitian ini adalah mengoptimasi proses fermentasi urin menjadi biourin dengan pemberian starter dan gula merah. Penelitian ini menggunakan Rancangan Acak kelompok pola faktorial 2 faktor dengan 3 taraf perlakuan. Faktor pertama berupa perlakuan konsentrasi starter Rumino bacillus dengan konsentrasi 0 ml, 15 ml dan 30 ml. Faktor kedua adalah perlakuan gula merah 0, 15 dan 30 g. Masing-masing perlakuan di ulang sebanyak 3 kali. Variable yang diamati adalah pH, total asam, total padatan terlarut, C-organik dan N-total. Hasil penelitian menunjukan bahwa penambahan starter R. bacillus sejumlah 15 - 30 ml dan gula merah 15 - 30 g dalam 1.500 ml urin sapi dapat mempercepat produksi biourin dalam proses fermentasi urin sapi yang diambil dari Simantri nomor 225. Umur urin sapi sebelum diproses yaitu satu hari dari saat dikeluarkan oleh sapi dewasa. Proses fermentasi dilakukan selama 7 hari dapat dipercepat menjadi 5 hari, hal ini ditandai dengan stabilnya nilai pH, total asam dan total padatan terlarut mulai hari ke-5. Konsentrasi starter R. bacillus 30 ml dengan penambahan gula merah 30 g pada 1.500 ml urin sapi yang difermentasi merupakan perlakuan optimal yaitu nilai pH 6, total asam 0,5%, total padatan terlarut 3,80Brix. Hal ini didukung oleh standar dari Permentan Nomor 70 dengan nilai pH 4 - 9. Namun, penelitian untuk nilai C-organik dan N-total belum cukup memenuhi standar Permentan yaitu C-organik 6% dan N-total 3-6% An experiment on biourine fermentation using cow urine has been carried out. The objective of this research was to optimize biourine fermentation by adding starter and palm sugar. The reseach used Completed Randomized Block Design with factorial pattern of 2 factors and 3 levels each. The first factor was starter concentrations of Rumino bacillus 0, 15, and 30 ml. The second one was weight of palm sugar added at 0, 15, and 30 g. Each treatment was repeated 3 times. Varibles observed were pH, acid, soluble solid, organic C, and total N. Results of the research indicated that starter addition of 15-30 ml and palm sugar 15-30 g for every 1500 ml cow urine accelerated biourine production in the fermentation stage of cow urine which was taken from simantri number 225. The fermentation process was carried out for 7 days and by adding this combination of traitment shortening the process to 5 days. This was shown by pH,total acid,and total dissolve solids value of urin which was stable after 5 days of fermentation. Concentration of 30 ml R. bacillus with the addition of 30 grams brown sugar in 1,500 ml of fermented cow urine is the optimal treatment in which the value of pH is 6, 0.5% total acid, and 3.80Brix total dissolved solids. This is supported by the standard of Permentan Number 70 with a pH value of 4-9. However, the research for C-organic and N-total has not fulfilled the standard of Permentan in which the C-organic is 6% and N-total is 3-6%. Keywords: fermentation, cow urine, biourine

Optimalisasi Proses Fermentasi Urin Sapi Komang Suteja Pramana; Yohanes Setiyo; I Gst. Ngr. Apriadi Aviantara
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 1 (2019): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Penelitian ini membahas mengenai fermentasi urin sapi menjadi biourin. Tujuan penelitian ini adalah mengoptimalkan proses fermentasi urin sapi menjadi biourin dengan pemberian starter biourin. Penelitian ini memakai Rancangan Acak Lengkap dengan empat perlakuan dan tiga kali ulangan. Perlakuan tersebut adalah tanpa starter biourin, 10 persen starter biourin, 20 persen starter biourin, dan 30 persen starter biourin. Setiap perlakuan diberi 1 liter molase dan 1 buah aerator. Variable yang diamati adalah biochemical oxygen demand, derajat keasaman (pH), total dissolved solids, electrical conductivity, C-organik dan total-N. Hasil dari penelitian ini adalah penambahan starter tidak berpengaruh nyata terhadap proses fermentasi urin sapi. Namun proses fermentasi urin sapi dapat dipercepat dari 15 hari menjadi 6 hari, hal ini ditandai dengan nilai biochemical oxygen demand dan pH yang sudah menurun pada hari ke 6 fermentasi. Hasil fermentasi sudah sesuai dengan standar No.70/Permentan/SR.140/10/2011. Dari empat perlakuan pada proses fermentasi urin sapi, perlakuan tanpa starter biourin merupakan perlakuan yang terbaik. Perlakuan tersebut menghasilkan electrical conductivity 5670 mS, biochemical oxygen demand 2,8 mg/l, total dissolved solids 2835 ppm, derajat keasaman pH 6,24, C-organik 3,70 persen, N-total 0,13 persen dan rasio C/N 29,63. Namun, untuk kandungan N-total biourin belum cukup memenuhi standar Permenta yaitu 3 – 6 persen. This study discusses the fermentation of cow urine into bio urine. The purpose of this study was to optimize the fermentation process of bio urine from cow urine by giving starter bio urine. This study used a Completely Randomized Design with four treatments and three repeat. The treatment were without starter bio urine, 10 percent starter bio urine, 20 percent starter bio urine, and 30 percent starter bio urine. Each treatment was giving 1 liters molasses and 1 aerator. The observed variables were the degree of acidity (pH), biochemical oxygen demand, total dissolved solids, electrical conductivity, organic carbon, and nitrogen. The result of this study was the addition of starter no significant effect on the fermentation process of cow urine. But the process of cow urine fermentation can be accelerated from 15 days to 6 days. This is marked by the value of biochemical oxygen demand which has decreased on the 6 day of fermentation. Fermentation result was according on the standard No.70/Permentan/SR.140/10/2011. Of the four treatments in the process of cow urine fermentation, the treatment with no starter of bio urine was the best treatment, the treatment produce electrical conductivity 5622 mS, biochemical oxygen demand 3.3 mg/l, total dissolved solids 2811 ppm, acidity pH 5.77, organic carbon 3.77 percent, nitrogen 0.14 percent and C/N ratio 26,93. However, for the nitrogen content of bio urine not enough to meet the Permenta standard was 3-6 percent.

Pengomposan Sampah Canang dengan Model Pengomposan di Wadah Berbentuk Silinder I Made Dwijantara Putra; Yohanes Setiyo; Sumiyati Sumiyati
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 1 (2020): April
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

The use of diameter treatment and supplementary material for cow manure in the process of composting canang waste raw materials can produce quality in accordance with SNI. In this study using three treatments of composting basket diameter: 60 cm in diameter, 40 cm in diameter and 20 cm in diameter with the same height of 100 cm and the addition of cow manure: canang garbage 1: 1. Observed parameters include temperature, pH, carbon and nitrogen compost . The composting process lasts for thirty days with temperatures of 29 - 56 ? and pH of compost 4.3 - 6.9, with the resulting compost color blackish brown. In general, the quality of compost produced from the three treatments with a final C / N ratio of 13.05 - 22.0. Penggunaan diameter perlakuan dan bahan pelengkap kotoran sapi dalam proses pengomposan bahan baku limbah canang dapat menghasilkan kualitas yang sesuai dengan SNI. Dalam penelitian ini menggunakan tiga perlakuan diameter keranjang kompos: diameter 60 cm, diameter 40 cm dan diameter 20 cm dengan tinggi yang sama 100 cm dan penambahan kotoran sapi: sampah canang 1: 1. Parameter yang diamati meliputi suhu, kompos pH, karbon dan nitrogen. Proses pengomposan berlangsung selama tiga puluh hari dengan suhu 29 - 56 ? dan pH kompos 4.3 - 6.9, dengan warna kompos yang dihasilkan berwarna coklat kehitaman. Secara umum, kualitas kompos dihasilkan dari tiga perlakuan dengan rasio C / N akhir 13,05 - 22,0.

Optimasi Suhu Pengeringan dan Ketebalan Irisan pada Proses Pengeringan Jahe Merah (Zingiber officinale var. rubrum) dengan Response Surface Methodology (RSM) Desak Agung Hepi; Ni Luh Yulianti; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 1 (2021): 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.2021.v09.i01.p07

Suhu pengeringan dan ketebalan irisan merupakan dua hal yang mempengaruhi proses pengeringan jahe merah. Penelitian dirancang dengan tujuan untuk mendapatkan kombinasi suhu pengeringan dan ketebalan irisan optimum melalui Response Surface Methodology (RSM), serta memperoleh model matematika untuk memprediksi kadar air, aktivitas air, kadar abu dan energi panas penguapan. Pengujian dilakukan untuk mengetahui pengaruh suhu dan ketebalan irisan terhadap respon kadar air, aktivitas air, kadar abu dan energi panas penguapan. Pengolahan data menggunakan aplikasi Design Expert ® 12. Hasil penelitian menunjukkan model linier untuk memprediksi respon kadar air dan kadar abu. Model kuadratik untuk memprediksi respon aktivitas air dan energi panas penguapan. Hasil verifikasi model menunjukkan kombinasi suhu pengeringan dan ketebalan irisan optimum terpilih adalah 67,30C dan 3 mm. Proses pengeringan dengan kombinasi suhu pengeringan dan ketebalan irisan optimum menghasilkan nilai aktual aktivitas air 0,393 aw, kadar air 9,877%, kadar abu 3,513% dan energi panas penguapan sebesar 68,354 kJ/Jam. Respon dari kombinasi suhu pengeringan dan ketebalan irisan optimum terpilih dapat memenuhi keinginan sesuai kriteria dengan nilai desirability 81,3%. Drying temperature and thickness of slices are two things that affect the drying process of red ginger. The research was designed with the aim of obtaining a combination of drying temperature and optimum slice thickness through the Response Surface Methodology (RSM), as well as obtaining mathematical models to predict water content, water activity, ash content and evaporation heat energy. Testing was conducted to determine the effect of the temperature and thickness of the slices on the response of water content, water activity, ash content and evaporation heat energy. Data processing using design expert application ® 12. The results showed linear models to predict the response of water levels and ash levels. Quadratic models to predict the response of water activity and evaporation heat energy. Model verification results show the combination of drying temperature and optimum slice thickness selected is 67.30C and 3 mm. The drying process with a combination of drying temperature and optimum slice thickness resulted in an actual water activity value of 0.393 aw, water content of 9.877%, ash content of 3.513% and evaporation heat energy of 68,354 kJ/h. The response of the combination drying temperature and thickness of selected optimum slices can meet the wishes according to the criteria with a desirability value of 81.3%.

Pengaruh Bahan Tambahan pada Kualitas Kompos Kotoran Sapi Ni Made Eva Yulia Dewi; Yohanes Setiyo; I Made Nada
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 1 (2017): maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Penggunaan bahan tambahan pada proses pengomposan bahan baku kotoran sapi dapat menghasilkan kompos yang berkualitas yang memuhi standar. Penelitian ini mengunakan perlakukan kotoran sapi, kotoran sapi : serbuk kayu 2 : 1, kotoran sapi : sekam 2 : 1, dan kotoran sapi : rumput 2 : 1. Panjang tumpukan pegomposan 1.5 m, tinggi 80 cm, dan lebar 1 m. Parameter yang diamati meliputi suhu, pH, karbon dan nitrogen kompos. Proses pengomposan berlangsung selama delapan minggu dengan suhu antara 25- 51 0C dan pH kompos antar 6.6 – 7.0. Warna kompos yang dihasilkan adalah dengan warna coklat kehitam-hitaman. Secara umum, kualitas kompos yang dihasilkan dari keempat perlakukan sesuai dengan Standar SNI 19-7030-2004 dengan C/N rasio akhir 16-8 – 20.93. The used of additional materials in the composting process of cow manure feedstock can produced qualified compost that can fulfill standard of compost. This study used the treatment of exponential design cow manure, cow manure:saw dust 2:1, cow manure:rice hull 2:1, and cow manure:elephant grass 2:1. The dimension of pile composting was 1.5 m, with height was 80 cm, and 1 m of width. The observed parameters included temperature, pH, carbon and nitrogen compost. The composting process were during eight weeks that result which have temperature between 25-51oC , compost pH between 6.6-7.0, C/N ratio is 16.8-20.93. The color of produced compost was dark brown. The quality of the produced compost from the four treatments were accordance to SNI Standard 19-7030-2004.

Analisis Pengembangan Bisnis Usaha Minuman Kopi (Studi Kasus Greenhouse Coffee and Meal, Denpasar) Ida Ayu Inten Dwi Sulatri; I Made Merta; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 1 (2018): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Tujuan dari penelitian ini adalah untuk menghitung kelayakan bisnis atau kelayakan finansial dan untuk mengetahu Strengths, Weakness, Opportunities, Threaths (SWOT) pada suatu usaha minuman kopi. Analisis kelayakan usaha atau kelayakan finansial menggunakan analisis deskriptif kuantitatif dengan menggunakan perhitungan NPV, IRR, dan BEP dan untuk analisis Strengths, Weakness, Opportunities, Threaths (SWOT) menggunakan analisis deskriptif kualitatif. Bisnis minuman kopi secara keseluruhan sangat menguntungkan dengan keuntungan bersih Rp. 28.600.950/tahun dan layak dikembangkan. Hal ini didasarkan pada analisis kelayakan usaha atau kelayakan finansial yaitu NPV Rp. 22.280.872. Analisis sensitivitas menunjukkan bahwa kenaikkan biaya operasional sebesar 15% dan penurunan pendapatan 10% tidak mempengaruhi kelayakan proyek atau sebuah usaha. Berdasarkan hasil penelitian terhadap bisnis minuman kopi sangat layak untuk dikembangkan. This study aimed to calculate the feasibility of financial feasibility and to find out the Strengths, Weakness, Opportunities, Threaths (SWOT) on a coffee beverage business. Financial feasibility analyzed by quantitative descriptive analysis method using Net Present Value (NPV), Internal Rate of Return (IRR) dan Break Event Point (BEP) calculations and for analysis of Strengths, Weakness, Opportunities, Threaths (SWOT) was analyzed by qualitative descriptive method. The overall coffee beverage business is very profitable with a net profit of Rp. 28.600.950/year and is worth developing. This is based on the feasibility analysis of business or financial feasibility of Net Present Value (NPV) Rp. 22.280.872. Sensitivity analysis indicates that an increase in operating costs by 15% and a 10% revenue decrease do not affect the feasibility of a project or a business. Based on the results of this study on coffee beverage business is very feasible to develop.

Co-Authors Ali Husyain Sakti Arief Sabdo Yuwono Dandy Zulfikar Sulthan Siata Desak Agung Hepi Dewa Bagus Putu Prabha Diptaya Gede Jaya Kusuma Putra Guna, Kadek Mahendra Adhi Gusti Bagus Eka Chandra Hadi K. Purwadaria Handayani Nofiyanti, Sri Henggar Jaya, Gigieh I B Werdi Putra I Dewa Gde Mayun Permana I Gusti Ayu Lani Triani I Gusti Ketut Arya Arthawan I Gusti Ketut Arya Arthawan I Gusti Ngurah Apriadi Aviantara I K. Satriawan I Kadek Ari Andika I Made Andi Purnama Wijaya I Made Anom Sutrisna Wijaya I Made Dwijantara Putra I Made Merta I Made Mudiarta I Made Nada I Made Nanda Suastika I Made Sudana I Made Suphartha Utama I NYOMAN RAI I Nyoman Semadi I Nyoman Sucipta I Putu Gde Suhartana I Putu Gede Budisanjaya I Putu Surya Wirawan I Putu Tantra Ardika I Wayan Arsa I Wayan Budiarta I Wayan Edy Wirawan I Wayan Krispedana I Wayan Satrio Wiantara I Wayan Sugiana I Wayan Tika I Wayan Tika I Wayan Widia I Wayan Widia I WAYAN WIRAATMAJA I. A. G. Bintang Madrini Ida Ayu Inten Dwi Sulatri Ida Ayu Mahatma Tuningrat Ida Ayu Rina Pratiwi Pudja Ida Ayu Rina Pratiwi Pudja Ida Ayu Rina Puja Ida Bagus Putu Gunadnya Ida Bagus Wayan Gunam Jarinsen Yanardo Purba Kadek Mila Adiani KETUT BUDI SUSRUSA Komang Sri Diah Nirmala Dewi Komang Suteja Pramana Lutfi Suhendra M Ikram M. Ahkam Subroto Made Arya Bhaskara Putra MADE MERTA Made Pila Putra Made S Utama Merisa - Aritonang Muhdan Syarovy Muna, Mukhes Sri Ni luh Devi Widyanti Ni Luh Putu Sarasulistian Ni Luh Trimayanti Ni Luh Yulianti Ni Made Eva Yulia Dewi Ni Nyoman Sulastri Ni Putu Ayu Prya Chandani Ni Putu Yuliasih Ni Putu Yuliasih Ni Wayan Diana Sepriani NYOMAN SEMADI ANTARA Putu Citra Dewi Rina Pratiwi Pudja I. A Ronni Agriva Sembiring roy zulkarnaen Sebastiao Massa Sukma Elvayani, I Gusti Ayu Evi Sumiyati - Sumiyati - Sumiyati Sumiyati Sumiyati Sumiyati Sumiyati Utama, Made S Wayan Tika Yosika, Nur Ida Winni Yudha Kristyanto Leksono Zainul Arifin

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