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

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Abstract

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