Irsan Riyanto
Department of Animal Husbandry, University of Andalas, Padang, Indonesia

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Quality Improvement of Oil Palm Waste-Based Feed Product Through Indigenous Microbial Fermentation to Reach Sustainable Agriculture Yunilas, Yunilas; Warly, Lili; Marlida, Yetti; Riyanto, Irsan
International Journal on Advanced Science, Engineering and Information Technology Vol 4, No 4 (2014)
Publisher : International Journal on Advanced Science, Engineering and Information Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1822.277 KB) | DOI: 10.18517/ijaseit.4.4.417

Abstract

This study aims to improve the quality of oil palm waste-based feed product through indigenous microbial fermentation. The methods used Factorial Completely Randomized Design (CRD) with a pattern of  3 x 4 with 3 replications. Treatment of factor I was the substrat combination of oil palm waste and factor II the inoculum combination of microbial. Parameters which is observed such as: dry matter, crude protein, and crude fiber.  The result showed that the uses of inoculums of indigenous microbial (Bacillus YL.B1, Trichordema YL.F8, Yeast YL.YS3) fermentation on oil palm created a significant improvement (P<0.01) by increasing crude protein content and decreasing crude fiber content. It caused the crude protein content up to 57.65% and crude fiber content down to 15,60%. This study proved that the uses of indigenous microbial fermentation improved the quality of oil palm-based waste feed product to reach sustainable agriculture.
The Activity Of Cellulose Enzyme From Indigenous Bacteria "Bacillus Sp YLB1" As Bioactivator ., Yunilas; Warly, Lili; Marlida, Yetti; Riyanto, Irsan
Jurnal Peternakan Integratif Vol 7, No 2 (2019)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.391 KB)

Abstract

This study aims to test the activity of cellulase enzyme (CMCase) from indigenous bacteria "Bacillus Sp YLB1" as bioactivator of palm oil based feed. The treatment consists of various combinations of substart (feed), namely: P1 = 80% palm leaves + 10% palm kernel cake + 10% sludge; P2 = 60% palm leaves + 20% palm kernel cake + 20% sludge and P3 = 60% palm leaves + 30% palm kernel cake + 30% sludge. The parameters observed were cellulase enzyme activity (CMCase) on various combinations of palm oil waste and fermentation time. The results showed that cellulase enzyme (CMCase) production of Bacillus sp YLB1 bacteria during fermentation fluctuated ie 0.143 Units / ml; 0.372 Units / ml; 0.588 Units / ml; 1.013 Units / ml; 0.906 Units / ml; 1,065 Units / ml and 1,198 Units / ml.The activity of cellulase enzyme (CMCase) on substrate P1 (0.460 Unit / ml) is lower than P2 (0.897 Unit / ml) and P3 (0.908 Units / ml). From the results of this study can be concluded that cellulase enzyme activity indigenous bacteria Bacillus sp YLB1 influenced by the combination of substrate and fermentation time. The P3 substrate fermented with Bacillus sp YLB1 for 7 days gave a more optimal result than the other treatments.   Keywords: Cellulase enzyme, indigenous bacteria, substart (feed)