Pustaka Ilmiah Universitas Padjadjaran

Abstrak

THE EVALUATION OF FERMENTATIVE CAPABILITY OF CELLULOTIC FUNGI FROM COW RUMEN FLUID AGAINST DECREASE IN CRUDE FIBER AND READY AVAILABLE CARBOHYDRATE IN CASSAVE PEEL WASTE

This research had the purpose of finding out the decrease in crude fiber contentin cassava peel waste (Manihot esculenra Crantz) through the fermentation proses with cellulotic fungi Aspergillus lamarfi and Peniciliium nalgiovense which were isolated from cow rumen fluid, and the efficienty of fermentation of the utilization the microbe in question. The product of fermentation will be use as a feed alternative for herbivore fishes. The method used was the descriptive and experimental method. The descriptivemethod was used to measure the sugar reduction content, Dextrose equivalent (DE), and to measure fungi growth (TPC) at the time of fermentation. The experimental method was used to find out the capability of cellulotic fungi isolate in question with respect to decline in crude fiber content. The research was conducted using the Completely Randomized Design (CRD) of the 3×3 factorial pattern with 3 replicates. Factor I is the fungi type, which consists of Aspergiilus famarii, Penicfllium nalgiovense, consortium Aspergiflus tamarii and Penfcillium nalgiovense. Factor ll is the inoculum dosage which consists of 1%, 2,5% and ‘5%.
The results of fermentation showed that Aspergillus tamarii at 1% was effective in lowering the crude fiber content dan had the best fermentation efficiency. The crude fiber content of cassava peel waste declined with a 20.85% decline percentage. The cassava peel waste fermentation” (DE) efficiency utilized A- tamer-if at 1% dosage, reaching 29.05% with an amount of sugar reducing agent of l5931.0345 rnglL. The occurrence of degradation of crude fiber was further reflected in celluosa and hemicellulosa composition after fermentation, where the cellulosa content declined 37.95% dan hemicellulosa as readily avaiiabe carbohydrate increased 21%.