DEGRADASI TANDAN KOSONG KELAPA SAWIT, AMPAS KELAPA, DAUN TEBU, BAGLOG, DAN MAHKOTA NANAS MENGGUNAKAN ENZIM SELULASE
| Main Authors: | , IBNU PRASETYA, , Prof. Dr. Ir Djagal W. Marseno, M.Agr. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2014
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/132756/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=73299 |
Daftar Isi:
- Agroindustrial waste consisted dominantly by lignocellulosic material which can be converted into biofuel (e.g bioethanol) promising a cheap, abundant, and renewable alternative energy source to replace limited fossil fuel as the main energy source nowadays. Some of the agroindustrial waste are Oil palm empty friut bunch (OPEFB), coconut dregs, sugar cane leaf, sawdust, and pineapple crown. Enzymatic hydrolysis has become one of the promising method to convert lignocellulosic material to reducing sugar that can be utilized as raw material for biofuel. Every agroindustrial waste consist of cellulose material which joined with lignin and hemicellulose to form lignocellulosic material has different enzymatic digestibility that influenced by some factor, some of them are material physical properties, composition of the lignocellulosic material and the cellulose crystalinity. The objective of this research is to find out enzymatic degradability of the waste so its potential utilization to be the biofuel alternative material can be discover. The study was conducted by analyzing the initial lignocellulosic composition of each wastes and the cellulose crystallinity index of the waste. Then the enzymatic hydrolysis of the waste is conducted for 72 hours with the analysis of the reduction sugar every 12 hours using the DNS assay to determine how much cellulose which can be hydrolized. This degree of convertion is stated as CCR (Cellulose Convertion Ratio) dan glucose yield (g glucose/kg waste material) . Based on the experiment of this research, after 72 hours of hydrolysis time by cellulase enzyme, pineapple crown has the highest enzymatic digestibility that described in CCR (Cellulose Convertion Ratio) with 52,36 % and yield 169,08 g glucose/kg waste, followed by coconut dregs with 32,19 % and yield 108,75 g glucose/kg waste material, sawdust 23,26 % and 84,51 g glucose/kg waste, OPEFB 9,64 % and 59,86 g glucose/kg waste, and the last is sugarcane leaf with 9,58 % CCR and 52,10 g glucose/kg waste yield. From this research, it is concluded that pineapple crown has the highest enzymatic degradability so it has the best potential use as a source of biofuel material when viewed from the cellulose convertion ratio of the waste.