Optimization of Bacterial Doses and Incubation Time on Bio-Ehanol Fermentation of Nipah （Nypa fruticans） for Biofuel Energy
Optimization of Bacterial Doses and Incubation Time on Bio-Ehanol Fermentation of Nipah （Nypa fruticans） for Biofuel Energy作者机构：Agricultural Engineering Jenderal Soedirman University Purwokerto 53123 Indonesia Chemistry Jenderal Soedirman University Purwokerto 53123 Indonesia Food Science and Technology Jenderal Soedirman University Purwokerto 53123 Indonesia
出 版 物：《Journal of Life Sciences》 (生命科学（英文版）)
年 卷 期：2011年第5卷第12期
页 面：1022-1029页
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 081302[工学-建筑设计及其理论] 0813[工学-建筑学]
主 题：Bio-ethanol bacterial concentration incubation time Nypafruticans Saccharomyces cerevisiae
摘 要：Nipah （Nypafruticans） is a species of palm trees that grows in mangroves environment near the sea shore. Nipah is potential to produce biofuel energy. The purposes of this research were 1） to determine the optimum bacterial concentration for fermentation to produce high concentration of bio-ethanol, and 2） to determine the optimum incubation time for fermentation to produce high concentration of bio-ethanol. The research had been conducted from June until November 2009 using nipah sap as the substrate and Saceharomyces cerevisiae as a fermentation starter. The experimental design used was a randomized block design （RBD）. Factors tested were starter concentration （5%, 7.5%, 10%） and incubation time （2, 4, 6 days）. The variables observed were concentration of reducing sugar, total microorganism （CFU/mL）, and bio-ethanol production. The results showed that the highest yield of bio-ethanol （8.98%） was produced with 7.5% of starter concentration and 6 days of incubation time.
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