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标题：Fermentasi Etanol Sari Buah Semu Jambu Mete ( Anacardium occidentale ) oleh Zymomonas mobilis dengan Penambahan Urea
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作者：ETRIN SAPARIANTIN ; TJAHJADI PURWOKO ; RATNA SETYANINGSIH 等
期刊名称：Bioteknologi
印刷版ISSN：0216-6887
出版年度：2006
卷号：3
期号：2
页码：50-55
DOI：10.13057/biotek/c030203
出版社：UNS Solo
摘要：Cashew present in abundant amount in Indonesia but they had not muchbeen exploited. This research was to study ethanol fermentation fromcashew juice by Zymomonas mobilis using urea as nitrogen source. Theaims of this research was to know the best urea concentration and optimumfermentation duration to produce the highest content of ethanol in ethanolfermentation from cashew juice by Z. mobilis. The urea concentration inmedia was prepared 0%; 0.2% and 0.4%. The media cashew juice + urea (100mL) was inoculated with 1 mL Z. mobilis 2x108 cell/mL. Initial pH, reducingsugar, amount of microorganism and concentration of ethanol wascalculated everyday during 3 days. It could be concluded that 0.2% of ureaproduced the highest content of ethanol that was an amount 40.51%,followed by urea 0% was 30.59% and urea 0.4% was 25.63%. The optimumfermentation duration to produce the highest content of ethanol was 2 days
关键词：ethanol fermentation; cashew juice; Zymomonas mobilis; urea;concentration.