期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2013
卷号：2
期号：9
页码：4803
出版社：S&S Publications
摘要：Rapid industrial expansion and development has seen increased use of fo ssil fuels all over the world. These fuels are being consumed at an alarming rate. Our dependence on the fuels and their rapid rate of depletion has called for measures to look for alternative fuels. Bio ethanol is one such renewable fuel which is gaining importance. It can be used as a substitute to, or as a blend with petrol. Lignocellulosic materials are found to be suitable for bioethanol production. Water hyacinth, an aquatic weed, grows in mo st parts of the world. The considerably lower lignin and higher cellulosic content in water hyacinth makes it a good raw material for bio ethanol production, which involves three steps, namely pretreatment, saccharification and fermentation. Pretreatment is essential to break the lignin bonds so that the cellulo se and hemi cellulose content are accessible to the micro organisms which produce the enzymes for saccharificatio n. This stud y addresses the effect of acidic and basic pretreatment on the saccharification of water hyacinth using Aspergillus niger as inoculums. Through this experiment, it was observed that acidic pretreatment is more suitable for the process. The highest yield of reducing sugars after saccharification was obtained on the second day after inoculation and was equal to 150μg/mL. The results from this study will be incorporated in the fermentation stage of the conversion process.
关键词：Water hyacinth; p retreatment; saccharification; optical density; Aspergillus niger.
