Production of ethanol from alkali-pretreated sugarcane bagasse under the influence of different process parameters

Q1 Biochemistry, Genetics and Molecular Biology Frontiers in Life Science Pub Date : 2015-05-29 DOI:10.1080/21553769.2015.1044620
M. Nadeem, Muhammad Usman Aftab, M. Irfan, Mubashar Mushtaq, A. Qadir, Q. Syed
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引用次数: 10

Abstract

The present study was designed to produce ethanol from sugarcane bagasse treated with 2.5% NaOH through a simultaneous saccharification and fermentation process using Saccharomyces cerevisiae G1. Various process parameters such as incubation temperature, incubation period, initial pH and nitrogen sources were studied to achieve the maximum yield of ethanol. The results showed that the optimum ethanol yield (5.90%) was achieved at an incubation temperature of 30°C, initial pH 5.5, inoculum size 3% (v/v), after an incubation period of 96 h. Among various nitrogen sources, ammonium sulphate was found to be the most suitable source for ethanol production. These findings indicate that the optimization of process parameters is necessary to make the fermentation process economical, and the medium designed in the present study could be exploited on a commercial scale after suitable processing.
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碱预处理甘蔗渣在不同工艺参数影响下生产乙醇
本研究以蔗渣为原料,经2.5% NaOH处理,采用酿酒酵母G1同步糖化发酵工艺生产乙醇。研究了不同的工艺参数,如培养温度、培养时间、初始pH和氮源,以达到乙醇的最大收率。结果表明,在培养温度为30℃、初始pH为5.5、接种量为3% (v/v)、培养96 h的条件下,乙醇的最佳产率为5.90%。在各种氮源中,硫酸铵是最适合用于乙醇生产的氮源。这些结果表明,优化工艺参数是使发酵过程经济的必要条件,本研究设计的培养基经过适当的处理后可以进行商业规模的开发。
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来源期刊
Frontiers in Life Science
Frontiers in Life Science MULTIDISCIPLINARY SCIENCES-
CiteScore
5.50
自引率
0.00%
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0
期刊介绍: Frontiers in Life Science publishes high quality and innovative research at the frontier of biology with an emphasis on interdisciplinary research. We particularly encourage manuscripts that lie at the interface of the life sciences and either the more quantitative sciences (including chemistry, physics, mathematics, and informatics) or the social sciences (philosophy, anthropology, sociology and epistemology). We believe that these various disciplines can all contribute to biological research and provide original insights to the most recurrent questions.
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