Bioethanol production from Gracilaria verrucosa, a red alga, in a biorefinery approach

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• 作者：Savindra Kumar^a ; Rishi Gupta^b ; Gaurav Kumar^a ; Dinabandhu Sahoo^a ; ; Ramesh Chander Kuhad^b ; ^{kuhad85@gmail.com} ; ^{dbsahoo@hotmail.com}
• 关键词：Biorefinery ; Ethanol ; Gracilaria verrucosa ; Algal pulp ; Mass balance
• 刊名：Bioresource Technology
• 出版年：2013
• 出版时间：May, 2013
• 年：2013
• 卷：135
• 期：Complete
• 页码：150-156
• 全文大小：763 K

文摘

In this study, Gracilaria verrucosa, red seaweed has been used for production of agar and bioethanol. The algae harvested at various time durations resulted in extraction of ¡«27-33 % agar. The leftover pulp was found to contain ¡«62-68 % holocellulose, which on enzymatic hydrolysis yielded 0.87 g sugars/g cellulose. The enzymatic hydrolysate on fermentation with Saccharomyces cerevisiae produced ethanol with an ethanol yield of 0.43 g/g sugars. The mass balance evaluation of the complete process demonstrates that developing biorefinery approach for exploiting Gracilaria verrucosa, a red alga, could be commercially viable.