Bioethanol production from Gracilaria verrucosa, a red alga, in a biorefinery approach
2012; Elsevier BV; Volume: 135; Linguagem: Inglês
10.1016/j.biortech.2012.10.120
ISSN1873-2976
AutoresSavindra Kumar, Rishi Gupta, Gaurav Kumar, Dinabandhu Sahoo, Ramesh Chander Kuhad,
Tópico(s)Microbial Metabolites in Food Biotechnology
ResumoIn 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.
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