Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 18, Issue 3, 2016; Page No.(655-661)

BIOCONVERSION OF STARCHY POTATO WASTE TO ETHANOL BY SIMULTANEOUS SACCHARIFICATION AND FERMENTATION (SSF)PROCESS USING ASPERGILLUS NIGER MTCC 281 ANDSACCHAROMYCES CEREVISIAE MTCC 170

DEY PINAKI* AND WANGYAL LHAKPA

Abstract

This study shows waste potato starch as potential feedstock for microbial single vessel SSF process for ethanol production using amylolytic fungi Aspergillus niger MTCC 281 and Saccharomyces cerevisiae MTCC 170. The modified single vessel process of combining two separate processes in one vessel was successful in producing maximum ethanol yield of about 15.85% (v/v) from 100 g/L dry waste potato powder using 12% (v/v) of Aspergillus niger and 12% (v/v) of Saccharomyces cerevisiae at 30 OC in shaker incubator, at 150 rpm for five days. The SSF process is economical, greener, safer, and sustainable as it is based on use of renewable and biological resources for production of bioethanol. This economical process could be a new biotechnological innovation as it can be efficiently implemented in industrial bioethanol production.

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