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- Title
HIGH YIELD OF ETHANOL FROM WASTE APPLE JUICE by IMMOBILIZED CELLS OF Saccharomyces cerevisiae S-3S ON SUGAR CANE BAGASSE IN FED BATCH SYSTEM.
- Authors
Tahir, Arifa; Sarwar, Sidra
- Abstract
The aim of present study was the effective utilization of waste apple for high yield of ethanol using immobilized cells of Saccharomyces cerevisiae S-3S through fed-batch fermentation. Low cost biomaterial was also developed for immobilization. Immobilization was carried out on different inert supports (agar-agar, k-carrageenan, Ca-alginate, sugar cane bagasse and apple bagasse). The results revealed that immobilized cells of S. cerevisiae S-3S gave high yield of ethanol as compared to free cells. Maximum ethanol (9.5% v/v) was produced with S. cerevisiae S-3S immobilized cells on sugarcane bagasse. The effects of different glucose concentration feeding rates on ethanol fermentation were investigated for fed batch culture. The fed batch culture at 40% glucose concentration feeding rate was proven to be a better fermentation system than the batch culture. Our findings suggest that fed-batch fermentation improves the efficiency of ethanol production in terms of ethanol concentration and product yield.
- Subjects
ETHANOL; APPLE juice; IMMOBILIZED cells; SACCHAROMYCES cerevisiae; BAGASSE; FUNGI
- Publication
Environmental Engineering & Management Journal (EEMJ), 2017, Vol 16, Issue 9, p1867
- ISSN
1582-9596
- Publication type
Article
- DOI
10.30638/eemj.2017.204