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Improvements in Efficiency of Yeasts for Ethanol Production

Nandita Gupta
Type: Print Book
Genre: Medicine & Science, Education & Language
Language: English
Price: ₹299 + shipping
Price: ₹299 + shipping
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Submitted to the Punjab Agricultural University, Ludhiana, in partial fulfillment of the requirements for the degree of

Eight strains of yeasts, namely S. cerevisiae-220, S. cerevisiae-360, S. cerevisiae-181/3c, Trichosporon beigelli, Candida haemulonii, C. parapsilosis, Candida sp.-3(1) and Candida sp.-5(2) have been evaluated for their potential to ferment cane sugars to ethanol at three temperatures. S. cerevisiae-220 utilized 84.0% substrate in 60 h at 30 ± 1 °C. S. cerevisiae-360 fermented substrate more efficiently (69.3%) at 38 ± 1 °C. S. cerevisiae-220 multiply faster at 30 ± 1 as well as at 38 ± 1 °C.

S. cerevisiae-220 could withstand 13.0% ethanol whereas S. cerevisiae-360 tolerated only 8.0% of ethanol supplemented in the growth medium. The protoplasts of S. cerevisiae-220 and S. cerevisiae-360 fused together could not generate ethanol more efficiently than their parents at 38 ± 1 °C. S. cerevisiae-220 adapted at 38 ± 1 °C utilized 64.4% of substrate during 60 h.

Wine with commercially outstanding quality has been prepared from Zingiber officianale with S. cerevisiae-220-A at 38 ± 1 °C.

About the Author

Nandita is an avid home-maker and helps manage a school for the under-privileged.

Book Details

ISBN: 9789395766487
Publisher: Devotees of Sri Sri Ravi Shankar Ashram
Number of Pages: 108
Dimensions: 7"x9"
Interior Pages: B&W
Binding: Paperback (Perfect Binding)
Availability: In Stock (Print on Demand)

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