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IMPROVING FISH FEED BY YEAST SOLID STATE FERMENTATION

Author(s)
JAVED IQBAL QAZI Microbial Biotechnology Lab., Department of Zoology, University of the Punjab,Lahore-54590,Pakistan
SARA MUMTAZ Microbial Biotechnology Lab., Department of Zoology, University of the Punjab,Lahore-54590,Pakistan
HAFIZ ABDULLAH SHAKIR Microbial Biotechnology Lab., Department of Zoology, University of the Punjab,Lahore-54590,Pakistan
Abstract
A formulated fish feed was fermented employing two strains of Saccharomyces cerevisiae in solid state fermentation (SSF) at their corresponding optimized growth conditions. The strain Sn-1Y enhanced protein content of fermented feed up to 31.68% after 72 hours. While Sn5Y showed increase of protein content up to 32.90% after 48 hours. Total carbohydrate content of the feed showed a declining trend up to 54.54% for Sn-1Y and 55.39% in case of Sn-5Y after 168 hours of fermentation. Maximum reduction (42.50 and 16.25%) of free amino acids occurred for Sn-1Y and Sn-5Y after 72 and 48 hours of incubation, respectively. The present study showed that the fermentation of the fish feed by S. cerevisiae may improve its quality. Application of such feeds may economize the development of aquaculture in this country.
Publication Details
Page(s) 21-29
DOI DOI not available
Published Journal: Punjab University Journal of Zoology, Volume: 26, Issue: 1, Year: 2011

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Keywords
Saccharomyces cerevisiae, Fish feed, yeast fermentation, feed protein content, feed amino acid content.
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