Author:
Stephens N L,Bough W A,Beuchat L R,Heaton E K
Abstract
Two peptones were extracted from raw shrimp waste after autolytic digestion. Digests were derived from shrimp heads and shrimp hulls, both of which are by-products of the shrimp processing industry. Digests were evaluated for suitability in supporting growth of microorganisms by measuring the total cell mass produced by five genera of bacteria and five genera of fungi in broths formulated from the peptones. Comparison was made to five commercially available medium preparations and a catfish peptone. A 0.5% solution of the lyophilized shrimp head digest, heated at 121 C for 15 min, resulted in a cloudy suspension. However, the digest supported excellent growth of fungi and good growth of bacteria. A heated 0.5% solution of the hull digest was clear and supported good growth of both bacteria and fungi.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
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