GRANT
NO:
NA67FD0035
NMFS NUMBER: 95-SER-026
REPORT
TITLE: The Effects of Phosphates on the Moisture
Content of Commercial Shrimp and Their Use to Improve
the Quality and Shelf Life of Frozen Breaded Shrimp
AUTHOR:
Gates, Keith, and Lyda, Fred
PUBLISH
DATE: August 10, 1998
AVAILABLE
FROM: National Marine Fisheries Service,
Southeast Region, 9721 Executive Center Drive, St Petersburg,
FL 33702. TELEPHONE: (813) 570-5324
ABSTRACT

The project
sought to evaluate the moisture retention and nutritional
effects on shrimp treated with sodium tripolyphosphate.
Dehydration of frozen shrimp and moisture migration from
shrimp to breading in frozen breaded shrimp is a commercial
problem. The use of sodium tripolyphosphate is believed
to alleviate these problems but is currently prohibited
by the FDA. The project was carried out to provide better
information for the FDA for future decisions regarding
the use of phosphate. The research found that shrimp treated
with a 4.0% solution of sodium tripolyphosphate plus a
1.5% solution of NaCl produced the greatest weight gains
due to water in shrimp prior to freezing. Phosphate treatment
also helped reduce moisture migration from shrimp into
breading during frozen storage. The sodium tripolyphosphate
treatments did not affect nutritional constituents in
breaded shrimp.