Elimination of Free Gossypol in Cotton Seed Meal (Gossypium herbaceum) - A Preliminary Study
Elimination of Free Gossypol in Cotton Seed Meal (Gossypium herbaceum) - A Preliminary Study
Date
1998
Authors
Usmani, Nazura
Jafri, A.K
Alvi, A.S
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Analysis of mechanically extracted cotton seed meal {Gossypium herbaceum)
showed that it was good source of crude protein (23.9%). It contains 0.5% crude
fat, 21.76% crude fiber, 9.28% moisture and 4.64% ash. Gossypol content in the
meal was found to be 0.54%. Among the various methods tested for the elimination
of gossypol, water treatment following solvent extraction was found to eliminate
98-99% of this anti-nutritional substance. Autoclaving at 10 and 15 lb. for 15 min
removed 20-25% of gossypol, whereas autoclaving at the same pressure for 10 min
removed 10-12% of gossypol. Heating the meal in hot air oven at 60, 80, 100oC
removed 9, 10 and 12% of gossypol, respectively while microwave roasting at full
and high power for 2 min removed only 5-8% of gossypol
Description
Keywords
Gossypol, cotton seed meal, fish feed
Citation
Fishery Tech 35(1):13-17