Browsing by Subject "Quality assurance"
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Conference paper- 1996 - Aquaculture Department, Southeast Asian Fisheries Development CenterRelative effects of the combination of tert-butylhydroquinone (TBHQ) and propyl gallate (PG) with or without a sequestering agent (EDTA or citric acid, C A ) on rancidity development in minced sprats stored at -15 C were determined by following the changes in peroxide values, thiobarbituric acid values, sensory scores, and fatty acid composition of lipid extracts. The combination of 0.02% TBHQ and 0.02% PG was most effective in reducing the rate of oxidative rancidity development in frozen sprats. It allowed an extended induction period of at least 250 days. Lowering the concentration of the additives from 0.02% to 0.01% significantly reduced their antioxidant effectiveness giving rise to larger losses of polyunsaturated fatty acids. Addition of either EDTA or CA to the mixture of 0.02% TBHQ and 0.02% PG did not prevent significant losses of 20:5 and 22:6 fatty acids.
Conference paper- In J Muir & F Sevila (Eds.), Measures for Success. Abstracts of contributions presented at the International Conference Bordeaux Aquaculture '94, 23-25 March 1994, Bordeaux, France, 1996 - European Aquaculture Society. EAS Special Publication No. 21