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KMID : 0359320010410030387
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Korean Journal of Veterinary Research
2001 Volume.41 No. 3 p.387 ~ p.393
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Hygiene of fish feed. ll. Effect of gamma radiation and butylated hydroxyanisole on the chemical composition and lipid oxidation of fish feed
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김성호/Kim, Sung Ho
변명우/조성기/오헌/김세라/이해준/Byun, Myung Woo/Jo, Sung Kee/Oh, Heon/Kim, Se Ra/Lee, Hae June
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Abstract
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The chemical composition of fish feeds(mackerel, gizzard shad, shrimp and formula feed) were analyzed and compared with those of untreated and irradiated (5kGy) feeds, and the effects of gamma irradiation (5 kGy) and butylated hydroxyanisole (BHA, 200ppm) on feeds spoilage were investigated by determination of thiobarbituric acid (TBA) value and peroxide value for 14 days at 20(C, 4(C or -20(C. Crude protein, crude lipid, crude fiber, crude ash and nitrogen free extract were not significantly changed by gamma irradiation with the dose of 5 kGy. Immediately gamma irradiation increased the initiative oxidation of feeds as expected. But BHA was found to be greatly effective in minimizing the radiation-induced peroxidation (p<0.05). The TBA value and peroxide value increased with the elapse of the storage period. The level of lipid oxidation was increased depending on the rise in storage temperature. But the additions of BHA inhibited the lipid oxidation (p<0.05).
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KEYWORD
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gamma-radiation, chemical composition, lipid oxidation, butylated hydroxyanisole (BHA), fish feed
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