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为了探讨电子束辐照对饼粕类饲料中抗营养因子的抑制作用,以1、2、3、5、7、9 k Gy剂量的电子束对豆粕、菜籽粕、棉籽粕等饲料进行辐照处理,研究辐照对大豆抗原、硫葡糖苷及其水解产物、植酸、单宁及游离棉酚的影响。结果表明,电子束辐照可有效降低饼粕类饲料中大豆球蛋白、硫代葡萄糖苷及其水解产物、植酸、单宁、游离棉酚等的含量,其中3 k Gy电子束辐照后,大豆球蛋白降低22.63%;7 k Gy下异硫氰酸酯降低17.17%,9 k Gy下噁唑烷硫酮、硫代葡萄糖苷、单宁、游离棉酚分别下降14.17%、15.83%、18.18%、13.17%,但电子束辐照对β-伴大豆球蛋白和胰蛋白酶抑制因子的抑制效果不显著。本研究结果为饼粕类饲料中抗营养因子的消除提供了理论参考。
In order to investigate the inhibitory effect of electron beam irradiation on the anti-nutritional factors in meal-based feedstuffs, the feedstuffs such as soybean meal, rapeseed meal and cottonseed meal were radiated with doses of 1, 2, 3, 5, 7, According to the treatments, the effects of irradiation on soybean antigens, thioglycosides and their hydrolysates, phytic acid, tannin and free gossypol were studied. The results showed that electron beam irradiation could effectively reduce the content of glycinin, glucosinolate and its hydrolyzate, phytic acid, tannin and free gossypol in the meal feed. After irradiation with 3 k Gy electron beam , While the glycinin, glucosinolate, glucosinolate and free gossypol decreased 14.17% and 15.83% respectively at 9 k Gy, 18.18% and 13.17%, respectively. However, the inhibitory effect of electron beam irradiation on β-conglycinin and trypsin inhibitor was not significant. The results of this study provide a theoretical reference for the elimination of anti-nutritional factors in the meal-based feed.