电子束辐照对饼粕类饲料中抗营养因子的影响

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。

Effect of Electron Beam Irradiation on Anti Nutrition Factors in Cake Meal Feed

To investigate the inhibitory effect of electron beam irradiation on anti nutritional factors in cake meal feed,we studied electron beam irradiation effects of soybean antigen,glucosinolate and its hydrolysis products,phytic acid,tannins,free gossypol at the dose of 1,2,3,5,7,9 kGy,which used feed such as soybean meal,rapeseed meal,cottonseed meal as experimental material.The result showed the content of soybean globulin,glucosinolate and its hydrolysis products,phytic acid,tannins,free gossypol in the cake meal feed could be effectively reduced by electron beam irradiation.The content of soybean protein could be reduced 22.63％ at 3 kGy electron beam irradiation,isorhodanic ester decreased 17.17％ at 7 kGy,oxazolidone,glucosinolate,tannins,free gossypol decreased respectively 14.17％,15.83％,18.18％,13.17％ at 9 kGy respectively.But the effect on β-conglycinin and trypsin inhibitor was not obvious.This study provided reference for the application of electron beam irradiation in cake meal in order to inhibit the content of anti nutritional factors.