大豆发芽过程中抗营养因子的变化

大豆蛋白存在着胰蛋白酶抑制因子和凝集素等抗营养因子,影响人类对其的利用。文中采用分光光度法和免疫火箭电泳法测定了发芽过程中东农42、东农823、71434、40567、黑农40五个大豆品种中胰蛋白酶抑制因子和凝集素的含量变化。结果发现:发芽能明显改变大豆中抗营养因子的含量,不同品种的抗营养因子变化程度不同,5种大豆在发芽过程中显示出较为一致的总体趋势。发芽温度对大豆中胰蛋白酶抑制因子的含量有影响。证实在萌发的大豆中存在可失活大豆抗营养因子的内源酶。

Changes of Antinutritional Factors in the Soybean Germination Process

The use of soybean protein was influenced by antinutritional factors.This research using spec- trophotometry and immunity rocket electrophoresis determined contents of trypsin inhibitors and lactins dur- ing the germination in Dongnong42,Dongnong823,71434,40567 and Heinong 40.The results were as fol- lows:Germination could greatly change the contents of antinutritional factors in the soybean seeds.The changing extent was varied among cultivars.There are similar trends in five soybean cultivars.The tempera- ture of germination effects on the contents of antinutritional factors in the soybean seeds.The endogenous proteinase of specially inactivating antinutritional factors in soybeans had been proved.