Analysis Of The Law On Nutrition And Anti-nutritional Factor In Manufacture Technics Of Soybean Meal After Extracted Isoflavone

The soybean is one kind of good plant protein resources,but also includes some kinds of anti-nutritional factors.These anti-nutritional factors have adverse impact on the process of animals digesting and utilizing the feed,at the same time,the nutritional value and the use of effects of soybeans also be reduced,When the content of anti-nutritional factors exceed the tolerance range of animals,animal's health and the performance trait will be affected.in the near years,the mainly researched anti-nutritional factors are Urea-amidohydrolase,goitrogen and soybean trypsin inhibitor,which content are high in soybean.And these three kinds of antinutritional factors have more harm to the soybean's nutritional value,palatability and animal ande human's health.Other anti-nutritional factors all have methods of wiping off in low cost, but it is difficult to wiping off,because of the espceial cause of goitrogen.In this thesis,it analyses all the manufacture technics of soybean meal after extracted isoflavone,and simulate the condition of manufacture,soybean,the ordinary soybean meal and the isoflavone extracted soybean were treated by dry heat and wet heat,there are 5,10,15, 20 min time treatment and 90,100,110,120,130,140℃temperature treatment in dry heat treatment;and wet heat involve 10,20,30,40 min time treatment and 90,95,100,105,110, 115,120℃temperature treatment.Under these conditions,the ordinary protein bean-meal and the isoflavone extracted soybean were determined urea-amidohydrolase activity,soybean trypsin inhibitor content,hemagglutinin activity and protein solubility,to determine the most suitable method of heat treatment for the rational use of soybean meal to provide the best possible parameter values.Proved by the test:The sample was dealt with the dry heat method of processing after Cleaning by the 4th of organic solvent,The scope of the best conditions130℃5～15 min,and by the wet heat method of processing,the effect was good at activity110℃40min,115℃20min 30min 40min.