动物营养学报Issue(2)：524-530,7.DOI:10.3969/j.issn.1006-267x.2016.02.026
蒸汽爆破技术对棉籽粕中游离棉酚脱毒效果研究
Detoxification Effect of Steam Explosion Technology on Free Gossypol of Cottonseed Meal
摘要
Abstract
This experiment was conducted to study the detoxification of steam explosion technology on free gossypol content of cottonseed meal.Seven treatments were exploded to commercially available cottonseed meal, which water material ratio was 0, 30%and 50%and retention time was 10, 20 and 30 s per ratio of wa-ter to material, except only 30 s was exploded on 0 water material ratio ( control) , the steam pressure was kept at 2.0 MPa for all treated cottonseed meal.Each treatment had three replicates.The content of free gossypol and protein solubility were analyzed for choosing a better steam exploded treatment, and then the amino acid con-tent, and nutrient digestibility in vitro by simulative digestion system of pig were analyzed.The results showed that the detoxification efficient of free gossypol and protein solubility were increased with steam retention time increased, and they were firstly increased then decreased with the water material ratio increased.So according to free gossypol content and protein solubility, water material ratio of 30%, steam pressure of 2.0 MPa for 30 s was the better steam explosion treatment, which could remove 87.0%of free gossypol content to 85.0 mg/kg in cottonseed meal, and decrease protein solubility to 42.3%.Compared with the control group, steam explo-sion significantly decreased lysine content and arginine content ( P<0.01) , and significantly decreased the di-gestibility of crude protein and lysine in vitro ( P<0.01) , but had no significant effect on the digestibility of dry matter and gross energy in vitro ( P>0.05) .In conclusion, steam explosion treatment can decrease the content of free gossypol, protein solubility, lysine content, arginine content, crude protein digestibility and lysine di-gestibility in vitro.Water material ratio of 30%, steam pressure of 2.0 MPa for 30 s is chosen as the better steam explosion treatment.关键词
蒸汽爆破/棉籽粕/游离棉酚/蛋白质溶解度/仿生消化系统Key words
steam explosion/cottonseed meal/free gossypol/protein solubility/simulative digestion system分类
农业科技引用本文复制引用
王清华,贺永惠,鲁红伟,刘兴友..蒸汽爆破技术对棉籽粕中游离棉酚脱毒效果研究[J].动物营养学报,2016,(2):524-530,7.基金项目
河南省现代农业产业体系---生猪产业体系（ S2012-06-02）；国家级大学生创新训练项目 （）
