摘要
对玉米-豆粕型日粮进行混菌固态发酵,以去除其中的抗营养因子。研究结果表明,发酵饲料的抗原蛋白发生了大幅的降解,发酵后蛋白质相对分子质量主要集中在18 kDa以下,小于5 kDa的小分子肽含量从发酵前的1.35%提高到了3.60%,蛋白质的体外消化率提高了4.0个百分点。发酵饲料的棉子糖家族寡糖被彻底降解,其淀粉含量降低了3.5个百分点,直链淀粉含量提高了4.13个百分点,有益的代谢产物乳酸等有机酸的含量达到2.78%,pH下降至4.43。
Corn-soybean meal diet was fermented by mixed strains via solid state fermentation to remove the anti-nutrient factor.The results showed that antigen proteins in fermented feed were degraded sharply.The relative molecular weight of proteins after fermentation were gathered below 18 kDa,and peptides below 5 kDa were increased from 1.35% to 3.60%,accordingly the protein digestibility in vitro was increased 4.0%.Besides,raffinose family oligosaccharides were degraded thoroughly,while the starch content decreased 3.5%,the amylose increased 4.13%,organic acids content including lactic acid reached to 2.78%,and the pH decreased to 4.43.
出处
《中国油脂》
CAS
CSCD
北大核心
2012年第3期27-30,共4页
China Oils and Fats
基金
江苏高校优势学科建设工程资助项目
教育部新世纪优秀人才支持计划(NCET-08-0790)
关键词
玉米
豆粕
微生物
发酵
corn
soybean meal
microbe
fermentation
