摘要
本文研究了用黑曲霉ＳＡ１１９和皮状丝孢酵母ＳＴ_（８５１）固态发酵淀粉渣生产饲料蛋白。ＳＡ１１９菌株在固态淀粉渣上可产生多种酶活性，并降解其中的纤维素物质，在２８±２℃的最适温度下，产生的木聚糖酶活性为２８５０．５４±３０４．２３ｕ／ｇ，半纤维素降解率为３３．９８±２．５１％。ＳＴ_（８５１）能与之很好的共生，两者混合培养使产品粗蛋白含量达到２１．４５％，氨基酸组成齐全，尤其是动物必需的第一限制性氨基酸─蛋氨酸含量在蛋白质中的比例，高出ＦＡＯ标准０．８倍。喂养试验证明，该产品可以代替部分鱼粉。毒理学试验证明该产品实属无毒，安全可靠。
Production of Protein feedstuff was studied with Aspergillus Niger SA119and Trichosporon cutaneum ST851 on the starchy waste by solid state fermentation (SSF) . SA119 strain could grow well and produce high xylanase activity on starchy waste. The best yied of the xylanase up to 2850. 54 ±304. 23u/g,degradation rate of hemicellulose was 33. 98±2. 51%. The ST851 and SA119 strains mixed culture was studied. The product contained 2 1. 45% protein,amino acid composition was complete, ratio of methionine in the protein was 1. 8 times as compared with“FAO”standard. The expreiment result of feeding pigs showed that the product could be used as protein feedstuff instead of a part import fish meal. Safety test showed that the product have not any toxity.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
1994年第1期20-23,共4页
Food and Fermentation Industries
关键词
淀粉渣
固态发酵
蛋白饲料
Starchy wast, Solid state fermentation, Protein feedstuff, Mixed culture
