食品与发酵工业2012，Vol.38Issue(9)：77-83,7.
双菌分步发酵混糟制水产饲料工艺
Conversion of a Mixed Grain into Fish Feed Using a Separate Fermentation of Two Strains
摘要
Abstract
In order to make the low-cost and high-quality feed from brewers' spent grains, using the distillers' grains as an auxiliary material, the fermentation technology of Trichoderma viride was investigated with an aerobic fer- mentation installation and with the methods of Plackett-Burman and response surface. The fermentation of Rhodopseud- omonas palustri was adopted to inerease the content of protein after Trichoderma viride fermentation. With the ratio of dried brewer grains-to-dried distillers' grains set at 2. 67:1 (w/w), the mixed grains-to-water ratio set at 1 : 2.88 (w/w) , the inoculum concentration at 9.5 % (w/w) , the initial pH at 5.0, the early fermentation at 30℃for 4.82 d, the later fermentation at 50℃for 2.5d, the thickness of feedstock layer at 9 cm, and the air volume at 83.2 mL/ min, the crude cellulose content of mixed grains was decreased from 17.2 to 9.9 % (w/w). After the second fer- mentation of Rhodopseudomonas palustrl, the true protein content of mixed grains was increased from 16. 1% to 38.4% (w/w) ,the content of crude protein was increased from 21.5% to 43.9% , the crude cellulose content of mixed grains was decreased from 17.2% to 5.9% (w/w) , the fat content of mixed grains was increased from 5.7% to 8.1% (w/w) , the crude ash content of mixed grains was increased from 6.6% to 7.8% (w/w) , the total phos- phorus content of mixed grains was increased from 0.6% to 1.3% (w/w) , and the water content of the grains was 9.8% (w/w). The six indexes satisfied the China standard for tilapia' s fingerling (SC/T1025 -2004).关键词
啤酒糟/白酒丢糟/绿色木霉/光合菌/蛋白/纤维素Key words
brewers' spent grains/distillers' grains/Trichoderma viride/photosynthetic bacteria/protein/cellulose分类
农业科技引用本文复制引用
张健,张文学,龙秀琼,游玲,林娜,孙传泽,刘小彬..双菌分步发酵混糟制水产饲料工艺[J].食品与发酵工业,2012,38(9):77-83,7.基金项目
宜宾市科技局重点项目 （）
四川省教育厅资助项目 （）
