微生物固体发酵转化水生植物的研究

Solid-state Fermentation of Aquatic Macrophyte

采用黑曲霉、绿色木霉和耐热克鲁维酵母发酵芦苇叶和浮萍原料,研究植物原料中粗蛋白含量的变化以及纤维素酶活的变化。研究结果表明,在水生植物原料中接种7%的黑曲霉和3%的热克鲁维酵母进行共发酵的效果最佳,发酵后芦苇叶原料和浮萍原料中粗蛋白含量分别提高了8.58倍和3.64倍;黑曲霉与耐热克鲁维酵母共发酵时其降解纤维素的能力显著提高。有望利用该工艺发酵这两种水生植物生产蛋白饲料。

Phragmites communis and Lemna The effects of single strain fermentation and minor L inn were used for solid-state fermentation to produce single cell protein. mixed strains fermentation of aquatic macrophyte on yields of its crude protein and cellulose activities were analyzed. Results showed that the highest yield of crude protein was obtained from cofermentation by Aspergillus niger at initial inoculum 7% and Kluyveromyces thermotolerans at initial inoculum 3%. The yield of P. communis and L. minor were increased by 8.58 and 3.64 folds. Results indicated that the cellulose activity of A. niger in co-fermentation was higher than that in single strain fermentation. It could be a good way to ferment the aquatic macrophytes to produce protein feed.