| 利用酒糟生产饲料蛋白的菌种选育 |
| 摘要点击 1947 全文点击 3498 投稿时间：1998-06-16 |
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| 中文关键词 酒糟 废料再利用 菌种选育 饲料蛋白 菌体蛋白 协同发酵 微生物饲料 |
| 英文关键词 distillers' grains reuse of distillers' grains breeding of bacteria synergistic fermentation microbial feed feed protein |
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| 中文摘要 |
| 为了提高酒糟蛋白质的含量和粗纤维的降解,本研究选择菌种30株,以白酒糟为原料筛选出优质饲料蛋白菌株8502,8503和8505三株。用微生物液体发酵法,经研究发现,以8503和8505组成的多菌发酵体系,使酒糟初始蛋白含量由23.0%,经5d发酵后,提高到37.5%,比初始酒糟蛋白质含量提高了14.5%,粗纤维含量由初始的16.3%降为14.1%,比初始酒糟含量降低2.2%.在一定的试验条件下,单菌发酵酒糟提高其粗蛋白含量最高达到30.2%,比初始酒糟蛋白质含量提高了7.0%.而多菌种协同发酵酒糟,其蛋白质含量却提高到37.5%,高出单菌种发酵酒糟7.3%,提高了近1倍。试验证明,由8503和8505组成的多菌种发酵体系转化酒糟提高蛋白质的含量明显优于单一菌种。 |
| 英文摘要 |
| High quality bacteria 8502, 8503 and 8505 were selectively bred. The study shows that the efficiencies to turn the distillers' grains into feed with rich protein by multiple bacteria synergistic fermentation are higher than those by single bacteria fermetation. Under definite experimental conditions, the efficiencies of multiple bacteria synergistic fermentation system are 7.3% higher than those of single bacteria fermentation system from 30.2% up to 37.5%, and the content of fiber is almost at the same level, about 2%.The distillers' grains have undergone fermentation for 5 days in the multiple bacteria synergistic fermentation system composed by 8503 and 8505. The protein raises from 23.0% of original wastes of distillers' grains up to 37.5%, 14.5% higher than that in original wasters, and the content of fiber is 2.2% less than original wastes, from 16.3% down to 14.1%. |
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