对生产生物乳化剂的Acinetobacter Y-1进行选,隔离和过程优化
Hui Wei1, Fu-Rong Yao1, Ou-Ying Li1
1College of Food Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei, 066000, PR China.
概括
亚辛菌Y-1从活性污泥中产生一种高效的生物乳化剂. 优化发酵显著增加了产量,证明了可持续工业应用的潜力.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 环境科学 环境科学
背景情况:
- 生物乳化剂对于可持续的工业过程至关重要.
- 优化生物乳剂生产对于其广泛应用至关重要.
研究的目的:
- 隔离和识别能够生产高性能生物乳化剂的微生物菌株.
- 为了优化发酵条件,提高生物乳化剂产量.
- 描述产生的生物乳化剂的特性和稳定性.
主要方法:
- 从活性污泥中分离和选27种菌株.
- 使用乳化指数 (EI) 和评级识别有前途的Y-1菌株.
- 通过形态,生化和16S rDNA测序 (Acinetobacter) 来识别Y-1菌株.
- 使用单因素实验和响应表面方法来优化发酵.
主要成果:
- 菌株Y-1表现出极好的乳化活性 (EI 65%) 对液态和原油.
- 最佳的发酵条件:C/N比为1:1,2%的注射剂,34°C.
- 最大化生物乳化剂产量达到6.9g/L,增加了4.14倍.
- 该生物乳化剂在广泛的温度,盐度和pH值范围内展示了广泛的基质适用性和稳定性.
结论:
- Acinetobacter Y-1是高活性,稳定的生物乳化剂生产的有希望的来源.
- 优化发酵显著提高了生物乳化剂产量.
- 生物乳化剂的强度表明,生物乳化剂在各种工业应用中具有重大潜力.
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