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使用纯化的Streptomyces MS2A细胞质用于生产生物乙醇的性液体辅助的细胞生物质预处理
Ashwini J John1, Ethiraj Selvarajan1
1Department of Genetic Engineering, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India.
International journal of biological macromolecules
|May 13, 2024
概括
这项研究提出了一种有效的方法,用于生产生物乙醇,使用离子液预处理纤维素生物质. 纯化的细胞酶可以有效地分解预处理的水和小麦,以获得高的乙醇产量.
科学领域:
- 生物技术是生物技术.
- 生物化学工程 生物化学工程
- 可再生能源可再生能源是可再生能源.
背景情况:
- 从纤维素生物质生产生物乙醇对于可持续能源至关重要.
- 将复杂的纤维素结构高效地分解成简单的糖是关键的挑战.
- 离子液的预处理为纤维素水解提供了一个具有成本效益的解决方案.
研究的目的:
- 用于通过离子液处理的纤维素生物质的催化水解来生产生物乙醇.
- 为了净化和表征来自Streptomyces sp.的细胞酶酶. 有效生物质分解的MS2A.
- 分析纯化的细胞酶的动力和热力学特性.
主要方法:
- 使用超过和凝透色谱法净化纤维酶.
- 对酶动力学 (Km,Vmax) 和热力学 (ΔH,ΔS,ΔG) 的分析.
- 用EMIM[OAC]离子液预处理大米和小麦,然后用Saccharomyces cerevisiae进行催化水解和发酵.
主要成果:
- 两个阶段的细胞酶净化产生了6.28和12.44的净化折叠.
- 纯化的细胞质在40°C和pH 7时表现出最佳活性,具有特定的动力参数 (Km,Vmax,催化效率).
- 经过离子液处理的生物质显示出高的催化水解产量,导致显著的生物乙醇生产 (23.43 g/l来自米, 24.28 g/l来自小麦).
结论:
- 离子液的预处理与纯化的细胞酶相结合,是高产生物乙醇生产的有效策略.
- 鉴定出来的细胞酶显示出在基纤维素生物提炼中工业应用的潜力.
- 这种方法有助于从农业废物中生产可持续的生物能源.
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