优化乙醇发酵过程使用水热预处理纤维素废物-发酵模式和菌株的影响
Jun Zhou1, Pin Lv2, Binsheng He1
1School of Management, Changsha Medical University, Changsha 410219, China.
Molecules (Basel, Switzerland)
|November 27, 2024
概括
优化废纸的热水预处理显著增加了纤维素含量和糖产量. 与混合酵母培养相比,单独的Saccharomyces cerevisiae实现了更高的乙醇产量.
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:
- 发酵基质和发酵方式对于提高乙醇产量至关重要.
- 废纸纸为生物燃料生产提供了潜在的纤维素原料.
研究的目的:
- 使用直角设计优化废纸纸的热水预处理条件.
- 评估不同发酵模式和微生物联盟的效率,以从预处理的废纸组织纸生产乙醇.
主要方法:
- 水热预处理的直角优化 (50分钟,160°C,水溶剂).
- 在预处理后分析纤维素含量和降低糖的产量.
- 使用Saccharomyces cerevisiae (S) 和Saccharomyces cerevisiae和Candida shehatae (SC) 的混合培养的发酵试验.
主要成果:
- 优化的预处理产生了81.19%的纤维素,增加了21.59%.
- 减少糖的产量达到0.61g/g纸,比未经处理的纸高38.64%.
- 单个Saccharomyces cerevisiae发酵实现了35.15g/L的乙醇,超过了混合SC培养 (28.11g/L).
结论:
- 水热预处理有效地提高了废纸纸的糖化.
- 在测试条件下,Saccharomyces cerevisiae是一种更有效的单一培养物,可以从这种基板生产乙醇.
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