通过g-C3N4-L从林氏纤维素化物中有效地生产1,3-二醇. 雷特里照明驱动的生物混合系统
Peng Teng1, Guojie Song2, Yifan Cao1
1Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta T2N 1N4, Canada.
Bioresource technology
|August 12, 2025
概括
使用石墨碳化物 (g-C3N4) 和 Lactobacillus reuteri 的新型生物混合系统在光照下增强了 1,3-propanediol (1,3-PDO) 的产生. 这种可持续的方法可以利用太阳能和生物质促进微生物生物转化.
科学领域:
- 生物技术和合成生物学
- 材料科学 材料科学 材料科学
- 可持续化学 可持续化学
背景情况:
- 1,3-二醇 (1,3-PDO) 等增值化学品的微生物生物合成对于可持续的化学生产至关重要.
- 提高微生物代谢效率和能量转化是提高生物工艺产量的关键.
- 光催化材料为光驱动生物转化提供了潜力,但需要与微生物系统有效整合.
研究的目的:
- 构建和评估一个响应光的生物混合系统,将石墨碳化物 (g-C3N4) 与Lactobacillus reuteri结合.
- 通过g-C3N4/L.L.研究光照射对1,3-propanediol (1,3-PDO) 生物合成的影响. 路特里生物混合系统.
- 为了评估系统的性能,使用标准合成介质和基纤维素化物作为碳来源.
主要方法:
- 通过将g-C3N4光催化剂与L. reuteri细胞结合,制造一个生物混合系统.
- 在模拟的阳光和黑暗条件下培养生物混合系统,以生产1,3-PDO.
- 使用分析技术进行界面合和电子转移的表征.
- 测量细胞内氧化还原平衡 (NADH/NAD+) 和能量水平 (ATP).
- 测试系统的有效性,使用由糖醇预处理的麻的酶化水解剂.
主要成果:
- 在g-C3N4/L. 的. 在光照下,reuteri生物混合系统实现了1,3-PDO标位11.3g/L,比黑暗对照 (6.8g/L) 增加66%.
- 在g-C3N4和L. reuteri.之间证实了高效的电子转移和强大的接口合.
- 光驱动生物转化显著提高了细胞内NADH/NAD+比率 (98.3%的增加) 和ATP水平 (378.5%的增加).
- 该系统使用大麻的酶化水解剂表现出强大的性能,在照明下产生9.6g/L的1,3-PDO,在黑暗中为5.9g/L.
结论:
- 在g-C3N4/L. 的. 瑞生物混合系统通过光驱动的微生物生物转化有效地增强了1,3-PDO生物合成.
- 该系统优化了细胞内氧化还原平衡和能量代谢,从而提高了生产产量.
- 这种方法提供了一种可持续的策略,用于利用太阳能从纤维素生物质中生产具有附加值的化学品.
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