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在微生物发酵中作为多功能增强剂的可溶性氨酸.

Zhiqiang Sun1, Chunyan Zhang1, Yitong Wang1

  • 1Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs; Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass, Institute of Biomass Engineering, South China Agricultural University,Guangzhou510642,P.R. China.

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溶性红素通过缓冲pH值,清除活性氧物种和化重金属来增强微生物发酵. 这种适应pH值的可回收材料提高了利用农业残留物的生物制造效率.

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生物化学生产的生化生产.微生物发酵微生物发酵多功能增强器多功能增强器响应pH的可回收性可溶性红素 (lignin) 是一种可溶性的红素.

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科学领域:

  • 生物技术和生物制造
  • 可持续化学 可持续化学
  • 微生物发酵 微生物发酵

背景情况:

  • 微生物发酵纤维素是可持续生物制造的关键,但受到环境压力因素的限制.
  • 素是基纤维素加工的主要副产品,是未充分利用的资源.
  • 开发减轻发酵抑制剂的方法对于高效的生物处理至关重要.

研究的目的:

  • 研究可溶性红素对微生物发酵过程的影响.
  • 探索可溶性红素减轻环境压力因素的机制.
  • 评估发酵中的可溶性红素的可回收性和可重复使用性.

主要方法:

  • 可溶性红素是通过性溶解和透析从酶性水解红素中制备的.
  • 系统评估了可溶性红素对三种不同微生物发酵的影响.
  • 分析了包括pH缓冲,活性氧物种 (ROS) 清理和重金属化在内的作用机制.

主要成果:

  • 溶解的红素有效缓冲发酵的pH值通过碳基质子.
  • 它通过基基组清除ROS,减少微生物无活化.
  • 通过协调,可溶性素合重金属 (Pb2+,Cd2+) 通过协调,降低毒性.
  • 该材料证明了pH响应的可回收性,可回收和重复使用超过10个周期,性能持续.

结论:

  • 可溶性红素通过物理化学协同作用普遍增强微生物发酵.
  • 它提供了一种可持续的战略,以克服发酵的局限性并改善生物制造.
  • 这项研究为优化基于纤维素的发酵和价值化的素提供了基础.