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来自猪的无氧消化废水中的溶解有机物对Chlorella sp.的抑制作用. :生理和转录基因反应

Zhiqiang Gu¹, Yuhuan Liu¹, Liandong Zhu²

¹State Key Laboratory of Food Science and Resources, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang, Jiangxi 330047, PR China.

|May 24, 2025

概括

猪废水中的溶解有机物 (DOM) 对微藻生长具有剂量依赖的抑制作用. 特定的DOM组件促进生长,而其他组件则抑制生长,为优化生物处理提供了目标.

科学领域:

环境生物技术环境生物技术
水生微生物学水生微生物学
生物修复是一种生物修复.

背景情况:

猪的无氧消化废水 (PMADE) 带来了环境挑战.
基于微藻的生物处理是PMADE管理的可持续解决方案.
在PMADE中溶解的有机物 (DOM) 影响微藻生理学,但机制尚不清楚.

研究的目的:

研究DOM从PMADE对微藻生长的抑制作用.
确定负责促进或抑制生长的特定DOM组件.
阐明DOM对微藻的影响背后的机制.

主要方法:

从PMADE中层提取DOM,将其分成不同的分数.
针对DOM分量的选,以确定它们对Chlorella sp.的影响. 增长. 增长. 增长. 这就是增长.
分析生理反应,包括活性氧物种 (ROS) 生产,光合作用和DNA损伤.

主要成果:

DOM对Chlorella sp.的一个抑制作用观察到,中等度促进生长,高度抑制生长.
低分子量酸,化合物 (二) 和抗氧化剂活性化合物促进了生长.
类,类,酸和富尔维酸表现出度依赖的作用,通过诱导ROS和破坏DNA来抑制更高水平的生长.

结论:

这项研究揭示了DOM度,成分和微藻生长之间的复杂剂量反应关系.
特定的DOM成分,如二和抗氧化化合物,可以被利用来增强PMADE的微藻生物处理.
针对性地去除抑制性DOM分数 (例如,,类) 对于优化PMADE生物处理效率至关重要.

关键词:

布式提取法布式提取法溶解的有机物质是有机物质.霍尔梅西斯 (Hormesis) 是一个微藻类是一种微藻类.氧化还原平衡 (redox homeostasis) 是一种

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