全球转录学揭示了食品废物的碳足迹在环保聚合物的生物转化中
Tianzheng Liu1, Kaiming Ye1, Sha Jin1
1Department of Biomedical Engineering Thomas J. Watson College of Engineering and Applied Science Binghamton University, State University of New York (SUNY), Binghamton, NY 13902, USA.
Bioresource technology
|May 25, 2025
概括
这项研究介绍了一种生物工艺,将食物废弃物转化为乳酸和聚乙酸 (PHB),一种生物降解的聚合物. 该方法适用于工业用途,并通过食品废物再循环获得高PHB含量.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 聚合物科学 聚合物科学
背景情况:
- 食品废弃物对环境污染和温室气体排放作出了重大贡献.
- 将食物废弃物再循环转化为有价值的产品对于可持续的废物管理至关重要.
- 生物降解的聚合物,如聚乙酸 (PHB),为传统塑料提供环保的替代品.
研究的目的:
- 开发一种强大的生物工艺,将食品废弃物再循环转化为乳酸,随后生产聚酸酸盐 (PHB).
- 调查储存食品废弃物的可行性,而不影响其生物转化效率.
- 为了优化发酵条件以最大限度地提高PHB生产,使用特定的营养来源.
主要方法:
- 食品废物的本土发酵产生乳酸.
- 使用转录组和基因组丰富分析进行微生物群分析.
- 使用乳酸和不同源 (硫酸与酸) 种植Cupriavidus necator.
主要成果:
- 在食品废弃物发酵过程中,生产乳酸的微生物被确定为主要的微生物.
- 储存食物废弃物并没有对其生物转化为乳酸产生负面影响.
- 在Cupriavidus necator中使用硫酸与乳酸显著提高PHB生物合成和相关代谢途径的调节,在生物质中达到约90%的PHB含量.
结论:
- 开发的生物工艺有效地将食物废弃物转化为乳酸和高产PHB.
- 这些发现为工业规模的食品废弃物再利用和可持续的生物聚合物生产提供了关键的见解.
- 优化的营养来源提高了从食物中获得的碳来源的PHB生物合成的效率.
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