将聚烯再循环转化为真菌天然产品和生物控制剂
Chris Rabot1, Yuhao Chen2,3, Shu-Yi Lin1
1Department of Pharmacology & Pharmaceutical Sciences, University of Southern California, 1985 Zonal Ave, Los Angeles, California 90089 United States.
Journal of the American Chemical Society
|February 13, 2023
概括
这项研究提出了一种快速将聚乙烯塑料废物转化为酸的新方法. 工程真菌随后将这种酸转化为有价值的化合物,如ergothioneine和生物控制剂.
科学领域:
- 生物技术
- 化学工程
- 环境科学
背景情况:
- 聚乙烯 (PS) 是一种广泛使用的塑料,回收率低.
- 目前的PS降解方法效率低下,回收价值有限.
- 需要可持续和高效的塑料废物回收利用.
研究的目的:
- 开发一种快速高产的方法将聚乙烯转化为酸.
- 使用工程真菌生物合成将PS衍生的酸升级为有价值的二次代谢物.
- 扩大塑料衍生产品的范围,包括生物控制剂.
主要方法:
- 消费后聚烯的化学转化为酸.
- 使用工程真菌菌株 (Aspergillus nidulans) 进行酸生物合成升级.
- 从PS衍生的酸中生产埃尔戈氨酸,多氨酸和氨酸.
- 使用PS衍生的酸种植Aspergillus flavus Af36.
主要成果:
- 快速转化聚乙烯到酸在高产量.
- 从PS衍生的酸中成功生物合成埃尔戈氨酸,多氨酸和氨酸.
- 从PS衍生的酸中生产Aspergillus flavus Af36子
- 一个可扩展的塑料废弃物利用过程的演示.
结论:
- 开发的方法提供了一种高效且可扩展的聚乙烯降解和利用方法.
- 工程可以有效地将塑料衍生化合物转化为高价值产品.
- 这项研究为可持续的塑料废物管理和生产有价值的化学品开辟了新的途径.
相关概念视频
Overview of Fungi
85
Fungi are a diverse group of eukaryotes more closely related to animals than other eukaryotes. Fungal cell walls comprise chitin, a polysaccharide that provides structural strength, and glucans, which contribute to flexibility and integrity. Other polysaccharides, such as mannans and galactosans, may supplement or replace chitin in some fungi. These adaptations, along with their preference for acidic environments and tolerance for high osmotic pressure, enable fungi to thrive in various...
85
Fungal Group Zygomycota
73
Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...
73


