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低密度聚乙烯的生物降解由血激活的Bacillus菌株

Sang Hye Ji¹, Seungryul Yoo², Seungil Park¹

¹Plasma Bio Research Division, Institute of Plasma Technology, Korea Institute of Fusion Energy, 37 Dongjansan-ro, Gunsan City, Jeollabuk-do, 54004, Republic of Korea.

|November 29, 2023

概括

研究人员使用Bacillus safensis BS-10L细菌增强了塑料的降解. 冷等离子处理提高了细菌的效率,增加了低密度聚乙烯 (LDPE) 的质量损失和表面损伤,以改善生物降解.

科学领域:

微生物学与环境科学微生物学与环境科学
生物技术和材料科学生物技术和材料科学

背景情况:

微生物塑料生物降解为传统废物管理提供了一个可持续的替代方案.
低密度聚乙烯 (LDPE) 是一种持久性环境污染物,因为它具有反抗性.
现有的微生物降解方法往往面临效率和机理理解的局限性.

研究的目的:

隔离和识别能够降解低密度聚乙烯 (LDPE) 的细菌.
研究低温等离子体处理对细菌LDPE降解的协同效应.
阐明增强生物降解的潜在机制.

主要方法:

使用培养和16S rRNA测序对塑料降解细菌的查.
全基因组测序用于细菌的鉴定 (Bacillus safensis BS-10L).
将低温等离子体应用于细菌,随后通过质量损失,表面形态,FTIR和XPS对LDPE薄膜降解进行分析.

主要成果:

鉴定出Bacillus safensis BS-10L是一种有效的LDPE殖民者和降解剂.
低温等离子治疗显著增加了细菌种群,活力和LDPE降解效率.
激活在等离子体中的细菌诱导了表面变化 (裂,孔) 和增加了LDPE中的碳基组形成,表明氧化增强.

结论:

与原生菌株相比,血激活的Bacillus safensis BS-10L表现出加速的LDPE分解.
低温等离子体技术是提高微生物塑料降解能力的有希望的方法.
这项研究突出了改善塑料垃圾环境整治的新策略.

关键词:

贝西卢斯·萨芬西斯 (Bacillus safensis) 是一个安全的菌株.在LDPE生物降解过程中.血技术的技术是什么

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