食品级塑料和双A:相关风险,毒性和生物修复方法
Preksha Palsania1, Kirti Singhal1, Mohd Ashaf Dar1
1Department of Environmental Science, School of Earth Sciences, Central University of Rajasthan, BandarSindri, Ajmer 305817, Rajasthan, India.
Journal of hazardous materials
|January 20, 2024
概括
这项研究发现食品容器中二A (BPA) 含量高,影响土壤和水生生物. 细菌分离物对生物降解BPA有希望,为更安全的塑料废物管理提供了一条道路.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 微生物学 微生物学
背景情况:
- 双A (BPA) 是一种广泛使用的工业化学物质,在环境中无处不在.
- 乙被认为是一种内分泌干扰剂,对生态系统和潜在的人类健康构成风险.
- 食品级塑料容器是BPA释放到环境中的重要来源.
研究的目的:
- 为了量化BPA度在常见的食品级塑料容器中.
- 评估BPA浸出物对代表性土壤和水生生物的生态毒性.
- 隔离和评估能够生物降解BPA的微生物.
主要方法:
- 使用U-HPLC和GC-MSMS分析BPA度.
- 对Rhizobium sp.进行生态毒性测试 (土壤) 和Chlorella sp. 这种植物. (水生). 在水中.
- 从垃圾填埋场分离细菌菌株,用于BPA生物降解研究.
主要成果:
- 黑色聚合物袋显示BPA度最高 (42.78 ppm),其次是果汁和婴儿瓶.
- BPA对Rhizobium sp.的显著负面影响 和Chlorella sp. 这两种植物. 观察到的情况.
- 布鲁塞拉 sp. 在这种情况下. 和Brevibacillus parabrevis被确定为有效的BPA降解剂,产生各种代谢物.
结论:
- 食品级塑料由于BPA的漂水而带来环境风险.
- 孤立的细菌菌株显示出BPA污染环境的生物修复潜力.
- 可持续的塑料废物管理策略对于减轻BPA污染至关重要.
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