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Ewa Liwarska-Bizukojc¹, Przemysław Bernat², Anna Jasińska²

¹Institute of Environmental Engineering and Building Installations, Lodz University of Technology, Al. Politechniki 6, 90-924 Lodz, Poland.

The Science of the total environment

|July 11, 2023

概括

生物基塑料,包括多乳酸 (PLA) 和多基酸-协酸 (PHBV),对的繁殖产生负面影响,并增加催化酶活性. 对于评估生物基塑料对环境的影响,建议使用地的繁殖和催化酶活性.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
生物技术是生物技术.

背景情况:

全球生物基塑料市场正在扩大,需要进行环境影响评估.
地 (Eisenia andrei) 是陆地生态系统的重要生物指标.
了解生物塑料对土壤有机体的影响对于生态风险评估至关重要.

研究的目的:

评估三种新型生物基塑料对土虫Eisenia andrei的长期影响.
评估对虫死亡率,体重,繁殖和氧化应激反应的影响.
为了确定甲基酶 (CAT) 和超氧化物脱酶 (SOD) 作为生物标志物的有效性.

主要方法:

长期暴露的实验与虫Eisenia andrei.进行了长期暴露.
测试两种基于聚乳酸 (基于PLA) 的塑料和一种基于聚基酸-协同酸盐 (基于PHBV) 的塑料.
测量地的死亡率,体重,繁殖和抗氧化酶活动 (CAT,SOD).

主要成果:

没有观察到对死亡率或人体质量的显著影响,即使在12.5%重/重度下也是如此.
在所有测试的生物基塑料中,地的繁殖量显著减少,为12.5%w/w.
基于PLA的塑料比基于PHBV的塑料对生殖产生更强的负面影响.
在暴露于生物塑料的虫中,催化酶 (CAT) 活性显著增加 (16-84%),这表明氧化应激.
CAT活动被证明是生物塑料诱导的细胞反应的敏感指标.

结论:

的繁殖能力是评估生物塑料生态毒性的敏感终点.
催化酶活性作为氧化应激诱导生物基塑料在中可靠的生物标志物.
推进行繁殖和CAT活动,以评估生物塑料对的环境影响.

关键词:

生物基塑料是生物基塑料.土虫土虫是一种虫.氧化应激是一种氧化应激.生殖生殖的繁殖土壤土壤土壤.

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