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纳米塑料的高效生物吸收由食品衍生的乳酸细菌

Jisu Lee¹, Min Ji Lee¹, Mi-Ja Jung¹

¹Kimchi Functionality Research Group, World Institute of Kimchi, Gwangju 61755, the Republic of Korea.

Bioresource technology

|February 17, 2026

概括

一种食物细菌,Leuconostoc mesenteroides CBA3656,在各种条件下有效地去除纳米塑料 (NP). 这种微生物显示出减轻环境和肠道环境中的NP污染的前景.

科学领域:

环境科学环境科学
微生物学微生物学
材料科学材料科学材料科学

背景情况:

纳米塑料 (NP) 是普遍存在的环境污染物,具有潜在的人类健康风险.
对于环境修复和人类肠道健康,需要有效的NP清除策略.
能够在各种条件下去除NP的细菌尚未得到充分研究.

研究的目的:

为了研究食品衍生细菌Leuconostoc mesenteroides CBA3656.6的纳米塑料生物吸收能力.
评估CBA3656菌株在各种环境和模拟肠道条件下对纳米塑料缓解的效率.

主要方法:

在不同度,pH值和温度下评估L. mesenteroides CBA3656的NP生物吸收效率.
分析了生物吸收动力学和异温模型 (伪第一阶和兰木尔).
利用里叶变换红外光谱法 (FTIR) 来识别相互作用机制.
在模拟的肠液中评估性能,并进行体内实验.

主要成果:

菌株CBA3656在广泛的pH (3-9) 和温度 (4-55°C) 范围内表现出高的NP生物吸收效率 (10-200ppm).
生物吸收跟随伪第一阶动力学和兰木尔等温,表明物理吸收.
FTIR分析确定了参与NP结合的细胞壁/膜功能组 (PO,CO,COC).
在模拟的肠液中,CBA3656表现优越,并且在体内增强了NP便分泌.

结论:

莱可诺斯托克中类固醇CBA3656是一种高效的微生物纳米塑料生物吸收剂.
它在各种条件下强大的性能使其适合于环境和肠道NP缓解.
菌株CBA3656为纳米塑料污染挑战提供了一个有希望的生物解决方案.

关键词:

环境参数环境参数莱可诺斯托克中类固醇.微生物吸附的吸附方式鼠标的肠道鼠标的肠道塑料纳米颗粒塑料纳米粒子

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