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水产养殖中微塑料介导的抗生素迁移和生物积累:对海鲜安全的影响

Hongwen Xu¹, Nifei Cai¹, Tongyue Xiang¹

¹State Key Laboratory of Food Science and Resources, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, No.1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, China.

|March 5, 2026

概括

微塑料 (MP) 在水产养殖中可以携带抗生素 (ATB),从而危及食品安全. 这项研究表明,MPs将抗生素运送到,MPs较小和老化增加了抗生素吸附.

科学领域:

环境化学环境化学
食品安全科学食品安全科学
水产养殖科学水产养殖科学

背景情况:

微塑料 (MP) 是水生环境中新出现的污染物.
在水产养殖中使用的抗生素 (ATB) 可以吸附到MPs上,从而创造了潜在的污染物转移途径.
在海鲜中MP-ATB载体对食品安全的影响尚未完全理解.

研究的目的:

量化恩洛夫洛素 (ENR) 和硫黄 (SDZ) 吸附在聚乙烯 (PE) 和聚烯 (PP) 上的MP.
研究环境因素 (pH,盐度,颗粒大小,老化,共同溶液) 对MP-ATB吸附的影响.
评估ATB从MP转移到的转移和生物积累,并评估分析监测方法.

主要方法:

在不同条件下对PE和PPMP的ENR和SDZ吸附量的量化.
吸附动力学 (伪二次) 和等温体 (Langmuir) 的表征.
光谱技术 (SERS) 和密度函数理论 (DFT) 用于阐明吸附机制.
拉曼光谱用于在组织中检测MPs并量化ENR生物积累.

主要成果:

吸附遵循伪二次动力学和兰迈尔等温,最大吸附能力为30.3 mg/g (PE-ENR) 和32.1 mg/g (PP-ENR).
吸附受到疏水力,静电力和范德瓦尔斯力的影响;老化使吸附率高达14.6%,而较小的颗粒大小减少了吸附率.
在组织中发现的MPs较少 (14.3颗粒/g) 比在水中发现的 (138.0颗粒/L),但ENR生物积累在暴露于MPs的中 (16.4微克/公斤) 比对照组 (12.2微克/公斤) 高.

结论:

存在MP,ATB和生物体的大小依赖的运输途径,对海产品安全构成风险.
了解MP-ATB的相互作用对于开发水产养殖业有效的监测和风险评估策略至关重要.
这项研究强调了需要能够检测水生生态系统和食品中的MP和相关污染物的分析方法.

关键词:

水产养殖是水产养殖的一种方式.恩洛夫洛克萨辛是一种微塑料是一种微塑料.的组织组织.苏尔法迪亚辛 (sulfadiazine) 是一种硫酸盐.

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