Adsorption kinetics and mechanism of di-n-butyl phthalate by Leuconostoc mesenteroides

被引：14

作者：

Zhao, Lili ^{[1
,2
]}

Li, Xinlei ^{[1
]}

Yang, Qingxiang ^{[1
,2
]}

Zhuang, Di ^{[1
]}

Pan, Xin ^{[1
]}

Li, Lubo ^{[1
]}

机构：

[1] Henan Normal Univ, Coll Life Sci, Xinxiang, Henan, Peoples R China

[2] Henan Normal Univ, Henan Int Joint Lab Agr Microbial Ecol & Technol, Xinxiang, Henan, Peoples R China

来源：

FOOD SCIENCE & NUTRITION | 2020年 / 8卷 / 11期

关键词：

di-n-butyl phthalate; Leuconostoc mesenteroides; removal mechanism; LACTIC-ACID BACTERIA; AFLATOXIN B-1; TEICHOIC-ACIDS; KEY ROLE; BINDING; REMOVAL; STRAINS; SURFACE; ACRYLAMIDE; INHIBIT;

D O I：

10.1002/fsn3.1908

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Di-n-butyl phthalate (DBP) poses a risk to humans as a ubiquitous environmental contaminant. A strain ofLeuconostoc mesenteroidesDM12 was chosen from lactic acid bacteria strains to study the DBP binding mechanisms. Adsorption of DBP by strain DM12 reached the highest binding rate of 87% after 11 hr of incubation, which could be explained by pseudo-second-order kinetics. The adsorption isotherm coincided with the model of Langmuir-Freundlich, indicating physical and chemical adsorption processes involved. Further, NaIO4 and TCA treatments were used to analyze the DBP binding mechanism of strain DM12, which indicated that peptidoglycan on the bacterial cell wall was involved in the process. The O-H, C-O, and N-H bonds were possibly involved in the binding process as the main functional groups.

引用

页码：6153 / 6163

页数：11

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