The ability of lactic acid bacteria strains to remove di‐n‐butyl phthalate in simulated food matrices

Abstract

Summary In this study, DBP (Di‐n‐butyl phthalate) was used as an example to evaluate the plasticiser‐binding ability of lactic acid bacteria strains (LABs). Three strains of Lactobacillus plantarum 121, Leuconostoc mesenteroides DM12 and Lactobacillus acidophilus NCFM were selected from LABs to test their DBP binding ability in different simulated food matrices. The results indicated that starch, gelatinised starch and glucose could significantly promote the DBP binding efficiencies of LABs. Low‐concentration proteins (<5%) increased the binding rates. However, denatured protein had no significant effect on the DBP binding ability. On the contrary, amino acids reduced the binding rates. AFM detection results indicated that the cell morphology of LAB binding with DBP had no change after treated in gastrointestinal digestive simulation systems. Collectively, the LABs could be employed as a biological detoxification agent for human and animals by eliminating plasticiser from foods, feeds and digestive tract in the future.

Overexpression of Capsular Polysaccharide Biosynthesis Protein in Lactobacillus plantarum P1 to Enhance Capsular Polysaccharide Production for Di-n-butyl Phthalate Adsorption

“…Compared with those bacteria, LAB is safe for human beings and has more potential for DBP adsorption and removal in vivo. Furthermore, except for our previous works [ 22 ], Zhao et al ., also engaged in the study of DBP removal using LAB from the point of chemical binding [ 53 ]. In the present study, we applied overexpression strategy using capA gene to enhance the production of CPS, and significantly increased the adsorption efficiency.…”

Adsorption Behavior of 3-phenoxybenzoic Acid by Lactobacillus Plantarum and Its Potential Application in Simulated Digestive Juices

“…Two equilibrium isotherms, including the Langmuir and Freundlich models, were used to describe the biosorption equilibrium [ 43 ]. The experimental steps were as follows: 1 mg of FDC was inoculated with 1 mL of 3-PBA working solution (20 mg/L).…”