PMID- 35917712 OWN - NLM STAT- MEDLINE DCOM- 20220823 LR - 20220823 IS - 1090-2414 (Electronic) IS - 0147-6513 (Linking) VI - 242 DP - 2022 Sep 1 TI - In-silico study of reducing human health risk of POP residues' direct (from tea) or indirect exposure (from tea garden soil): Improved rhizosphere microbial degradation, toxicity control, and mechanism analysis. PG - 113910 LID - S0147-6513(22)00750-3 [pii] LID - 10.1016/j.ecoenv.2022.113910 [doi] AB - The accumulation of potentially harmful substances in tea garden soils and tea leaves, especially persistent organic pollutants (POPs), is a special concern for tea consumers worldwide. However, their potential health and ecological risks in tea gardens have rarely been investigated. This study proposed measures to improve the degradation ability of POPs by the tea rhizosphere and to reduce the human health risks caused by POPs after tea consumption. In this study, the binding energy values of six types of POPs and the degraded protein were used to reflect the degradation ability and calculated using molecular dynamic simulations. The main root secretions (i.e., catechin, glucose, arginine, and oxalic acid) were selected and applied with a combination of tea fertilizer and trace element combination (i.e., urea, straw, and copper element), leading to an improved degradation ability (49.59 %) of POPs. To investigate the mechanisms of the factors that affect the degradation ability, molecular docking, tensor singular value decomposition methods, multivariate correlation analysis and 2D-QSAR model were used. The results showed that the solvation energy and solvent accessible surface area are the main forces, and the molecular weight, boiling point, and topological radius of the POPs were the key molecular features affecting their degradation ability. Based on the three key characteristics, a diet avoidance scheme (i.e., avoiding lysine, maslinic acid, ethanol, perfluorocaproic acid, and cholesterol with tea), which can reduce the binding ability of POP residues to aromatic hydrocarbon receptors by 506.13 %. This work will provide theoretical strategies to improve the quality and safety of tea production and reduce the potential risks of harmful substance residues in tea garden soils and tea leaves. CI - Copyright (c) 2022 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Du, Meijin AU - Du M AD - College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China. FAU - Li, Xixi AU - Li X AD - Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University, St. John's, NL A1B 3X5, Canada. FAU - Cai, Dongshu AU - Cai D AD - Institute of Information Engineering, CAS, Beijing 100093, China. FAU - Zhao, Yuanyuan AU - Zhao Y AD - College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China. FAU - Li, Qing AU - Li Q AD - College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China. FAU - Wang, Jianjun AU - Wang J AD - College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China. FAU - Gu, Wenwen AU - Gu W AD - College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China. Electronic address: gww0813@outlook.com. FAU - Li, Yu AU - Li Y AD - College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China. LA - eng PT - Journal Article DEP - 20220731 PL - Netherlands TA - Ecotoxicol Environ Saf JT - Ecotoxicology and environmental safety JID - 7805381 RN - 0 (Fertilizers) RN - 0 (Soil) RN - 0 (Tea) SB - IM MH - Fertilizers/analysis MH - Humans MH - Molecular Docking Simulation MH - *Rhizosphere MH - *Soil/chemistry MH - Tea/chemistry OTO - NOTNLM OT - Health risk regulation strategy OT - Molecular dynamics simulation OT - Persistent organic pollutants OT - Quantitative structure activity relationship OT - Soil rhizosphere microorganism EDAT- 2022/08/03 06:00 MHDA- 2022/08/24 06:00 CRDT- 2022/08/02 18:23 PHST- 2022/05/01 00:00 [received] PHST- 2022/07/04 00:00 [revised] PHST- 2022/07/19 00:00 [accepted] PHST- 2022/08/03 06:00 [pubmed] PHST- 2022/08/24 06:00 [medline] PHST- 2022/08/02 18:23 [entrez] AID - S0147-6513(22)00750-3 [pii] AID - 10.1016/j.ecoenv.2022.113910 [doi] PST - ppublish SO - Ecotoxicol Environ Saf. 2022 Sep 1;242:113910. doi: 10.1016/j.ecoenv.2022.113910. Epub 2022 Jul 31.