Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8888169 | Food Control | 2018 | 38 Pages |
Abstract
A magnetic nanoparticle (nano-Fe3O4) functionalized inactivated yeast (MY) bio-sorbent was prepared via a simple in situ co-precipitation method for easy-to-separate and cost-effective adsorption of patulin. The MY was characterized by SEM, TEM, XRD, zeta potential and FTIR analysis. Adsorption test revealed that compared with the commonly used two-step synthetic method, MY prepared through this one-step route with the Fe3O4/yeast mass ratio of 0.17 ± 0.01 g gâ1 possesses the highest adsorption capacity of 2.69 ± 0.06 mg gâ1. The effects of contact time, temperature, pH and initial concentration on patulin removal by MY were investigated. The adsorption process followed the pseudo-first-order kinetic model and the Freundlich isotherm model. And the thermodynamic parameters indicated that the adsorption is spontaneous and endothermic. Moreover, MY could be directly used for patulin removal from apple juice samples, showing ignorable impact on juice quality.
Related Topics
Life Sciences
Agricultural and Biological Sciences
Food Science
Authors
Yue Qiu, Hong Guo, Chunfeng Guo, Jianzi Zheng, Tianli Yue, Yahong Yuan,