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Food Chem

Title:		Application of iron oxide nanoparticles @ polydopamine-nisin composites to the inactivation of Alicyclobacillus acidoterrestris in apple juice
Author(s):		Song Z; Wu H; Niu C; Wei J; Zhang Y; Yue T;
Address:		"College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling 712100, China; National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling 712100, China. College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China. Northwest Univ Xian, Coll Food Sci & Engn, Xian, Shaanxi, China. College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling 712100, China; National Engineering Research Center of Agriculture Integration Test (Yangling), Yangling 712100, China. Electronic address: yuetl305@nwsuaf.edu.cn"
Journal Title:		Food Chem
Year:		2019
Volume:		20190219
Issue:
Page Number:		68 - 75
DOI:		10.1016/j.foodchem.2019.02.044
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"Iron oxide nanoparticles (IONPs) modified with polydopamine were covalently immobilized with nisin to inhibit the growth of Alicyclobacillus acidoterrestris in apple juice. The minimum bactericidal concentration (MBC) of IONPs @ pDA-nisin composites against Alicyclobacillus acidoterrestris cells and spores in three kinds of apple juice were 1.25?ª+mg/mL and 2.5?ª+mg/mL, respectively. The concentration of cells and spores decreased from 10(6) to 10?ª+CFU/mL in apple juice after pretreatment with the composites at the concentration of 20?ª+mg/mL for 10?ª+min. Meanwhile, the investigation of the content of polyphenols, organic acids, volatile compounds and sugars indicated that there was no significant influence of the composites on the apple juices. The results of cytotoxicity (HepG2, Caco 2, SH-SY5Y, and BV2 cells) and acute toxicity test demonstrated the biosecurity and nontoxicity of the composites, which suggested that it was promising to apply the proposed composites to apple juice industry for the control of Alicyclobacillus acidoterrestris pollution"
Keywords:		Alicyclobacillus/*drug effects Cell Survival/drug effects Fruit and Vegetable Juices/*microbiology Hep G2 Cells Humans Indoles/*chemistry Magnetite Nanoparticles/*chemistry *Malus *Nisin/chemistry/pharmacology/toxicity Polymers/*chemistry Alicyclobacillus;
Notes:		"MedlineSong, Zihan Wu, Hao Niu, Chen Wei, Jianping Zhang, Yuxiang Yue, Tianli eng England 2019/03/13 Food Chem. 2019 Jul 30; 287:68-75. doi: 10.1016/j.foodchem.2019.02.044. Epub 2019 Feb 19"