Application of iron oxide nanoparticles @ polydopamine-nisin composites to the inactivation of Alicyclobacillus acidoterrestris in apple juice
Application of iron oxide nanoparticles @ polydopamine-nisin composites to the inactivation of Alicyclobacillus acidoterrestris in apple juice
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氧化铁纳米粒子@聚多巴胺-乳链菌肽复合物在灭活苹果汁中酸土脂环酸芽孢杆菌中的应用
DOI：
10.1016/j.foodchem.2019.02.044
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发表时间：
2019
期刊：
影响因子：
8.8
通讯作者：
Yue Tianli
中科院分区：
文献类型：
--
作者：
Song Zihan;Wu Hao;Niu Chen;Wei Jianping;Zhang Yuxiang;Yue Tianli
Iron oxide nanoparticles (IONPs) modified with polydopamine were covalently immobilized with nisin to inhibit the growth ofAlicyclobacillus acidoterrestrisin apple juice. The minimum bactericidal concentration (MBC) of IONPs @ pDA-nisin composites againstAlicyclobacillus acidoterrestriscells and spores in three kinds of apple juice were 1.25 mg/mL and 2.5 mg/mL, respectively. The concentration of cells and spores decreased from 106to 10 CFU/mL in apple juice after pretreatment with the composites at the concentration of 20 mg/mL for 10 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 ofAlicyclobacillus acidoterrestrispollution.
