Antibiofilm mechanism of dielectric barrier discharge cold plasma against Pichia manshurica

文献类型： 外文期刊

第一作者： Hou, Xinlei

作者： Hou, Xinlei;Qian, Jing;Li, Huajia;Zhang, Jianhao;Zhao, Nan;Hou, Xinlei;Mei, Yuan;Huang, Yuli;Yang, Menglu;Li, Huajia;Zhao, Nan;Wang, Jin;Ge, Lihong;Wang, Yanli;Yan, Zhengcai;Peng, Dengshui

作者机构：

关键词： Biofilm spoilage; Fermented foods; Pichia manshurica; Dielectric barrier discharge cold plasma; Cell damage; Metabolic activities

期刊名称：INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES （ 影响因子：6.6； 五年影响因子：7.0 ）

ISSN： 1466-8564

年卷期： 2023 年 85 卷

页码：

收录情况： SCI

摘要： Biofilm spoilage has become one of the most common concerns in fermented foods. The objective of the present study was to explore the biofilm-inhibitory effect and antibiofilm mechanism of dielectric barrier discharge (DBD) cold plasma on Pichia manshurica (a species of yeast responsible for biofilm spoilage in fermented foods). After plasma treatment (80 kV, 50 Hz) for 4.5 min and 7.5 min, viable counts decreased by 2.38 and 5.11 lg CFU/ mL, respectively, and the biofilm-forming rate decreased to 73% and 48% of the control group, respectively, in microbiological media. In addition, DBD caused severe morphological damage, cell membrane permeabilization and metabolic changes. A number of amino acid metabolic pathways, the tricarboxylic acid cycle (TCA), and the synthesis of extracellular polymeric substance (EPS) were destroyed. The cell damage and changes in multiple metabolic activities led to significant inhibitory effects on Pichia manshurica and its biofilm-forming ability. Industrial relevance: This study found that DBD can significantly inhibit the biofilm-forming ability of Pichia manshurica (a species of yeast responsible for biofilm spoilage in fermented foods) by causing severe cell damage and metabolic changes. The exploration of the biofilm inhibitory effect of DBD on Pichia manshurica and its mechanism can provide a theoretical basis for the application of DBD technology in the inhibition of biofilm spoilage in foods.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序