Anti-mildew and fresh-keeping effect of Lactiplantibacillus paraplantarum P3 cell-free supernatant on fresh in-shell peanuts during storage process

Haoxin Lv; Chaoyue Cui; Zubin Wang; Yijun Liu; Shichang Liu; Tianjie Qi; Yanfei Li; Yan Zhao

doi:10.1016/j.ijfoodmicro.2024.110719

Anti-mildew and fresh-keeping effect of Lactiplantibacillus paraplantarum P3 cell-free supernatant on fresh in-shell peanuts during storage process

Int J Food Microbiol. 2024 Apr 25:418:110719. doi: 10.1016/j.ijfoodmicro.2024.110719. Online ahead of print.

Authors

Haoxin Lv¹, Chaoyue Cui¹, Zubin Wang¹, Yijun Liu¹, Shichang Liu¹, Tianjie Qi¹, Yanfei Li¹, Yan Zhao²

Affiliations

¹ Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou 450001, Henan Province, China; School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, Henan Province, China.
² Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou 450001, Henan Province, China; School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, Henan Province, China. Electronic address: zhaoyanss10@126.com.

PMID: 38688186
DOI: 10.1016/j.ijfoodmicro.2024.110719

Abstract

Lactiplantibacillus paraplantarum P3 (L. paraplantarum P3) cell-free supernatant (CFS) with good antifungal effect was sprayed on fresh in-shell peanuts stored at 5 °C and 30 °C to explore its effect on the microorganisms and quality of fresh in-shell peanuts during storage process. Results showed that L. paraplantarum P3 CFS effectively maintained good quality of fresh in-shell peanuts by not only reducing fungi amount and the mildew rate, but also improving the morphology, color and flavor. Besides, L. paraplantarum P3 CFS activated plant mitogen-activated protein kinase signaling pathway and plant hormone signaling pathway to produce more ethylene, gibberellin regulatory proteins and other substances to enhance plant resistance to pathogenic microorganisms. L. paraplantarum P3 CFS could also induce the biosynthesis of glycerophospholipid and arginine to increase the stress resistance of fresh peanuts. This study provides research data for the application of L. paraplantarum P3 CFS in the preservation and antimildew of fresh in-shell peanuts.

Keywords: Agricultural products; Lactic acid bacteria; Plant resistance; Postharvest preservation; Secondary metabolite.