Effect of salt concentration on the quality and microbial community during pickled peppers fermentation
Jianbo Tang, Xiaomeng Wu, Du Lv, Shan Huang, Yu Zhang, Fanhua Kong
Food Chemistry X
Abstract
This work aimed to investigate the effect of salt concentration on the quality and microbial community of pickled peppers during fermentation, and the cross-correlation between microorganisms and quality was also revealed. The results showed that 9 volatile flavor compounds were unique to the low salt concentration group (D group), which also contained higher content of FAA, lactic acid and acetic acid than high salt concentration group (G group). Meanwhile, the samples of D2 group have a better texture properties. <i>Firmicutes</i>, <i>Proteobacteria</i>, <i>Ascomycota</i>, <i>Lactobacillus</i>, <i>Pectobacterium</i>, and <i>Pseudomonas</i> were detected as the main microbial community during the fermentation with different salt concentrations. Furthermore, the correlations analysis results indicated that the salt concentration has a significant effect on the microbial community of pickled peppers (<i>p</i> < 0.001), and <i>Pediococcus</i>, <i>Lactobacillus</i>, <i>Cedecca</i>, <i>Issatchenkia</i>, <i>Pichia</i>, <i>Kazachstania</i>, and <i>Hanseniaspora</i> were significantly correlated with flavors, which played crucial roles in the unique flavor formation of pickled peppers.
Extracted Claims
5 claims extracted from this paper into the knowledge graph
salt concentration affects microbial community
“the salt concentration has a significant effect on the microbial community of pickled peppers (p < 0.001)”
salt concentration affects texture properties
“Meanwhile, the samples of D2 group have a better texture properties.”
salt concentration affects FAA, lactic acid, and acetic acid content
“9 volatile flavor compounds were unique to the low salt concentration group (D group), which also contained higher content of FAA, lactic acid and acetic acid than high salt concentration group (G gro...”