This study investigated the physicochemical properties, amino acid, and volatile flavor compounds of paocai inoculated with homo- (Lactobacillus pentosus NCU050008 and Lactobacillus plantarum NCU001290) and hetero-fermentative lactic acid bacteria (LAB) (Leuconostoc mesenteroides NCU018030 and Lactobacillus brevis NCU002227). The lactic acid, arginine, cysteine, cineole, and (+)-3-carene mainly contributed to the characteristics of paocai fermented inoculated with homo-fermentative LAB, while the acetic acid, proline, histidine, alanine, valine, leucine, isoleucine, glycine, phenylalanine, methionine, and trans-3-caren-2-ol mainly contributed to the characteristics of paocai fermented inoculated with hetero-fermentative LAB. Principal Component Analysis showed that the metabolism of paocai samples fermented inoculated with homo-fermentative LAB significantly differed from those in paocai with hetero-fermentative LAB. This study provides insights into the effects of homo- and hetero-fermentative lactic acid bacteria on the physicochemical properties, amino acid, and volatile flavor in paocai and might help for industrial paocai production.

Novelty impact statement

The results of this study showed the physicochemical properties, amino acid, and volatile flavor compounds of paocai inoculated with homo-fermentative lactic acid bacteria significantly differed from those of paocai inoculated with hetero-fermentative lactic acid bacteria (LAB) (Leuconostoc mesenteroides NCU018030 and Lactobacillus brevis NCU002227). Moreover, the characteristic compounds of paocai fermented inoculated with homo-fermentative LAB also differed from those of paocai fermented and inoculated with hetero-fermentative LAB. Therefore, the data obtained in this study provides a better understanding of the effects of homo-fermentative lactic acid and hetero-fermentative lactic acid bacteria on the paocai and would be very beneficial for the production of high-quality paocai.

CONFLICT OF INTEREST

The authors have declared no conflicts of interest for this article.

Open Research

DATA AVAILABILITY STATEMENT

The data are not shared, however, can be provided on request to the corresponding author.

Supporting Information

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Effect of homo- and hetero-fermentative lactic acid bacteria on physicochemical properties, amino acid, and volatile flavor compounds during paocai fermentation by pure culture

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Effect of homo- and hetero-fermentative lactic acid bacteria on physicochemical properties, amino acid, and volatile flavor compounds during paocai fermentation by pure culture

Abstract

Novelty impact statement

CONFLICT OF INTEREST

Open Research

DATA AVAILABILITY STATEMENT

Supporting Information

REFERENCES

Citing Literature

References

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