Food and Fermentation Industries >

2025 , Vol. 51 >Issue 9: 369 - 376

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.040092

Research progress on nitrite biological reduction in Paocai

  • LI Jing ,
  • ZHANG Min ,
  • HU Kaidi ,
  • YANG Jinmei ,
  • WAN Yunxiao ,
  • LI Jianlong ,
  • LI Qin ,
  • ZHAO Ning ,
  • AO Xiaolin ,
  • LIU Aiping ,
  • LIU Shuliang
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  • 1(College of Food Science, Sichuan Agricultural University, Ya'an 625014, China)
    2(Chengdu Shengen Technology Co.Ltd., Chengdu 611130, China)

Received date: 2024-06-04

  Revised date: 2024-08-07

  Online published: 2025-05-28

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Abstract

Paocai is made by dipping a variety of fresh vegetables into salt brine (4%-10%) and fermenting with lactic acid bacteria as well as other microorganisms, which features unique flavor.During fermentation, the nitrate derived from vegetables would be transformed into nitrite by miscellaneous bacteria.Nitrite is a common pollutant in Paocai and poses a threat to human health.Hence, comprehensively understanding the degradation mechanisms of nitrite in Paocai, particularly its removal by microorganisms, is of great benefit to guarantee Paocai's safety.Based on the formation and transformation mechanism of nitrite in Paocai, the profile of nitrite and factors affecting nitrite content in Paocai were systematically summarized.Then, elimination approaches towards nitrite were introduced, with emphasis on biodegradation technique.Furthermore, the pathways and mechanisms of nitrite degradation by lactic acid bacteria through enzymes and acids were reviewed, together with involved enzymes and their encoding genes, degrading microorganisms and their efficacy.The present review provides theoretical basis for the production of Paocai with low or no nitrite content.

Key words： Paocai; nitrite; influencing factors; mechanism; biological reduction

Cite this article

LI Jing , ZHANG Min , HU Kaidi , YANG Jinmei , WAN Yunxiao , LI Jianlong , LI Qin , ZHAO Ning , AO Xiaolin , LIU Aiping , LIU Shuliang . Research progress on nitrite biological reduction in Paocai[J]. Food and Fermentation Industries, 2025 , 51(9) : 369 -376 . DOI: 10.13995/j.cnki.11-1802/ts.040092

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