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Microbes in the Production of Fermented Foods01:27

Microbes in the Production of Fermented Foods

Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...

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Bioactive component shifts in flowering Chinese cabbage treated by three processing methods.

Xuewei Xia1,2, Guo Li2, Wenshen Lin3

  • 1College of Horticulture, South China Agricultural University, Guangzhou, China.

Journal of the Science of Food and Agriculture
|July 10, 2025
PubMed
Summary

Drying flowering Chinese cabbage, unlike steaming, significantly enhances its anti-cancer properties by increasing beneficial bioactive compounds. This research guides processing choices to maximize health benefits from this Brassica vegetable.

Keywords:
bioactive componentflowering Chinese cabbagemetabolomenetwork pharmacology

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Area of Science:

  • Agricultural Science
  • Nutritional Science
  • Biochemistry

Background:

  • Flowering Chinese cabbage is a nutritious Brassica vegetable.
  • The effects of processing on its bioactive components and health benefits are not well understood.
  • This study examines how steaming, hot-air drying, and freeze-drying impact its anti-cancer properties.

Purpose of the Study:

  • To investigate the impact of different processing methods (steaming, hot-air drying, freeze-drying) on the bioactive components of flowering Chinese cabbage.
  • To evaluate the anti-proliferative effects of extracts from processed cabbage on colon cancer cells (HT29).
  • To identify key bioactive compounds responsible for the observed anti-cancer activities.

Main Methods:

  • Processing flowering Chinese cabbage using steaming, hot-air drying, and freeze-drying.
  • Preparing methanol extracts from the processed samples.
  • Assessing the anti-proliferative activity of extracts against the HT29 colon cancer cell line.
  • Utilizing untargeted metabolomics and network pharmacology for component analysis.

Main Results:

  • Both hot-air drying and freeze-drying significantly inhibited HT29 cell proliferation compared to steaming.
  • Metabolomic analysis showed significant alterations in cinnamic acids, flavonoids, and prenol lipids across all processing methods.
  • Network pharmacology identified sulforaphane, pentamidine, S-adenosylhomocysteine, and S-adenosylmethionine as key metabolites enriched in dried samples, correlating with anti-proliferative activity.

Conclusions:

  • Processing methods significantly alter the bioactive profile and anti-cancer potential of flowering Chinese cabbage.
  • Drying methods enhance specific bioactive metabolites, leading to potent inhibition of colon cancer cell proliferation.
  • Findings provide guidance for optimizing processing techniques to preserve or enhance the health benefits of flowering Chinese cabbage.