Chlorogenic Acid: A Promising Strategy for Milk Preservation by Inhibiting Staphylococcus aureus Growth and Biofilm Formation
2024

Chlorogenic Acid as a Natural Preservative for Milk

publication Evidence: high

Author Information

Author(s): Yu Xiaoyan, Li Yufang, Yang Xue, He Jinze, Tang Wenhuan, Chai Yunmei, Duan Zuyan, Li Wenjie, Zhao Dan, Wang Xuefeng, Huang Aixiang, Li Hong, Shi Yanan, Bhunia Arun K.

Primary Institution: Yunnan Agricultural University

Hypothesis

This study aimed to investigate the mechanism of chlorogenic acid (CGA) against Staphylococcus aureus and its biofilm.

Conclusion

Chlorogenic acid effectively inhibits the growth of Staphylococcus aureus and its biofilm formation, making it a promising natural preservative for milk.

Supporting Evidence

  • The minimum inhibitory concentration of CGA against S. aureus was found to be 2.5 mg/mL.
  • CGA disrupts the integrity of bacterial cell membranes, leading to reduced biofilm adhesion.
  • Metabolomics analysis revealed that CGA down-regulates key amino acids involved in biofilm formation.
  • CGA significantly decreased the number of S. aureus colonies in pasteurized milk.
  • CGA treatment resulted in morphological changes in S. aureus biofilms, indicating its effectiveness.

Takeaway

Chlorogenic acid can help keep milk safe by stopping bad bacteria from growing and forming sticky layers.

Methodology

The study assessed the antibacterial activity of CGA using various methods including crystal violet staining, TEM, SEM, CLSM, and metabolomics.

Limitations

Limited studies on the role and underlying mechanisms of CGA in inhibiting S. aureus biofilm formation.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3390/foods13244104

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