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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Polyphenolic constituent structures of Zanthoxylum piperitum fruit and the antibacterial effects of its polymeric procyanidin on methicillin-resistant Staphylococcus aureus.

Zanthoxylum piperitum (Rutaceae) is used as a spice and a natural medicine in Japan. Our study found that ZP-CT-A, a polymeric proanthocyanidin purified from the fruit of this species, noticeably decreased the minimum inhibitory concentrations of beta-lactam antibiotics for methicillin-resistant Staphylococcus aureus (MRSA). The structure of ZP-CT-A was characterized on the basis of (13)C NMR and size exclusion chromatographic data and the results of thiolytic degradation. A mechanistic study of the effects of ZP-CT-A indicated that it suppressed the activity of beta-lactamase and largely decreased the stability of the bacterial cell membrane of MRSA, as shown by a reduction in the tolerance of MRSA to low osmotic pressure and high ionic strength solutions.[1]

References

  1. Polyphenolic constituent structures of Zanthoxylum piperitum fruit and the antibacterial effects of its polymeric procyanidin on methicillin-resistant Staphylococcus aureus. Kusuda, M., Inada, K., Ogawa, T.O., Yoshida, T., Shiota, S., Tsuchiya, T., Hatano, T. Biosci. Biotechnol. Biochem. (2006) [Pubmed]
 
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