Journal of Thermal Analysis and Calorimetry

, Volume 102, Issue 1, pp 331–336 | Cite as

Activity of berberine on Shigella dysenteriae investigated by microcalorimetry and multivariate analysis

  • Weijun Kong
  • Zulun Li
  • Xiaohe Xiao
  • Yanling Zhao
  • Ping Zhang


In this study, the microcalorimetric method was applied to investigate the activity of berberine on Shigella dysenteriae (S. dysenteriae). Heat flow power (HFP)–time curves of the growth metabolism of S. dysenteriae affected by berberine were determined using the thermal activity monitor (TAM) air isothermal microcalorimeter, ampoule mode, at 37 °C. By analyzing these curves and some quantitative parameters using multivariate analytical methods, similarity analysis (SA) and principal component analysis (PCA), the antibacterial activity of berberine on S. dysenteriae could be accurately evaluated from the change of the two main parameters, the maximum heat flow power P m 2 and total heat output Q t: berberine at low concentration (25 μg mL−1) began to inhibit the growth of S. dysenteriae, high concentrations (50–200 μg mL−1) of berberine had strong antibacterial activity on S. dysenteriae, when the concentration of berberine was higher (250–300 μg mL−1), this antibacterial activity was stronger. All these illustrated that the antibacterial activity of berberine on S. dysenteriae was enhanced with the increase of the concentration of this compound. Berberine can be used as potential novel antibacterial agent for treating multidrug-resistant Shigella. This work provided a useful idea of the combination of microcalorimetry and multivariate analysis for studying the activity of other compounds or drugs on organisms.


Berberine S. dysenteriae Microcalorimetry Multivariate analysis 



We are grateful to the support of National Basic Research Program of China (973 project) (2007CB512607); Foundation of State Youth Science (30625042) and National Natural Science Fond (No.30772740). We thank the reviewers for their critical comments on the manuscript.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010

Authors and Affiliations

  • Weijun Kong
    • 1
    • 2
  • Zulun Li
    • 1
  • Xiaohe Xiao
    • 2
  • Yanling Zhao
    • 2
  • Ping Zhang
    • 2
  1. 1.Pharmacy CollegeChengdu University of Traditional Chinese MedicineChengduPeople’s Republic of China
  2. 2.China Military Institute of Chinese Materia Medica, 302 Military Hospital of ChinaBeijingPeople’s Republic of China

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