Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3742

Full Length Research Paper

Antimicrobial, anti-tyrosinase and antioxidant activities of aqueous aromatic extracts from forty-eight selected herbs

Chih-Chien Lin1, Chao-Hsun Yang1, Pey-Shiuan Wu1,2, Chang-Chin Kwan2 and Yi-Shyan Chen1*
1Department of Cosmetic Science, Providence University, 200 Chung-Chi Road, Shalu, Taichung, 43301, Taiwan, Republic of China. 2Department of Applied Chemistry, Providence University; 200 Chung-Chi Road, Shalu, Taichung, 43301, Taiwan, Republic of China.
Email: [email protected]

  •  Accepted: 22 September 2011
  •  Published: 16 November 2011

Abstract

In the essential oil extraction process of herbs, the aqueous part of distillate was often been treated as waste. Thus, discovery of potentialities of the aqueous part of herbs will aid us to realize further applications of this byproduct. In this study, we examine the antimicrobial activity, anti-tyrosinase and antioxidant activities of 48 selected herbs which are suitable to be planted in Taiwan and Southeast Asia. Results shown that only 5 herbs such asCanarium album and Cinnamomum japonicum have antimicrobial activities onPropionibacterium acneStaphylococcus epidermidis or Malassezia furfur. In addition,Cinnamomum japonicum had shown the highest activity up to 83% for the inhibition of dopachrome formation. Moreover, numerous herbs exhibited the potent antioxidant activities, including Ocimum gratissimumCanarium albumMelaleuca alternifolia and Origanum majorana. Therefore, these results of this study may help us to recognize the potentialities of these herbal aqueous aromatic extracts in future.

 

Key words: Antimicrobial activity, antioxidant activity, aqueous aromatic extract, herbs, inhibition of dopachrome formation.

Abbreviation

DPPH, 2,2-diphenyl-1-picrylhydrazyl; BHA, butylated hydroxyanisole; BHT,butylated hydroxytoluene; EDTA, ethylenediaminetetraacetic acid; RCM, reinforced clostridial medium; TSB, tryptic soy broth;  NB, nutrient broth;  MEB, malt extract broth;MeOH, methanol; ddH2O, deionized distilled water.