Antimicrobial and Antioxidant Activities of Traditional Thai Herbal Remedies for Aphthous Ulcers

Chantana Mekseepralard, Narisa Kamkaen, Jennifer Wilkinson

Research output: Contribution to journalArticle

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77 Downloads (Pure)

Abstract

Four medicinal plants (Quercus infectoria, Kaempferia galanga, Coptis chinensis and Glycyrrhiza glabra) as well as one traditional Thai treatment for aphthous ulcers based on these four plants were tested for antimicrobial activity. MIC values for a range of bacteria and Candida albicans were determined, with both type strains and clinical isolates being used. Antioxidant activity was determined using the ABTS radical scavenging assay. Among four the plants, Q. infectoria showed antimicrobial activity against Staphylococcus aureus with an MIC of 0.41 mg/mL while C. chinensis showed antifungal activity against C. albicans with an MIC of 6.25 mg/mL. Activity was also shown against a range of other organisms including Salmonella typhi, Serratia marcescens, Vibrio cholerae, Vibrio parhaemolyticus, Pseudomonas aeruginosa and Enterococcus faecalis. The antimicrobial activity of the traditional aphthous ulcer preparation (a powder) was comparable to that for the individual plants extracts however incorporation of the powder into a gel formulation resulted in a loss of almost all activity. All extracts, with the exception of K. galanga, also showed good antioxidant activity. This study supports the traditional use of these plants and suggests that they may also be useful in the treatment of other infections.
Original languageEnglish
Pages (from-to)1514-1519
Number of pages6
JournalPhytotherapy Research
Volume24
Issue number10
DOIs
Publication statusPublished - Oct 2010

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Aphthous Stomatitis
Alpinia
Quercus
Antioxidants
Candida albicans
Powders
Coptis
Zingiberaceae
Glycyrrhiza
Salmonella typhi
Serratia marcescens
Vibrio cholerae
Vibrio
Enterococcus faecalis
Plant Extracts
Medicinal Plants
Pseudomonas aeruginosa
Staphylococcus aureus
Gels
Bacteria

Cite this

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abstract = "Four medicinal plants (Quercus infectoria, Kaempferia galanga, Coptis chinensis and Glycyrrhiza glabra) as well as one traditional Thai treatment for aphthous ulcers based on these four plants were tested for antimicrobial activity. MIC values for a range of bacteria and Candida albicans were determined, with both type strains and clinical isolates being used. Antioxidant activity was determined using the ABTS radical scavenging assay. Among four the plants, Q. infectoria showed antimicrobial activity against Staphylococcus aureus with an MIC of 0.41 mg/mL while C. chinensis showed antifungal activity against C. albicans with an MIC of 6.25 mg/mL. Activity was also shown against a range of other organisms including Salmonella typhi, Serratia marcescens, Vibrio cholerae, Vibrio parhaemolyticus, Pseudomonas aeruginosa and Enterococcus faecalis. The antimicrobial activity of the traditional aphthous ulcer preparation (a powder) was comparable to that for the individual plants extracts however incorporation of the powder into a gel formulation resulted in a loss of almost all activity. All extracts, with the exception of K. galanga, also showed good antioxidant activity. This study supports the traditional use of these plants and suggests that they may also be useful in the treatment of other infections.",
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Antimicrobial and Antioxidant Activities of Traditional Thai Herbal Remedies for Aphthous Ulcers. / Mekseepralard, Chantana; Kamkaen, Narisa; Wilkinson, Jennifer.

In: Phytotherapy Research, Vol. 24, No. 10, 10.2010, p. 1514-1519.

Research output: Contribution to journalArticle

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