ANTIMICROBIAL ACTIVITIES OF THE ESSENTIAL OILS FROM THAI LAMIACEOUS PLANTS

Daojan Choochoat^a, Nongluksana Sriubolmas^b, Wanchai De-Eknamkulc and Nijsiri Ruangrungsi^c

 ^a Faculty of  Pharmacy Rangsit University, Pathumthani 12000 Thailand;

 ^b Department of Microbiology, Faculty of Pharmaceutical Sciences , Chulalongkorn University , Bangkok 10330 , Thailand;  ^c Department of Pharmacognosy, Faculty of Pharmaceutical Sciences , Chulalongkorn University , Bangkok 10330 , Thailand

Abstract: The chemical compositions of the essential oils obtained from ten species of Thai Lamiaceous plants including Coleus amboinicus Lour., Hyptis sauveolens Poit., Mentha arvensis var. piperascens Malinvaud., Mentha cordifolia Opiz., Ocimum basilicum L., Ocimum canum L., Ocimum sanctum L., Ocimum gratissimum L., Perilla frutescens Britt and Pogostemon cablin Benth. were hydrodistillated and analysed by GC/MS.  In this study, oxygenated monoterpenes are commonly found in essential oils of these particular species.  Variation of the contents were found to be between 0.01-0.09%.  Screening for antimicrobial activities of essential oils were performed.  Results have shown that most of them exhibited antimicrobial activity against  Staphylococcus aureus (ATCC29213) and Bacillus subtilis (ATCC6633), but no activity against Candida albicans (ATCC10231) and Microsporum gypseum(clinical isolated).

ที่มา : วทท. 18-20 ต.ค. 2543