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Báo cáo nghiên cứu khoa học: "STUDY ON THE ANTIBACTERIAN CHARACTERISTICS OF TEA TREE OIL AND ITS APPLICATION IN COSMETICS"

Bài viết mô tả các kết quả điều tra về hoạt động kháng khuẩn của dầu Úc có nguồn gốc từ trà (alternifolia tràm) cây và ứng dụng của nó trong sản xuất mỹ phẩm. | TẠP CHÍ PHÁT TRIỂN KH CN TẬP 11 SÓ 08 - 2008 STUDY ON THE ANTIBACTERIAN CHARACTERISTICS OF TEA TREE OIL AND ITS APPLICATION IN COSMETICS Phan Dinh Tuan Hoang Minh Nam Nguyen Thi Thanh Nga University of Technology VNU-HCM Manuscript Received on January 10th 2008 Manuscript Revised May 12 h 2008 ABSTRACT The article describes the investigation results on the antibacterial activity of the Australian-originated tea tree Alternifolia melaleuca oil and its application in cosmetics production. The research points out that not only terpinen-4-ol but also other components of the oil have rather high antibacterial activity. With a dose of about 0.25 all fractions of the tea tree oil could destroy 90 the typical bacteria as Escherichia coli Staphylococcus aureus Pseudomonas aeruginosa and Candida albacans. A test of adding 0.25 of the oil into cosmetics shows that the product retains its antibacterial activity and pleasant odor as well. The investigation results contribute to its application prospect in producing detergents cosmetics and pharmaceuticals of suitable antibacterial activity. Keyword Tea tree oil terpinen 4-ol antibacterial 1.INTRODUCTION Tea trees have been widely planted in the Mekong River Delta area of Vietnam. The investigation has pointed out that its essential oil composition is of about 2 by weight. The essential oil could be easily recovered and purified by steam distillation followed by fractional one 9 . It has been reported that tea tree oil has rather high antibacterial activity 9 12 14 17 18 for its high composition of terpinen-4-ol. Nevertheless it has been found that not only terpinen-4-ol but also other components have the activity. It is necessary to find out the available minimum dose of the essential oil in practical use that the antibacterial activity could be retained. Besides it is important to point out the available ability to use different fractions of the essential oil for antibacterial purpose. 2.MATERIALS AND METHODS 2.1. Materials .