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자료유형
학술저널
저자정보
저널정보
한국식품영양과학회 Journal of Food Science and Nutrition Journal of Food Science and Nutrition Vol.4 No.2
발행연도
1999.6
수록면
97 - 102 (6page)

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Antimicrobial activity and chemical composition of volatile flavor extracts from Agastache rugosa were investigated. The volatile flavor extracts were obtained from leaves and stems of Agastache rugosa by simultaneous distillation-extraction (SDE) method. Antimicrobial activity was investigated by disc diffusion and broth dilution methods against several microorganisms of Bacillus cereus, Bacillus megaterium, Bacillus subtilis, Corynebacterium xerosis, Staphylococcus aureus, Staphylococcus epidermidis, Agrobacterium rhizogenes, Agrobacterium tumefaciens, Enterobacter cloacae, Escherichia coli, Salmonella typhi, Vibrio parahaemolyticus, Candida utilis and Saccharomyces cerevisiae. Volatile flavor extracts from leaves have strong antimicrobial activity against C. utilis and S. cerevisiae. There was no significant difference in antimicrobial activity of extracts between fresh and dried leaves. Volatile flavor extracts from fresh and dried leaves inhibited the growth of C. utilis and S. cerevisiae. When 0.12% volatile flavor extract from fresh leaves were included in the medium, lag phase of C. utilis was extended 6 hr and that of S. cerevisiae extended 10 hr. When the same amount of extract from dried leaves was included, lag phase of C. utilis and S. cerevisiae was extended 2 hr. Further analyses were performed to elucidate the effective components of the extracts. The major component of volatile flavor was estragole, a phenolic compound. Minor components were determined to be terpenes, alcohols, acids, esters, ketones and aldehydes.

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Abstract

INTRODUCTION

MATERIALS AND METHODS

RESULTS AND DISCUSSION

ACKNOWLEDGEMENTS

REFERENCES

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