Yukiko Nakazono
Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima University,
Korimoto 1-21-24, Kagoshima 890-0065, Japan
Yuka Watanabe
Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima University,
Korimoto 1-21-24, Kagoshima 890-0065, Japan
Fumio Hashinaga
Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima University,
Korimoto 1-21-24, Kagoshima 890-0065, Japan
Kenjiro Tadera
Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima University,
Korimoto 1-21-24, Kagoshima 890-0065, Japan
ABSTRACT
A yuzu (Citrus junos hort. ex Tanaka) seed extract with 80% methanol showed a potent antimicrobial activity against Micrococcus luteus, Staphylococcus aureus, Escherichia coli and Salmonella enteritidis. The antimicrobial substance was purified by adsorption column chromatography and identified as p-methoxycinnamic acid by gas chromatography-mass spectrometry. Minimum inhibitory concentrations of p-methoxycinnamic acid against M. luteus, S. aureus, E. coli and S. enteritidis were 80, 60, 50 and 60 μg mL-1, respectively. In addition, this structure suggested that p-methoxycinnamic acid had the antioxidative activity and we investigated also the antioxidative activity. The antioxidative activity of p-methoxycinnamic acid was about 70-80% of that of BHA, BHT and α-tocopherol.
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How to cite this article
Yukiko Nakazono, Yuka Watanabe, Fumio Hashinaga and Kenjiro Tadera, 2006. Studies on Antimicrobial and Antioxidative Substance of Yuzu (Citrus junos hort. ex Tanaka) Seed. Journal of Biological Sciences, 6: 135-139.
DOI: 10.3923/jbs.2006.135.139
URL: https://scialert.net/abstract/?doi=jbs.2006.135.139
DOI: 10.3923/jbs.2006.135.139
URL: https://scialert.net/abstract/?doi=jbs.2006.135.139
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