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Antioxidative Constituents from Viticis trifoliae Fructus (Fruit of Vitex rotundifolia L.).
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- ONO Masateru
- Research Institute of General Education, Kyushu Tokai University
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- MASUOKA Chikako
- School of Agriculture, Kyushu Tokai University
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- ITO Yasuyuki
- Research Institute of General Education, Kyushu Tokai University
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- NOHARA Toshihiro
- Faculty of Pharmaceutical Sciences, Kumamoto University
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Description
Seven phenolic compounds, vanillic acid (1), threo-guaiacyl glycerol (2), erythro-guaiacyl glycerol (3), taxifolin (4), dihydrodehydrodiconiferyl alcohol (5), dihydrodehydrodiconiferyl alcohol-9-O-β-D-glucoside (6) and dihydrodehydrodiconiferyl alcohol-(4→8)-erythro-guaiacyl glycerol ether (7), were separated from the methanol extract of Viticis trifoliae Fructus (Fruit of Vitex rotundifolia L.) and their structures were identified on the basis of spectroscopic data. In addition, 1, 2, 4-7 and two previously isolated iridoid glucosides, agnuside (8) and VR-I (10-O-vanilloyl aucubin) (9) were tested for antioxidative activity using the ferric thiocyanate method. These compounds, except 8, exhibited stronger antioxidative activity than 3-tert-butyl-4-hydroxyanisole. Moreover, 1, 2 and 4-9 were investigated for the scavenging effect on 1,1-diphenyl-2-picrylhydrazyl. All tested compounds, except 8, showed a potent scavenging effect. Especially, the effect of 4 was almost twice that of α-tocopherol at a concentration of 0.02 mM.
Journal
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- Food Science and Technology International, Tokyo
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Food Science and Technology International, Tokyo 4 (1), 9-13, 1998
Japanese Society for Food Science and Technology
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Keywords
Details 詳細情報について
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- CRID
- 1390282679432145920
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- NII Article ID
- 130000122873
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- NII Book ID
- AA11267620
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- COI
- 1:CAS:528:DyaK1cXivFSksr0%3D
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- ISSN
- 18813976
- 13417592
- http://id.crossref.org/issn/13417592
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed
