A New Chalcone from Propolis Collected on Jeju Island, Korea

Shigenori KUMAZAWA; Shou SUZUKI; Mok-Ryeon AHN; Miya KAMIHIRA; Yu UDAGAWA; Keuk-Seung BANG; Tsutomu NAKAYAMA

doi:10.3136/fstr.12.67

Notes

A New Chalcone from Propolis Collected on Jeju Island, Korea

Shigenori KUMAZAWA, Shou SUZUKI, Mok-Ryeon AHN, Miya KAMIHIRA, Yu UDAGAWA, Keuk-Seung BANG, Tsutomu NAKAYAMA

Author information

Shigenori KUMAZAWA
Laboratory of Functional Food Science and COE Program in the 21st Century, School of Food and Nutritional Sciences, University of Shizuoka
Shou SUZUKI
Laboratory of Functional Food Science and COE Program in the 21st Century, School of Food and Nutritional Sciences, University of Shizuoka
Mok-Ryeon AHN
Laboratory of Functional Food Science and COE Program in the 21st Century, School of Food and Nutritional Sciences, University of Shizuoka
Miya KAMIHIRA
Laboratory of Functional Food Science and COE Program in the 21st Century, School of Food and Nutritional Sciences, University of Shizuoka
Yu UDAGAWA
Laboratory of Functional Food Science and COE Program in the 21st Century, School of Food and Nutritional Sciences, University of Shizuoka
Keuk-Seung BANG
Department of Food Science, Dong-A University
Tsutomu NAKAYAMA
Laboratory of Functional Food Science and COE Program in the 21st Century, School of Food and Nutritional Sciences, University of Shizuoka

Keywords: propolis, Jeju, chalcone, khellactone, 4′-methoxy-bavachromanol, lipoxygenase

JOURNAL OPEN ACCESS

2006 Volume 12 Issue 1 Pages 67-69

DOI https://doi.org/10.3136/fstr.12.67

Details

Abstract

The new chalcone, 4′-methoxy-bavachromanol (1), was isolated from propolis collected on Jeju, a southern island of Korea together with two known compounds, laserpitin (2) and isolaserpitin (3). The structure of each compound was determined by spectral methods, including mass spectrometry and 2D NMR. The IC₅₀ value of 1 against soybean lipoxygenase was 14.6μM.

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