Author's Organization：Department of Food and Nutrition, Faculty of Science of Living, Osaka City University Department of Food and Nutrition, Faculty of Science of Living, Osaka City University Department of Food and Nutrition, Faculty of Science of Living, Osaka City University
Two new diarylheptanoids, meso-3, 5-diacetoxy-1, 7-bis(4-hydroxy-3-methoxyphenyl)heptane (3a) and 3, 5-diacetoxy-1-(4-hydroxy-3, 5-dimethoxyphenyl)-7-(4-hydroxy-3-methoxyphenyl)heptane (4a) were isolated from the rhizomes of ginger (Zingiber officinale ROSCOE), together with dehydroxytetrahydrocurcumin (gingerenone A, 1) and hexahydrocurcumin (2). Their structures were elucidated on the basis of chemical and spectroscopic evidence.
