英和和英

出典:『Wikipedia』 (2011/08/02 12:41 UTC 版)

英語による解説

引用

Withanolides are a group of at least 300 naturally occurring chemical compounds. They occur as secondary metabolites primarily in genera of the Nightshade family, for example in the Tomatillo. Structurally, withanolides consist of a Steroid-backbone bound to a lactone or one of its derivatives; they are produced via oxidation of steroids. It remains unknown to what end withanolides are produced; they may act as deterrent for feeding insect larva and other herbivores. In the laboratory, many withanolides exhibited medicinally interesting properties. Genera within the nightshade family that have been found to produce withanolides include: Datura, Dunalia, Iochroma, Lycium, Nicandra, Physalis, Salpichroa, Solanum, Withania, Jaborosa.