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|Section2= |Section3= }} Lupinine is a bitter tasting quinolizidine alkaloid present in ''Lupinus'' species (lupins), plants of the family Fabaceae. The scientific literature contains many reports on the isolation and synthesis of this compound. The characteristically bitter taste of lupin beans, attributable to the alkaloids which they contain, renders them unsuitable for human and animal consumption. However, because lupin beans have potential nutritional value due to their high protein content, efforts have been made to reduce their alkaloid content,〔 as well as to develop "sweet" varieties of ''Lupinus''. ==Isolation== One of the earliest isolations of lupinine, from ''Lupinus palmeri'' collected in Utah, USA, is that reported by Couch, who was able to obtain crystalline lupinine without the use of chromatographic techniques. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「lupinine」の詳細全文を読む スポンサード リンク
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