Structure and Aroma of <i>γ</i>-Lactones

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  • <i>γ</i>-ラクトン類の構造と香気の検討
  • γ-ラクトン類の構造と香気の検討
  • g-ラクトンルイ ノ コウゾウ ト コウキ ノ ケントウ

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<p>The sense of smell arises from the binding of odor compounds to olfactory receptors, and the structure of odor compounds is a critical factor. However, the relationship between compound structures and receptors is highly complex and systematic knowledge of this relationship remains inadequate. This study focused on γ-lactones, which are components in the aroma of peaches. γ-Lactones consist of a 4-carbon lactone ring and often bear a hydrocarbon side chain, the length of which affects the aroma. The effects of the γ-lactone ring on aroma were investigated by synthesizing several chain esters with different cleavable bond sites and comparing the odors of the resultant compounds with those of their cyclized lactone counterparts. The results showed that the ester bond and partial structure adjacent to the ester bond played an important role in aroma of γ-lactone, while the hydrocarbon side chain length played a smaller role.</p>

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