Common aroma‐active components of propolis from 23 regions of China

Abstract

The concentrations of aroma-active components were closely related to the regions from a discrete-point map by the first three principal components. It was confirmed that components with high concentrations did not always play important roles in odour contribution, for odour level was linked with their threshold. OAVs could reflect the level of odour exactly according to the approximate result from the comparison between OAVs and sensory evaluation scores.