Odor profiles of hepatopancreas and gonad of Eriocheir sinensis by sensory analysis, electronic nose, and GC–MS analysis

摘要

The odor profiles of the hepatopancreas and gonad of Eriocheir sinensis were evaluated by sensory analysis, electronic nose, and gas chromatography-mass spectrometry (GC–MS) analysis. The results of sensory analysis and E-nose showed good correlation, which indicated that the hepatopancreas and gonad of female crabs both contributed to the overall aroma of “XieHuang”, while only the hepatopancreas of male crabs played an important part in the overall aroma of “XieGao”. For further GC–MS analysis, a total of 53 volatile compounds were identified and quantified. The quantity of volatile compounds in each category of hepatopancreas were similar to that of the mixture samples (XieHuang/XieGao). However, the differences between gonad and the mixture samples were mainly focused in aldehydes, ketones, furans, S-containing compounds, and N-containing compounds, which mainly include 2-methylbutanal, 2-methyl-2-butenal, acetone, 4-isopropylpyridine, and 2-isobutyl-4-methylpyridine in female crabs, and 2-methylpropanal, 2-methylbutanal, (E,E)-2,4-heptadienal, acetone, 1-octen-3-one, 2-butanone, dimethyl sulfide, and 4-isopropylpyridine in male crabs.