Volatile Substances in Different Parts of Female Eriocheir sinensis

LIN Jia-liang;MIAO Fang-fang;CAI Jiang-jia;ZHOU Jun;LI Ye;WANG Chunlin;ZHANG Di-jun;TONG Qian-qian;HUANG Jian;SU Xiu-rong;School of Marine Science,Ningbo University;Beijing Purkinje General Instrument Co.,Ltd;

Female Eriocheir sinensis;;Volatile substances;;Electronic nose;;HS-SPME-GC-MS

The goal of this study was to examine the volatile substances in the different parts of female Eriocheir sinensis in harvest season and to access how these change with temperature fluctuations. This data will provide guidance for processing. Electronic nose and headspace solid-phase microextraction- gas chromatography- mass spectrometry( HSSPME-GC-MS) were used to detect and analyze changes in the volatile substances. The results showed that the electronic nose could detect changes in aroma before and after heating with high sensitivity. The smell of fresh female crab changed notably when heated to 100° C and 150° C. Using GC-MS,101,130 and 113 volatile substances were identified in fresh female crabs,female crabs heated to 100° C and female crabs heated to 150° C. Among these,the majority of the volatile components were compounds such as alcohols,ketones,aldehydes,phenols, esters and hydrocarbon. Fresh female crab has special smelling of fish,This is mainly caused by trimethylamine and other substances; At 100°C,female crab sent out rich aroma,mainly attributed to aldehydes and ketones such as nonanal and 6- methyl- 5- heptene- 2- one. Finally,at 150°C,female crab presented a grilled smell,mainly attributed to furans and pyrazines such as 2,5- dimethyl pyrazine and 2- acetyl pyrrole. The volatiles of female crab different parts were changed a lot after heating,electronic nose and HS-SPME-GC-MS can analysis the volatile substances changes of the female crab at different heating temperatures.