Han, Dong published the artcileCharacterization and discrimination of Chinese marinated pork hocks by volatile compound profiling using solid phase microextraction gas chromatography-mass spectrometry/olfactometry, electronic nose and chemometrics, SDS of cas: 505-10-2, the main research area is volatile compound marinated pork hock SPE GCMS; Chinese marinated pork hocks; characterization; discrimination; key odour-active compounds; odour activity value; potential flavour markers.
The primary aim of this study was to investigate volatile constituents for the differentiation of Chinese marinated pork hocks from four local brands, Dahongmen (DHM), Daoxiangcun (DXC), Henghuitong (HHT) and Tianfuhao (TFH). To this end the volatile constituents were evaluated by gas chromatog.-mass spectrometry/olfactometry (GC-MS/O), electronic nose (E-nose) and chemometrics. A total of 62 volatile compounds were identified and quantified in all pork hocks, and 24 of them were considered as odor-active compounds because their odor activity values (OAVs) were greater than 1. Hexanal (OAV at 3.6-20.3), octanal (OAV at 30.3-47.5), nonanal (OAV at 68.6-166.3), 1,8-cineole (OAV at 36.4-133.3), anethole (OAV at 5.9-28.3) and 2-pentylfuran (OAV at 3.5-29.7) were the key odor-active compounds contributing to the integral flavor of the marinated pork hocks. According to principal component anal. (PCA) and partial least squares-discriminant anal. (PLS-DA) of GC-MS/O and E-nose data, the results showed that the marinated pork hocks were clearly separated into three groups: DHM, HHT, and DXC-TFH. Nine odor-active compounds, heptanal, nonanal, 3-carene, D-limonene, β-phellandrene, p-cymene, eugenol, 2-ethylfuran and 2-pentylfuran, were determined to represent potential flavor markers for the discrimination of marinated pork hocks. This study indicated the feasibility of using GC-MS/O coupled with the E-nose method for the differentiation of the volatile profile in different brands of marinated pork hocks.
Molecules published new progress about Chemometrics. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, SDS of cas: 505-10-2.
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