数字农科院2.0

Characterization And Differentiation Of Boiled Pork From Tibetan, Sanmenxia And Duroc X (Landrac X Yorkshire) Pigs By Volatiles Profiling And Chemometrics Analysis

文献类型： 外文期刊

作者： Han, D; Zhang, CH; Fauconnier, ML; Mi, S

作者机构：

关键词： Gc-Ms/O; E-Nose; Pork Breeds; Odour-Active Compounds; Potential Flavour Markers

期刊名称： FOOD RESEARCH INTERNATIONAL

ISSN： 0963-9969

年卷期： 2020 年 130 卷

页码：

收录情况： JCR（2021版） ; EI（2021版）

摘要： To characterize and differentiate boiled pork from three different pig breeds (Tibetan, Sanmenxia and Duroc x (Landrace x Yorkshire)), the volatile compounds in each were analysed by gas chromatography-olfactometry-mass spectrometry (GC-MS/O) and electronic nose (E-nose) combined with chemometrics analysis. In total, 61 volatile compounds were identified, among which 25 compounds were selected as odour-active compounds in boiled pork. Moreover, seven odour-active compounds (hexanal, nonanal, 1-octen-3-ol, dimethyl disulphide, heptanal, 2-pentylfuran and 2-ethylfuran) were the main contributors to the integral flavour of boiled pork due to their higher odour activity values (OAVs) ranging from 17.3 to 524.2. The odour-active compounds were examined by principal component analysis (PCA), agglomerative hierarchical clustering (AHC) and partial least squares-discriminant analysis (PLS-DA). The results showed that boiled pork from the three pig breeds could be clearly distinguished, and twelve odour-active compounds, including (E,E)-2,4-decadienal, ethyl hexanoate, dimethyl disulphide, hexanal, 2-acetyithiazole, (E)-2-nonenal, 1-octen-3-ol, (E,E)-2,4-nonadienal, heptanal, (E)-2-octen-1-ol, styrene and (E)-2-octenal, were determined as potential flavour markers for discrimination. This study indicated that GC-MS/O and E-nose with chemometrics analysis are feasible methods to characterize and discriminate boiled pork from three pig breeds.

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