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Analysis of Volatile Compounds in Sea Bass (Lateolabrax japonicus) Resulting from Different Slaughter Methods Using Electronic-Nose (E-Nose) and Gas Chromatography-Ion Mobility Spectrometry

文献类型： 外文期刊

作者： Wang, Yueqi 1 ; Li, Jinxing 1 ; Wu, Yanyan 1 ; Yang, Shengyuan 4 ; Wang, Di 1 ; Liu, Qiang 5 ;

作者机构： 1.Chinese Acad Fishery Sci, Natl Res & Dev Ctr Aquat Prod Proc, Minist Agr & Rural Affairs Peoples Republ China, Key Lab Aquat Prod Proc,South China Sea Fisheries, Guangzhou 510300, Peoples R China

2.Dalian Polytech Univ, Collaborat Innovat Ctr Seafood Deep Proc, Dalian 116034, Peoples R China

3.Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang 524088, Peoples R China

4.Lingnan Normal Univ, Coll Food Sci & Engn, Zhanjiang 524048, Peoples R China

5.Zhuhai Qiangjing Food Co Ltd, Zhuhai 519100, Peoples R China

关键词： gas chromatography-ion mobility spectrometry (GC-IMS); electronic nose (E-nose); sea bass; slaughter method; fingerprint; principal component analysis (PCA)

期刊名称：MOLECULES （ 影响因子：4.412； 五年影响因子：4.588 ）

ISSN：

年卷期： 2021 年 26 卷 19 期

页码：

收录情况： SCI

摘要： Sea bass (Lateolabrax japonicus) is known for its unique flavor and high nutritional value. In this study, the influence of slaughter methods on the volatile compounds (VOCs) in sea bass was investigated using electronic nose (E-nose) technology and gas chromatography-ion mobility spectrometry (GC-IMS). VOCs in raw and cooked sea bass resulting from different slaughter methods were effectively distinguished using both techniques. Aldehydes, ketones, and alcohols were associated with the basic flavor of sea bass, whereas esters, organic acids, and furans enriched the aroma. In raw sea bass, the fishy odor was the strongest in the HSD group (head shot control death), followed by that in the IFD (ice faint to death) and BDS (bloodletting to death) groups. The VOC content increased and stabilized after steaming, enhancing pleasant odors such as fatty and fruity aromas. In cooked sea bass, the content of diacetyl and ethanol was the highest in the EAD group (eugenol anesthesia to death), which may be a residue of eugenol, imparting a distinct irritating chemical odor. Furthermore, abundant (E)-2-octenal, 2-heptanone, benzaldehyde, and esters in the BDS group imparted a strong, pleasant aroma. The findings indicate that heart puncture and bloodletting is the preferred slaughter method to maintain sea bass quality, providing new insights into the volatile changes in sea bass induced by different slaughter methods.

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