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Characterisation of taste-active compositions, umami attributes and aroma compounds in Chinese shrimp

文献类型： 外文期刊

作者： Chen, Lihua 1 ; Zeng, Wenhua 1 ; Rong, Yuzhi 1 ; Lou, Bao 2 ;

作者机构： 1.Shanghai Inst Technol, Sch Perfume & Aroma Technol, Shanghai 201418, Peoples R China

2.Zhejiang Acad Agr Sci, Sch Inst Hydrobiol, Hangzhou 310021, Peoples R China

关键词： aroma compounds; Chinese shrimp (Fenneropenaeus chinensis); equivalent umami concentration; taste activity value; taste-active components

期刊名称：INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY （ 影响因子：3.713； 五年影响因子：3.408 ）

ISSN： 0950-5423

年卷期： 2021 年 56 卷 12 期

页码：

收录情况： SCI

摘要： Chinese shrimp is one of the most important aquatic resource in China due to its unique flavour and high nutritional value. In this study, the taste-active components including free amino acids (FAAs), 5'-nucleotides, organic acids, inorganic ions, trimethylamine oxide (TMAO) and betaine were analysed. The synergistic effect between amino acids and 5'-nucleotides was determined by partial least squares (PLS) analysis. The taste activity value (TAV) and equivalent umami concentration (EUC) were calculated to analyse the major taste-active components and umami attributes. Then, the aroma compounds were extracted by simultaneous distillation extraction (SDE), head-space solid-phase microextraction (HS-SPME) and supercritical fluid extraction (SFE) methods, respectively, and identified by gas chromatography-mass spectrometry (GC-MS). Arginine (Arg), glycine (Gly), guanosine 5'-monophosphate (5'-GMP), inosine-5 '-monophosphate (5'-IMP), de-nosine-5 '-monophosphate (5'-AMP), succinic acid, lactic acid and inorganic ions with TAV higher than 1 contributed greatly to the taste. The umami intensity for 100 g of Chinese shrimp was equivalent to 4.58 g monosodium glutamate (MSG), indicating that Chinese shrimp had relatively high umami taste value. Ninety-seven volatile compounds including esters, alcohols, acids, aldehydes, ketones, heterocycles, aromatics and alkanes were identified. This research might help consumers to understand the flavour compositions and promote the development of flavour products of Chinese shrimp.

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