Effect of different thermal processing methods on water-soluble taste substances of tilapia fillets
文献类型： 外文期刊
作者： Li, Rui 1 ; Sun, Zuli 2 ; Zhao, Yongqiang 1 ; Li, Laihao 1 ; Yang, Xianqing 1 ; Chen, Shengjun 1 ; Wei, Ya 1 ; Li, Chunsheng 1 ; Wang, Yueqi 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Natl R&D Ctr Aquat Prod Proc, South China Sea Fisheries Res Inst, Key Lab Aquat Prod Proc,Minist Agr & Rural Affair, Guangzhou 510300, Peoples R China
2.Yantai Univ, Coll Life Sci, Yantai 264005, Peoples R China
3.Dalian Polytech Univ, Collaborat Innovat Ctr Seafood Deep Proc, Dalian 116034, Peoples R China
关键词： Tilapia; Thermal processing; Taste; Free amino acids; Nucleotides; Inosine monophosphates
期刊名称：JOURNAL OF FOOD COMPOSITION AND ANALYSIS （ 影响因子：4.52； 五年影响因子：4.942 ）
ISSN： 0889-1575
年卷期： 2022 年 106 卷
页码：
收录情况： SCI
摘要： The composition of free amino acids (FAAs) and nucleotides has an important effect on fish taste. In this study, the content of FAAs and nucleotides in raw, steamed, boiled and air-fried tilapia fillets were quantitatively analyzed. Thermal processing significantly influenced the composition of FAAs and nucleotides in tilapia. Moreover, there were substantial differences in the nutritional composition of tilapia processed by steaming, boiling and air frying. Compared with raw fillets, the total FAA (TFAA) increased after steaming, boiling, and air frying. The main umami and sweet amino acids in tilapia fillets were aspartic acid and glycine. The total nucleotide content of fresh tilapia was 299 mg/100 g, which increased to 305 and 366 mg/100 g after steaming and air frying, respectively, and decreased to 273 mg/100 g after boiling. The main taste nucleotide inosine monophosphate (IMP) with a taste activity value greater than 1, contributed greatly to the taste of tilapia. Equivalent umami concentration was used for taste evaluation: air frying > steaming > boiling. Therefore, our findings establish that the water-soluble taste substances of tilapia fillets, and the mutual regulatory effects of different compounds varied with different thermal processing methods. Hence, tilapia can be thermally processed according to different taste requirements.
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