4.7 Article

Seasonal variations in free amino acid, 5′-nucleotide, and lipid profiles of scallop (Patinopecten yessoensis) revealed by targeted and untargeted metabolomic approaches

Journal

LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 154, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.lwt.2021.112881

Keywords

Patinopecten yessoensis; Seasonal variation; Lipid composition; Free amino acid; 5 '-nucleotides

Funding

  1. National Natural Science Foundation of China [32072247]
  2. Key Science and Technology Program of Liaoning Province [2020JH1/10200001]

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This study found that the content of free amino acids and 5'-nucleotides in scallops collected in summer was significantly higher than in other seasons, with adenosine 5'-monophosphate, glycine, and alanine being dominant during this period. The lipid composition of scallops varied significantly, with the unsaturation degree of triacylglycerols increasing from July to November and the highest proportion of polyunsaturated phospholipids appearing in August and September.
Scallop is popular for its delicious taste and rich nutrition value. This study investigated the metabolomic changes in free amino acid (FAA), 5'-nucleotide, and lipid composition of scallops collected in different seasons. Results showed that the content of the FAA and 5'-nucleotide in summer was significantly higher than in other seasons. Adenosine 5'-monophosphate, glycine, and alanine were dominant from June to August. A total of 176 lipids, including 50 triacylglycerols (TAG), 60 phosphatidylcholines (PC), and 30 phosphatidylethanolamines (PE), were identified in the scallop adductor muscle. PC and PE were dominant from February to June, and TAG was dominant in November. The unsaturation degree of TAG was increased from July to November, and the highest proportion of polyunsaturated phospholipids appeared in August and September. Overall, scallops have high nutritional value in summer. This study is helpful for the development of scallop products with high nutrition and high value.

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