Characterization of bloom formation on open sun-dried squid (Illex argentinus): A chemical composition perspective

IF 8.5 1区农林科学 Q1 CHEMISTRY, APPLIED Food Chemistry Pub Date : 2025-03-01 DOI:10.1016/j.foodchem.2025.143647

Fu-Yuan Ma , Pratik Nayi , Tzou-Chi Huang , Ho-Hsien Chen

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Abstract

A modified intermittent sun-drying process was conducted to investigate the mechanism and chemical composition of bloom formation on dried squid (Illex argentinus). The bloom layer on the squid surface consisted of free amino acids and fat. Fat and free amino acid components were extracted and analyzed using SEM-EDX, FT-IR, GC, and HPLC. Nitrogenous and fatty acid-containing crystals in the bloom were characterized. The nitrogenous fraction primarily contained taurine (866 ± 177 mg/g dry weight), glycine (82 ± 7 mg/g DW), alanine (381 ± 56 mg/g DW), and glutamic acid (178 ± 26 mg/g DW), whereas the fat fraction was rich in palmitic acid (29 %), eicosapentaenoic acid (16 %), and docosahexaenoic acid (41 %). Tempering treatments at night facilitated water redistribution and the migration of amino acids and fat to the surface. The dried squid was stored in a desiccator at 30 ± 3 °C with a saturated NaCl solution to maintain 75 % humidity. After 10 days, surface blooming occurred, enhancing the distinctive organoleptic properties of sun-dried squid.

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来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.