Abalone (<i>Hariltis discus):</i> Seasonal Variations in Chemical Composition and Textural Properties

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<jats:title>ABSTRACT</jats:title><jats:p>Seasonal changes in adenosine 5′‐triphosphate, total free amino acids, and total oligopeptides in abalone meat were analyzed. Levels were higher in summer and lower in winter. In both seasons, the most abundant free amino acid was taurine followed by arginine, glycine, glutamine, and glutamic acid. The largest peptide‐bond amino acid was glutamic acid + glutamine. The collagen content decreased in summer and increased in winter. The breaking stress values of the meat were low in summer and high in winter, indicating that summer abalone would be more tender. Scanning electron microscopy revealed the collagen network was more compact in winter.</jats:p>

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