Changes of color and volatile sulfur concentration of dried laver during storage.

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  • 干しのり貯蔵中の色調及び揮発性含硫化合物量の変化
  • 干しのり貯蔵中の色調および揮発性含硫化合物量の変化
  • ホシ ノリ チョゾウチュウ ノ シキチョウ オヨビ キハツセイ ガンリュウ カ

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Abstract

Dried layer Porphyra yezoensis was stored at 5°C and 30°C for 18 months on the purpose to observe the deterioration of color and the change of volatile sulfur concentrations during storage.<br> In case of storage at 30°C, deteriorations of color and luster of dried laver were observed after 3 months. Along with the color deterioration, the amount of dimethyl sulfide (DMS) decreased, and that of methyl mercaptan (MM) increased in dried laver. But, in case of storage at 5°C, changes in color, luster and DMS and MM contents in dried laver were not remarkable through a year, though increase of MM was observed after 14 months.<br> Dimethy1-β-propiothetin as a precursor of DMS in dried laver decreased when stored at 30°C, but when stored at 5°C, the decrease was a little. Concentration of methyl methionine sulfonium salt as one of a precursor of DMS was not change remarkably during storage at 30°C and 5°C.

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 52 (6), 1077-1080, 1986

    The Japanese Society of Fisheries Science

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