Metabolism in marine flatfish-II. Protein digestion in dover sole (Solea solea L.)

J. Clark, N. L. MacDonald, J. R. Stark

    Research output: Contribution to journalArticle

    Abstract

    1. 1. The digestive tracts of adult and juvenile Dover sole were examined for protease activities. 2. 2. A pepsin-like protease with an optimal pH value of 1.7 predominated in the stomach region, but the main endoprotease action in the foregut, midgut and hindgut regions was optimal in the range of pH 9.5-10.5 and showed good activity towards elastin orcein. 3. 3. Experiments using synthetic substrates suggested the presence of chymotrypsin- and trypsin-like activities optimal between pH 7 and 8. Collagenase activity was also shown to exist in this pH region. 4. 4. The presence of enzymes corresponding to carboxypeptidases a and b and leucine aminopeptidase was indicated. 5. 5. The possible significance of these results to the farming of Dover sole is discussed. © 1985.

    Original languageEnglish
    Pages (from-to)217-222
    Number of pages6
    JournalComparative Biochemistry and Physiology Part B: Comparative Biochemistry
    Volume81
    Issue number1
    Publication statusPublished - 1985

    Fingerprint Dive into the research topics of 'Metabolism in marine flatfish-II. Protein digestion in dover sole (Solea solea L.)'. Together they form a unique fingerprint.

    Cite this