海藻の生化学の研究-IV : 養殖のりの化学成分,品質と環境との関係

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The relation between the chemical constituents of Porphyra yezoensis and environmental factors was examined by dipping frozen laver nets every month and harvesting the fronds after one month at many culture grounds in the Kuwana district for two successive seasons, from December 1967 to March 1968 and from November 1968 to March 1969. The results are summarized as follows; 1) The total nitrogen and phosphorus contents of the laver reached its maxima in February 1968 and January 1969, when laver of superior quality was obtained. Both these chemical constituents decreased remarkably in March for both seasons and laver of an inferior quality was harvested. 2) The tendency for carbohydrate contents to become higher in the laver of the inferior quality was also recognized in the present study. The contents increased markedly at the end of both seasons. 3) A linear relationship was found between zinc and the protein contents. In laver fronds showing low values for protein nitrogen and phosphor elements such as manganese, copper, aluminium, calcium and sulfate were found to be rich.
公益社団法人日本水産学会の論文