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The expressible fluid of fish fillets. III. —Nucleic acid from unfrozen cod under various conditions
Author(s) -
Love R. M.
Publication year - 1955
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740060508
Subject(s) - nucleic acid , fillet (mechanics) , autolysis (biology) , chemistry , fish <actinopterygii> , dna , food science , biochemistry , biology , fishery , enzyme , materials science , composite material
Deoxypentosenucleic acid (DNA) was determined in the expressible fluid of cod filletsafter various treatments. Both size of fillet and time of storage in ice affected the valuesobtained, so standardization of these factors was considered essential to the study of celldamage by means of DNA measurements. It was concluded that the cell breakdownoccurring in fish kept for many days in ice was caused by bacterial action, not autolysis. Theexpressible fluid itself was found to consist mainly of intercellular fluid, plus a little plasmaexuding from the cut ends of the cells. The DNA appeared to be in true solution, althoughprobably aggregated to some extent.