Tissue ascorbic acid and a liver dehydroascorbatase in guinea-pigs.
The extraction, partial purification and assay of a dehydroascorbatase from guinea-pig liver is described. There was no evidence that changes in dehydroascorbatase activity could account for the modified tissue ascorbic acid concentrations associated with aging or with the ingestion of fluoride, flavonoids or anthocyanin material.
D000818:Animals; D000872:Anthocyanins / Q000494:pharmacology; D001205:Ascorbic Acid / Q000378:metabolism*; D002265:Carboxylic Ester Hydrolases / Q000378:metabolism*; D003682:Dehydroascorbatase / Q000378:metabolism*; D005459:Fluorides / Q000494:pharmacology; D006168:Guinea Pigs; D008099:Liver / Q000201:enzymology*; D011794:Quercetin / Q000494:pharmacology
D000872:Anthocyanins; D011794:Quercetin; D002265:Carboxylic Ester Hydrolases; D003682:Dehydroascorbatase; D001205:Ascorbic Acid; D005459:Fluorides