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Ascorbic acid oxidase and ascorbic acid oxygenase of Myrothecium verrucaria
Archives of Biochemistry and Biophysics, 1965Abstract Ascorbic acid (AA) is oxidized by two soluble enzyme systems in spores and mycelium of the fungus, Myrothecium verrucaria. One system, for which the name AA Oxygenase is suggested, catalyzes the reaction: AA + O2 → oxalic acid + threonic acid. Such a system has not been reported before. The enzyme appears to be specific for AA. Ferrous ions,
G A, White, R M, Krupka
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Ascorbic Acid in Steroidogenesis
Nature, 1967THE adrenal glands contain the highest concentration of ascorbic acid of any tissue in the body. Changes in the concentrations of ascorbic acid and cholesterol are related to steroid secretion in the adrenal1. Although it has been suggested that ascorbic acid might play a primary part in Steroidogenesis2, its physiological role in the adrenal has not ...
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ASCORBIC ACID STUDIES IN ABORIGINES
Journal of Paediatrics and Child Health, 1973Twelve ascorbic acid saturation tests were performed on Aboriginal children aged from six weeks to three years admitted to the Royal Children's Hospital, Brisbane, and sixty‐five were performed on thirty‐two Aboriginal babies aged two days to fifteen months at Cherbourg Aboriginal Settlement.
Stuart J.E., Connellan P.
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The American Journal of Clinical Nutrition, 1991
In this report literature on transport and function of ascorbic acid in ocular tissues is reviewed. The role of ascorbic acid in various regions of the eye is not well understood. It appears one important function of this compound is protection against oxidative damage, particularly photoinduced damage.
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In this report literature on transport and function of ascorbic acid in ocular tissues is reviewed. The role of ascorbic acid in various regions of the eye is not well understood. It appears one important function of this compound is protection against oxidative damage, particularly photoinduced damage.
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Ascorbic Acid and Connective Tissue
1996Observations of deficient wound healing in sailors suffering from scurvy have been reported by explorers and physicians since the sixteenth century, together with the observation that citrus could have curative properties. Thereafter, Wolbach and Howe (1926) found that in scorbutic guinea pigs there was a deficient production of intercellular matrix ...
Ronchetti I. P. +2 more
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1996
Tissues of the eye are highly specialized in order to permit light to enter and come to a focus at the posterior inner surface of the globe where it is detected by photoreceptors in the retina. Photoreceptor signals then undergo complex processing by the neural cells of the retina prior to transmission of the signal to the brain via the optic nerve ...
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Tissues of the eye are highly specialized in order to permit light to enter and come to a focus at the posterior inner surface of the globe where it is detected by photoreceptors in the retina. Photoreceptor signals then undergo complex processing by the neural cells of the retina prior to transmission of the signal to the brain via the optic nerve ...
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Ascorbic acid and alkaptonuria
European Journal of Pediatrics, 1992P, Kamoun +4 more
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The Biosynthesis of Ascorbic Acid
1955Publisher Summary Ascorbic acid is present in nearly all tissues, in plants and animals. All of the higher plants and most animals, with the exception of the primates and the guinea pig, can synthesize it. The distribution of the vitamin in animal tissues has been reviewed by Giroud.
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