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The determination of diketo l-gulonic acid, dehydro-l-ascorbic acid, and l-ascorbic acid in the same tissue extract by the 2, 4-dinitrophenylhydrazine method.

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TLDR
Methods for determinations of vitamin C dehydro-Z-ascorbic (DHA), DHA, and DKA in the presence of each other are reported, indicating that these derivatives are identical substances.
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This article is published in Journal of Biological Chemistry.The article was published on 1948-05-01 and is currently open access. It has received 268 citations till now. The article focuses on the topics: Ascorbic acid.

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Ascorbic acid metabolism in castrated rats.

TL;DR: In castrated rats there was an appreciable decrease in the ascorbic acid and dehydroascorbic acid contents of the liver, while on the other hand, there was a significant increase in the diketogulonic acid content of liver.
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Ascorbate-dependent expression of ubiquitin genes in guinea pigs

TL;DR: In an attempt to characterize a gene(s), of which the expression is ascorbate-dependent, a cDNA fragment encoding ubiquitin was isolated from a subtracted cDNA library constructed from spleen RNAs of as Corby-deficient or -replete guinea pigs, the ubiX gene was expressed animal-dependently.
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Rosa davurica Pall., a useful Rosa species for functional rose hip production with high content of antioxidants and multiple antioxidant activities in hydrophilic extract

TL;DR: In this paper, the authors used colorimetric detections of DPPH and ORAC, ESR-ST methods were employed for evaluating antioxidant ability, which can determine scavenging activities against naturally-occurring ROS i.e. superoxide anion radical (·O2−), hydroxyl radical (HO·), alkoxyl radical(RO·) and singlet oxygen (1O2), individually.
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