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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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.About:
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.read more
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Journal Article
Effect of preharvest chitosan application on bioactive compounds of and sunflower sprouts during storage.
S. Supapvanich,V. Chimsoontorn,W. Anan,P. Boonyaritthongchai,Racha Tepsorn,C. Techavuthiporn +5 more
TL;DR: The effects of pre-harvest chitosan treatments on antioxidant activities and bioactive compounds of sunflower sprouts during cold storage were investigated in this paper, where the sprouts were watered with 0.1, 0.5 and 1.0 % (w/v) solutions prior harvest 24 h.
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Quantitative determination of various vitamins of eluate of the horny layer of human skin in subjects without skin disease
G. Pascher,Roeckl H +1 more
TL;DR: Ascorbinsaure wurde auf chemischem Wege, die ubrigen Vitamine nach mikrobiologischen Methoden bestimmt, und die Konzentration von Aneurin wurden im wasrigen Extrakt des mittels Gilettemesser abschabbaren Anteiles des menschlichen stratum corneum disjunctum bestimmT.
Changes of Ascorbic Acid Contents in Various Market Forms of Spinach (Spinacea oleracea L.) during Postharvest Storage in Light and Dark Conditions
TL;DR: In this article, changes in ascorbic acid contents in various market forms of spinach (Spinacia oleracea L.) during postharvest storage in light (20-25 µmole m -2 s -1 ) and dark conditions were investigated.
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Possible role of nonenzymatic antioxidants in hydroprimed sunflower seeds under heat stress
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Pituitary-adrenal axis activation as a function of hypothalamic 5-hydroxytryptamine titre.
TL;DR: It is proposed that the titre of 5-HT in the hypothalamus is responsible for the activation of the hypothalamic-adenohypophysial-adrenal axis and the stimulatory effect of Serpasil upon ACTH release was decreased.
References
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Journal ArticleDOI
The determination of ascorbic acid in whole blood and urine through the 2,4-dinitrophenylhydrazine derivative of dehydroascorbic acid
Joseph H. Roe,Carl A. Kuether +1 more
Journal ArticleDOI
The determination of dehydroascorbic acid and ascorbic acid in plant tissues by the 2,4-dinitrophenylhydrazine method
Joseph H. Roe,M. Jane Oesterling +1 more
Journal ArticleDOI
The chemical behaviour of dehydro-l-ascorbic acid in vitro and in vivo.
Journal ArticleDOI
The isolation of barium and calcium diketo-l-gulonates and the biological significance of 2:3-diketo-l-gulonic acid.
Journal ArticleDOI
The determination of 2:3-diketo-l-gulonic acid.
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The determination of ascorbic acid in whole blood and urine through the 2,4-dinitrophenylhydrazine derivative of dehydroascorbic acid
Joseph H. Roe,Carl A. Kuether +1 more