Results 261 to 270 of about 58,676 (291)
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The chemiluminescence of riboflavin
Archives of Biochemistry and Biophysics, 1953Abstract 1. 1. It has been found that the oxidation of riboflavin with peroxide produces light of approximately the same color as the fluorescence of riboflavin. 2. 2. Data concerning the temperature dependence of the reaction have been presented. 3. 3. Optimal luminescence without added metallic activators occurs around pH 7–8. 4. 4.
Bernard L. Strehler, Charles S. Shoup
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Experientia, 1962
Le spectre d'absorption, les caracteristiques luminescentes et photochimiques de la riboflavine sont presentes. L'interpretation des donnees experimentales d'autres auteurs sur la decomposition photochimique de l'eau sensibilisee par la riboflavine est critiquee.
Judith S. Bellin +2 more
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Le spectre d'absorption, les caracteristiques luminescentes et photochimiques de la riboflavine sont presentes. L'interpretation des donnees experimentales d'autres auteurs sur la decomposition photochimique de l'eau sensibilisee par la riboflavine est critiquee.
Judith S. Bellin +2 more
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EcoSal Plus, 2010
The biosynthesis of riboflavin requires 1 equivalent of GTP and 2 equivalents of ribulose phosphate. The first committed reactions of the convergent pathway are catalyzed by GTP hydrolase II and 3,4-dihydroxy-2-butanone 4-phosphate synthase.
Markus Fischer, Adelbert Bacher
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The biosynthesis of riboflavin requires 1 equivalent of GTP and 2 equivalents of ribulose phosphate. The first committed reactions of the convergent pathway are catalyzed by GTP hydrolase II and 3,4-dihydroxy-2-butanone 4-phosphate synthase.
Markus Fischer, Adelbert Bacher
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Applied Microbiology and Biotechnology, 2016
Riboflavin (vitamin B2) production has shifted from chemical synthesis to exclusive biotechnological synthesis in less than 15 years. The underlying extraordinary achievement in metabolic engineering and bioprocess engineering is reviewed in this article with regard to the two most important industrial producers Bacillus subtilis and Ashbya gossypii ...
Enoch Y. Park +4 more
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Riboflavin (vitamin B2) production has shifted from chemical synthesis to exclusive biotechnological synthesis in less than 15 years. The underlying extraordinary achievement in metabolic engineering and bioprocess engineering is reviewed in this article with regard to the two most important industrial producers Bacillus subtilis and Ashbya gossypii ...
Enoch Y. Park +4 more
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2017
Riboflavin, sometimes called vitamin B2, is essential for the intermediary metabolism of carbohydrates, amino acids, and lipids. It is widely distributed in many foods, including green, leafy vegetables, and meat and dairy products. It is water soluble and its enteric absorption is facilitated by specific transporters after the vitamin is hydrolyzed in
Gerald F. Combs, Jr., James P. McClung
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Riboflavin, sometimes called vitamin B2, is essential for the intermediary metabolism of carbohydrates, amino acids, and lipids. It is widely distributed in many foods, including green, leafy vegetables, and meat and dairy products. It is water soluble and its enteric absorption is facilitated by specific transporters after the vitamin is hydrolyzed in
Gerald F. Combs, Jr., James P. McClung
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The metal chelates of riboflavin and riboflavin monophosphate
Journal of Inorganic and Nuclear Chemistry, 1973Abstract The metal chelates of riboflavin and its monophosphate ester, with bivalent transitional metal ions, Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) in a 1:1 mole ratio, have been studied potentiometrically at 35°C and μ = 0·1.
M. M. Taqui Khan, M. Srinivas Mohan
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Archives of Dermatology, 1956
It is with apprehension that one reports any new form of treatment for psoriasis. However, the results with a new form of riboflavin have been so encouraging in a limited number of cases that this preliminary report is issued. Relatively recent discoveries on the mode of action of riboflavin have suggested its use in some of the scaly skin diseases of
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It is with apprehension that one reports any new form of treatment for psoriasis. However, the results with a new form of riboflavin have been so encouraging in a limited number of cases that this preliminary report is issued. Relatively recent discoveries on the mode of action of riboflavin have suggested its use in some of the scaly skin diseases of
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2001
The biosynthesis of one riboflavin molecule requires one molecule of GTP and two molecules of ribulose 5-phosphate. The imidazole ring of GTP is hydrolytically opened, yielding a 4,5-diaminopyrimidine that is converted to 5-amino-6-ribitylamino-2,4(1H,3H)-pyrimidinedione by a sequence of deamination, side chain reduction, and dephosphorylation ...
Markus Fischer +7 more
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The biosynthesis of one riboflavin molecule requires one molecule of GTP and two molecules of ribulose 5-phosphate. The imidazole ring of GTP is hydrolytically opened, yielding a 4,5-diaminopyrimidine that is converted to 5-amino-6-ribitylamino-2,4(1H,3H)-pyrimidinedione by a sequence of deamination, side chain reduction, and dephosphorylation ...
Markus Fischer +7 more
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1986
Riboflavin deficiency diminishes the rate of growth of spontaneous tumors in experimental animals but enhances the carcinogenicity of specific drugs such as the azo dyes, which are degraded by a microsomal hydroxylase system requiring riboflavin. Human esophageal cancer has been epidemiologically associated with riboflavin deficiency, but the precise ...
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Riboflavin deficiency diminishes the rate of growth of spontaneous tumors in experimental animals but enhances the carcinogenicity of specific drugs such as the azo dyes, which are degraded by a microsomal hydroxylase system requiring riboflavin. Human esophageal cancer has been epidemiologically associated with riboflavin deficiency, but the precise ...
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Riboflavin Deficiency and Preeclampsia
Obstetrics & Gynecology, 2000To examine in a prospective study riboflavin deficiency as a predisposing factor for preeclampsia in a high-risk collective of pregnant women in Zimbabwe.At an antenatal clinic in Bulawayo, Zimbabwe, 154 women at increased risk for preeclampsia were observed prospectively until delivery.
Johannes Frühauf +5 more
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