ascorbic acid
The Columbia Encyclopedia, Sixth Edition | Date: 2008
ascorbic acid see vitamin .
Author not available, ASCORBIC ACID.,
The Columbia Encyclopedia, Sixth Edition 2008
The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press
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Ascorbic Acid Does Not Increase the Oxidative Stress Induced by Dietary Iron in C3H Mice1
The Journal of Nutrition; 2/1/2004; Premkumar, Kumpati; Bowlus, Christopher L; 3441 words
; ABSTRACT Iron is a potent prooxidant that can induce lipid peroxidation. Ascorbic acid, a potent antioxidant, has prooxidant effects in the presence of iron in vitro. We investigated whether ascorbic acid and iron co-supplementation in ascorbic acid-sufficient mice increases hepatic oxidative
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Ascorbic acid, glucose, & the immune system.(Shorts)
Townsend Letter: The Examiner of Alternative Medicine; 12/1/2006; Klotter, Jule; 548 words
; Back in 1942, Cowan, Diehl, and Baker reported, in the Journal of the American Medical Association, that 200 mg/day of vitamin C (ascorbic acid) reduced the severity and the incidence of head colds among a group of college students. At the time, the nutritional guidelines recommended just 30 mg/day
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The interaction of cigarette smoking and antioxidants. part III: ascorbic acid. (Smoking & Ascorbic Acid).
Alternative Medicine Review; 2/1/2003; Kelly, Greg; 7057 words
; Abstract The requirement for antioxidant nutrients depends on a person's exposure to endogenous and exogenous reactive oxygen species. Since cigarette smoking results in an increased cumulative exposure to reactive oxygen species from both sources, it would seem cigarette smokers might have an
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Candidate Genes and Quantitative Trait Loci Affecting Fruit Ascorbic Acid Content in Three Tomato Populations
Plant Physiology; 4/1/2007; Stevens, Rebecca; Buret, Michel; Duffé, Philippe; Garchery, Cécile; Et al; 7068 words
; ... Vicente MC, Bonierbale MW, Broun P, Fulton TM, Giovannoni JJ, Grandillo S, Martin GB, et al (1992) High density molecular linkage maps of the tomato and potato genomes. Genetics 132: 1141-1160 Tessier F, Birlouez-Aragon I, Tjani C, Guilland JC (1996) Validation ...
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Ascorbic acid synthesis in fetal and neonatal pigs and in pregnant and postpartum sows
The Journal of Nutrition; 7/1/2001; Ching, San; Mahan, Donald C; Ottobre, Joseph S; Dabrowski, Konrad; 2797 words
; Ascorbic Acid Synthesis in Fetal and Neonatal Pigs and in Pregnant and Postpartum Sows1,2 ABSTRACT The ontogeny of ascorbic acid synthesis and its concentration in fetal pigs from mid- to late gestation, and the effect of birth order and premature or normal delivery ages were evaluated. In
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Liver L-gulonolactone oxidase activity and tissue ascorbic acid concentrations in nursing pigs and the effect of various weaning ages
The Journal of Nutrition; 7/1/2001; Ching, San; Mahan, Donald C; Dabrowski, Konrad; 3896 words
; Liver L-Gulonolactone Oxidase Activity and Tissue Ascorbic Acid Concentrations in Nursing Pigs and the Effect of Various Weaning Ages1,2 ABSTRACT In Experiment 1, we evaluated liver L-gulono-y-lactone oxidase (GLO) activity and tissue concentration of ascorbic acid in young pigs from birth to
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Ascorbic acid deficiency reduces hepatic apolipoprotein A-I mRNA in scurvy-prone ODS rats
The Journal of Nutrition; 10/1/1996; Ikeda, Saiko; Horio, Fumihiko; Yoshida, Akira; Kakinuma, Atsushi; 4088 words
; Plasma lipoproteins play key roles in cholesterol transport and hence in the progress of atherosclerotic coronary diseases. Low density lipoprotein is thought to carry cholesterol to peripheral tissues, and HDL functions in the reverse cholesterol transport (Fielding and Fielding 1995, Fisher et
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Assessment of Ascorbic Acid Stability in Different Multilayered Parenteral Nutrition Bags: Critical Influence of the Bag Wall Material
JPEN, Journal of Parenteral and Enteral Nutrition; 3/1/2005; Dupertuis, Yves M; Ramseyer, Sihan; Fathi, Marc; Pichard, Claude; 3907 words
; ABSTRACT. Background: The recent development of multilayered bags has minimized ascorbic acid oxidation in parenteral nutrition (PN) admixtures. However, the gas-barrier property of multilayered bags depends on their plastic material. This study compared ascorbic acid stability in different
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Changes in Vitamin C Concentrations in Plasma and Milk from Dairy Cows After an Intramammary Infusion of Escherichia coli*
Journal of Dairy Science; 1/1/2004; Weiss, W P; Hogan, J S; Smith, K L; 3272 words
; ABSTRACT Plasma and milk concentrations of ascorbic acid and dehydro-L-ascorbic acid (DHAA) were measured before and after 21 Holstein cows (approximately 26 DIM) were given an intramammary infusion of Escherichia coli. Blood, milk from the unchallenged quarters, and milk from the challenged gland
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Iron and ascorbic acid: Proposed fortification levels and recommended iron compounds1
The Journal of Nutrition; 9/1/2003; Lynch, Sean R; Stoltzfus, Rebecca J; 7604 words
; ABSTRACT An adequate supply of dietary iron during the 1st 24 mo of life is essential for preventing iron deficiency with its attendant negative effects on mental, motor and emotional development as well as later cognitive performance. Iron reserves and the small amount of highly bioavailable iron
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Related entries from encyclopedias, dictionaries, and thesauruses
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Ascorbic Acid
Chemistry: Foundations and Applications
Ascorbic Acid Ascorbic acid or vitamin C is an antiscorbutic ... animals are able to synthesize ascorbic acid. Only primates, guinea pigs ... therefore donate electrons to free radicals such as hydroxyl ... that the major benefit of ascorbic acid with regard to cancer ...
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ascorbic acid
A Dictionary of Food and Nutrition
ascorbic acid Vitamin C , chemically l -xyloascorbic acid, to distinguish it ... erythorbic acid), which has only slight vitamin C activity. Both ascorbic acid and erythorbic acid have strong chemical-reducing properties, and are used as antioxidants ...
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ascorbic acid oxidase
A Dictionary of Food and Nutrition
ascorbic acid oxidase An enzyme in plant tissues that oxidizes ascorbic acid to dehydro-ascorbic acid; it is only released when the plant wilts or is cut. To preserve the vitamin in cooked vegetables, it is generally recommended that they be plunged ...
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Acid-Base Chemistry
Chemistry: Foundations and Applications
Acid-Base Chemistry Acids and bases have been ... of experimental chemistry. The word "acid" comes from the Latin acidus , meaning ... taste sour because they contain citric acid and ascorbic acid ( vitamin C). Another common acid is vinegar, which is the sour liquid ... a 5 percent water ...
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erythorbic acid
A Dictionary of Food and Nutrition
erythorbic acid The d -isomer of ascorbic acid , also called D-araboascorbic acid and iso-ascorbic acid, with only slight vitamin C activity. It is used in foods as an antioxidant.
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