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Topic: Erythorbic acid

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	Erythorbic acid - Wikipedia, the free encyclopedia
		Erythorbic acid, formerly known as isoascorbic acid and D-araboascorbic acid is a stereoisomer of ascorbic acid.
		One investigated the effects of erythorbic acid on vitamin C metabolism in young women, no effect on vitamin C uptake or clearance from the body was found.
		A later study found that erythorbic acid is a potent enhancer of nonheme-iron absorption.
	en.wikipedia.org /wiki/Erythorbic_acid (151 words)

	Ascorbic acid - Wikipedia, the free encyclopedia
		Another method involves using iodine and a starch indicator, iodine reacts with ascorbic acid and when all the ascorbic acid has reacted the iodine is then in excess, forming a blue/fl complex with the starch indicator.
		In this titration the NBS oxidises the ascorbic acid (in the presence of potassium iodide and starch).
		Ascorbic acid and its sodium, potassium, and calcium salts are commonly used as antioxidant food additives.
	en.wikipedia.org /wiki/E300 (895 words)

	Erythorbic Acid : by Ray Sahelian, M.D. health benefit C (Site not responding. Last check: 2007-10-24)
		The aims of the present study were to evaluate the effect of erythorbic acid on iron absorption from ferrous sulfate at molar ratios of 2:1 and 4:1 (relative to iron) and to compare the effect of erythorbic acid directly with that of ascorbic acid at a molar ratio of 4:1.
		At a molar ratio of 4:1, erythorbic acid was 1.6-fold (P = 0.0002) as potent an enhancer of iron absorption as was ascorbic acid.
		Erythorbic acid is a stereoisomer of ascorbic acid commonly used as antioxidant in foodstuffs and has the same redox properties as ascorbic acid.
	www.raysahelian.com /erythorbic.html (457 words)

	708. Erythorbic acid and its sodium salt (WHO Food Additives Series 28)
		Ascorbic acid is known to increase the bioavailability of iron and the activity of erythorbic acid in this respect was examined in a haem-repletion assay in iron deficient male weanling rats.
		Erythorbic acid or ascorbic acid was fed to female Swiss Webster mice in the diet at a concentration of 5% for 2 months and then at 10% of the diet for a further 5 months; a control group received an ascorbic acid-free diet throughout.
		Erythorbic acid was fed to groups of 7 male guinea pigs, body weight 220-250g, at daily dose levels of 0, 20, 50, 100 or 400 mg together with ascorbic acid (20 mg/d).
	www.inchem.org /documents/jecfa/jecmono/v28je03.htm (9535 words)

	Linus Pauling Institute at Oregon State University
		A study of 12 males (6 smokers and 6 nonsmokers) found the bioavailability of synthetic ascorbic acid (powder administered in water) to be slightly superior to that of orange juice, based on blood levels of ascorbic acid, and not different based on ascorbic acid in leukocytes (white blood cells) (1).
		A study in 68 male nonsmokers found that ascorbic acid consumed as cooked broccoli, orange juice, orange slices, and synthetic ascorbic acid tablets are equally bioavailable, as measured by plasma ascorbic acid levels (2,3).
		The ascorbic acid released by the hydrolysis of ascorbyl palmitate appears to be as bioavailable as ascorbic acid alone (10).
	lpi.oregonstate.edu /infocenter/vitamins/vitaminC/vitCform.html (1688 words)

	Acid
		The strength of an acid may be understood by this defintion by the stability of hydronium and the solvated conjugate base upon dissociation.
		Acids are named according to the ending of their anion.
		Polyprotic acids are able to donate more than one proton per acid molecule, in contrast to monoprotic acids that only donate one proton per molecule.
	www.brainyencyclopedia.com /encyclopedia/a/ac/acid.html (1298 words)

	Does erythorbic acid enhance iron absorption? - Vitamins and Minerals Nutrition Research Newsletter - Find Articles
		Erythorbic acid (synonyms: isoascorbic acid, D-araboascorbic acid) is a stereoisomer of ascorbic acid that differs from ascorbic acid only in the relative position of the hydrogen and hydroxyl groups on the fifth carbon atom in the molecule.
		A recent investigation sought to evaluate whether erythorbic acid influences iron absorption in a dose-dependent manner and to evaluate the effect of erythorbic acid compared with that of ascorbic acid.
		Erythorbic acid appears to be a potent enhancer of iron absorption, but its lack of antiscorbutic activity limits its usefulness in iron-fortified foods.
	www.findarticles.com /p/articles/mi_m0887/is_2_23/ai_113935591 (380 words)

	Encyclopedia :: encyclopedia : Nucleic acid (Site not responding. Last check: 2007-10-24)
		Nucleic acids are found in all living cells and viruses.
		Nucleic acid, so called because of its prevalence in cellular nuclei, is the generic name of family of biopolymers.
		Nucleic acids are primarily biology's means of storing and transmitting genetic information, though RNA is also capable of acting as an enzyme.
	www.hallencyclopedia.com /Nucleic_acid (503 words)

	Propellant and explosive composition - Patent 5449423
		The composition of claim 6 wherein the organic acid fuel is ascorbic acid or erythorbic acid, or the sodium salts thereof.
		The present invention is based on the discovery that mixtures of organic acids, such as ascorbic acid or erythorbic acid, or the carbonyl or salt derivatives thereof, potassium perchlorate and, a nitrate containing oxidizing agent, such as potassium nitrate, ammonium nitrate, nitroguanidine, or mixtures thereof, when properly formulated provide a novel ignitable, e.g.
		Preferably, the organic acid "fuel" is ascorbic acid or erythorbic acid, the salts thereof (especially sodium salts) and mixtures thereof.
	www.freepatentsonline.com /5449423.html (5450 words)

	Articles - Acid (Site not responding. Last check: 2007-10-24)
		An acid (often represented by the generic formula HA) is traditionally considered any chemical compound that when dissolved in water, gives a solution with a pH of less than 7.
		Common examples include acetic acid (in vinegar) and sulfuric acid (used in car batteries).
		Nitric acid, sulfuric acid, and perchloric acid are all strong acids, whereas nitrous acid, sulfurous acid and hypochlorous acid are all weak.
	www.zdiamond.net /articles/Acid (1323 words)

	Erythorbic Acid & Sodium Erythorbate - Current Status' and Outlook by 2010 (Site not responding. Last check: 2007-10-24)
		Erythorbic acid and sodium erythorbate are chemical isomers of ascorbates, they are effective antioxidants for applications that do not require a nutritional claim for vitamin activity.
		The efficiency of erythorbates as antioxidants depends upon the particular food system, the compounds to be protected, the amount of metal contamination, and the amount of oxygen to be removed form the system.
		Erythorbic acid and sodium erythorbate are permitted food ingredients in the U.S. Japan and European Union.
	www.lhepner.com /food17.html (343 words)

	biology - Acid
		The acidity constant (or acid dissociation constant) is the equilibrium constant for the reaction of AH with water:
		Later on, Brønsted and Lowry defined an acid to be a proton donor and a base to be a proton acceptor.
		The most general definition of acids and bases is the Lewis definition, given by the American chemist Gilbert N. Lewis.
	www.biologydaily.com /biology/Acidic (1196 words)

	Electroplating iron alloys containing nickel, cobalt or nickel and cobalt - Patent 4014759
		Erythorbic acid (ascorbic and isoascorbic) and the reaction product of an aldehyde and an aromatic sulfinate act synergistically in reducing and controlling the formation of iron and thus allow a bright, leveled plate to be obtained at the higher pH range.
		This invention has probatively shown that erythorbic acid and aldehyde adducts of aromatic sulfinates such as benzene sulfinate and/or toluene sulfinate act together to prevent the oxidation and precipitation of iron ions at a pH of 4.0 to 5.5 and produce a bright plate having a wide current density range.
		Ascorbic acid, erythorbic acid, and isoascorbic acid are present in the baths in a sole or combined concentration of from 1 gram per liter to 15 grams per liter.
	www.freepatentsonline.com /4014759.html (3523 words)

	Ascorbic Acid : by Ray Sahelian, M.D. health benefit C
		Ascorbic Acid is used as an antioxidant and pH adjuster in a large variety of cosmetic formulations, the majority of which are hair dyes and colors at concentrations between 0.3% and 0.6%.
		However, because ascorbic acid is endogenously converted to oxalate and appears to increase the absorption of dietary oxalate, supplementation may increase the risk of kidney stones.
		A. Erythorbic acid is a stereoisomer of ascorbic acid with similar properties.
	www.raysahelian.com /ascorbic.html (1011 words)

	31351. Erythorbic Acid substitutes [Puerto Rico]
		Erythorbic acid chemical takes part of the acid chelation stage during a passivation procedure.
		Erythorbic acid is too expensive and unavailable, altogether prohibitive.
		Erythorbic acid is also known as Isoascorbic acid.
	www.finishing.com /313/51.shtml (203 words)

	Peak Performance - January 2005
		Ascorbic acid (vitamin C) and its isomer - erythorbic acid - are relatively strong reducing agents which combine quickly with oxygen in liquids.
		It is by this mechanism that ascorbic acid facilitates the removal of oxygen from wine by reaction with sulphur dioxide.
		In most cases only one of the isomers of ascorbic acid is added to wine as an antioxidant so accurate quantification and identification is the norm as shown in Figure 3.
	www.truepr.com /news/sgeuk/0501/004.asp (652 words)

	Patent 6,468,552
		In one embodiment, the composition comprises a tocopherol derivative, a pantothenic acid derivative, an extract of green tea, and erythorbic acid or a cosmetically acceptable salt or ester thereof.
		In one aspect, the cosmetic composition comprises tocopherol, pantothenic acid, extract of green tea, and erythorbic acid or a cosmetically acceptable salt or ester thereof.
		What is meant by a pantothenic acid derivative is pantothenic acid and cosmetically acceptable salts (e.g., sodium pantothenate or calcium pantothenate) or esters thereof.
	www.pharmcast.com /Patents/Yr2002/October2002/102202/6468552_Oxygen102202.htm (1568 words)

	WinePress.US Wine Making and Grape Growing Forum > erythorbic acid
		I noticed that the frozen cherries which I used in the recipe also contained.2 % erythorbic acid.
		I have never heard of erythorbic acid, but I am sure someone here has.
		Erythorbic acid is also known as iso-ascorbic acid which is another form of ascorbic acid or vitamin C. The recipe called for 7 campden tablets in 17 litres.
	www.winepress.us /forums/lofiversion/index.php?t661.html (864 words)

	Jens Lykkesfeldt et. al. - Effect of smoking on erythorbic acid pharmacokinetics
		While for most antioxidants this effect appears to result mainly from altered dietary habits, ascorbic acid has recently been shown to be depleted by smoking per se.
		) of erythorbic acid (smokers 357 (sd 119), non-smokers 414 (sd 142) μmol·h/l; P=0·34).
		If the relative pharmacokinetics of erythorbic acid between smokers and non-smokers compares with those of AA, our present results do not suggest that altered pharmacokinetics is likely to play a major role in the ascorbic acid depletion consistently observed in smokers.
	www.nutritionsociety.org.uk /bjn/089/bjn0890667.htm (248 words)

	Ascorbic Acid Technology
		All presently known biotechnological processes are leading to 2-keto-L-gulonic acid (KGA) as an intermediate, with either glucose or sorbitol as a starting material.
		Depending on the source of the ketogulonic acid, either from a biological or a chemical process, the downstream process will slightly be modified.
		The total residence time of the ascorbic acid product in aqueous solution, where it is susceptible to decomposition, can be kept extremely short.
	www.enco.ch /ascorbic.htm (402 words)

	Dick Gregory Global Watch
		Chitosan is a powder derived from the shells of crustaceans such as shrimp.
		Erythorbic acid is an antioxidant that enhances the effectiveness of the main ingredient.
		and Erythorbic acid and Chitosan), Citric Acid, Enrich LifAloe™
	www.dickgregory.com /Enrich_ChitoRich.html (543 words)

	Erythorbic acid, sodium salt - toxicity, ecologicial toxicity and regulatory information
		Erythorbic acid, sodium salt - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information
		Chemical Identification and Use for Erythorbic acid, sodium salt
		Sorry, no water quality standards or criteria have been established for this chemical by the U.S. or Canadian governments; however, there may be criteria established for related chemicals.
	www.pesticideinfo.org /Detail_Chemical.jsp?Rec_Id=PC34772 (705 words)

	WORLD MARKETS FOR CITRIC, ASCORBIC & ISOASCORBIC ACIDS: - Market Size, Market Share and Demand Forecast
		Citric acid, ascorbic acid and iso-ascorbic acid are major food ingredients, and also play a major role in the fermentation industry.
		Iso-ascorbic acid, introduced into the market as a cheap alternative to ascorbic acid, is losing importance, as competition from ascorbic acid is becoming stronger.
		This report reviews the markets for ascorbic acid, citric acid and for iso-ascorbic acid and puts much emphasis on the description of production processes and costs, as only a very efficient technology will ensure the survival of producers in the future.
	bcc.ecnext.com /coms2/summary_0279-108001_ITM (1938 words)

	Caffeine Sodium Benzoate
		citric acid, sodium benzoate (preserves freshness), caffeine, sodium citrate, gum arabic...
		flavors, citric acid, sodium benzoate (preserves freshness), sodium citrate, gum arabic...
		flavors, citric acid, herbs, botanical extracts, green tea, caffeine, sodium benzoate...
	sodiumbenzoate.moatsodium.com /caffeinesodiumbenzoate (762 words)

	Erythorbic Acid CAS 89-65-6 Suppliers & Manufacturers, Price (Site not responding. Last check: 2007-10-24)
		New York, USA Alfa Chem provides raw materials of the highest quality to industries such as manufacturing, Repackaging, Research, Pharmaceutical, Food and Cosmetics, as well as Universities and Hospitals.
		California, USA Apac Chemical Corportation is specialized in manufacturing sorbic acid and potassium sorbate, as wel More...
		Jiangxi, China Jiangxi Dexing Sodium Isovitamin Co., Ltd. is a producer of Sodium Erythrobate, Erythrobic Acid, D - More...
	www.chemicalregister.com /Erythorbic_Acid/Suppliers/pid5895.htm (199 words)

	Erythorbic Acid CAS 89-65-6 Suppliers & Manufacturers, Price (China)
		Erythorbic Acid CAS 89-65-6 Suppliers and Manufacturers, Price (China)
		Jiangxi, China Jiangxi Dexing Sodium Isovitamin Co., Ltd. is a producer of Sodium Erythrobate, Erythrobic Acid, D - Glucosamine Hydrochloride, N - Acetyl - D - Glucosamine, D - Glucosamine Sulfate 2kcl, etc. More...
		1 to 1 of 1 erythorbic acid suppliers
	www.chemicalregister.com /China/Erythorbic_Acid/Suppliers/pid5895.htm (74 words)

	Pepsi World - FAQs - PEPSI BRANDS
		Contains: Water, citric acid, pear juice from concentrate, natural flavors, ascorbic acid (vitamin C), sodium hexametaphosphate (to protect flavor), phosphoric acid, sodium citrate, aspartame, potassium benzoate (preserves freshness), gum arabic, potassium sorbate (preserves freshness), acesulfame potassium, red 40, ester gum, calcium disodium EDTA (to protect flavor), blue 1.
		Contains: Water, high fructose corn syrup, orange juice from concentrate, citric acid, ascorbic acid (vitamin C), sodium hexametaphosphate (to protect flavor), modified food starch, potassium benzoate (preserves freshness), natural flavors, sodium citrate, potassium sorbate (preserves freshness), ester gum, calcium disodium EDTA (to protect flavor), yellow 5, red 40.
		Contains: Water, citric acid, orange juice from concentrate, ascorbic acid (vitamin C), sodium hexametaphosphate (to protect flavor), phosphoric acid, modified food starch, sodium citrate, aspartame, potassium benzoate (preserves freshness), natural flavors, potassium sorbate (preserves freshness), ester gum, acesulfame potassium, calcium disodium EDTA (to protect flavor), yellow 5, red 40.
	www.pepsi.com /help/faqs/faq.php?viewall=yes&category=pepsi_brands (3062 words)

	Cloning and Characterization of Gluconolactone Oxidase of Penicillium cyaneo-fulvum ATCC 10431 and Evaluation of Its ...
		Phylogenetic relationships among amino acid sequences of several aldonic acid lactone oxidases and putative FAD-dependent oxidases.
		-lactone dehydrogenase, an enzyme involved in the biosynthesis of ascorbic acid in plants.
		Part I. Erythorbic acid producing strain and culture conditions.
	aem.asm.org /cgi/content/full/70/9/5503 (5586 words)

	Erythorbic Acid exporter - Erythorbic Acid manufacturers, Erythorbic Acid exporters, Erythorbic Acid factories, ...
		ComWin was incorporated in year 1992 and quickly established itself as Market Leader in API, Food Additives, Rubber Chemicals.
		Our expansion is owed to our pro-active strategic sourcing team that pro...
		TIANCE SPORTS GOODS CO.,LTD is based in the city which is the general headquarters producing-base for China of Nike Company ----- the famous city of Putian of the Fujian Province.
	www.tradekey.com /kpr-Erythorbic-Acid (204 words)

	Hamilton - HPLC
		Ascorbic and Isoascorbic Acid Spiked in Salami on
		Conditions: 4:1 Acetonitrile: 12.5 mN Citric Acid pH 3.85 Isocratic.
		Adjust pH to 3.0 with 1 N Hydrochloric Acid.
	www.hamiltoncomp.com /cgi-shl/proc.exe/hcoc?applist2191 (87 words)

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