L-Ascorbic acid 6-palmitate

L-Ascorbic acid 6-palmitate E304 3-oxo-L-gulofuranolactone 6-palmitate vitamin C palmitate. 

Ascorbic acid palmitate L-Ascorbic acid palmitate L-Ascorbic acid 6-palmitate. See Ascorbyl palmitate... 

Synonyms L-Ascorbic acid, 6-hexadecanoate Ascorbic acid palmitate L-Ascorbic acid palmitate L-Ascorbic acid 6-palmitate 6-0-Palmitoylascorbic acid Palmitoyl L-ascorbic acid Definition Ester of ascorbic acid and palmitic acid Empiricai C22H38O7... 

O-Paimitoyi-L-ascorbic acid (ascorbyi palmitate) Extracts of naturai origin rich in tocopherols Synthetic a-tocopheroi Synthetic y-tocopheroi Synthetic <5-tocopheroi... 

The main sources of vitamin C are green vegetables and citrus fruit. Animal tissue contains vitamin C, mainly in the kidneys and liver. The level of vitamin C in food is rapidly reduced during cooking or storage due to oxidation or water dissolution. It is added to food as an antioxidant (with no specified limit on the level of use) or as a supplement (with a maximum recommended daily intake of 3000mg/day). The forms admitted are L-ascorbic acid (AA), L-ascorbyl 6-palmitate, sodium, calcium, or potassium L-ascorbate [403]. 

Arsenic Specifications Policy, 2 Arsenic Test, 755 Ascorbic Acid, 33 l-Ascorbic Acid, 33 Ascorbyl Palmitate, 34 Ash (Acid-Insoluble), 748 Ash (Total), 748 L-Asparagine, 35 Aspartame, 35, (Sl)4 Aspartame-Acesulfame Salt, (S3)5, 96 dl-Aspartic Acid, 36, (S3)7 l-Aspartic Acid, 37, (S2)l, (S3)7 L-a-Aspartyl-2-methyl ester Compound with 6-Methyl-l,2,3-oxathiazin-4(3H)-one 2,2-Dioxide (1 1), (S3)5 A-L-a-Aspartyl-L-phenylalamnc 1-Methyl Ester, 35, (S1 )4... 

L-Ascorbyl palmitate L-Ascorbyl laurate D-Isoascorbyl laurate L-Ascorbic acid 2-sulfate 2,3-Di-O-methyl-l-ascorbic acid 3-Benzoyl-L-ascorbic acid 5,6-Isopropylidene-L-ascorbic acid 2,3 4,6-Di-0-isopropylidene-2-keto-L-gulonate 3-0- [ (Dimorpholino) phosphinate] -5,6-0-isopropyli-dene-L-ascorbate... 

The aim of the manuscript is to determine the diffusion coefficients and other relevant electrochemical parameters of antioxidants in water, micellar systems and organic solvents. As the first approach, we employed vitamin C (L-ascorbic acid, AA) and propyl gallate, (PG), and their lipophilic derivatives ascorbyl-6-palmitate (AA16) and lauryl gallate, (LG), because they are well-known bioactive... 

The nature of the intermediates and products formed on oxidation of L-ascorbic acid and its 6-benzoate and 6-palmitate by iodine have been investigated by i C-nmr in both D2O and d6-DMSO. In D2O, there was evidence for the formation of the 3,6-hemiketal-hydrate 63 in equilibrium with the bis-hydrate 64 of dehydroascorbic acid. A similar bis-hydrate was formed from the 6-(9-benzoyl deriv.itive in D2O, and this formed a bis-anhydrodimer on standing. In d -DMSO, the 6-O-acyl derivatives formed the 2,3-dione (dehydroascorbate), which formed the bis-hydrate on adding water. 2 Thg hydrogen-ion dependence in the oxidation of L-ascorbic acid by hexacyanoferrate(III) in aqueous ethanol has been investigated the rate law was derived and the... 

L-ascorbic acid (AA) and L-dehydroascorbic acid (DHAA) are the two main C vitamers occurring in nature [1]. In food analysis, the valuation of the vitamin C total content should account for both forms, since DHAA is readily reduced to AA in the animal body. D-isoascorbic acid (D-IAA), also known as erythorbic acid or D-araboascorbic acid, has analogous reductive properties but only 5% of the antiscorbutic activity of L-AA this epimer is a by-product of vitamin C, and is approved within the European Community as an antioxidant additive [62]. The capability of LC to distinguish the two ascorbic acid isomers and their primary oxidation products is very useful for analyzing processed foods. Forms used for supplementation are AA, sodium-, calcium-, or potassium-L-ascorbate and L-ascorbyl 6-palmitate [4]. 

Sodium ascorbate and ascorbic acid esters, such as ascorbyl 6-palmitate (5-111) and ascorbyl 2-phosphate (5-113), are fully bioavailable, while ascorbyl 2-sulfate (5-114) is a completely inactive vitamin form. Phosphate and sulfate are about 20 times more stable to oxidation than the free acid. D-lsoascorbic acid (5-107) shows only 5-20% activity, 6-deoxy-L-ascorbic acid (5-115), found in fungi, has about 30% activity and the bound ascorbic acid form ascorbigen has 15-20% of the activity of ascorbic acid. Ascorbic acid 2-0-P-D-glucoside, systematic name 2-0-(P-D-glucopyranosyl)-L-ascorbic acid (5-116), has the same biological activity as ascorbic acid and is also stable against oxidation. 

Uses Antistat for polyolefins surface coating for EPS fabric softener coemulsifier Palmitic sucrose ester. See Sucrose palmitate Palmitoyl animal collagen amino acids. See Palmitoyl collagen amino acids 6-0>Palmitoylascorbic acid PalmKoyl L-ascorbic acid. See Ascorbyl palmitate Palmitoyl collagen amino acids Synonyms Palmitoyl animal collagen amino acids Classification Protein... 

L-Ascorbyl-6-palmitate is a fat-soluble synthetic ester of ascorbic acid. It has been used extensively as an antioxidant in foods, pharmaceuticals and cosmetics, particularly as a preservative for various edible oils and waxes The inhibition of polymerisation of bovine serum albumin by HO radicals generated by the Fenton reaction indicated ascorbyi radical exerts a considerable protective effect against polymerisation by scavenging HO (Perri-CONE et al. 1999). L-Ascorbyl-6-palmitate was 1 order of magnitude faster in scavenging these radicals... 

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