Bulk Vitamin C Powder

Shaanxi Yuantai Biological Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of bulk vitamin c powder in China. With abundant experience, we warmly welcome you to wholesale bulk bulk vitamin c powder for sale here from our factory. Quality products and reasonable price are available.

Bulk Vitamin C Powder is a water-soluble vitamin, also known as L-ascorbic acid, with a molecular formula of C6H8O6 and a molecular weight of 176.12.
Vitamin C is a monoclinic crystal that is usually in the form of flakes or sometimes needles. It is odorless, sour, easily soluble in water, and has strong reducing properties. It participates in the complex metabolic process of the body, can promote growth and enhance resistance to disease, and can be used as a nutritional supplement, antioxidant, and wheat flour improver. However, excessive supplementation of vitamin C is not beneficial to health, but harmful, so it needs to be used rationally.
It is an essential nutrient for higher primates and a few other organisms. Ascorbic acid is metabolically produced in most organisms, but humans are the most notable exception. The most well-known is that a lack of vitamin C can cause scurvy. The pharmacophore group of vitamin C is ascorbic acid ion. In living organisms, vitamin C is an antioxidant because it protects the body from the threat of oxidants. Vitamin C is also a coenzyme.

Acidity and alkalinity
The structure of vitamin C molecules contains a dienol structure, and the aqueous solution is acidic. Dip the vitamin C solution with a glass rod and drop it on the blue litmus paper, and you can see that the paper turns red; then use a glass rod to dip a small amount of vitamin C and drop it on the pH test paper, and measure the pH to be about 3; finally, add 2 drops of methyl orange test solution to the vitamin C solution, and the solution turns red.
Because the hydroxyl group on C-2 can form an intramolecular hydrogen bond with the carbonyl group on C-1, the acidity of the C-2 hydroxyl group is weaker than that of the C-3 hydroxyl group. The acidity of the C-3 hydroxyl group is stronger and can react with sodium bicarbonate or dilute sodium hydroxide solution to form C-3 enol sodium salt. However, in strong bases such as concentrated sodium hydroxide solution, the lactone ring is destroyed to form keto acid sodium salt.

Reducibility
The dienol structure in the vitamin C molecule easily releases H atoms and has strong reducing properties. It is easily oxidized by oxygen in the air in aqueous solution to form dehydroascorbic acid. The two can be converted into each other, so vitamin C has two forms, oxidized and reduced, and both have equal biological activity. Dehydroascorbic acid is oxidized by silver nitrate, ferric chloride, alkaline copper tartrate, iodine, iodate and 2,6-dichloroindophenol to produce dehydroascorbic acid. [33] Dehydroascorbic acid can be reversed into vitamin C under the action of reducing agents such as hydrogen sulfide and hydroiodic acid. Because the conjugated system in the dehydroascorbic acid molecule is destroyed, dehydroascorbic acid is easier to be hydrolyzed than vitamin C to produce 2,3-diketogulonic acid, which can be further oxidized to produce threonic acid and oxalic acid and lose its activity. The oxidation rate in aqueous solution is determined by pH and oxygen concentration, and heavy metal ions can catalyze the above reaction.

Instability
Bulk Vitamin C Powder is unstable in aqueous solution and is quickly oxidized to dehydroascorbic acid, especially in neutral or alkaline solutions. It is oxidized faster when exposed to light, heat, metal ions such as iron and copper, and can form stable metal salts. Vitamin C is a relatively strong reducing agent, and its color darkens over time, becoming light yellow to varying degrees.

Identification reaction
Silver nitrate test solution is added to the aqueous solution of vitamin C to produce a black silver precipitate; if 2,6-dichloroindophenol test solution is added (the test solution itself is cyan and red in acidic solution), it can fade. These two reactions can be used to identify vitamin C.
The structure of vitamin C is similar to that of sugars and has the properties of sugars. It can be converted into furfural in the presence of trichloroacetic acid or hydrochloric acid through hydrolysis, decarboxylation, dehydration and other reactions, and then react with pyrrole at 50°C to produce blue. This reaction can also be used to identify vitamin C.

Antioxidant
Most of the biological functions of vitamin C are determined by its unique structure. The molecular formula of vitamin C is C6H8O6. There are two active hydroxyl groups on the lactone ring structure, which are easily ionized (pKa is 11.6 and 4.2 respectively), generating ASC and DHA, and DHA can be reduced to ASC in a series of enzymatic reactions. Therefore, ASC has become a natural antioxidant. Among the above reactions, the most representative one is the reaction mediated by DHA reductase in the reduced glutathione (glutathione, GSH).

Collagen synthesis
Collagen is mainly found in the skin, bones, internal organs and other parts, and can maintain the morphology of the skin and other organs. In order to promote the cross-linking of collagen molecules and ensure the integrity of tissue structure, collagen proline-4-hydroxylase (collagen-4-hydroxylase, C-P4H) is required. C-P4H is a ferrous ion and 2-oxoglutarate-dependent dioxygenase that catalyzes the hydroxylation reaction of collagen proline residues to generate (2S,4S)-4-hydroxyproline. Vitamin C is the cofactor for C-P4H to exert its enzymatic activity.

Delaying cell aging and apoptosis
Vitamin C can participate in the remodeling of chromatin structure and the regulation of effector gene expression by regulating 5-methylpyrimidine modifying enzyme 1 and Jumonji C domain histone demethylase. Vitamin C can induce HIF-2α degradation by enhancing the activity of HIF-PHs, promote the maturation of precursor i PSCs, and inhibit the expression of p53 gene during reprogramming. Vitamin C can also regulate protein ALKBHs. ALKBHs can not only remove the methylation modification on histone H2A, but also interact with core pluripotency factors to jointly regulate the expression of embryonic stem cell-specific miRNA. The above reaction can not only delay cell aging and apoptosis, but also promote the repair of some tissues.

Regulating cell signaling pathways
The traditional research field of vitamin C focuses on its redox properties and cofactor coenzymes, while the related research on vitamin C as a factor regulating cell signaling pathways has been an emerging and active field in the past two decades.
Studies have found that vitamin C can inhibit the activity of P38MAPK and cell senescence caused by P53 by reducing the level of ROS, and can also promote the regeneration and maturation of endothelial cells in damaged tissues by activating the ERK signaling pathway.

Cholesterol metabolism
Cholesterol is not only an important component of cell membranes and plasma lipoproteins, but also a precursor of many important substances, such as bile acids, adrenal cortex hormones, vitamin D, sex hormones, etc. In the process of cholesterol metabolism, vitamin C is a coenzyme for the hydroxylation of the cholesterol ring part, and the side chain decomposition becomes bile acid. Therefore, vitamin C can regulate the metabolism and synthesis of

Food industry
Fruit and vegetable preservation: The rapid aging of fruits after picking is closely related to the large amount of reactive oxygen produced by the metabolism of their pulp after harvest. If the reactive oxygen in the cells cannot be removed in time by the antioxidant system, it will lead to oxidative stress. Vitamin C is an important antioxidant in plants. Studies have shown that if the vitamin C content of fruits and vegetables is increased during the post-harvest storage process, the post-harvest preservation effect of fruits and vegetables can be improved.
Improving protein properties: Vitamin C is unstable in aqueous solution and has an oxidative-reductive ascorbic acid system. Studies have shown that the first stable oxidation product of vitamin C, DHA, and other further oxidation products (threose, oxalic acid, etc.), their active carbonyl groups can cross-link with amino acid residues. Some scholars also believe that DHA participates in the exchange reaction between -SH group and disulfide bond, increases the unfolding of molecules through this exchange reaction, and enhances protein-protein interaction through the formation of intermolecular disulfide bonds. The above effects may affect the properties of proteins.
Inhibiting fat oxidation: Vitamin C can both inhibit lipid oxidation and improve the antioxidant properties of emulsions. Oil oxidation is a serious problem for oily foods, which has a negative impact on the shelf life and nutritional content of foods. Vitamin C has good reducing properties and can remove oxygen from food, protecting oils from oxidation.
Protecting the stability of tea polyphenols and improving the quality of black tea: Vitamin C is beneficial to increasing the content of theaflavins and thearubigins and reducing the occurrence of polymerization reactions. The content of theaflavins and thearubigins is directly related to the quality of black tea, and the polymerization products have an adverse effect on the quality of black tea.

cholesterol in both directions.

Uses in health food

Medical preparations
Vitamin C is used in medicine in the form of vitamin C tablets, vitamin C granules, vitamin C effervescent tablets, vitamin C effervescent granules, and compound vitamin C sodium chewable tablets.

YTBIO mainly supplies Bulk Vitamin C Powder etc. The company was established in 2014 and has many years of R&D and production experience. We are committed to the research and development, production and sales of raw materials for the 21st century health industry. The certificates obtained so far include ISO9001, ISO22000, HALAL, KOSHER, HACCP, FDA,etc. We always maintain the highest requirements for product quality.

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