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Vitamin a price, vitamin a effect, vitamin a food

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Folic acid

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Folic acid

Detailed introduction

Name: Folic acid

Chemical name: pteroyl glutamic acid

CAS No.: 59-30-3

Molecular formula: C19H19N7O6

Molecular weight: 441.41

Specifications: 97%

Properties: yellow or orange-yellow crystalline powder

Implementation standards: GB15570-2010, EP USP, etc.

Features and uses:

Yellow to orange-yellow crystals or crystalline powder. Odorless. Recrystallization from hot water gives plate crystals. No clear melting point. Carbonized at about 250 ° C, stable in air. Slightly soluble in water (1.6mg/100ml), insoluble in acetone, ethanol, chloroform and ether. Soluble in alkaline hydroxide and carbonate solution, hydrochloric acid, sulfuric acid, glacial acetic acid, phenol, pyridine. The pH in the 10% aqueous suspension is about 4.0-4.6. It is mainly used as a nutritional supplement. When it is lacking, it can lead to anemia, chronic dysentery, loss of appetite, slow development, and decreased white blood cells.

Function:

1。 It is an essential factor in the synthesis of proteins and nucleic acids and plays an important role in cell division and reproduction;

2. The formation of hemoglobin structure thiol formation, rapid proliferation of red blood cells and white blood cells require folic acid to participate.

3. Converting glycine and serine to each other such that phenylalanine forms tyrosine, histidine forms glutamic acid, and cysteine forms methionine;

4. Participate in the metabolism of long-chain fatty acids such as DHA in the brain, the synthesis of creatine and adrenaline.

5。 Synthesize ethanolamine in alcohol to choline

Recommended usage and precautions:

1. The daily requirement for adults is 0.1-0.2 mg.

2. GB14880-94: infant formula food 380-700 ug / kg; pregnant women, breastfeeding women special food 2000-4000 ug / kg.

3. GB 2760-2002: special food for pregnant women and breast milk 0.002-0.0075g/kg; solid drink 0.6-1.35mg/kg; free from washing rice, flour 1000-3000ug/kg; pregnant women and milk special milk powder 740ug/100g (label should be It is indicated that the dosage is 54g/d); milk-containing solid beverage is 0.23-0.38mg/100g; ready-to-eat breakfast cereal 1000-2500ug/kg; jelly 50-100ug/kg; cocoa powder and other flavor nutritious solid beverage, 3000-6000ug /kg; (The corresponding nutritional milk drink is reduced by the dilution factor).

4. FDA § 172.345, 2000 (daily): infant 0.1mg; under 4 years old 0.3mg; 4 years old and above 0.4mg; pregnant, lactating women 0.8mg.

5. Folic acid is unstable to light and decomposes into 2-amino-4-hydroxypteridin-6-aldehyde or 6-carboxylic acid, losing physiological activity. If a trace amount of riboflavin is present, it is more likely to cause photolysis.

6. Folic acid is stable to alkali in the absence of oxygen, but in the case of aerobic conditions, it is hydrolyzed in the presence of alkali. In food processing, the presence of sulfite or nitrite decomposes folic acid. Disinfection of bottled milk (119 ° C, 14 s) resulted in a 39% loss of folic acid, but if it was sterilized at 143 ° C for 3 s, 7% was lost and folic acid was protected in the presence of ascorbic acid or citric acid.

7. Vitamin C is taken with folic acid to inhibit the absorption of folic acid in the gastrointestinal tract. Folic acid and phenytoin can reduce the anti-epileptic effect of the latter. Trimethoprim, pyrimethamine and the like have a strong affinity for dihydrofolate reductase, which can prevent the conversion of folic acid to tetrahydrofolate and stop the therapeutic effect of folic acid.

Packing: 25KG / barrel

Symptoms of folic acid deficiency:

1。 Infants lacking folic acid can cause nuclear giant red blood cell anemia, and pregnant women lack of folic acid can cause giant red cell anemia。

2. Pregnant women who are deficient in folic acid early in pregnancy are more likely to develop deformed children.

3。 The lack of folic acid in the diet will increase the level of homocysteine in the blood and cause arteriosclerosis。

4。 Insufficient folic acid intake in the diet can easily induce colon cancer and breast cancer。

Packing: 25KG / barrel

Storage: It should be stored in a dry, clean and dark environment. It is strictly prohibited to mix with toxic substances to avoid pollution.

Tongxiang Jujia Food Additive Co., Ltd. products include more than 100 varieties of vitamins and their derivatives, minerals, amino acids, plant extracts, imported dairy products. The sales network covers all parts of the country. The company can not only provide high-quality products and services to our customers, but also help you solve technical problems in production. If you want to know the price of vitamin a, you can contact: 13356056388.


Phenoyl glutamic acid

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Co.:Tongxiang Jujia Food Additive Co., Ltd.

Add:2nd Floor, 1688-1690, Fuxing North Road, Wutong Street, Tongxiang City

TEL:0573-88080826

FAX:0573-88080810

MB:13356058388

Email:516860949@qq.com

Website:en。jxjujia。com

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