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Product name: L-Alanine
CAS NO.: 56-41-7
Molecular formula: C3H7NO2
Molecular weight: 89.09
Appearance: colorless to white crystalline powder

L-Alanine description

L-alanine is an organic compound. It is mainly used in biochemical research, tissue culture, liver function determination, flavor enhancer, which can increase the seasoning effect of condiments, and can also be used as sour corrector to improve the sour taste of organic acids.

L-Alanine function and application

1. Medicine

L-alanine is an important raw material for the synthesis of VB6, and is one of the components of the nutrient agent "Nutritional Infusion of Amino Acid".

Cysteine is mainly used in liver medicine, antidote, expectorant and other medical drugs.

Cysteine and its derivatives can be used for detoxification of liver poisoning, antipyretic analgesia, ulcer treatment, fatigue recovery, infusion and comprehensive amino acid preparations, especially for expectoration; Treatment of bronchitis and expectorant effect.

Amino acid injection-800, with L-alanine as the main ingredient, mainly treats liver and encephalopathy, and promotes the rapid recovery of liver coma patients. It is also a good diuretic medicine.

2. Food additives

(1) It can improve the nutritional value of food, in various kinds of food and beverages, such as bread, ice cream, fruit tea, dairy products, carbonated drinks, ice cream, etc. Adding 0.1~1% alanine can significantly improve the utilization rate of protein in foods and beverages. Because alanine has the characteristics of being directly absorbed by cells, it can quickly recover fatigue and cheer up after drinking.

(2) Improving the taste of synthetic sweetener can increase the sweetness and reduce the dosage. Adding 1~10% alanine to the compound sweetener can increase the sweetness, and the sweet taste is soft as natural sweetener, and can improve the taste.

Alanine is also one of the raw materials for the synthesis of high sweetness Alitame (L-asparagine-D-alanamide, 600 times the sweetness of sucrose).

Biochemical research. Tissue culture. Liver function measurement.

It is used as a flavor enhancer. It can increase the flavoring effect of condiments; It can also be used as sour correction agent to improve the sour taste of organic acids.

β- Alanine is used as an additive for electroless plating and electroplating, and also for the preparation of electroplating corrosion inhibitor.

L-Alanine synthetic method

1. The propionic acid chlorination ammoniation method uses propionic acid as the raw material, under the temperature of 105 ℃ and the presence of 3% red phosphorus catalyst, enters liquid chlorine for chlorination to generate 2-chloropropionic acid, and then enters the ammonia solution, and uses urotropine as the catalyst to ammoniate at the temperature of 60 ℃ to generate 2-aminopropionic acid. Finally, the reactant is sent into methanol solution for crystallization and centrifugation; Prepared by drying α- Finished product of alanine.

2. α- Bromopropionic acid chlorination α- Bromopropionic acid; Ammonia water; Ammonium bicarbonate is mixed, stirred and refluxed for 7h, then evaporated to dryness, then soaked and washed with ethanol to remove ammonium bromide, filtered out crystals, then decolored and filtered, added with ethanol to obtain crystals, filtered and dried to obtain finished products.

3. The reaction of acetaldehyde and hydrocyanic acid in cyanohol method to produce cyanohydrin, and then react with ammonia to obtain aminonitrile; Then, sodium aminopropionate is hydrolyzed under alkaline conditions, and L-alanine is obtained through ion exchange.