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Lactic acid
Lactic acid
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Introduction

Lactic acid is a carboxylic acid with molecular formula of C3H6O3, which contains hydroxyl groups and belongs to α- Hydroxy acid (AHA). In aqueous solution, its carboxyl group releases a proton to produce lactate ion CH3CH (OH) coo −.

Product code

JD-LA80-03

Chemical name

L-(+)-Lactic Acid,

(S)-2-hydroxy- propanoic acid

CAS Number

79-33-4 ;

50-21-5 (general CAS number)

EU food additive number

E270

Description

The lactic acid, produced by fermentation, is slight yellowish to colorless,

syrupy and hygroscopic liquid with slightly acid odor. The product is GRAS.

Chemical formula

C3H6O3

Molecular weight

90.08

CONTENT

SPECIFICATIONS

TEST RESULT

Stereochemical purity (L-isomer)

Min 97%

97.6%

Content

Min 80%

80.2%

Color, fresh

Max 50APHA

30APHA

Color, after 2 hours heating at 220°C

Max 50APHA

40APHA

Sulphates

Max 10ppm

< 10ppm

Chlorides

Max 10ppm

< 10ppm

Sulphated ash

Max 0.05%

< 0.05%

Iron

Max 10ppm

< 10ppm

Total heavy metals

Max 10ppm

< 10ppm

Lead

Max 0.5ppm

< 0.5ppm

Arsenic

Max 1ppm

< 1ppm

Mercury

Max 1ppm

< 1ppm

Cyanide

Max 1ppm

< 1ppm

Limit of Citric, Oxalic, Phosphoric

and Tartaric Acid

Passes test

Passed test

Reducing sugars

Passes test

Passed test

Readily carbonizable substances

Passes test

Passed test

 

Functions and Applications

1. Lactic acid is also used as green feed storage agent and forage ripening agent;
2. As growth promoter in pig and poultry feed. Lactic acid can reduce the pH value in the stomach, activate digestive enzymes, improve the ability of amino acid digestion, and is good for the growth of intestinal epithelium. Piglets fed diets containing Acidifiers for several weeks after weaning can gain 15% weight during weaning;
3. Lactic acid inhibits the growth of microorganisms. Suckling piglets will be infected with diseases caused by Escherichia coli and Salmonella. Adding lactic acid to the feed can prevent the growth of pathogens in the lower gastrointestinal tract of piglets;
4. Lactic acid can be used as feed preservative and enhance microbial stabilizer of feed, grain and meat processing products by-products;
5. Adding lactic acid to the drinking water of poultry and piglets can effectively inhibit the growth of pathogenic bacteria and increase the rate of animal weight gain.

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