nutritional supplement C5H11O2NS Feed Grade Amino Acids DL
Product name: methionine
Chemical name: DL-methionine,
CAS No. :59 -51-8
M Weight: 149.21
Physicochemical properties: White flaky crystal or crystalline
powder. There is special smell, taste sweet. Optical rotation,
melting point 280 ~ 281 ° C (decomposition), soluble in water
(3.3g/100ml, 25 ° C), 10% aqueous solution PH value 5.6 ~ 6.1,
stable for the thermal and air, acid unstable in dense acid .
Soluble in dilute acids and alkalis, and is extremely difficult to
dissolve in ethanol, almost insoluble in ether. Can lead to
Methionine is a "framework" amino acid of biosynthesis protein, is
one of the essential amino acids in the growth of livestock
animals, has a strong role in regulating animal metabolism, is
widely used in feed, pharmaceutical, food and cosmetics fields.
In the feed industry, the amount of methionine ranks first in
amount, as a nutrition fortifier of the feed, an additive to make
up the amino acid balance. Add 1kg methionine in feed, is
equivalent to the nutritional value of fish meal 50kg.
Normally0.05% to 0.2% Methionine is added in the feed.
In medicine, methionine can be used as the main ingredient of the
amino acid infusion and compound amino acid, can also be used for
synthetic medicinal vitamins, it lipotropic effect can be used for
the production of hepatoprotective agents.
In the food industry, the methionine is used for healthcare food,
as a nutritional supplement.
Packing: in bags, bags divided into three layers, the outer layer
of polyethylene composite fabric, the middle layer is kraft paper,
and the inner layer is low density polyethylene film, each package
net weight 25kg. Also be based on the user contract requirements in
accordance with relevant safety requirements for packaging.
Storage: This product should be stored in a cool, dry, ventilated
place, the storage of a large number of goods, should be installed
conductive balance equipment to prevent the aggregation of the
electrostatic charge. During transport please prevent rain,
moisture and sun, it is strictly prohibited to transport mixed with
Shelf life: in the original packaging, the provisions of storage
conditions, the retention period of five years from the date of
White or Gray powder
DL-Methionine % ≥
Loss on drying % ≤
Chloride(NaCl) % ≤
Heavy metal(Pb)mg/kg ≤
Arsenic(As)(As) mg/kg ≤