Product Name: L-valine
1.Discription of L-valine:
Product Name: L-valine
2.Technical Specification of L-valine:
|
Testing Item
|
Standard
|
Result
|
|
Appearance
|
White crystals or crystalline powder
|
conforms
|
|
Assay/%
|
≥98.50
|
99.60
|
|
Specific Rotation
|
+26.6°~+28.8°
|
+27.4°
|
|
Light Transmittance
|
≥94
|
97.1
|
|
Residue on Ignition/%
|
≤0.10
|
0.08
|
|
Chloride (Cl)/%
|
≤0.05
|
0.018
|
|
Iron (Fe)/%
|
≤0.0030
|
0.0008
|
|
Sulfate ( SO4)/%
|
≤0.03
|
0.015
|
|
Heavy Metal(Pb)/%
|
≤0.0015
|
0.0008
|
|
Loose Bulk Density(g/ml)
|
/
|
0.40
|
|
Bulk Density(g/ml)
|
/
|
0.69
|
|
Total Plate Count(cfu/g)
|
≤2000
|
170
|
|
Size(80mesh pass rate)/%
|
/
|
90
|
|
Loss on Drying/%
|
≤0.30
|
0.17
|
|
PH
|
5.5~7.0
|
conforms
|
3. Application of L-valine:
Valine (abbreviated as Val or V) is an α-amino acid with the chemical formula HO2CCH(NH2)CH(CH3)2. L-Valine is one of 20 proteinogenic amino acids. Its codons are GUU, GUC, GUA, and GUG. This essential amino acid is classified as nonpolar. Human dietary sources are any proteinaceous foods such as meats, dairy products, soy products, beans and legumes.Along with leucine and isoleucine, valine is a branched-chain amino acid. It is named after the plant valerian. In sickle-cell disease, valine substitutes for the hydrophilic amino acid glutamic acid in hemoglobin. Because valine is hydrophobic, the hemoglobin is prone to abnormal aggregation.
4.Packing of L-valine:
25kg pp bag, 19MT/20FCL, 27MT/40'HQ
5.Storage and Transportation
It should be kept indoor where is shady, ventilated, dried, and free from rain, moisture and sun.
