L-Histidine,white crystalline or crystalline powder,odorless,slightly bitter taste. Melting and decomposition at about 277~288 ℃. The imidazole and metal ions are easy to form complex salt. Dissolve in water (4.3g/100ml, 25 ℃), very difficult to dissolve in ethanol, insoluble in ether.
Less well known is that L-histidine is required by the body to regulate and utilize essential trace minerals such as copper, zinc, iron, manganese and molybdenum.L-Histidine is an essential amino acid that cannot be formed by other nutrients, and must be in the diet to be available to the body.
|Storage conditions||Store in cool & dry place, Keep away from strong light and heat.|
|Sieve Analysis||100% pass 80 mesh||Complies|
|Loss on Drying||5% Max||1.02%|
|Sulphated Ash||5% Max||1.30%|
|Extract Solvent||Ethanol & Water||Complies|
|Heavy Metal||5ppm Max||Complies|
|Residual Solvents||0.05% Max||Negative|
|Total Plate Count||1000/g Max||Complies|
|Yeast & Mold||100/g Max||Complies|