| Customization: | Available |
|---|---|
| CAS No.: | 142-47-2 |
| Formula: | C5h8nnao4 |
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Monosodium glutamate (C5H8NNaO4), chemical name alpha-aminoglutarate monosodium, is an organic compound with the chemical formula C5H8NNaO4 and is the sodium salt of glutamic acid.
1. Flavoring
When used as a flavoring agent, the general dosage is 0.2% to 0.5%. In addition to being used alone, it should be mixed with nucleic acid seasonings such as ribonucleotides and sodium inosinate to form a compound seasoning to improve the effect. Sodium glutamate is the most widely used flavoring agent at home and abroad. When coexisting with salt, it can enhance its taste-presenting effect. When used together with sodium 5'-inosinate or sodium 5'-guanylate, it has synergistic effects. effect.
Monosodium glutamate has a strong meaty flavor, and the flavor can still be felt when MSG is diluted to 3000 times with water. It is widely used in households, catering industry, and food processing industry (soup, sausages, fish cakes, spicy soy sauce, canned food, etc.). When sodium guanylate and sodium glutamate are used at the same time, they have a synergistic effect and can improve the umami flavor. They are also called freshness aids or powerful MSG.
2. Organic synthesis intermediates
It can be used as an organic synthesis intermediate in industry, but in the world's annual output, this use accounts for a very small proportion, such as used in additives, permeable membranes, silk protein modification, leather additives, biomedical materials, modification Various fields such as sexual regeneration of collagen fibers.
| Item | Limit |
| Appearance | White or colorless crystal |
| Assay | 98% MIN. |
| State of solution (transmittance) |
Clear and colorless not less than 89% |
| Sodium chloride (NaCl) | Not more than 10% |
| Ammonium (NH4) | Not more than 0.02% |
| Sulfate (SO4) | Not more than 0.028% |
| Iron (Fe) | Not more than 10 ppm |
| Lead (Pb) | Not more than 2 ppm |
| Arsenic (AsO3) | Not more than 0,5 ppm |
| Chlorides | Not more than 0,2% |
| Other amino acids | conforms |
| Loss on drying | Not more than 0.80% |
| Pyrrolidonocarboxyl acid | ≤0,2% |
| Specific rotation | +24.8 ~ +25.3 |
| Zn | Not more than 5 ppm |
| PH | 6.7 ~ 7.2 |
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