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Nutrition & Health
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L-Glutamine
Products Specification
|
Product Name: |
L-Glutamine |
|
|
CAS NO.: |
56-85-9 |
|
|
Items |
Unit |
Specification |
|
Appearance |
- |
Crystalline powder |
|
Color |
- |
Whitish |
|
Aroma |
- |
None |
|
Flavor |
- |
Slightly sweet |
|
Identification |
- |
Infrared absorption |
|
Assay |
% |
98.5~101.5 |
|
Whiteness |
- |
≥95 |
|
Insoluble foreign matter in amino acids |
mg/g |
≤0.05 |
|
Mesh size passes through 120mesh |
% |
≥95 |
|
Bulk density |
g/ml |
≥0.6 |
|
Transmittance |
% |
≥98 |
|
PH |
- |
4.0~6.0 |
|
Specific rotation |
° |
+6.3~7.3 |
|
Loss on drying |
% |
≤0.3 |
|
Ignited residue |
% |
≤0.1 |
|
Heavy metals |
ppm |
≤5 |
|
Arsenic |
ppm |
≤1 |
|
Lead |
ppm |
≤3 |
|
Cadmium |
ppm |
≤1 |
|
Mercury |
ppm |
≤0.1 |
|
Total plate count |
cfu/g |
≤1000 |
|
Yeast and moulds |
- |
≤100 |
|
Salmonella |
- |
Absent in 25g |
|
Coliforms |
MPN/g |
≤3 |
Product introduction
Glutamine (abbreviated as Gln) is a conditionally essential amino acid with various critical physiological functions in the human body. Below are its key details:
1. Basic Characteristics
Chemical Structure: Glutamine is an amide derivative of glutamic acid, containing an amide group in its side chain.
Classification: It is one of the 20 proteinogenic amino acids and becomes conditionally essential (requiring external supplementation) under specific conditions such as illness or intense physical exertion.
2. Physiological Functions
Energy Supply: Serves as a primary energy source for rapidly proliferating cells (e.g., intestinal mucosal cells, immune cells).
Immune Support: Enhances lymphocyte and macrophage function, boosting the body's resistance to infections.
Gut Health: Maintains the integrity of the intestinal mucosal barrier, preventing bacterial translocation.
Nitrogen Transport: Facilitates nitrogen transport between tissues and helps regulate acid-base balance.
Synthesis Precursor: Acts as a building block for glutathione (an antioxidant), nucleotides, and other compounds.
Synthesis Precursor: Acts as a building block for glutathione (an antioxidant), nucleotides, and other compounds.
3. Applications
Clinical Nutrition: Used in parenteral or enteral nutrition for patients with trauma, surgery, or cancer.
Sports Medicine: May alleviate immune suppression and muscle catabolism post high-intensity training (evidence remains debated).
Digestive Disorders: Supports the treatment of irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), etc.
Sports Medicine: May alleviate immune suppression and muscle catabolism post high-intensity training (evidence remains debated).
Digestive Disorders: Supports the treatment of irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), etc.
4. Sources & Supplementation
Dietary Sources: Abundant in meat, fish, eggs, dairy products, and legumes.
Supplements: Commonly available as L-glutamine powder or capsules; should be used under medical guidance.
Supplements: Commonly available as L-glutamine powder or capsules; should be used under medical guidance.
5. Precautions
Safety: Generally well-tolerated, but excessive intake may cause gastrointestinal discomfort.
Contraindications: Caution advised for individuals with liver/kidney dysfunction; controversial in cancer patients.
Contraindications: Caution advised for individuals with liver/kidney dysfunction; controversial in cancer patients.
6. Research Trends
Recent studies explore its potential roles in metabolic diseases (e.g., diabetes), neuroprotection, and cancer therapy, though some mechanisms remain unclear.
