L-Proline powder, CAS No.147-85-3, an non-essential amino acid manufactured through fermentation, uses vegetables as the raw materials. L-proline is 100% free of materials of animal origin. Function and uses: Proline used as asymmetric catalysts in organic reactions. L-proline is an essential component of Collagen, function in joints and tendons. Proline plays an important role in combating arteriosclerosis, or hardening of the arteries. In brewing, proteins rich in proline combine with polyphenols to produce haze (turbidity). L-Proline supplementation used for endurance athletes, skin health supplementation.
| ITEM | STANDARD |
| Identification | Via IR Absorption |
| Specific Optical rotation | -84.3°~–86.3° |
| Chloride(As Cl) | ≤0.05% |
| Sulfate(As SO4) | ≤0.03% |
| Assay | 98.5-101.5%% |
| Iron(FE) | ≤0.003% |
| Heavy Metals(As Pb) | ≤0.0015% |
| Orgaic Volatile Impurities | Meet The Requirements |
| Chromatographic Purity | Any individual impurity not more than 0.5% Total impurity not more than 2.0% |
| Loss on drying | ≤0.4% |
| Residue on ignition | ≤0.4% |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine L-Proline with other food ingredients in one shipment to save on freight.
We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.
Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.
You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.
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Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.