Product Information
- Product Name: L-Proline
- Description: A high-purity, plant-compatible amino acid biostimulant derived from fermentation or synthesis, consisting of ≥99% L-Proline (USP/AJI standard). This non-essential amino acid functions as an osmoprotectant, antioxidant, and growth regulator in plants, enhancing tolerance to abiotic stresses while supporting metabolic processes. It is used to diversify fertilizer formulations and promote sustainable agriculture.
- Form: White to colorless crystalline powder
- Odor: Slight characteristic odor with a slightly sweet taste
- Source: Fermentation-derived or synthetic; compliant with pharmaceutical-grade standards for agricultural applications.
- CAS No.: 147-85-3
Key Specifications
| Parameter | Notes |
|---|---|
| Assay (L-Proline Content) | High-purity grade suitable for biostimulant use. |
| Appearance | Colorless to white crystals. |
| Solubility | Rapidly dissolves to form clear solutions. |
| pH (1–10% solution) | Neutral range; compatible with most applications. |
| Specific Optical Rotation | Confirms L-form configuration. |
| Moisture Content | Ensures stability. |
| Heavy Metals (as Pb) | Compliant with safety standards. |
| Melting Point | Characteristic thermal behavior. |
Benefits and Functions
- Acts as an osmoprotectant, maintaining cellular water balance and turgidity under osmotic stresses such as drought, salinity, heat, cold, and heavy metal exposure.
- Functions as an antioxidant, scavenging reactive oxygen species (ROS) and regulating oxidative balance in plant cells.
- Enhances pollen vitality, root development, nutrient uptake, and overall plant vigor.
- Improves tolerance to abiotic stresses, promoting recovery and reducing damage to proteins and membranes.
- Supports protein synthesis, redox homeostasis, and signaling pathways for stress adaptation.
- Fully biodegradable, non-toxic, and environmentally compatible; suitable for organic and conventional farming systems.
- Compatible with most fertilizers, biostimulants, and agrochemicals.
Recommended Application
- Preparation: Dissolve completely in water to form a stock solution before application.
- Methods: Foliar spray, soil drench, fertigation, or seed treatment.
- Dosage Rates:
- Foliar Spray: 200–300 g/ha (dilute at 0.2–0.5 g/L water).
- Soil Application: 5–10 kg/ha, mixed with other fertilizers.
- Seed Treatment: Soak in 0.5–1% solution prior to planting.
- Frequency: 2–4 applications during stress-prone stages (e.g., germination, vegetative growth, flowering, or pre-stress events).
- Crops: Effective for cereals, vegetables, fruits, legumes, and ornamentals, particularly in stress-affected environments.
Storage and Handling
- Store in a cool, dry place away from direct sunlight and moisture.
- Shelf Life: 3–5 years under recommended conditions.
- Precautions: Non-toxic and non-hazardous; avoid dust inhalation. Use protective equipment during handling.
Safety and Environmental Notes
- Classified as non-hazardous; fully biodegradable with negligible environmental impact.
- Contributes to sustainable agriculture by enhancing plant resilience and reducing reliance on chemical protectants.