Project Description
Product Description
L-Isoleucine is produced through microbial fermentation using strains like Corynebacterium glutamicum, derived from plant-based sources such as corn or sugarcane. As an essential branched-chain amino acid (BCAA), it is critical for protein synthesis, muscle recovery, and metabolic energy regulation. L-Isoleucine supports hemoglobin production, blood sugar stabilization, and immune function, making it vital for athletes, clinical nutrition, and dietary supplements targeting muscle preservation, endurance, and overall physiological balance.
Product Specifications
Purity & Assay
| Parameter | Specification | Test Method |
|---|---|---|
| Assay (on dried basis) | 98.5% – 101.5% | Titration / HPLC |
| HPLC Purity (BioUltra grade) | ≥ 99.5% | TLC / Titration |
| pH (1% or 40 g/L solution) | 5.5 – 7.0 | USP <791> |
| Specific Rotation [α]²⁰/D | +38.9° to +41.8° (c=5% in 6M HCl) | USP |
| Loss on Drying | ≤ 0.3% – 0.5% | USP <731> |
| Residue on Ignition | ≤ 0.1% – 0.3% | Gravimetric |
| Transmittance (T430) | ≥ 98.0% | Spectrophotometry |
Heavy Metals
| Parameter | Specification | Test Method |
|---|---|---|
| Heavy Metals (as Pb) | ≤ 10 – 15 ppm | USP / AAS / ICP |
| Lead (Pb) | ≤ 5 ppm | ICP-MS |
| Arsenic (As) | ≤ 0.1 – 1 ppm | ICP-MS |
| Iron (Fe) | ≤ 10 – 30 ppm | AAS / ICP |
| Mercury (Hg) | ≤0.1 ppm (BioUltra grade) | ICP-MS |
| Cadmium (Cd) | ≤ 5 ppm (BioUltra grade) | ICP-MS |
Microbiological Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Total Plate Count | ≤ 500 – 1,000 CFU/g | USP <61> |
| Yeast & Mold | ≤ 50 – 100 CFU/g | USP <61> |
| Endotoxin | < 20 EU/g | LAL Test |
Benefits & Application
- L-Isoleucine accelerates muscle tissue repair and reduces exercise-induced fatigue by promoting protein synthesis and energy production during physical exertion.
- It enhances glucose uptake and utilization in muscle cells, aiding in stable blood sugar levels and sustained energy during prolonged activities.
- L-Isoleucine supports hemoglobin formation, improving oxygen transport efficiency and contributing to optimal cellular function and vitality.
- It bolsters immune health by facilitating the production of antibodies and immune cells, strengthening the body’s defense against stressors.
Application
- L-Isoleucine is formulated into BCAA powders, capsules, tablets, and clinical nutrition products for oral supplementation, often combined with leucine and valine to maximize muscle recovery and athletic performance. It’s also integrated into fortified foods, beverages, and IV solutions for medical nutrition therapy.
- Typical daily supplemental doses range from 1–3 grams, adjusted based on body weight, activity levels, or clinical needs; higher doses (e.g., 5–10g) may be used under professional supervision for intensive athletic training or metabolic support.
Quality & Compliance Highlights
- Our L-Isoleucine product is manufactured to meet the highest industry standards for purity and quality. The assay content ranges from 98.5% to 101.5% as verified by titration and/or HPLC, exceeding typical industry specifications. The product conforms to United States Pharmacopeia (USP), European Pharmacopoeia (EP), and Japanese Pharmacopoeia (JP) testing specifications, providing comprehensive regulatory compliance for global markets.
- Heavy metals are strictly controlled with total heavy metals limited to no more than 10 to 15 parts per million, lead content no more than 5 parts per million, and arsenic content no more than 1 part per million, meeting the strictest international safety requirements. BioUltra grade offers even more stringent trace metal specifications .
- Our L-Isoleucine is available from non-animal source, making it suitable for vegetarian, vegan, and allergen-conscious formulations. Certified reference materials are available with traceability to USP, EP, and BP primary standards .
- When properly stored in sealed containers in a cool, dry place, L-Isoleucine maintains a shelf life of 24–36 months.
Packing & Shipping
Why Choose Us & How to Order?
Located in China, if you purchase from us,we offer many additional convenient services, all of which cannot be easilly provided by other ingeredient products suppliers. Welcome to contact us to get FREE SAMPLE, COA and Nutrition Facts！
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