Manufacturers List

L-Isoleucine

L-Isoleucine is a food-grade essential branched-chain amino acid (BCAA) used in sports nutrition, clinical nutrition, and food fortification. We supply bulk L-Isoleucine sourced from leading China manufacturers, available in powder form for food and beverage manufacturers worldwide. Our L-Isoleucine is widely used in sports nutrition, anti-fatigue products, parenteral amino acid solutions, nutritional enrichment and pharmaceutical infusion preparations.

Kosher Halal ISO 9001 BRC
CAS No.
73-32-5
HS Code
292249

L-Isoleucine is one of the three essential branched-chain amino acids (BCAAs), alongside L-Leucine and L-Valine. It plays a vital role in muscle protein synthesis, energy production during exercise, and blood sugar regulation.

In the sports nutrition industry, L-Isoleucine is a key component of BCAA supplements that support muscle recovery and reduce exercise-induced fatigue. It is produced through microbial fermentation using optimized bacterial strains for high-yield biosynthesis. L-Isoleucine's hydrophobic character and structural role in protein folding make it essential for both nutritional supplementation and pharmaceutical applications.

  • BCAA supplement formulations for sports nutrition
  • Muscle recovery and anti-fatigue products
  • Clinical nutrition and parenteral amino acid solutions
  • Food fortification and nutritional enrichment
  • Pharmaceutical infusion preparations

Grades / Types Available: Food Grade, Feed Grade

Item Specification
Appearance White crystalline powder
Assay ≥98.5%
Specific Rotation [α]D20 +39.0° to +42.0°
Loss on Drying ≤0.5%
Residue on Ignition ≤0.1%
pH (1% solution) 5.5–7.0
Heavy Metals (as Pb) ≤10 ppm
Arsenic ≤1 ppm
Chloride ≤0.02%
Total Plate Count ≤1000 CFU/g
Purity (Food Grade) 98% min
Moisture/Loss on Drying < 5%
Ash < 1%
L-Isoleucine packaging

MOQ

Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine L-Isoleucine with other food ingredients in one shipment to save on freight.

Samples

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.

Lead Time

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.

Documents

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.

Look for Other Ingredients?

Browse by Categories

Need to Import Ingredients from China?
Contact Our Experts

Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.