1. Name and Synonyms

The product is officially named L-Isoleucine and is widely recognized in the feed and animal nutrition industries. This standardized name ensures accurate identification across various feed additive applications.

2. Chemical Identification

L-Isoleucine is identified by the CAS number 73-32-5, which serves as a unique identifier in feed additive industries. This CAS number facilitates precise tracking in research, production, and quality control processes.

3. Appearance and Physical Properties

L-Isoleucine typically appears as a white crystalline powder or granules, aiding in product identification and quality control during manufacturing and distribution.

4. Purity and Solubility

L-Isoleucine has a high purity level (≥98.5%), ensuring reliable performance in feed formulations. It is freely soluble in water, allowing for easy integration into animal feed and ensuring uniform nutrient distribution.

5. Molecular Structure

The molecular formula of L-Isoleucine is C₆H₁₃NO₂, with a molecular weight of approximately 131.17 g/mol. Its structure supports efficient protein metabolism, muscle repair, and energy production, making it an essential nutrient in animal feed formulations.

1. Nutritional Role

L-Isoleucine is an essential branched-chain amino acid (BCAA) and a critical component of animal nutrition. Since animals cannot synthesize isoleucine internally, it must be supplied through their diet. L-Isoleucine supports protein synthesis, promotes muscle development, and enhances energy metabolism in livestock and poultry. It also plays a key role in immune system health, hemoglobin production, and nitrogen balance, contributing to overall animal productivity and well-being.

2. Benefits in Animal Nutrition

2.1 Growth Promotion

L-Isoleucine is essential for protein production in the body, aiding in muscle development and growth. Its supplementation helps animals achieve optimal weight gain, particularly in species like poultry and swine that exhibit rapid growth rates.

2.2 Energy Metabolism

As a branched-chain amino acid, L-Isoleucine is metabolized in muscle tissues to provide energy. This helps animals sustain high-performance activities and supports metabolic efficiency in livestock and poultry.

2.3 Feed Efficiency

By improving the feed conversion ratio (FCR), L-Isoleucine enhances the utilization of dietary nutrients. This reduces feed costs while boosting productivity in intensive farming systems.

2.4 Immune System Support

L-Isoleucine supports immune function by aiding in protein synthesis necessary for immune responses. It helps animals resist infections and recover more effectively from stress or disease.

2.5 Nitrogen Balance

L-Isoleucine plays a role in maintaining nitrogen balance in the body, ensuring efficient use of dietary proteins and promoting overall metabolic health.

3. Comparison of Effectiveness

L-Isoleucine is one of the three key branched-chain amino acids, alongside leucine and valine. Compared to other amino acids, its role in energy production and protein metabolism makes it indispensable in animal feed formulations. Its bioavailability and compatibility with other feed ingredients ensure it meets the demands of modern feed practices.

4. Application Fields

Livestock and Poultry Nutrition:

L-Isoleucine is widely used in feed formulations for poultry, swine, cattle, and aquaculture species. It is particularly valuable in high-performance farming systems, where growth rates and energy efficiency are critical.

Balancing Diets:

In feed formulations where isoleucine levels are naturally low, L-Isoleucine supplementation ensures a balanced amino acid profile, supporting maximum growth and productivity.

Feed Premixes and Concentrates:

L-Isoleucine is a key component in feed premixes and concentrates, supporting the creation of nutritionally balanced diets that promote sustainable animal production.

1. Shelf Life

L-Isoleucine has a shelf life of 2 years when stored under recommended conditions. During this period, the product retains its quality, potency, and stability, ensuring consistent performance in animal feed formulations.

2. Testing Indicators and Standards

2.1 Appearance

L-Isoleucine appears as a white crystalline powder or granules. Any significant deviation from this appearance may indicate potential quality concerns, serving as an essential quality control measure.

2.2 Identification

The identity of L-Isoleucine is confirmed through analytical methods such as High-Performance Liquid Chromatography (HPLC) or Infrared Spectroscopy (IR). These tests verify product authenticity and ensure compliance with quality standards.

2.3 pH Value

A 1% aqueous solution of L-Isoleucine should have a pH value within the specified range of 5.5–7.0. Maintaining this pH range ensures product stability and compatibility with feed formulations.

2.4 Related Substances Content

Strict limits are applied to related substances, with impurities not exceeding specified standards. This ensures high purity and guarantees the efficacy and safety of L-Isoleucine in feed applications.

2.5 Heavy Metals Content

The heavy metals content in L-Isoleucine should not exceed 10 ppm. Keeping heavy metal levels low ensures the product’s safety and suitability for animal nutrition.

2.6 Water Content

The water content in L-Isoleucine should be controlled below 0.5%. Proper moisture levels are critical to maintaining stability during storage and preventing degradation.

2.7 Residue on Ignition (Ash Content)

The ash content, or residue on ignition, should not exceed 0.3%. Low ash levels reflect high product purity and minimal inorganic contaminants.

2.8 Content Determination

The active content of L-Isoleucine should be ≥98.5%. Meeting this specification ensures consistent effectiveness in supporting protein metabolism, muscle development, and energy production in animals.

2.9 Solubility

L-Isoleucine is slightly soluble in water, ensuring compatibility with feed formulations and effective incorporation into animal diets.

2.10 Amino Acid Profile

L-Isoleucine is standardized to contain isoleucine as the primary active ingredient. This ensures it meets the specific amino acid requirements of various livestock and poultry species, supporting growth, muscle function, and overall health.

1. Packaging

L-Isoleucine is securely packaged in high-quality fiber drums or multi-layer kraft bags, with standard sizes of 25 kg per drum or bag. This packaging protects the product from environmental factors such as moisture, light, and contamination, ensuring its stability and quality during storage and transportation. The packaging is designed for easy handling and efficient logistics, optimizing inventory management for feed manufacturers and distributors.

2. Transportation Modes

2.1 Express Shipping

For smaller or urgent orders, we offer express shipping through trusted international carriers such as DHL, TNT, and FedEx. These carriers ensure rapid delivery while maintaining product integrity throughout transit.

2.2 Air and Sea Freight

For bulk orders, we provide both air and sea freight options to accommodate diverse customer needs. Air freight offers faster delivery for urgent shipments, though it may involve higher costs. Sea freight is a more economical option for larger quantities, suitable for customers with flexible delivery schedules.

3. Delivery Time

Once payment is confirmed, L-Isoleucine orders are processed and dispatched within 2–3 business days. This swift turnaround ensures timely delivery and reinforces trust in our reliable and customer-focused service.

Q1: How can I place an order for L-Isoleucine?

A: To place an order, please contact our customer service team using any of the following methods:

• WeChat: +86-18663729963, +86-13589106478

• Skype: sunnylee886

• Email: maggie@hope-biotech.com, sunny@hope-biotech.com

• Mobile: +86-18663729963, +86-13589106478

Our team is available to guide you through the ordering process and answer any questions you may have.

Q2: What is the minimum order quantity (MOQ) for L-Isoleucine?

A: The standard MOQ for L-Isoleucine is 1 kg. If you require a different quantity, please contact us, and we will work to accommodate your specific needs.

Q3: Is your L-Isoleucine certified?

A: Yes, our production facility is certified with GMP and ISO 9001 standards, ensuring the highest levels of quality and safety. L-Isoleucine is manufactured in compliance with international regulations for feed additives, guaranteeing its purity, safety, and efficacy.

Q4: What are the storage recommendations for L-Isoleucine?

A: L-Isoleucine should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and moisture. Proper storage ensures its stability and effectiveness throughout its shelf life.

Q5: What are the key benefits of using L-Isoleucine in animal feed?

A: L-Isoleucine is essential for protein synthesis, muscle development, and metabolic balance in animals. It improves feed efficiency, supports growth, and enhances overall health and productivity in livestock and poultry.

Q6: Can L-Isoleucine be customized for specific feed formulations?

A: Yes, we can provide customized solutions for specific feed formulations. Contact our team to discuss your unique requirements, and we will help tailor L-Isoleucine to meet your needs.

Q7: How is L-Isoleucine shipped?

A: We offer flexible shipping options, including express delivery (DHL, FedEx, TNT) for smaller orders and air or sea freight for bulk quantities. All shipments are securely packaged to maintain product quality and integrity during transit.