1. Name and Synonyms

The product is officially named L-Tryptophan 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-Tryptophan is identified by the CAS number 73-22-3, 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-Tryptophan typically appears as a white to off-white crystalline powder, aiding in product identification and quality control during manufacturing and distribution.

4. Purity and Solubility

L-Tryptophan has a high purity level (≥98.5%), ensuring reliable performance in feed formulations. It is slightly soluble in water, enabling its efficient integration into animal feed for uniform nutrient distribution.

5. Molecular Structure

The molecular formula of L-Tryptophan is C₁₁H₁₂N₂O₂, with a molecular weight of approximately 204.23 g/mol. Its structure supports efficient protein metabolism, serotonin production, and stress reduction, making it an essential nutrient in animal feed formulations.

1. Nutritional Role

L-Tryptophan is an essential amino acid supplement and a critical component of animal nutrition. Since animals cannot synthesize tryptophan internally, it must be supplied through their diet. L-Tryptophan supports protein synthesis, promotes optimal growth, and enhances feed utilization efficiency in livestock and poultry. Additionally, it plays a vital role in regulating mood, stress levels, and sleep patterns by serving as a precursor to serotonin and melatonin, contributing to improved well-being and productivity in animals.

2. Benefits in Animal Nutrition

2.1 Growth Promotion

L-Tryptophan is crucial for the production of proteins and other bioactive compounds, supporting growth and tissue development. Supplementation helps animals achieve optimal weight gain, especially in species like poultry and swine with high growth demands.

2.2 Stress Reduction

As a precursor to serotonin, L-Tryptophan helps regulate mood and reduce stress in animals. This is particularly valuable in intensive farming systems where animals may face stressors such as transportation, overcrowding, or dietary transitions.

2.3 Feed Efficiency

By improving feed conversion ratio (FCR), L-Tryptophan enhances the utilization of dietary nutrients. This not only reduces feed costs but also supports higher productivity in livestock and aquaculture species.

2.4 Immune System Support

L-Tryptophan contributes to the production of immune-related proteins and supports metabolic processes that strengthen immune function. This helps animals resist diseases and recover more quickly from stress or illness.

2.5 Enhanced Reproductive Health

L-Tryptophan’s role in serotonin production also positively affects reproductive health by reducing stress, improving hormonal balance, and supporting overall reproductive performance in animals.

3. Comparison of Effectiveness

L-Tryptophan is an essential nutrient for balancing dietary amino acid profiles. Its bioavailability and compatibility with various feed ingredients make it an optimal choice for modern feed formulations. Compared to other amino acids, L-Tryptophan uniquely contributes to stress reduction and mood regulation, which are critical for high-performing animals in intensive farming systems.

4. Application Fields

Livestock and Poultry Nutrition:

L-Tryptophan is widely used in feed formulations for poultry, swine, cattle, and aquaculture species. It is particularly beneficial in high-performance farming systems where animals require stress management and enhanced growth rates.

Stress Reduction Programs:

L-Tryptophan is an effective supplement for managing stress during transportation, weaning, or environmental changes, ensuring animal welfare and maintaining productivity.

Feed Premixes and Concentrates:

L-Tryptophan is a key component in feed premixes and concentrates, helping to formulate nutritionally complete diets that promote sustainable and efficient animal production practices.

1. Shelf Life

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

2. Testing Indicators and Standards

2.1 Appearance

L-Tryptophan appears as a white crystalline powder. Any significant deviation from this appearance may indicate potential quality concerns, serving as a key quality control measure.

2.2 Identification

The identity of L-Tryptophan 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-Tryptophan should have a pH value within the specified range of 5.0–7.0. Maintaining this range ensures product stability and compatibility with feed formulations.

2.4 Related Substances Content

Strict limits are placed on related substances to ensure high purity. Impurities should not exceed specified standards, guaranteeing the efficacy and safety of L-Tryptophan in feed applications.

2.5 Heavy Metals Content

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

2.6 Water Content

The water content in L-Tryptophan should be controlled below 1.0%. Proper moisture levels are critical to preventing degradation and maintaining stability during storage.

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-Tryptophan should be ≥98.5%. Meeting this specification ensures consistent effectiveness in supporting protein metabolism, growth, and immune function in animals.

2.9 Solubility

L-Tryptophan is highly soluble in water, making it easy to integrate into feed formulations. Its solubility ensures uniform nutrient distribution in animal diets.

2.10 Amino Acid Profile

L-Tryptophan is standardized to contain tryptophan as the primary active ingredient. This ensures it meets the specific amino acid requirements of various livestock and poultry species, supporting growth, stress reduction, and metabolic health.

1. Packaging

L-Tryptophan 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-Tryptophan 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-Tryptophan?

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 assist you with the ordering process and answer any questions you may have.

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

A: The standard MOQ for L-Tryptophan is 1 kg. If you require a different quantity, please contact us, and we will do our best to meet your specific needs.

Q3: What are the primary applications of L-Tryptophan?

A: L-Tryptophan is a vital amino acid supplement widely used in animal nutrition. It supports protein synthesis, promotes growth, enhances feed efficiency, and improves immune function. It is particularly beneficial for livestock such as poultry, swine, cattle, and aquaculture species.

Q4: How should L-Tryptophan be stored?

A: L-Tryptophan should be stored in a cool, dry place, away from direct sunlight and moisture. Under the recommended storage conditions, its shelf life is 2 years.

Q5: Is L-Tryptophan safe for human consumption?

A: L-Tryptophan is widely used in animal feed formulations. For human consumption, it must comply with specific food-grade certifications and regulations. Please consult regulatory guidelines or professionals before using L-Tryptophan for human purposes.

Q6: Does your L-Tryptophan production comply with environmental and safety standards?

A: Yes, our production processes strictly adhere to environmental and safety regulations. We prioritize sustainable practices that minimize environmental impact, ensure worker safety, and meet leading industry standards.

Q7: How can I get a Certificate of Analysis (CoA) for L-Tryptophan?

A: Every batch of L-Tryptophan undergoes rigorous third-party testing, and a Certificate of Analysis (CoA) is available upon request. Please let us know your requirements when placing an order.

Q8: What transportation options are available for L-Tryptophan?

A: We offer multiple shipping options, including express delivery (via DHL, TNT, or FedEx), air freight, and sea freight. Depending on your order size and urgency, we will help you select the most suitable shipping method.

Q9: What certifications does your L-Tryptophan production meet?

A: Our production facility is GMP and ISO 9001 certified, ensuring the highest manufacturing and quality standards. L-Tryptophan is produced in compliance with international feed additive regulations, guaranteeing safety, purity, and efficacy.

Q10: What is the purity level of L-Tryptophan?

A: Our L-Tryptophan has a purity level of ≥98.5%. This high purity ensures reliable performance in feed formulations, supporting animal health and growth.