Tryptophan, also known as β-indolylalanine, is one of the essential amino acids of the human body. Tryptophan is an important precursor substance for auxin biosynthesis in plants. Its structure is similar to IAA, and it is ubiquitous in higher plants. It is also an important neurotransmitter in the human body-the precursor of serotonin.
Store in cool & dry place, keep away from strong light and heat.
Shelf Life
24 Months
L-Tryptophan Analysis & Specification (Purslane Herb Extract Reference)
ANALYSIS
SPECIFICATION
RESULTS
Appearance
White powder
Complies
Odor
Characteristic
Complies
Size
80mesh
Complies
Loss on Drying
≤7.0%
Complies
Residue on Ignition
≤5.0%
Complies
Pb
<2ppm
Complies
As
<1ppm
Complies
Residual Pesticide
Negative
Complies
Microbiology
Total Plate Count
<1000cfu/g
Complies
Yeast & Mold
Negative
Complies
E.Coli
Negative
Complies
Salmonella
Negative
Complies
Microbiological Controls
Total of bacteria
≤300cfu/g
22cfu/g
Fungi
≤100cfu/g
9cfu/g
Salmgosella
Negative
Complies
Coli
Negative
Complies
Key Applications
1. Health Supplement & Nutritional Supplements: Supports daily wellness and metabolic functions.
2. Finished Dosage Subcontracting: Ideal for Capsules, Softgels, and Tablets manufacturing.
3. Multi-industry Formulations: Suitable for Beverages, Solid Beverages, Food Additives, and Cosmetics.
Frequently Asked Questions
Q1: What is L-Tryptophan and why is it essential?
L-Tryptophan is an essential amino acid, meaning the human body cannot synthesize it naturally and must obtain it through diet or supplementation. It plays a critical role as a precursor to serotonin, a neurotransmitter that regulates mood, sleep, and emotional balance.
Q2: What are the main applications of L-Tryptophan powder?
It is widely used in health supplements, nutritional additives, infant formulas, food and beverage enhancement, pharmaceutical subcontracting (tablets/capsules), and functional cosmetics due to its active metabolic properties.
Q3: How should L-Tryptophan powder be stored for maximum shelf life?
To preserve stability and efficacy, store L-Tryptophan in a cool, dry place. Keep the container tightly sealed and away from direct sunlight, moisture, and extreme heat. Under these conditions, the standard shelf life is 24 months.
Q4: Is the L-Tryptophan powder soluble?
L-Tryptophan is moderately soluble in water and is suitable for solid beverages, capsules, and powder blends. Its physical parameters, including an 80-mesh size, ensure consistent blending qualities.
Q5: What quality standards does your L-Tryptophan adhere to?
Our L-Tryptophan is food-grade with a purity level of 99%. It undergoes strict microbiological controls, resulting in negative yields for E. Coli, Salmonella, and residual pesticides, and keeping heavy metal traces well within safe limits.
Akston Health
