Tryptophan Production Solution
Tryptophan (Trp) is an important essential amino acid that the human body cannot synthesize on its own and must be obtained through diet or external supplementation. It is a critical component in protein synthesis and serves as a precursor to various bioactive substances (such as serotonin and melatonin), playing a vital role in neurological regulation, immune function, and metabolic balance. The production of tryptophan primarily involves three technical approaches: microbial fermentation, chemical synthesis, and enzymatic catalysis. Among these, the predominant method is microbial fermentation.
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Process Flow of Microbial Fermentation Method
Starch
01
Strain Preparation
Strain Preparation
Genetically engineered strains such as Escherichia coli or Corynebacterium glutamicum are selected and cultivated on slant cultures, followed by seed expansion, before being inoculated into fermentation tanks.
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02
Fermentation Stage
Fermentation Stage
A culture medium is prepared using glucose, yeast extract/corn slurry, and inorganic salts as raw materials. After sterilization, the pH is maintained at around 7.0, the temperature is controlled at approximately 35°C, and dissolved oxygen levels are kept at 30% during fermentation. The fermentation process lasts 48-72 hours.
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03
Extraction and Purification
Extraction and Purification
After fermentation, bacterial cells and solid impurities are removed via centrifugation or filtration. Tryptophan in the fermentation broth is then adsorbed using ion exchange and impurities are eluted. The resulting tryptophan crystals are dissolved in hot water, the pH is adjusted to the isoelectric point, and the solution is cooled to precipitate tryptophan crystals. The precipitated crystals are dried using spray drying or vacuum drying to obtain the final dried tryptophan product.
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04
Byproduct Treatment
Byproduct Treatment
Bacterial proteins from the fermentation process can be used as feed additives, while the organic matter in the waste liquid requires anaerobic treatment before discharge.
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Tryptophan
Tryptophan: Product Forms and Core Functions
Main Product Forms of Tryptophan
1. L-Tryptophan
The naturally occurring bioactive form, widely used in pharmaceuticals, food, and feed additives.
Common dosage forms: powder, capsules, tablets.
2. Tryptophan Derivatives
5-Hydroxytryptophan (5-HTP): A direct precursor for serotonin synthesis, used for anti-depression and sleep improvement.
Melatonin: Produced through tryptophan metabolism, regulates the sleep-wake cycle.
3. Industrial-Grade Tryptophan
Used in animal feed (e.g., for pigs and poultry) to promote growth and reduce stress.
Core Functions
1. Neurological Regulation and Mental Health
Synthesizes serotonin ("happiness hormone") to improve depression, anxiety, and mood disorders.
Converts to melatonin to regulate sleep patterns and alleviate insomnia.
2. Protein Synthesis and Metabolism
As an essential amino acid, it participates in the body’s protein construction, promoting muscle growth and repair.
3. Immune Regulation
Supports immune cell function and reduces inflammatory responses.
4. Animal Nutrition
When added to feed, it reduces stress-related behaviors in animals (e.g., tail-biting in pigs) and improves feed efficiency.
Infant formula milk powder
Pharmaceuticals and health products
Dietary-supplement
Feed
Lysine Production Projects
30,000 ton lysine production project, CIS
30,000 ton Lysine Production Project
Location:
Capacity: 30,000 ton/year
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We provide customers with full life cycle engineering services such as consulting, engineering design, equipment supply, engineering operation management, and post renovation services.
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Frequently Asked Questions
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