L Tyrosine Fermentation

L Tyrosine Fermentation

L tyrosine is one of the 22 kinds of amino acids, the only and first manufacturer in China who use fermentation way to manufacture L tyrosine. It is used to synthesize proteins in cells...
Product description

L tyrosine is one of the 22 kinds of amino acids, and its other names are: 3-(4-hydroxyphenyl)-L-alanine, 2-amino-3-(4-hydroxyphenyl)-propanoic acid, 2-amino-3-(p-hydroxyphenyl)propionic acid, 4-hydroxyphenylalanine, L-3-[4-hydroxyphenyl]alanine, ect.

L- Tyrosine 


L- Tyrosine[Tyr, Y]









White crystals or crystalline powder


1. Food and Feed additive

2. Nutritional Supplements

3. API or API intermediate


25 kgs/drum


Sealed storage, store at RT.

Place in a cool and dry environment, keep away from fire and heat.

What is L-Tyrosine?

It is an conditional essential amino acid and ketogenic and glucogenic amino acid, which contains polar side groups. It is used to synthesize proteins in cells and its codons are UAC and UAU. 

How L-Tyrosine is synthesized?

Many plants/factories can synthesize it by chemical methods, plant extraction and fermentation ways.

(1) Tyrosine can be synthesized in the body by phenylalanine, and can also be obtained from many high protein foods, such as chicken, Turkey, fish, milk, yogurt, cheese, cheese, peanuts, almonds, pumpkin seeds, sesame seeds, soybeans, Lima beans, avocado and bananas, ect[1]. People with phenylketonuria usually take tyrosine supplements because they can't eat phenylalanine. But many high tyrosine foods also contain phenylalanine, which is therefore not a good substitute.

(2) Fermentation 

Shandong Yangcheng Biotech Co., Ltd is the unique and first manufacturer in China who use fermentation way to manufacture L tyrosine.

package l tyrosine storage.jpg


1. L- Tyrosine helps form three important neurotransmitters: dopamine, serotonin, and norepinephrine, which play functions like memory, mood, appetite, and muscular coordination. In pharm field, L-Tyrosine is used in  hyper-thyroidism treatment.

2. L- Tyrosine is a naturally occurring amino acid, so it is available in supplement form too. In food field, it can be used to form special flavoring when reacted with saccharides under heated environment.

3. As a neurotransmitter,  L- Tyrosine acts as chemical messengers to the body's billions of nerve and brain cells.

The advantages of fermented tyrosine are:

More resources; high yield, low cost; safety; environmental protection; sustainable development; lower heavy metals.

fermented L tyrosine corn source.jpg

[1] Daisy Whitbread, MScN. Top 10 Foods Highest in Tyrosine, https://www.myfooddata.com/articles/high-tyrosine-foods.php

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