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Home > Biochemical Engineering > Amino Acids and Proteins (Find 51 items)

Amino Acids and Proteins

L-Arginine, monohydrochloride

(1119-34-2)
An essential amino acid for human development. Precursor for nitric oxide. Ammonia detoxicant (hepatic failure); diagnostic aid (pituitary function).Used as pharmaceutical raw materials and food additives. Nutritional supplements.

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L-Theanine

(34271-54-0)
Used as a flavoring agent

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L-Lysine, hydrochloride

(10098-89-2)
Amino acid drugs can promote children~"s growth and development, increase appetite and gastric acid secretion, used for children~"s recovery after illness and lactation during pregnancy. There are also lysine derivatives and compound preparations, all of which are amino acid drugs. Such as L-lysine acetate, lysine pill for injection, lysine tablets, lysine chewable tablets, lysine dry syrup (for children), lysine-B12 chewable tablets (for children) , Lysine-B12 particles (for children), lysine-B

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L-Asparagine, hydrate (1:1)

(5794-13-8)
L-Asparagine is a naturally occurring amino acid that is not an essential for humans and can be synthesized from central metabolic pathway intermediates.

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L-Histidine hydrochloride monohydrate

(5934-29-2)
The precursor of histamine depends on the catalysis of histidine decarboxylase

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L-(+)Sodium glutamate

(142-47-2)
Disodium glutamate, abbreviated DSG, (Na2C5H7NO4) is a sodium salt of glutamic acid. It used as a flavoring agent to impart umami flavor.

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L-Homoarginine

(156-86-5)
Homoarginine as marker for exogenous protein
Absorption and secretion of free homoarginine in the intestine: when 9 mmol homoarginine were infused into the proximal part of the jejunum, there was a 99.9% disappearance of the free amino acid homoarginine up to the ileum. In addition, following the infusion of 9 mmol homoarginine into the vena jugularis less than 0.2% of the infused homoarginine appeared in the intestine.
We concluded from these data that with the homoarginine method

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Protein is the material basis of life. Without protein, there is no life. Every cell and all important components in the body have proteins involved. Amino acid (Aminoacid) is the basic unit that constitutes a protein, giving a specific molecular structure to the protein, so that his molecules have biochemical activity. Proteins are important active molecules in organisms, including enzymes and enzymes that catalyze metabolism. Different amino acids are chemically polymerized into peptides, the original fragments of a protein, which are precursors for protein production. The basic unit of protein is amino acids, which form peptide chains through dehydration and condensation. A protein is a biological macromolecule composed of one or more polypeptide chains. Each polypeptide chain has 20 to hundreds of amino acid residues; various amino acid residues are arranged in a certain order. The organelles that produce proteins are ribosomes.

Frequently Asked Questions

What are the main functions of amino acids and proteins in the human body?

Amino acids and proteins play essential roles in numerous physiological processes. Amino acids serve as the building blocks of proteins, which are crucial for tissue repair, enzyme and hormone production, immune function, and nutrient transport. Additionally, certain amino acids act as neurotransmitters or precursors to bioactive molecules. Understanding these functions is vital for applications in nutrition, pharmaceuticals, and biotechnology.

How are amino acids used in the pharmaceutical and nutraceutical industries?

In the pharmaceutical industry, amino acids are used to formulate intravenous solutions, develop therapeutic agents, and support drug delivery systems. In nutraceuticals, they are key ingredients in dietary supplements aimed at muscle recovery, cognitive health, and metabolic support. High-purity, pharma-grade amino acids must meet strict regulatory standards such as USP, EP, or JP to ensure safety and efficacy.

What is the difference between essential and non-essential amino acids?

Essential amino acids cannot be synthesized by the human body and must be obtained through diet or supplementation—examples include leucine, lysine, and valine. Non-essential amino acids, such as alanine and glutamine, can be produced endogenously. Both types are critical for protein synthesis and metabolic health, but essential amino acids are often prioritized in clinical nutrition and sports supplements due to their dietary dependency.

How are recombinant proteins produced and applied in biotechnology?

Recombinant proteins are produced by inserting target genes into host cells (e.g., E. coli, yeast, or mammalian cells) using genetic engineering techniques. These proteins are widely used in research, diagnostics, and therapeutics—including monoclonal antibodies, vaccines, and enzymes like insulin or growth hormones. Rigorous downstream processing and quality validation are required to ensure functionality, purity, and safety for biomedical applications.

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