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Home > Biochemical Engineering > Amino Acids and Proteins (Find 52 items)

Amino Acids and Proteins

L-Arginine

(74-79-3)
Nitric oxide synthase substrate can be converted to citrulline and NO. Induces insulin secretion by a mechanism that depends on NO.Used as pharmaceutical raw materials and food additives. Nutritional supplements; flavoring agents. For biochemical research, various types of hepatic coma and viral hepatic alanine aminotransferase abnormalities

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L-(+)-Cysteine

(52-90-4)
Bread improver; nutritional supplement; antioxidant; color protectant. It has detoxification effect on acrylonitrile and aromatic acidosis; it has the effect of preventing radiation damage; it has the effect of treating bronchitis and phlegm; it has the effect of absorbing alcohol and converting it into acetaldehyde in the body. In biochemical research, it is used as an antidote for hepatitis, liver poisoning, radiopharmaceutical poisoning, antimony poisoning, etc. in medicine.

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L-Theanine

(3081-61-6)
A non-protein amino acid mainly found naturally in the green tea plant. It may have activity in modulating the metabolism of cancer chemotherapeutics agents.Used as a food additive.The sedative effect when added to food, the flavor improvement effect of L-theanine, strengthens immunity, lowers blood pressure, improves the brain, promotes the brain's learning and memory function, and effectively enhances the liver's detoxification function

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L-Tryptophan

(73-22-3)
In nutrition & research, medicine, as dietary supplement, cereal enrichment tryptophan.Improve nutrition and strengthen physical fitness.Used in biochemical research, as a sedative in medicine.

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L-Glutamic acid

(56-86-0)
Biologically significant amino acid, plant growth regulator, fungicide.It is used in biochemical research and medicine for hepatic coma, preventing epilepsy, reducing ketonuria and ketemia.Used in pharmaceuticals, food additives, nutrition enhancers.Salt substitutes, nutritional supplements, umami flavors

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L-Proline

(147-85-3)
Nutrient &or dietary supplement food additive.Used in biochemical research, medicine for malnutrition, protein deficiency, gastrointestinal disease, scald and postoperative protein supplement, etc.Nutritional supplements. Flavor. Amino acid-carbonyl reaction occurs when co-heated with sugar to generate special flavor substances

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L-Alanine

(56-41-7)
This product is used to make vitamin B6, synthetic calcium pantothenate and other organic compounds. Adding to food can enhance the flavoring effect of chemical seasonings, improve the taste of sweeteners and the sour taste of organic acids, improve the quality of alcoholic beverages, prevent the oxidation of oils and improve the flavor of impregnated foods. It can also be used as a biochemical reagent for biochemical and microbiological research.

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Leucine

(328-39-2)
Nutritional supplements for biochemical research.

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L-Lysine

(56-87-1)
A moderate serotonin antagonist and essential amino acid.

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L-Tyrosine

(60-18-4)
L-Tyrosine is one of the 22 proteinogenic amino acids that are used by cells to synthesize proteins. L-Tyrosine is biologically converted from L-phenylalanine and is in turn is converted to L-DOPA and further converted into the neurotransmitters: dopamine, norepinephrine, and epinephrine.

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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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