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Home > Biochemical Engineering > Amino Acids and Proteins (Find 232 items)

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Amino Acids and Proteins

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Amino Acids and Proteins

L-Valine

(72-18-4)
L-Valine is an essential amino acid and one of 20 proteinogenic amino acids. L-Valine cannot be manufactured by the body and must be acquired through diet or supplementation. L-valine is found in grains, dairy products, mushrooms, meats, peanuts and soy proteins. L-Valine has been used in studies to attenuate arrhythmias and induce hypotensive effects.

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L-Phenylalanine

(63-91-2)
L-Phenylalanine is an essential amino acid. L-Phenylalanine is biologically converted into L-tyrosine, another one of the DNA-encoded amino acids, which in turn is converted to L-DOPA and further converted into dopamine, norepinephrine, and epinephrine. L-Phenylalanine is produced for medical, feed, and nutritional applications such as in the preparation of Aspartame.

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L-Valine

(72-18-4)

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L-Leucine

(61-90-5)
Leucine (abbreviated as Leu or L; encoded by the six codons UUA, UUG, CUU, CUC, CUA, and CUG) is an α-amino acid used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH+ 3 form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO− form under biological conditions), and an isobutyl side chain, classifying it as a nonpolar (at physiological pH) amino acid. It is essential in humans—meaning the body cannot synthesize

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(±)-Threonine

(80-68-2)
L-threonine ([72-19-5]) is an essential amino acid. The physiological effect of DL-threonine is that when L-threonine is half-deficient, it is prone to loss of appetite, fatty liver embolism, sumamol Acid cannot be synthesized in higher animals and must be supplied from outside the body. In addition to supplementing L-lysine, cereal protein is followed by L-threonine. This is because although the content of L-threonine is large, the combination of threonine and peptide in protein is difficult to

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L-Serine

(56-45-1)
Medical use: parenteral nutrition, dietary supplement.Used as biochemical reagents and food additives.It is used in biochemical research, preparation of tissue culture medium, and amino acid nutrition medicine in medicine.

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L-Threonine

(72-19-5)
1. Amino acid, nutrient 2. L-enantiomer It is used in biochemical research, as an amino acid nutrition medicine in medicine, mainly used to treat anemia.One of the essential amino acids for the human body, which can be used to improve nutrition and improve physical fitness.

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L-Isoleucine

(73-32-5)
antipsychotic.Used as amino acid injection, compound amino acid infusion, food additive.Nutritional supplements. L-isoleucine is one of the essential amino acids of the human body,It is used in biochemical research and as a nutritional supplement in medicine.

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L-Histidine

(71-00-1)
L-Histidine is an essential amino acid for human development which the body cannot produce on its own. L-Histidine is one of the 22 proteinogenic amino acids. L-Histidine precursor to histamine (H436500) and a component of carnosine.

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Creatine

(57-00-1)
Biochemical research, health products, etc.

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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.

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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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