Amino acid definition -- An amino acid is any of a group of organic molecules that consists of a basic aminogroup (-NH2), an acidic carboxyl group (-COOH), and an organic R group (or side chain), which is unique to each amino acid.
A small group of amino acids comprised of isoleucine, phenylalanine, threonine, tryptophan, and tyrosine give rise to both glucose and fatty acid precursors and are thus characterized as being glucogenic and ketogenic.
The precise amino acid content, and the sequence of those amino acids, of a specific protein, is determined by the sequence of the bases in the gene that encodes that protein.
An amino group-containing silicate composition obtained by reacting a silicate oligomer obtained by hydrolyzing, dehydrating and polycondensing a tetraalkoxysilane at a degree of hydrolysis within a range of from 0 to 65%, with an amino alcohol having one or two hydroxyl groups.
The amino alcohol used in the present invention is an amino alcohol having at least one primary, secondary or tertiary nitrogen atom and one or two hydroxyl groups, and it may be gas or liquid.
In a case where the amino group-containing silicate composition of the present invention is to be used for a urethane resin, the amino group-containing silicate composition is used as a dehydrating agent for the polyol component.
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