N-acylcarnosines and their use as antioxidants
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United States of America Patent
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Apr 2, 1996
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app pub date -
Dec 21, 1994
filing date -
Feb 19, 1991
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Abstract
An N-acylamino acid compound represented by the general formula (1): R--CO--(NH--X--CO).sub.n --OR.sup.1 (1) wherein (NH--X--CO) is an amino acid residue, X in (NX--X--CO) is variable with the kind of amino acid to be used, R--CO is a saturated or an unsaturated fatty acid residue having 6 to 24 carbon atoms, R.sup.1 is hydrogen atom, sodium atom, potassium atom, or methyl group and n is an integer in the range of from 1 to 3, indicating that at least one histidine is contained as a component amino acid is disclosed, which is obtained by causing an N-hydroxysuccinimide ester to react with an amino acid or a peptide. The compound excels in antioxidizing power, emulsifying power, antibacterial power, chelating power, infrared absorbing power, and humidity-retaining power.
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