Patent ID: 7662417

Claim:
A solid preservative compound comprising (a) an anionic hydrocolloid and (b) a cationic preservative derived from the condensation of fatty acids and esterified dibasic amino acids, according to the following formula: where: X − is Br − , Cl − , or HSO 4 − R 1 : is linear alkyl chain from a saturated fatty acid, or hydroxyacid from 8 to 14 atoms of carbon bonded to the α-amino acid group through amidic bond; R 2 : is a linear or branched alkyl chain from 1 to 18 carbon atoms or aromatic group; R 3 : is: and n can be from 0 to 4 wherein (a) and (b) interact to form a solid precipitate compound that retains the microbiological inhibitory activity of the cationic preservative.