PROCESS FOR THE ENZYMATIC PREPARATION OF ORGANIC ESTERS OF ASCORBIC ACID OR ERYTHORBIC ACID
ENZYMATIC LIQUID DETERGENT COMPOSITION Michael P Aronson, Martin Cardinali, Jack T McCown assigned to Lever Brothers Company Division of Conopco Inc
Kanehiko Enomoto, Takao Miyamori, Akihiro Sakimae, Ryozo Numazawa, Otake, Japan assigned to Mitsubishi Rayon Co Ltd
The invention relates to the stabilization of mixtures of proteolytic and lipolytic enzymes in a liquid medium such as a liquid detergent composition. By inclusion therein ofa stabilizing system comprising a polyol and a boron compound which are capable of reacting with each other whereby the polyol has a first binding constant with the boron compound of at least 500 I/mole and a second binding constant of at least 1,000 12/mole2, the stability of the lipase in the presence of the protease is significantly improved. The lipase is preferably obtained from Humicola lanuginosa, and the stabilizing system preferably comprises a mixture of sorbitol and borax.
A process for the preparation of an organic ester of ascorbic acid or erythorbic acid represented by the general formula (II) or (III): See Patent for Chemical Structure wherein RI is alkyl, aralkyl, or aryl, by reacting ascorbic acid or erythorbic acid with an organic or an ester thereof of the general formula (I): wherein Rl is as defined above and R2 is hydrogen, methyl, ethyl or propyl, in an organic solvent in the presence of an ester hydrolase.
5089112 ELECTROCHEMICAL BIOSENSOR BASED ON IMMOBILIZED ENZYMES AND REDOX POLYMERS
SO89392 FLUOROGENIC SUBSTRATES FOR MEASUREMENT OF LYSOSOMAL ENZYME ACTIVITIES WITHIN INTACT CELLS
Terje A Skotheim, Yoshiyuki Okamoto, Paul D Hale assigned to Associated Universities Inc The present invention relates to an electrochemical enzyme biosensor for use in liquid mixtures of components for detecting the presence of, or measuring the amount of, one or more select components. The enzyme electrode of the present invention is comprised of an enzyme, an artificial redox compound covalently bound to a flexible polymer backbone and an electron collector.
Stephen P F Miller, Roscoe Brady assigned to The United States of America as represented by of the Department of Health and Human Services Fluorogenic substrates and compositions containing the same are useful for detecting en-