Nippon Paint Compnay, Ltd.

Tokyo Institute of Technology

Sapporo Breweries Limited

The Nisshin Oil Mills, Ltd.

Yoshio Okahata

Naoki Yamamori

Hirotaka Kaneda

Ryoji Hamade

Naofumi Takahashi

Toshinori Sato

Takuro Sada

The food astringency evaluating method of the invention comprises a step in which an astringent component of a food is reacted with a peptide to form a complex, a step in which a prescribed measured value is obtained corresponding to the amount of formation of the complex, and a step in which the strength of astringency is determined from the obtained measured value based on a previously obtained correlation between strength of astringency and the prescribed measured value.

Food astringency evaluating method using lipid membrane sensors with immobilized peptides

This invention provides a precursor compound of a novel fluorescence-labeled probe for DNA, prepared by covalent binding of a fluorescent substance such as fluorescein isothiocyanate, wherein a conjugating group was bounded, with aminoalkylate phenylamine. This invention also provides a novel fluorescence-labeled probe for DNA by diazotizing amino group of phenylamine contained in the precursor compound. Furthermore, a fluorescence labeled plasmid can be produced by conjugating the fluorescence-labeled probe and purine ring of guanine contained in the DNA plasmid through diazonium group.

Fluorescence-labeled probe for DNA and a fluorescence-labeled plasmid

This invention is related to glucoxide derivatives for enzyme modification of the following general formula (1), to provide a lipid-coated enzyme showing high activity in organic solvents; antifouling paint compositions containing a lipid-coated enzyme being stable in organic solvents by coating with a C.sub.6 to C.sub.30 lipid, and a paint resin, to be capable of forming paint films having good antifouling activity and durability and allowing an enzyme to retain good stability in the paint and in paint films; and self-polishing antifouling paint compositions containing an enzyme-susceptible resin and a lipid-coated enzyme capable of catalyzing the degradation of said resin and being stable in organic solvents by coating with a C.sub.6 to C.sub.30 lipid, to retain the antifouling effect for a prolonged period of time without adversely affecting the environment. ##STR1##

Glucoxide derivatives for enzyme modification, lipid-coated enzymes,

An agent or device for the determination of antigen or antibody comprising capsules of a water-insoluble, dye-permeable polymer or a liquor-pool covered by said polymer, an antien, antibody or hapten immobilized on the surface of said polymer, and a dye solution enclosed or held in said capsules or liquor-pool, and a method for determining antigen or antibody using said agent or device, which can be conveniently used for the serodiagnosis of various diseases.

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Kawasaki, Japan

Yoshio Okahata