Abstract: Provided is a tyrosinase activity inhibitor, a melanin production inhibitor, a skin-whitening agent, and a cosmetic product, which have an excellent tyrosinase activity inhibitory effect with a high level of safety. A tyrosinase inhibitor comprising isopropylmethylphenol as an active ingredient.

Abstract: Provided is an agent for reducing odors of pyrazine derivatives based on an olfactory receptor antagonism. The agent for reducing odors of pyrazine derivatives includes at least one antagonist of olfactory receptor OR5K1 as an active ingredient.

Abstract: A method to identify an agent for reducing an odor of a pyrazine derivative, comprising: adding a test substance and a pyrazine derivative represented by the following Formula (I): wherein R1 represents methyl, ethyl, or acetyl; and R2, R3, and R4 each independently represent hydrogen or methyl, to an olfactory receptor OR5K1 or a polypeptide having at least 80% identity to the amino acid sequence of the olfactory receptor OR5K1; measuring a response of the olfactory receptor to the pyrazine derivative; and identifying a test substance inhibiting the response of the olfactory receptor on the basis of the measured response.

Abstract: Provided is an oil or fat composition of high diacylglycerol content. Even when used in cooking, the cooked food has a good external appearance without darkening, and retains its inherent flavor. Even when used in cooking after storage under light-exposed conditions, the cooked food is provided with a good external appearance and flavor. The oil or fat composition is obtained by combining, at specific contents, (A) an oil or fat of high diacylglycerol content, said oil or fat having a particular composition, (B) a plant sterol and (C) a plant sterol fatty acid ester.

Abstract: A method of manufacturing electrophotographic toner containing particles obtained by fusing aggregate particles obtained by aggregating an aqueous dispersion of a polyester resin for toner includes: mixing together at least a polyester resin, an organic solvent, and a neutralizer to obtain a mixture (Step 1); mixing the mixture obtained in the step 1 with at least water to obtain a resin dispersion (Step 2); removing an organic solvent from the resin dispersion obtained in the step 2 to obtain an aqueous dispersion of a polyester resin (Step 3); and mixing the aqueous dispersion obtained in the step 3 with a surfactant optionally (Step 4), in which the aqueous dispersion of the polyester resin for toner is obtained through the steps 1-4, the surfactant is added in a content of 70-100 weight % based on the total amount of the surfactant added in the steps 2 and/or 4.

Abstract: A method for producing a toner for electrostatic image development containing at least a resin binder and a charge control agent, including step 1: melt-kneading components containing a resin binder and a charge control agent to provide a melt-kneaded product; and step 2: pulverizing the melt-kneaded product, and classifying a pulverized product, wherein the resin binder contains a polyester A obtained by polycondensing an alcohol component containing 1,2-propanediol and a carboxylic acid component containing a rosin compound and an aliphatic dicarboxylic acid compound having 6 to 10 carbon atoms, wherein 1,2-propanediol is contained in the alcohol component of the polyester A in an amount of 85% by mol or more. The toner for electrostatic image development obtained by the method of the present invention can be suitably used in, for example, the development or the like of latent image formed in electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.

Abstract: Provided is a masticatory solid composition including the following components (A) and (B): (A) wheat albumin, and (B) erythritol, xylitol, or a combination thereof, wherein a content mass ratio of the component (B) to the component (A) [(B)/(A)] is 0.25 or more.

Abstract: Cleansing compositions include a mixture of alkyl ether carboxylic acids and/or salts thereof, each having a structure according to formula (1): R1—O—(CH2CH2O)n—CH2—COOM??(1) where R1 is an alkyl group having 4 to 22 carbon atoms, n is a number of from 0 to 20, and M is a hydrogen atom, alkali metal, alkaline earth metal, ammonium, or organic ammonium. The mixture includes alkyl ether carboxylic acids and/or salts having at least two different alkyl groups R1, an average carbon number of alkyl groups R1 of alkyl ether carboxylic acids and/or salts in the mixture is from 10.8 to 12.

Abstract: A toner for electrostatic image development containing at least a resin binder, the resin binder being composed of a crystalline resin and an amorphous resin, wherein the crystalline resin contains a crystalline polyester obtained by polycondensing an alcohol component containing an aliphatic diol having 2 to 10 carbon atoms and a carboxylic acid component containing an aromatic dicarboxylic acid compound and an aromatic tricarboxylic or higher polycarboxylic acid compound, wherein the crystalline polyester has a weight-average molecular weight of from 20,000 to 150,000, and wherein the crystalline resin and the amorphous resin are in a weight ratio, i.e. crystalline resin/amorphous resin, of from 55/45 to 95/5. The toner for electrostatic image development of the present invention can be suitably used in, for example, the development or the like of latent image formed in electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.

Abstract: Provided is a hair frizziness reducing agent containing a lower alcohol and water, having a viscosity of from 1 to 90,000 mPa·s and used by leaving, after application to the scalp, the agent as is without washing it away.

Abstract: A method for producing a toner including the step of melt-kneading a mixture containing a resin binder and a wax with a twin-screw kneader, wherein the resin binder contains three kinds of a resin R1, a resin R2 and a resin R3 having different softening points to each other, wherein the wax contains at least two kinds of a wax W2 and a wax W3 having different melting points to each other, wherein the softening points of R1, R2 and R3 and the melting point W2 meet certain relationships, and wherein the mixture is supplied to the twin-screw kneader in an amount of from 1.3 to 5.0 kg/hr·cm2 per unit cross-sectional area of the screw. The toner obtainable by the method of the present invention can be suitably used in, for example, the development or the like of latent image formed in electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.

Abstract: A polishing liquid composition includes composite oxide particles containing cerium and zirconium, a dispersing agent, and an aqueous medium. A powder X-ray diffraction spectrum of the composite oxide particles obtained by CuK?1 ray (?=0.154050 nm) irradiation includes a peak (first peak) having a peak top in a diffraction angle 2? (? is a Bragg angle) range of 28.61 to 29.67°, a peak (second peak) having a peak top in a diffraction angle 2? range of 33.14 to 34.53°, a peak (third peak) having a peak top in a diffraction angle 2? range of 47.57 to 49.63°, and a peak (fourth peak) having a peak top in a diffraction angle 2? range of 56.45 to 58.91°. A half-width of the first peak is 0.8° or less.

Abstract: A toner for non-contacting fusing containing toner matrix particles containing a resin binder and an external additive having an average particle size of from 10 to 100 nm, wherein the external additive is externally added to the toner matrix particles, wherein the resin binder contains one or more polyesters, wherein a carboxylic acid component of the polyester contains one or more isophthalic acid compounds and one or more fumaric acid/maleic acid compounds, wherein the isophthalic acid compound is contained in an amount of from 10 to 35% by weight, the fumaric acid/maleic acid compound is contained in an amount of from 1 to 15% by weight, and the isophthalic acid compound and the fumaric acid/maleic acid compound are contained in a total amount of from 20 to 36% by weight, of a total amount of the entire raw material monomers of the polyester in the resin binder, and wherein the toner has a softening point of from 90° to 120° C.