A process for producing particles of at least one polyhydroxyalkanoate (PHA), the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: providing an aqueous suspension of the at least one PHA; and subjecting the aqueous suspension of the at least one PHA to a process of atomization by spray drying. A process for producing particles of at least one PHA, the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: atomizing an aqueous suspension of the at least one PHA by spray drying the aqueous suspension.

A process for producing particles of at least one polyhydroxyalkanoate (PHA), the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: providing an aqueous suspension of the at least one PHA; and subjecting the aqueous suspension of the at least one PHA to a process of atomization by spray drying. A process for producing particles of at least one PHA, the particles having an average diameter (d50) greater than or equal to 0.1 μm and less than or equal to 100 μm, may include: atomizing an aqueous suspension of the at least one PHA by spray drying the aqueous suspension.

The present invention relates to a hydroxyapatite-supporting porous silica particle, in which hydroxyapatite is supported on a surface a spherical porous silica particle and inner surfaces of pores of the spherical porous silica particle, and in which the hydroxyapatite-supporting porous silica particle has a circularity of 0.760 or larger, a method for producing the hydroxyapatite-supporting porous silica particles, and a composition containing the hydroxyapatite-supporting porous silica particle.

The invention relates to poly(oligo(ethylene glycol) methacrylate) microgels, to the process for preparing same and the uses thereof in various fields of application such as optics, electronics, pharmacy and cosmetics.

These microgels have the advantage of being monodisperse, pH-responsive and temperature-responsive. They can carry magnetic nanoparticles or biologically active molecules. These microgels may also form transparent films, which have novel optical and electromechanical properties.

A culture product comprising a large quantity of ethyl benzoate and has a more complex and fresher fruity aroma than a chemically synthesized product.

The culture product is obtained by culturing a microorganism belonging to the genus Wickerhamomyces in a milk component-containing culture medium.

The present invention relates to a cosmetic composition in the form of an oil-in-water emulsion comprising: (i) at least one C.sub.16-C.sub.30 fatty alcohol; (ii) at least one anionic surfactant of general formula (I): RCOY(CH.sub.2)nSO.sub.3M; (iii) at least one oil; (iv) at least one wax, and (v) at least one hydrophilic solvent, the weight ratio of anionic surfactant(s) of general formula (I)/fatty alcohol(s) ranging from 1/5 to 1/3, said composition comprising from 1% to 10% by weight of wax(es) relative to the total weight of the composition. The present invention also relates to a process for preparing said composition and a cosmetic makeup and/or care process.

The present invention relates to a cosmetic composition in the form of an oil-in-water emulsion comprising: (i) at least one C.sub.16-C.sub.30 fatty alcohol; (ii) at least one anionic surfactant of general formula (I): RCOY(CH.sub.2)nSO.sub.3M; (iii) at least one oil; (iv) at least one wax, and (v) at least one hydrophilic solvent, the weight ratio of anionic surfactant(s) of general formula (I)/fatty alcohol(s) ranging from 1/5 to 1/3, said composition comprising from 1% to 10% by weight of wax(es) relative to the total weight of the composition. The present invention also relates to a process for preparing said composition and a cosmetic makeup and/or care process.

There is provided a spherical organic-inorganic composite particle having good biodegradability. The organic-inorganic composite particle according to the present invention includes 1 to 79% by weight of a silica component and 21 to 99% by weight of a biodegradable plastic. The organic-inorganic composite particle has an average particle diameter d.sub.1 of 0.5 to 25 μm, a true density of 1.03 to 2.00 g/cm.sup.3, and a sphericity of 0.80 or more. A cosmetic product including the organic-inorganic composite particle having such properties has excellent texture properties.

There is provided a spherical organic-inorganic composite particle having good biodegradability. The organic-inorganic composite particle according to the present invention includes 1 to 79% by weight of a silica component and 21 to 99% by weight of a biodegradable plastic. The organic-inorganic composite particle has an average particle diameter d.sub.1 of 0.5 to 25 μm, a true density of 1.03 to 2.00 g/cm.sup.3, and a sphericity of 0.80 or more. A cosmetic product including the organic-inorganic composite particle having such properties has excellent texture properties.

The invention relates to a dispersion containing at least one rhamnolipid derivative and also to the use of the rhamnolipid derivatives as emulsifier or dispersing aid.