Abstract: The present invention relates to a process for obtaining a furan lipid-rich unsaponifiable material from avocado, which comprises the successive steps (1) of controlled dehydration of fresh avocados or of avocados that have undergone preliminary transformations, (2) of extraction of the oil from dehydrated fruit, (3) of a heat treatment of the extracted oil and of a step of concentration of the unsaponifiable fraction of the oil or alternately, these two operations possibly being carried out successively in this order or in the reverse order, and finally (4) a step of saponification and of extraction of the unsaponifiable material.

Abstract: The invention concerns the use of at least an oil derived from the seeds of the gourd family selected from the group consisting of Lagenaria, Luffa and Momordica, for preparing a composition designed to inhibit 5?-reductase activity, and the use of said oil for preparing a composition for treating prostatic hypertrophy, prostatic adenoma, acne, hyperseborrhea, alopecia, and hirsutism. The invention also concerns cosmetic treatment methods, in particular for greasy skin. The invention further concerns the use of at least an oil derived from seeds of the gourd family in a nutritional food composition for humans and/or animals as additive for inhibiting 5? reductase activity.

Abstract: The present invention relates to a process for obtaining a furan lipid-rich unsaponifiable material from avocado, which comprises the successive steps (1) of controlled dehydration of fresh avocados or of avocados that have undergone preliminary transformations, (2) of extraction of the oil from dehydrated fruit, (3) of a heat treatment of the extracted oil and of a step of concentration of the unsaponifiable fraction of the oil or alternately, these two operations possibly being carried out successively in this order or in the reverse order, and finally (4) a step of saponification and of extraction of the unsaponifiable material.

Abstract: The invention concerns a cosmetic or dermatological composition for protection against ultraviolet radiation, based on inorganic screening agent, characterized in that it comprises a water-in-oil emulsion containing a combination of at least a particulate inorganic sunscreening agent, selected among the group consisting of titanium dioxide, zinc oxide and mixtures thereof, and at least an emulsifier selected among the group consisting of silicone derivatives with glycosidic constituent, the particulate screening agent being homogeneously dispersed in the water-in-oil emulsion.

Abstract: The invention concerns a method for preparing a fatty substance ester, characterised in that it consists in subjecting to an esterification reaction at least a fatty substance with at least an alcohol compound selected from the group consisting of sterols, stanols, 4-methylsterols and their hydrogenated homologous, triterpene alcohols and their hydrogenated homologues, and mixtures thereof, in the presence of at least a solid catalyst selected in the group consisting of lanthanide oxides and the mixtures of said oxides.

Abstract: The invention concerns a method for extracting usaponifiable matters from a vegetable oil comprising at least a saponification step whereby the oil is transformed into a hydro alcoholic solution, a step for extracting the hydro alcoholic solution with a organic solvent such as chloro-1-butane, preferably the treated vegetable oil is avocado or soya oil.

Abstract: The present invention relates to a method for producing an avocado leaf extract rich in furanic lipids, the raw material for which consists of avocado leaves, and which comprises the following steps: a liquid-solid extraction step followed by evaporation under vacuum, and a heat treatment step between 80 and 120° C. which is continued for a period of between 5 and 72 hours, it being possible for these two steps to be carried out in this order or in the reverse order.

Abstract: This invention relates to improved cosmetic compositions. It has been found that cosmetic compositions can be improved by adding to the formula a non-saponifiable fraction of an animal or vegetable oil. An animal or vegetable oil may also be present in the cosmetic composition, in which case it is preferably present in an amount below the conventional quantity and the non-saponifiable fraction is present in an amount at least equal to the amount of non-saponifiable material which would be extracted from the omitted portion of the animal or vegetable oil.