Compositions Comprising Luffa Cylindrica Root Extract

A method for preparing a root extract of the plant Luffa cylindrica, wherein the root extract comprises bryonolic acid, and wherein the bryonolic acid represents at least 10% by weight, relative to the total weight of the dry root extract comprising the following steps:

• a) cultivating the plant Luffa cylindrica under soilless conditions,
• b) stimulating the roots of the Luffa cylindrica plant,
• c) solid/liquid extraction by a root maceration of the roots stimulated in step b), wherein the maceration comprises contacting the roots with a solvent selected from the group consisting of isopropyl myristate, triglycerides, tri-ethyl citrate, dicaprylyl ether, glyceryl isostearate, glyceryl stearate, ethyl acetate, vegetable oils and a mixture thereof,
• d) recovery of the extract obtained in step c), and
• e) optionally, dilution and/or clarification of the extract recovered in step d) by successive filtrations.

A cosmetic or dermatological or nutraceutical composition comprising a root extract of the plant Luffa cylindrica prepared by a method comprising the following steps:

• a) cultivating Luffa cylindrica under soilless conditions,
• b) stimulating the roots of the Luffa cylindrica plant,
• c) solid/liquid extraction by root maceration of the roots stimulated in step b), wherein the maceration comprises contacting the roots with a solvent selected from the group consisting of isopropyl myristate, triglycerides, tri-ethyl citrate, dicaprylyl ether, glyceryl isostearate, glyceryl stearate, ethyl acetate, vegetable oils and a mixture thereof,
• d) recovery of the extract obtained in step c), and
• e) optionally, dilution and/or clarification of the extract recovered in step d) by successive filtrations.