Abstract: The present invention relates to a composition comprising an active plant extract containing superoxide dismutase, said extract being coated and/or microencapsulated in a fat-soluble agent based on a fatty substance.

Abstract: A process for circulating an aqueous foam in a wellbore includes the steps of forming a foam from an aqueous composition having a determined pH value, injecting the foam into a well so that it circulates from the surface to the well bottom and then back from the well bottom to the surface, and then changing the pH value of the foam when it returns to the surface. The aqueous composition from which the foam is made includes at least one ionic surfactant whose charge does not practically depend on the pH value and a polyampholytic polymer whose global charge depends on the pH value. This composition gives the foam the property that when the pH of the foam is varied at the surface of the well, the charge of the polyampholytic polymer is modified and the foam becomes destabilized and breaks more readily.

Abstract: A lateral MOS transistor including a gate and drain and source regions of a first conductivity type formed in a substrate of a second conductivity type connected to a first power supply, wherein a doped buried layer of the first conductivity type extends under said drain region and under a portion of the gate, the buried layer being connected to the gate via a one-way connection.

Abstract: The subject of the present invention is a soluble Cucumis melo protein extract having a superoxide dismutase enzyme activity greater than 30 units/mg of proteins as well as, preferably, a catalase enzyme activity greater than 45 units/mg of proteins.Preferably, the protein extract according to the invention is obtained from a Cucumis melo variety obtained by genetic crossing which has a shelf life of the order of 14 days such as the 95LS444 line or one of the hybrids obtained from this line.The subject of the invention is also the use for cosmetic purposes (skin ageing, hair care), medical purposes (anticancer agents for the digestive system, antioxidant), food purposes (replacement of synthetic antioxidants) and contains, as active ingredient, an optionally purified protein extract.

Abstract: The subject of the present invention is a soluble Cucumis melo protein extract having a superoxide dismutase enzyme activity greater than 30 units/mg of proteins as well as, preferably, a catalase enzyme activity greater than 45 units/mg of proteins.Preferably, the protein extract according to the invention is obtained from a Cucumis melo variety obtained by genetic crossing which has a shelf life of the order of 14 days such as the 95LS444 line or one of the hybrids obtained from this line.The subject of the invention is also the use for cosmetic purposes (skin ageing, hair care), medical purposes (anticancer agents for the digestive system, antioxidant), food purposes (replacement of synthetic antioxidants) and contains, as active ingredient, an optionally purified protein extract.

Abstract: An essentially pure substance has a structure of a Nod factor or one of its analogues. The Nod factor is characterized by the fact that its biosynthesis is controlled by at least one nodulation gene (nodA,B,C) common to the Rhizobiaceae, in particular to the genera Rhizobium, Bradyrhizobium, Sinorhizobium and Azorhizobium. This substance consists of a lipo-oligosaccharide which is not a derivative of the exopolysaccharides and which has the general formula (I). In formula (I), the Nod factor of which it has the structure is a plant-specific symbiotic signal and is capable of enhancing the capacity of the bacteria of infect the host plant with which it is associated and/or of accelerating the formation of nodules on the host plant with which it is associated and/or of inducing the transcription of symbiotic genes of the leguminoseae. Applications to the treatment of plants and as an active therapeutic agent in humans and animals.