Process for the microfluidic extraction of molecules of interest from a liquid plant extract, comprising: - a microfluidic chip 10 with a double-Y-channel circuit, comprising two inlets E1 and E2, two outlets S1 and S2, and a main channel, - a first vessel R1 comprising the liquid plant extract F1, a second vessel R2 comprising a solvent F2 for extracting the molecules of interest non miscible with the liquid plant extract F1, said first and second vessels R1, R2 each being in fluid connection with the inlets E1 and E2 of the microfluidic chip 10, - a pressure controller 100 capable of pressurizing the first liquid plant extract F1 and said extraction solvent F2, - a first collector C1 in fluid connection with the microfluidic chip 10, in which the liquid plant extract F1 depleted in molecules of interest is collected, - a second collector C2 in fluid connection with the microfluidic chip 10, in which the extraction solvent F2 enriched in molecules of interest is collected, said extraction process comprising the following steps: a) controlling the pressures P1 and P2 in order to subject the liquid plant extract F1 to a pressure P1 and the extraction solvent F2 to a pressure P2, such that the interface between the two fluids is positioned at the junction point of inlets E1 and E2, b) bringing the liquid plant extract F1 and the extraction solvent F2 into contact with each other in the main channel for a period of time enabling extraction of the molecules of interest, c) collecting the extraction solvent F2 enriched in molecules of interest, and d) optionally, evaporating the extraction solvent F2, wherein the plant extract is a vegetable oil, the extraction solvent is ethanol. - a microfluidic chip 10 with a double-Y-channel circuit, comprising two inlets E1 and E2, two outlets S1 and S2, and a main channel, - a first vessel R1 comprising the liquid plant extract F1, a second vessel R2 comprising a solvent F2 for extracting the molecules of interest non miscible with the liquid plant extract F1, said first and second vessels R1, R2 each being in fluid connection with the inlets E1 and E2 of the microfluidic chip 10, - a pressure controller 100 capable of pressurizing the first liquid plant extract F1 and said extraction solvent F2, - a first collector C1 in fluid connection with the microfluidic chip 10, in which the liquid plant extract F1 depleted in molecules of interest is collected, - a second collector C2 in fluid connection with the microfluidic chip 10, in which the extraction solvent F2 enriched in molecules of interest is collected, said extraction process comprising the following steps: a) controlling the pressures P1 and P2 in order to subject the liquid plant extract F1 to a pressure P1 and the extraction solvent F2 to a pressure P2, such that the interface between the two fluids is positioned at the junction point of inlets E1 and E2, b) bringing the liquid plant extract F1 and the extraction solvent F2 into contact with each other in the main channel for a period of time enabling extraction of the molecules of interest, c) collecting the extraction solvent F2 enriched in molecules of interest, and d) optionally, evaporating the extraction solvent F2, wherein the plant extract is a vegetable oil, the extraction solvent is ethanol. said extraction process comprising the following steps: a) controlling the pressures P1 and P2 in order to subject the liquid plant extract F1 to a pressure P1 and the extraction solvent F2 to a pressure P2, such that the interface between the two fluids is positioned at the junction point of inlets E1 and E2, b) bringing the liquid plant extract F1 and the extraction solvent F2 into contact with each other in the main channel for a period of time enabling extraction of the molecules of interest, c) collecting the extraction solvent F2 enriched in molecules of interest, and d) optionally, evaporating the extraction solvent F2, a) controlling the pressures P1 and P2 in order to subject the liquid plant extract F1 to a pressure P1 and the extraction solvent F2 to a pressure P2, such that the interface between the two fluids is positioned at the junction point of inlets E1 and E2, b) bringing the liquid plant extract F1 and the extraction solvent F2 into contact with each other in the main channel for a period of time enabling extraction of the molecules of interest, c) collecting the extraction solvent F2 enriched in molecules of interest, and d) optionally, evaporating the extraction solvent F2, wherein the plant extract is a vegetable oil, the extraction solvent is ethanol.