METHOD OF EXTRACTING PHENOLIC COMPOUNDS FROM A RESIDUAL PLANT MATERIAL USING A HYDROTHERMAL PROCESS

摘要

The invention relates to a hydrothermal process which is based on bringing the raw residual plant material into contact with hot water in a closed reactor. The inventive process comprises the following steps: a) in a reactor, bringing the material to be treated into contact with water and adjusting the solid/liquid ratio such that it is between 1/5 and 1/15 (p/v); b) stirring the aforementioned mixture; c) heating same to a temperature of between 180 DEG and 240 DEG C and at a pressure such that the water remains in the liquid phase; d) stirring the mixture for a period of between 4 and 30 minutes; and e) cooling the reactor to approximately 40 DEG C, unloading the mixture and recovering the liquid fraction.