Patent ID: 6815204
Filing Date: 2004-11-09
Classification: C12M

Abstract:
A method of improving the yield of a biological reactor comprising at least one annular biological reaction chamber (10) defined by two coaxial cylindrical walls (11, 12), at least one of which (11) is an exchange wall allowing gaseous or liquid matter to be transferred or allowing light to pass, and in which there flows axially a liquid reaction medium (14) containing a culture of microorganisms or of isolated cells of vegetable or animal microorganisms in suspension, in which method the culture is subjected to a biosynthesis reaction activated by the matter or the light passing through said exchange wall (11),the method being characterized by the fact that the reaction medium (14) flowing in said biological reaction chamber (10) is subjected to a primary turbulent flow (19) that is helical about the axis (17) of the chamber (10), which flow under the action of centrifugal force generates rotary secondary vortices (20), thereby encouraging the culture to be renewed in the vicinity of the exchange wall (11).