Abstract: The invention concerns a method for obtaining a highly enriched TGF-beta protein fraction in activated form, from a liquid solution rich in proteins said to be soluble in the aqueous phase of milk and/or of whey, said method comprising the following steps; a) adjusting soluble proteins purified at a concentration between 5 and 30 g/liter of solution; b) precipitating part of the whey proteins by acidic treatment of the solution thus obtained to a pH ranging between 4 and 5.5 and at a temperature ranging between 55° C. and 68° C.; c) carrying out a microfiltration of the treated solution by diafiltration, so as to obtain respectively a microfiltration retentate and a microfiltrate; d) recuperating the microfiltration retentate containing the protein fraction highly enriched in TGF-beta; e) drying the microfiltration retentate which has been subjected to diafiltration to obtain a powder highly enriched in TGF-beta.

Abstract: The invention concerns a method for obtaining a highly enriched TGF-beta protein fraction in activated form, from a liquid solution rich in proteins said to be soluble in the aqueous phase of milk and/or of whey, said method comprising the following steps; a) adjusting soluble proteins purified at a concentration between 5 and 30 g/liter of solution; b) precipitating part of the whey proteins by acidic treatment of the solution thus obtained to a pH ranging between 4 and 5.5 and at a temperature ranging between 55° C. and 68° C.; c) carrying out a microfiltration of the treated solution by diafiltration, so as to obtain respectively a microfiltration retentate and a microfiltrate; d) recuperating the microfiltration retentate containing the protein fraction highly enriched in TGF-beta; e) drying the microfiltration retentate which has been subjected to diafiltration to obtain a powder highly enriched in TGF-beta.

Abstract: An installation (1) for the treatment of products comprises: containers (2) for products to be treated and equipped with elements (14) for emitting radiofrequency waves, at least one workstation (5–7) for carrying out a product treatment operation, the workstation being equipped with elements (25–27) for emitting radiofrequency waves, and a system for managing information relating to the products, the system comprising a database (70), an information processing unit (62) and at least one component (10) which may be adapted to the body or garment of an operator, the component comprising: at least one antenna (50) for receiving the radiofrequency waves, and elements (52, 54, 56) for transmitting, to the information processing unit (62), identification information received from the elements (14, 25–27) for emitting radiofrequency waves.

Abstract: A rotor to be driven in rotation about a central axis of rotation (A) is provided with a number n of seats for receiving a product to be centrifuged, the seats being arranged eccentrically relative to the axis of rotation. The geometric image (I) of at least a first seat, through a geometric rotation about the central axis of rotation (A) in a first direction of rotation and an angle of 360°/n, is different from a second seat which directly follows the first seat in the first direction of rotation.

Abstract: The invention concerns a method for obtaining a highly enriched TGF-beta protein fraction in activated form, from a liquid solution rich in proteins said to be soluble in the aqueous phase of milk and/or of whey, said method comprising the following steps; a) adjusting soluble proteins purified at a concentration between 5 and 30 g/liter of solution; b) precipitating part of the whey proteins by acidic treatment of the solution thus obtained to a pH ranging between 4 and 5.5 and at a temperature ranging between 55° C. and 68° C.; c) carrying out a microfiltration of the treated solution by diafiltration, so as to obtain respectively a microfiltration retentate and a microfiltrate; d) recuperating the microfiltration retentate containing the protein fraction highly enriched in TGF-beta; e) drying the microfiltration retentate which has been subjected to diafiltration to obtain a powder highly enriched in TGF-beta.

Abstract: The invention concerns a method for obtaining a highly enriched TGF-beta protein fraction in activated form, from a liquid solution rich in proteins said to be soluble in the aqueous phase of milk and/or of whey, said method comprising the following steps; a) adjusting soluble proteins purified at a concentration between 5 and 30 g/liter of solution; b) precipitating part of the whey proteins by acidic treatment of the solution thus obtained to a pH ranging between 4 and 5.5 and at a temperature ranging between 55° C. and 68° C.; c) carrying out a microfiltration of the treated solution by diafiltration, so as to obtain respectively a microfiltration retentate and a microfiltrate; d) recuperating the microfiltration retentate containing the protein fraction highly enriched in TGF-beta; e) drying the microfiltration retentate which has been subjected to diafiltration to obtain a powder highly enriched in TGF-beta.

Abstract: This enclosure comprises a body which itself comprises: a structure which internally delimits a processing space which opens at the outer side of the structure by way of an opening, at least one framework element which is fixed in a removable manner to the structure in order to delimit, in the opening (13), at least two zones for access to separate regions of the processing space. At least two gates are mounted so as to be movable on the structure in order selectively to close and open the access zones. Application, for example, to CO2 incubators.

Abstract: For automated centrifugation of samples contained in test tubes, a centrifuge (c) has a rotating head (11) with swing-out buckets (30) for housing the test tubes. Apparatus is provided for automatically positioning each bucket in the centrifugation chamber under a safety lid and to lift each bucket out of the centrifugation chamber. Magnetic devices are provided to retain a cover on its bucket and a magnetic system is provided for removing the cover of each bucket in order to expose the test cubes to a robotic arm or similar device.

Abstract: This installation comprises: for each receptacle of substance to be treated, radio-wave transmitter means for supplying information identifying the substance contained in the receptacle; for each workstation for implementing a treatment operation on the substances, radio-wave receiver means for supply information identifying the workstation; and for each receptacle support, both radio-wave receiver means for receiving information transmitted by the transmitter means of the receptacles and of the workstations, and at least one forwarding device for forwarding information received by the receiver means to a data storage unit. The installation is applicable to processing biological samples or materials.

Abstract: A work enclosure, and in particular a system for low temperature storage that includes a chest provided with a refrigerator unit. The chest has a top plate provided with a plurality of openings each suitable for allowing a support for at least one container of an article for storage to be passed therethrough, the support presenting a working storage height no greater than the height of the chest, and the top of the support is provided with an element of shape matching the shape of the opening so as to close it once the support has been fully inserted through the opening. In some embodiments, automation elements are provided above the top plate of the chest for moving the supports at least in vertical translation so as to enable supports to be inserted and withdrawn via the openings of the chest.

Abstract: This assembly includes a system for communicating information by radiofrequency waves having at least one element for transmitting or receiving radiofrequency waves which is associated with the cabinet and at least one element for transmitting or receiving radiofrequency waves which is carried by an implement for receiving products so as to determine whether the receiving implement is inserted into the cabinet or is extracted therefrom. The cabinet constitutes a first element and the receiving implement a second element. The communication system includes at least two elements of transmission or of reception, associated with one of the elements and spaced along a direction (D) intended to coincide with the direction of insertion (S), so as to communicate with at least one element for transmitting or receiving radiofrequency waves which is associated with the other of the elements, in an order representative of the insertion or extraction of the implement from the cabinet.

Abstract: A working enclosure includes a working chamber whose walls delimit a confinement space for working in and an exterior branch loop for recycling the atmosphere of the confinement space. The branch loop opens at each end into the confinement space and includes means for circulating the atmosphere in the branch loop. The working enclosure includes filter members at each end of the branch loop.

Abstract: This device for monitoring the speed of rotation of an electric motor (10) comprises a unit (16) for controlling the speed of rotation of the motor and a speed limitation unit (14) linked to the control unit (16) and including a processor (24) for comparing between at least one monitoring signal (S′; UPWM) representative of the speed of rotation of the motor imposed on the latter by the control unit (16) and a threshold value (VMAX) corresponding to the maximum value at which the motor (10) is permitted to operate, and a disconnection unit for at least temporarily disconnecting the motor (10) from its supply should the threshold value be exceeded. Prior to each startup of the motor (10), the control unit (16) carries out a phase of testing the correct operation of the speed limitation unit (14) by generating a monitoring signal (S′) corresponding to a speed of rotation value greater than the threshold value.

Abstract: This assembly comprises a system for communicating information by radiofrequency waves (6) comprising at least one means (10, 11) for transmitting and/or receiving radiofrequency waves which is associated with the cabinet and at least one means (7) for transmitting and/or receiving radiofrequency waves which is carried by an implement (5) for receiving products so as to determine whether the receiving implement (5) is inserted into the cabinet or is extracted therefrom. The cabinet constitutes a first element and the receiving implement a second element.

Abstract: This installation comprises:

Abstract: This centrifuge comprises a rotor, with at least one housing to hold a product for centrifuging and an associated lid to close the housing, the centrifuge also comprising a motor on which the rotor is mounted to rotate about an axis of rotation. It also comprises a mechanism for checking for the presence, on each housing, of the associated lid in order to prevent the execution of a cycle of centrifugation if the lid of a housing is absent.

Abstract: This centrifuge includes a chamber (5), a rotor (6) arranged therein, a device (8) for driving the rotation of the rotor, and a device (11) for cooling the atmosphere of the chamber. The device for cooling the atmosphere of the chamber includes a Ranque vortex tube (30), a cold outlet (33) which is connected to one inlet (66) of the chamber. The centrifuge includes a pressurized-gas supply circuit which is connected to an inlet (32) of the Ranque vortex tube and which is intended to be connected to a source (49) of pressurized gas. Application is to the centrifuging of biological products.

Abstract: This centrifuge includes a chamber (5), a rotor (6) arranged therein, and a device (8) for driving the rotation of the rotor. The device (8) for driving the rotation of the rotor is a pneumatic drive device. The centrifuge includes a circuit for supplying the pneumatic drive device with pressurized gas intended to be connected to a source (49) of pressurized gas. The centrifuge further includes a gas-purification unit (10), one inlet of this unit being connected to an outlet (64) for drawing gas from the chamber and one outlet of this unit being connected to a suction device (21) controlled by the pressurized gas supplied to the pneumatic device (8) for driving the rotor. Application is to the centrifuging of products liable to release dangerous substances, for example toxic or explosive substances.

Abstract: A device for determining the resistive torque of an item of equipment driven by an asynchronous electric motor operated by a control unit delivering to the motor an alternating voltage for controlling the rotational speed of the motor includes a measuring unit for measuring the rotational speed, a calculator for calculating the motor slip from the said rotational speed and the synchronous speed of the magnetic field generated by the power-supply voltage and a comparator for comparing the calculated value of slip and a set of predetermined slip values each corresponding to a resistive torque value, so that the resistive torque of the item of equipment can be determined.

Abstract: A centrifuge including a drive head attached to a rotation shaft and a rotor adapted to be removably mounted on the drive head in a rotational driving position and which is coupled thereto during rotation of the drive head. The centrifuge includes elements for axially locking the rotor to the drive head by applying to the rotor an axial retaining force that increases with the rotational speed of the drive head.