Abstract: Dynamic crusher for treading fruit, particularly grapes, with a treading chamber having, when considering the direction of the path followed by the fruit in the crusher, an upstream fruit-introduction opening, a downstream discharge opening for discharging the must that results from the treading, a rotary ejector that allows kinetic energy to be imparted to the fruit introduced into the treading chamber, and allows the fruit to be cast against a fixed fruit-bursting wall, wherein the rotary ejector is mounted such that it can rotate about a vertical axis and a fixed fruit-bursting wall is positioned around the rotary ejector or facing the peripheral edge thereof against which fruit is cast, rotation of which allows the fruit to be cast, under the effect of centrifugal force, against the fixed fruit-bursting wall, causing the fruit to burst. A method for dynamically treading fruit using such a crusher is also disclosed.

Abstract: Dynamic crusher for treading fruit, particularly grapes, with a treading chamber having, when considering the direction of the path followed by the fruit in the crusher, an upstream fruit-introduction opening, a downstream discharge opening for discharging the must that results from the treading, a rotary ejector that allows kinetic energy to be imparted to the fruit introduced into the treading chamber, and allows the fruit to be cast against a fixed fruit-bursting wall, wherein the rotary ejector is mounted such that it can rotate about a vertical axis and a fixed fruit-bursting wall is positioned around the rotary ejector or facing the peripheral edge thereof against which fruit is cast, rotation of which allows the fruit to be cast, under the effect of centrifugal force, against the fixed fruit-bursting wall, causing the fruit to burst. A method for dynamically treading fruit using such a crusher is also disclosed.

Abstract: The present invention relates to a composition for protecting from oxidation a dietary liquid, which contains substances sensitive to oxidation during the shelf-life thereof including a combination of two types of yeast cells: (i) non-viable yeast cells that are capable of rapidly consuming oxygen, and (ii) glutathione-enriched inactivated yeast cells.

Abstract: The invention concerns dry active yeasts useful for rehydration and/or alcoholic fermentation, or rehydrated active yeasts useful for fermentation, or yeasts useful for fermentation, having a sterol content exhibiting at least two conjugated double bonds at the B cycle of at least 900 ?g/g of dry weight. The invention is useful for producing fermented alcoholic beverages.

Abstract: The invention concerns a heating/air conditioning installation for the passenger compartment of a vehicle.It comprises treatment means produced in the form of at least one removable box suitable for being installed underneath the floor of the vehicle and containing an air inlet, an optional evaporator, a heating radiator and at least one air outlet suitable for being connected to distribution vents distributed within the passenger compartment.

Abstract: A process is described for the acidulation of milk which comprises a first acidulation stage in which the milk is contacted with a cationic exchange resin in its acid form until a pH value is obtained which is not less than that at which flocculation of the milk takes place, and a second stage in which acidulation is completed by the addition of an acid. The process is particularly useful in the production of casein.Apparatus for use in the process is also described. In particular, apparatus is described in which the acidulated milk is subsequently coagulated in a coagulator and the whey produced is separated and used to regenerate spent resin from the acidulation stage.

Abstract: Hollow fibre fluid fractionating apparatus in which the hollow fibres are twisted together to form cords which are assembled in a bundle in a fluid fractioning apparatus. The twists in the hollow fibres tend to break up boundary layers around the hollow fibres and improve the fractionating.

Abstract: A gas/liquid heat exchanger is provided which comprises means for circulating gas and/or liquid and a plurality of hollow fibres, adapted to receive said gas or said liquid, said fibres being of polymeric material which is inert with respect to said liquid and are permeable to said liquid. Such a heat exchanger considerably improves the efficiency/volume ratio of the appratus, largely as a result of the liquid which permeates through the fibres vaporizing.

Abstract: A hollow fiber is provided possessing a continuous longitudinally extending channel free from macromolecular material, said fiber consisting essentially of a copolymer of acrylonitrile and an olefinically unsaturated comonomer containing an optionally salified sulphonic acid group, and possessing micropores of average diameter less than about 100 A, between 40% and 80% of walls of the fiber being empty space. This fiber can be prepared by injecting a solution of a copolymer of acrylonitrile and an olefinically unsaturated comonomer containing an optionally salified sulphonic acid group in at least one polar organic solvent into a spinneret with an annular orifice, and immediately coagulating the inside and the outside of the nascent hollow fibre issuing from the spinneret with a coagulating fluid which is selected from:A. a less than saturated aqueous solution of an inorganic salt, said solution optionally containing up to 40% of a miscible polar organic solvent, andB.

Abstract: A unit cell for fluid fractionating apparatus, fractionating apparatus including such cells and methods of making the cells in which a plurality of hollow fibers are arranged linearly in at least one groove formed in a core, the groove or grooves supporting all or part of the hollow fibers and acting as a bed for said fibers, two end walls of hardened glue securing the hollow fibers to one another and at their ends these walls being firmly secured to the core. The core may be for example of channel shaped, H-shaped, cross-shaped or star-shaped cross-section, and the cell may be enclosed in a jacket having at least one fluid inlet and at least one fluid outlet passage. The construction of the cells makes for easy manufacture by winding the fibers or bundling the fibers and placing them in the grooves of the core and securing them in place by the hardened glue end walls.

Abstract: The invention relates to a purification process by which sodium of extremely high purity, more especially with a low calcium content, can be obtained from commercial-grade sodium.The process according to the invention essentially comprises continuously introducing a predetermined quantity of sodium peroxide into a stream of sodium, mixing and subsequently reacting this sodium peroxide with the sodium at a suitable temperature and finally separating the products of the reaction from the sodium by decantation and filtration.The extremely high-purity sodium thus obtained satisfies in particular the requirements of the atomic industry for its use as a heat-carrying fluid in nuclear reactors of the "breeder" type.

Abstract: An assembly of hollow fibers for use in fluid treatment apparatus and apparatus incorporating such assemblies, in which a primary frame is provided with a central window defined by edges at least two of the opposite edges being thinned down to form hollows. A web of hollow fibers is placed in the hollows and is secured in place, and the fibers secured to one another, by a mass of hardened resin material in at least one of the hollows.The assemblies are mounted in a container, through which a first fluid is caused to flow, the fluid passing around the fibers and through the windows before leaving the container. The interiors of the hollow fibers are connected to the exterior of the container so that either fluid permeate flows out of the apparatus via the interiors of the fibers or a second fluid is caused to flow through the interiors of the fibers if some form of fluid exchange is desired.

Abstract: Hollow fiber fluid fractionating apparatus in which the hollow fibers are twisted together to form cords which are assembled in a bundle in a fluid fractioning apparatus. The twists in the hollow fibers tend to break up boundary layers around the hollow fibers and improve the fractionating.

Abstract: Fluid fractionating apparatus and a unit for use therein, the unit being positionable in a jacket having at least one fluid inlet and at least one fluid outlet, the unit including at least one leakproof band wound up in the form of a spiral cylinder, the turns of which are radially spaced from one another. A multiplicity of hollow fibres are wound around the turns of the spiral cylinder and extend therebetween. Two end walls extend perpendicular to the axis of the spiral cylinder, and may be formed of a solidified glue, the walls being located one at each end of the cylinder and firmly fixed to the leakproof band of the hollow fibres, at least some of the fibres crossing right through at least one of the end walls and opening on the side thereof outside the spiral cylinder. An opening, which may be provided with a hollow mandrel extending into the interior of the innermost turn of the spiral, is used for feeding the fluid thereto or removing it therefrom.