Abstract: A pollen harvesting machine having a motorized chassis on which there are mounted heads for harvesting pollen by suction, which heads are connected by a suction circuit to a separation cyclone, which is connected to a suction fan. The separation cyclone is associated with a pollen recovery hopper. Each head comprises an assembly of a suction hood which has a generally frustroconical portion, which widens between an upper opening which is connected to the remainder of the suction circuits of the machine, and a polygonal base.

Abstract: A pollen harvesting machine having a motorized chassis on which there are mounted heads for harvesting pollen by suction and which heads are connected by a suction circuit to a separation cyclone which is in turn connected to a suction fan. The cyclone is associated with a pollen recovery hopper which is constructed to be cooled to freeze the harvested pollen.

Abstract: The present invention relates to a method for preparing raw pollen which is suitable for being used for the preparation of allergen extracts. The method involves instantaneously freezing the pollen immediately after harvesting, optionally followed by drying the frozen pollen by sublimation.

Abstract: The present invention relates to a method for preparing raw pollen which is suitable for being used for the preparation of allergen extracts. The method involves instantaneously freezing the pollen immediately after harvesting, optionally followed by drying the frozen pollen by sublimation.

Abstract: This pollen harvesting machine, of the type comprising a motorised chassis on which there are mounted means which are in the form of a head for harvesting pollen by means of suction and which are connected, via means in the form of a separation cyclone, to means which form a suction fan, the means in the form of a cyclone being associated with means in the form of a pollen recovery hopper, characterised in that the means in the form of a pollen harvesting head comprise an assembly of suction hoods (12) which each have a first generally frustoconical portion (16) which widens between an opening (17) for connection to the remainder of the circuits of the machine and a polygonal base (18).

Abstract: This pollen harvesting machine, of the type comprising a motorised chassis (1) on which there are mounted means (3) which are in the form of a head for harvesting pollen by means of suction and which are connected, via means (7) in the form of a separation cyclone, to means (8) which form a suction fan, the means (7) in the form of a cyclone being associated with means (9) in the form of a pollen recovery hopper, is characterised in that it comprises means for freezing the harvested pollen in the means (9) in the form of a recovery hopper.