Abstract:
Filtration systems in which the ratios of minor components in mixtures can be balanced, and associated methods, are generally described. Certain embodiments are related to methods in which a portion of a retentate stream produced by filtering an initial liquid feed during a first filtration step is mixed with the permeate produced by filtering the permeate from the first filtration step. In some cases, the amount of the first retentate that is mixed with the second permeate is selected such that the ratios of the minor components within the final retentate and permeate streams produced by the filtration system are similar to the ratio of the minor components within the initial liquid. By maintaining similar ratios of minor components, according to certain embodiments, the flavor profile of the initial liquid mixture can be substantially maintained in the concentrated and diluted streams produced by the filtration system.
Abstract:
Flow control in multi-step filtration systems and associated methods are generally described. Certain embodiments are related to methods in which a single filter is used to perform multiple, separate filtration steps. In some cases, a diluted permeate from a first filtration step can be recycled back through the filter, as part of a separate filtration step, to produce a second retentate and a second permeate. Subsequent filtration steps can also be performed. Systems configured to perform multiple, separate filtration steps using a single filter are also described.
Abstract:
Verfahren zur Herstellung eines entalkoholisierten Getränks (60) aus seinem alkoholhaltigen Getränke-Ausgangsprodukt (10) und Anlage zur Durchführung desselben, wobei das Verfahren folgende Schritte umfasst: Auftrennung des Getränke-Ausgangsprodukt (10) in ein alkoholhaltiges und aromahaltiges Permeat (24) und in ein aromahaltiges und nahezu alkoholfreies Retentat (22) in einem Permeationsmodul (2) mittels nicht-thermischer Permeation (A), Entalkoholisierung (C) des Permeats (24) in einem dazu vorgesehenen Modul (4) und Ausmischung (D) des entalkoholisierten Permeats mit dem nahezu alkoholfreien Retentat (22) in einem Ausmischungsmodul (5). Dem aromahaltigen und alkoholhaltigen Permeat (24) werden vor der Entalkoholisierung (C) Aromastoffe in einem Aromenadsorber (3) mittels einer Kalt-Adsorption (B) entzogen, so dass einerseits eine Aromaphase (36) resultiert und andererseits ein aromafreies aber alkoholhaltiges Permeat (24'), welches aber mittels einer Alkoholabscheidung (C) der Alkohol entzogen wird, so dass eine wässrige, weitgehend entaromatisierte und entalkoholisierte Permeat-Wasserphase (24'') resultiert. Aromaphase (36), Permeat-Wasserphase (24'') und Retentat (22) werden im Ausmischungsmodul zu einem entalkoholisierten Getränk (60) ausgemischt.
Abstract:
A fermentation apparatus for preserving the aroma of a fermentable beverage is provided. The fermentation apparatus comprises a flow passage fluidly connectable to the headspace located above a fermentable beverage in a fermentation container. A carbon dioxide scrubber in the flow passage receives a headspace fluid mixture comprising at least carbon dioxide gas and an aromatic fluid originating from the fermenting beverage. When the headspace fluid mixture contacts the carbon dioxide scrubber, the carbon dioxide retains a modified fluid in the flow passage. The modified fluid has a lower carbon dioxide gas concentration and a higher aromatic fluid concentration than the headspace fluid mixture. The flow passage directs the modified fluid back to the headspace to at least partially retain the aromatic fluid in the fermentable beverage in the fermentation container. A method for preserving the aroma of a fermentable beverage is also provided.
Abstract:
Vorliegende Erfindung betrifft eine passive Verdünnungseinheit (10), die einen Durchflusskanal (5) für Brennstoff aufweist, wobei der Durchflusskanal (5) zumindest ein Fenster hat, in dem eine mit einem Katalysator (4) versehene Membran (3) angebracht ist. Durch diffusive Prozesse kann z.B. Luftsauerstoff durch die Membran zum Kraftstoffstrom vordringen (6) und durch den Katalysator vermittelte oxidative Prozesse eine Reaktion bedingen, bei der der Brennstoff zu Wasser oxidiert wird. Das dabei entstehende Wasser wird direkt im Kraftstoffstrom einbehalten und verdünnt dabei direkt den Kraftstoff. Entstehendes CO2 wiederum kann durch die Membran (3) aus dem Kraftstoffstrom entweichen (7).
Abstract:
A method of reducing the ethanol content of a beverage which includes ethanol and volatile components: separating the beverage into first and second streams, the first stream including ethanol and the volatile components and the second stream including ethanol but none or little of the volatile components; contacting the second stream with a strip solution to produce a treated second stream to reduce the ethanol concentration thereof; and mixing the treated second stream with the first stream whereby the ethanol content of the beverage is reduced but the volatile components remain substantially unchanged.
Abstract:
The present invention relates to a method of processing a wort stream used in the production of a beer, using at least one reverse osmosis membrane or nano filtration membrane as a filter stage, and at least one treatment stage wherein the method is characterised by the steps of: a) transferring the wort stream into contact with the filter stage, and b) passing water from the wort out of the filter stage as a permeate and retaining required components of the wort in contact with the filter stage as a retentate, and c) transferring the retained components of the wort stream to a treatment stage once carbohydrates in the wort have reached a set concentration level. A method for screening the wort to remove waste products using a screening stage before the wort reaches the filtering stage is also disclosed. The present invention provides a method and apparatus for removing the traditional requirement of the kettle and a whirlpool in the production of wort to be fermented into beer.
Abstract:
A method for preparing an aromatic beverage, the method comprising the steps of: a) Subjecting a fermented beverage (1) to a first filtration step comprising nanofiltration (A) or ultrafiltration to obtain a retentate fraction (2) and a permeate fraction comprising alcohol and volatile flavour components (3); b) Subjecting the permeate fraction comprising alcohol and volatile flavour components to a second filtration step comprising reverse osmosis, to obtain a base liquid comprising at least 2% ABV; c) Combining the base liquid from b) with exogenous aromas thereby obtaining the aromatic beverage. 2. The method according to claim 1, wherein the fermented beverage is a beer or cider.