There is provided a process for the improvement of the organoleptic properties of must, non-fermented and fermented beverages. The vines are treated before harvesting grapes with a yeast composition to balance sugar and phenolic maturity in the grapes. The grapes are harvested and processed to produce must, non-fermented and fermented beverages having improved organoleptic properties. There is also provided must, non-fermented and fermented beverages having improved organoleptic properties obtained by the process described above.

Bacterial strains are provided that can be isolated from the microflora of lowbush blueberry (Vaccinium angustifolium), and that are capable of increasing the antioxidant content of their growth medium. The bacteria can be used, for example, to increase the antioxidant content of various foodstuffs, as probiotics or as additives to animal feed. Antioxidant-enriched compositions produced by fermentation processes utilising the bacteria are also provided. The antioxidant-enriched compositions can be used in the preparation of cosmetics and nutritional supplements. The antioxidant-enriched compositions also have therapeutic applications.

A fermentation method and system which includes providing juice to be fermented into a container. The juice having a cap that is a collection of solid components of grapes. The cap has a permeable consistency and floats in the juice. The method includes moving a portion of the juice from below the cap upward into contact with the cap.

The invention relates to a method and a system for in-situ monitoring of a biochemical process in a reactor comprising a vessel (5) intended to receive a liquid (7), said system comprising: a measuring device (9) intended to be inserted floating into said vessel 5, said measuring device (9) being instrumented with sensors configured to take measurements relating to the biochemical process at successive instants and to transmit, at said successive instants, observation data representing said measurements; and a control device (11) configured to control the regulation of the biochemical reactor (3) at said successive instants, according to said observation data received from the measuring device (9).

The present invention provides a new wine yeast product in a frozen form. The product is produced in a fermenter, concentrated, cryoprotectants are added. This mixture is then frozen at −50° C. What makes this product unique is that besides the fact that it is frozen, it can be directly added to grape juice as no rehydration is required because the yeast was not dehydrated in the production process.

One embodiment of the present invention is a nested fermentation method for making a beverage, such as an alcoholic or non-alcoholic beer, a wine, or the like, the method comprising the steps of: creating a first solution, wherein creating the first solution comprises fermenting first fermentation ingredients; creating a second solution, wherein creating the second solution comprises removing a first portion of alcohol from the first solution; creating a third solution, wherein creating the third solution comprises removing a first portion of water from the second solution; creating a fourth solution, wherein creating the fourth solution comprises adding second fermentation ingredients to the third solution and fermenting the second fermentation ingredients in the third solution.

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 scrubber 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.

Polypeptides comprising maltose/maltotriose transporters are provided. Additionally, polynucleotides, DNA constructs, and vectors encoding a maltose/maltotriose transporter, or yeast cells harboring such polynucleotides are provided. The yeast cell may be a Saccharomyces eubayanus cell modified to increase the expression or transport activity of a maltose/maltotriose transporter at the plasma membrane of the cell. Further, methods are provided for making a fermentation product by culturing any one of the yeast cells described herein with a fermentable substrate. Finally, methods are provided to select for and isolate maltotriose-utilizing strains of Saccharomyces eubayanus.

The present disclosure provides methods, compositions, apparatuses and kits comprising ALDC enzymes having a better stability and/or activity, and, optionally, the yield of ALDC enzymes which can be recovered from microorganisms is improved. In some embodiments, the present disclosure provides methods, apparatuses, compositions and kits for the use of metal ions to increase stability and/or activity, and which further can be used to recover the enzymes from microorganisms in improved yields.

A process for obtaining clear must from grape berries includes feeding grape berries into a plant, controlled addition of adjuvant and/or clarifying substances to said grape berries while the grape berries are still at least partially intact, centrifuging said grape berries, in such a way as to separate the liquid phase or must from the solid phase with at least one centrifugal separator device, extracting and collecting the solid phase in a respective storage container and settling and/or flotation of the liquid phase or must so that the liquid phase of said must and the solid residue are separated.