摘要:
The invention relates to improved processes of producing ethanol from starch-containing material wherein saccharification and/or fermentation is done at a temperature below the initial gelatinization temperature in the presence of glucoamylase and alpha-amylase, and optionally a protease and/or a cellulolytic enzyme composition; wherein the fermenting organism is Saccharomyces cerevisiae MBG4851 (deposited under Accession No. V14/004037 at National Measurement Institute, Victoria, Australia) or a fermenting organism strain having properties that are about the same as that of Saccharomyces cerevisiae MBG4851, or a derivative of Saccharomyces strain V14/004037 having defining characteristics of strain V14/004037, and compositions comprising a Saccharomyces yeast strain of the invention and naturally occurring and/or non-naturally occurring components.
摘要:
A method including bringing a grain raw material liquid into contact with a yeast to effectively improve foam properties of a sparkling beverage, a grain raw material liquid, and a sparkling beverage are provided. The method includes bringing a first grain raw material liquid into contact with a yeast to produce a second grain raw material liquid to be used for production of a sparkling beverage. The yeast may be an inactivated yeast. The method may further include producing the sparkling beverage using the second grain raw material liquid.
摘要:
The invention relates to a cell immobilising carrier, which can be used in a novel continuous fermentation process. More particularly, this fermentation process is used in the continuous production of beer. The immobilising carrier comprises a porous medium of fibers. The medium has a porosity of at least 70%.
摘要:
A polysaccharide gel enclosing microorganisms is soaked in a solution of a high concentration such as at least 500 g/l of hydrophilic substance and the gel is at least partially dehydrated to provide improved viability of the microorganisms after storage and rehydration of the gel. The dehydration may be carried out in a fluidized bed or by lyophilization. The gel may be in the form of beads or fibers having a double layer structure formed by an internal layer or core of gel containing the microorganisms and an external layer or envelope of gel essentially devoid of the microorganisms. The hydrophilic substance can be a low molecular weight polyol such as glycerol or a sugar such as sucrose, glucose or frutose. The microorganisms in the gel are preferably yeasts and after rehydration the yeast-containing gel is used in the secondary fermentation of wine to produce sparkling wine or champagne.
摘要:
A hybrid continuous fermentation system and related process for fermenting sugars to produce alcohol containing liquors. The system includes a fermentor arranged with a packed bed region and a fluidized bed region. A yeast bed is retained in the packed bed region using a retention matrix and flocculation. A sugar supply is directed through the yeast bed with sufficient dwell time for satisfactory sugar conversion. The fluidized bed region is arranged to allow fermented product to pass through the fermentor while allowing yeast cell growth and retention. A nutrient may be added to the fermentor to aid in yeast flocculation. The fermentor is sized and shaped to allow sufficient dwell time of the sugar supply in the packed bed region and in the fluidized bed region to maximize sugar conversion to ethanol by fermentation.
摘要:
The invention concerns a preparation of micro-organisms immobilised in beads acclimated to alcohol and/or acidity, and partly dried, capable of developing a fermenting activity when they are introduced in alcohol or acid musts. The invention also concerns a method for obtaining such a preparation comprising an acclimating step and an immobilising step for the micro-organisms, said steps being carried out in any sequence, but necessarily preceding a partial dehydrating step. The invention provides the advantages on enabling the micro-organisms to be preserved in viable and active form for several months, and to be used directly for reactivating interrupted fermenting processes, in particular alcoholic fermentation processes, for producing wine and other fermented beverages.
摘要:
A continuous process of producing beer is described. Starch-containing raw materials are disintegrated and are optionally processed to form malt, a wort is produced from the disintegrated and optionally malted raw materials, and the wort is subjected to alcoholic fermentation. In that process all process steps are performed continuously. The mash is initially heated in a reactor system to a temperature of 75.degree. to 85.degree. C. The grain residue is removed from the mash. The wort is subsequently hopped and is heated to a temperature from 105.degree. to 140.degree. C. This is succeeded by a flash evaporation, a removal of the dregs and a cooling of the wort, which is subsequently fermented at 6.degree. to 25.degree. in the presence of a biocatalyst. The fermenting process may be succeeded by a partial or full continuous de-alcoholization of the beer.
摘要:
According to the invention, yeast cells are immobilized on a substantially noncompressible carrier having anion exchange properties. The immobilized yeast can then be used to ferment a sugar-containing substrate. The noncompressibility enables the system to be sterilized and to operate under pressure. A preferred example of the carrier is granular DEAE cellulose.
摘要:
A method for the accelerated brewing of alcohol and alcoholic beverages including beer, wine, and spirits utilizing flavor producing strains of S. cerevisiae and/or other bacteria such as lactobacillus spp. and a high alcohol-tolerant strain of S. cerevisiae. Preferred strains of S. cerevisiae for the production of beer are ATCC Nos. 20866 and 20867.In the preferred method, the fermentation is conducted in a bioreactor containing the flavor-producing strains and the high alcohol tolerant strain of S. cerevisiae immobilized on inert, high surface area supports, preferably porous organic or glass beads. The bioreactor significantly decreases the fermentation time necessary to produce a beverage containing a desired alcohol percentage. For example, beer can be processed in less than about 12 to 18 hours, wine in less than about 36 hours.
摘要:
A process and apparatus has been provided for accelerated fermentation of fermentable liquids, such as beer wort. Accordingly, an enzyme carrier dispersion such as yeast is deposited either before or concurrently with the fermented liquid in a layer on a porous body which has pores sized to pass the liquid but not the enzyme carrier. As a result of the capability to support considerable amount of the enzyme carrier on the porous support, fast fermentation rates are achieved. Moreover, the enzyme carrier may be deposited on an inert material and then deposited on the porous support which allows easy metering of the necessary amount of enzyme for facile control of the fermentation reaction. An apparatus has also been provided which comprises at least one chamber having an inlet conduit for introducing an enzyme carrier dispersion and the liquid, the chamber being provided with communicating conduits with a next, adjacent chamber. Further, closing means are provided for the apparatus communicating with each chamber for alternatively closing said inlet conduits, as well as a porous member within the chamber upon which the enzyme carrier is deposited. The porous member has pores of a diameter less than the diameter of particle sizes in said enzyme dispersion. Still further, the apparatus is provided with a conduit for collecting the fermented liquid communicating with the last chamber, the porous body having communicating conduits with each chamber wherein the porous body forms the outlet opening of the preceding chamber and the inlet opening for the adjacent chamber.