| 摘要 |
1384309 Fermented beverages VOGELBUSCH GmbH 2 June 1972 [2 June 1971] 25847/72 Heading C6E Wort is fermented aerobically such that 0À5- 5À0 kg O 2 /kg fermentable carbohydrate are provided, so that substantially all fermentable carbohydrate is assimilated by the yeast with the formation of virtually no alcohol, then the yeast is removed and the liquid sedimented, centrifuged. filtered, cold hopped, carbonated diluted, provided with a head and/or has alcohol added. Preferably the ratio fermentable: non- fermentable extract ingredients in the wort is from 1 : 0À1 to 1 : 10, and the wort preferably has assimilable N 2 and P 2 O 5 contents of 0À025- 0À5 kg and 0À01-0À02 kg respectively per kg of fermentable carbohydrates. During fermentation the temperature is preferably 5-35‹C the pH 4-6, and any foam formed is mechanically destroyed. The fermentation may be carried out as a feed process, nutrient or air feed being regulated in response to alcohol content of the wort or exhaust air. This may be a batch process. nutrient solution being supplied at up to 72 degrees Plato, or a continuous process, nutrient being supplied at up to 40 degrees Plato. The preferred yeasts are of the genus Saccharomyces. |
