Thomas LOETZBEYER,Astrid JAEGER,Rosina WESTERMEIER
申请号：
US15552114
公开号：
US20180020702A1
申请日:
2015.02.20
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An inventive method and a device for the biotechnological reduction of sugar substances in fruit educts for the purpose of obtaining low-sugar fruit products characterized by enzymatic and/or fermentative reaction processes. Said method is characterized by a closed-loop control process, by means of which the pH value in the low-sugar fruit product is adjusted to a predetermined higher value, as compared to the pH value in the fruit educt, in such a waythat during the reduction of the sugar substances by at least 30% by weight to less than 40% by weight, the pH value is increased between 0.6 and 1.0 pH units； orthat during the reduction of the sugar substances by at least 40% by weight to less than 50% by weight, the pH value is increased between 0.7 and 1.1 pH units； orthat during the reduction of the sugar substances by at least 50% by weight to less than 65% by weight, the pH value is increased between 0.8 and 1.2 pH units； orthat during the reduction of the sugar substances by at least 65% by weight to less than 80% by weight, the pH value is increased between 0.9 and 1.3 pH units； orthat during the reduction of the sugar substances by at least 80% by weight, the pH value is increased between 1.0 and 1.4 pH units；wherein the aforementioned pH values may also turn out to be higher or lower by up to 0.1 or up to 0.2 pH units； and/orwherein, in the case of fermentatively formed sugar alcohols having a % by weight fraction of up to 3.0% by weight, the increase in the pH value with the simultaneous reduction of the sugar substances may turn out to be less by up to 0.3 pH units, as compared to a purely enzymatic process, wherein preferably both values correlate to each other, in particular, linearly.The present invention can be used to obtain, in particular, low-sugar fruit products, such as fruit purées or fruit preparations or fruit powder or whole fruit beverages (smoothies) or fruit juices and/or vegetable juices (regardless of whether bottled undiluted as
