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5 条记录 (耗时 0.017 秒)

    Process for the preparation of soluble coffee
    2.
    发明授权
    Process for the preparation of soluble coffee 失效

    公开(公告)号：US5225223A

    公开(公告)日：1993-07-06

    申请号：US801314

    申请日：1991-12-02

    申请人： Otto G. Vitzthum ,  Klaus D. Koch

    发明人： Otto G. Vitzthum ,  Klaus D. Koch

    IPC分类号： A23F5/18 ,  A23F5/24 ,  A23F5/26 ,  A23F5/28 ,  A23F5/48 ,  A23F5/50

    CPC分类号： A23F5/18 ,  A23F5/262 ,  A23F5/486

    摘要： The invention relates to a process for preparing soluble coffee with an infusion quality similar to that of roast bean coffee, with which instant-typical off-flavour characters are no longer detectable, with which ground roast coffee of a particle size of at most approximately 1.8 mm is treated in a percolator with saturated steam in order to separate essential aroma constituents and the separated aroma constituents obtained as condensate, the remaining roast coffee is subjected at high pressure with extraction water to a primary extraction with the aid of at least 2 percolators, the portion evaporated through pressure-relief is condensed and obtained as further aroma condensate, and the non-evaporated portion placed in interim storage as primary extract, the remaining roast coffee is then subjected at high pressure and increased temperature to a secondary extraction in at least 2 percolators, the portion of the extract evaporated through pressure-relief is separated and discarded, and the non-evaporated portion obtained as secondary portion and optionally divided into a first portion and a second portion, the remaining roast coffee optionally subjected to a tertiary extraction at high pressure and increased temperatures in at least 2 percolators, the portion evaporated through pressure-relief is discarded and the non-evaporated portion obtained as tertiary extract, the second portion of the secondary extract and the tertiary extract, optionally after being combined, optionally extracted with liquid or supercritical CO.sub.2 at a high pressure, the extracted portion discarded and the remaining extract obtained, the various extracts condensed in multi-stage evaporators, combined and mixed with the two aroma condensates, and the finally obtained extract with a solids concentration of approximately 35 to 55% freeze- or spray-dried in the usual way, the percolators used having a length/diameter ratio of approximately 3.2:1 to 0.9:1.

    Stabilization of liquid coffee by treatment with alkali
    3.
    发明授权
    Stabilization of liquid coffee by treatment with alkali 失效
    用碱处理液态咖啡的稳定化

    公开(公告)号：US6054162A

    公开(公告)日：2000-04-25

    申请号：US795855

    申请日：1997-02-05

    申请人： Allan G. W. Bradbury ,  Hartmut H. Balzer ,  Otto G. Vitzthum

    发明人： Allan G. W. Bradbury ,  Hartmut H. Balzer ,  Otto G. Vitzthum

    IPC分类号： A23F5/18 ,  A23F5/24 ,  A23F5/00

    CPC分类号： A23F5/243 ,  A23F5/18

    摘要： The present invention is directed to a liquid coffee in which the development of acidity has been inhibited and which results in a longer shelf-stable product. The method used in making the liquid coffee product of the present invention includes treating the coffee extract with an alkali, the alkali being present in an amount effective to convert acid precursors present in the coffee extract to their respective acid salts, and thereafter neutralizing the treated coffee extract with an acid, the acid being present in an amount effective to neutralize any excess alkali from the first step and to adjust the final pH of the liquid coffee product to the desired value.

    摘要翻译： 本发明涉及一种液态咖啡，其中酸性的发展被抑制并且导致更长的货架稳定的产品。 用于制备本发明的液体咖啡产品的方法包括用碱处理咖啡提取物，碱以有效将咖啡提取物中存在的酸前体转化成其各自的酸盐的量存在，然后中和所处理的 具有酸的咖啡提取物，酸以有效中和来自第一步的任何多余的碱的量存在并且将液体咖啡产品的最终pH调节至所需值。

    Metering device for powdered material
    5.
    发明授权
    Metering device for powdered material 失效
    粉末材料计量装置

    公开(公告)号：US4703874A

    公开(公告)日：1987-11-03

    申请号：US853535

    申请日：1986-04-18

    申请人： Henry Tapperman ,  Otto G. Vitzthum ,  Heinrich Seekamp

    发明人： Henry Tapperman ,  Otto G. Vitzthum ,  Heinrich Seekamp

    IPC分类号： G01F11/46 ,  B65G69/06

    CPC分类号： G01F11/46

    摘要： The metering device for powdered material comprises a storage container (10) for the powdered material and a discharge opening in the bottom of the storage container which is opened and closed, respectively, by a closing mechanism (12). The powdered material flows through the discharge opening into a drawing cup (13). In order to obtain a defined bulk density of the powdered material in the drawing cup (13), a vibration mechanism (14) imparts vibrations to the metering device when the discharge opening (11) is open. The closing mechanism (12) can be designed in the manner of a blade diaphragm, and in that case the closing mechanism (12) can be actuated by a grooved disk (17) which at the same time is a part of the vibration mechanism (14). The vibration mechanism (14) can also include a base disk (20) urging spring-biased elements (19) against a toothed ring (18) so that said elements (19) slide over the toothed ring (18), when the grooved disk (17) is rotated relative to the base disk (20), to produce vibration.

    摘要翻译： 用于粉末材料的计量装置包括用于粉末材料的储存容器（10）和储存容器底部的排放口，分别由关闭机构（12）打开和关闭。 粉状材料通过排出口流入拉丝杯（13）。 为了在拉拔杯（13）中获得粉末材料的确定的体积密度，当排出口（11）打开时，振动机构（14）向计量装置施加振动。 闭合机构（12）可以以叶片隔膜的方式设计，并且在这种情况下，闭合机构（12）可以由同时作为振动机构的一部分的开槽盘（17）致动 14）。 振动机构（14）还可以包括基盘（20），该基盘（20）将弹簧偏置元件（19）推压在齿环（18）上，使得所述元件（19）在有齿环（18）上滑动时， （17）相对于基盘（20）旋转以产生振动。