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公开(公告)号：US4996317A
公开(公告)日：1991-02-26
申请号：US229369
申请日：1988-08-05
IPC分类号： A23F5/20 , C07D473/12
CPC分类号： A23F5/206 , C07D473/12 , Y02P20/544
摘要： A process and apparatus for caffeine recovery from supercritical carbon dioxide is disclosed. The process involves countercurrent extraction of caffeine from supercritical carbon dioxide with water at pressures in excess of 1,000 p.s.i. in an unpacked extraction column. The apparatus includes an unpacked extraction vessel having a distributor therein for distributing water throughout substantially the entire cross-sectional area of the vessel.
摘要翻译： 公开了一种从超临界二氧化碳中回收咖啡因的方法和装置。 该方法包括从超临界二氧化碳与超过1000 p.s.i的压力的水逆流提取咖啡因。 在未包装的萃取柱中。 该设备包括未包装的提取容器，其具有分配器，用于在整个容器的整个横截面区域内分配水分。
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公开(公告)号：US4911941A
公开(公告)日：1990-03-27
申请号：US229380
申请日：1988-08-05
申请人： Saul N. Katz , Jean E. Spence , Michael J. O'Brien , Ronald H. Skiff , Gerald J. Vogel , Ravi Prasad
发明人： Saul N. Katz , Jean E. Spence , Michael J. O'Brien , Ronald H. Skiff , Gerald J. Vogel , Ravi Prasad
IPC分类号： A23F5/20
CPC分类号： A23F5/206
摘要： A method of continuously decaffeinating moistened, green coffee solids with supercritical carbon dioxide. Moistened, green coffee beans are moved periodically through an extraction vessel and contacted with continuously flowing supercritical carbon dioxide which extracts caffeine from the moist, green coffee beans. Caffeine is removed from the supercritical carbon dioxide by counter-current contact with wash water in an open vessel. The caffeine-depleted supercritical carbon dioxide is recirculated back to the extraction vessel and the caffeine-bearing wash water is subjected to concentration by reverse osmosis. Acidic, substantially caffeine-free permeate is directed back to the extraction system as wash water, or to moisturize the green coffee beans prior to extraction, or both.
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3.发明授权Method for decaffeinating coffee materials including a reverse osmosis permeate recycle 失效消除咖啡因的方法，包括反渗透渗透物循环
公开(公告)号：US5266342A
公开(公告)日：1993-11-30
申请号：US532160
申请日：1990-06-01
申请人： Jean E. Spence , Saul N. Katz , Gerald J. Vogel , Ravi Prasad
发明人： Jean E. Spence , Saul N. Katz , Gerald J. Vogel , Ravi Prasad
CPC分类号： A23F5/206
摘要： An improved method for extracting caffeine from a coffee material, preferably raw coffee solids, with an extractant comprising supercritical carbon dioxide. Caffeine is continuously absorbed from the extractant with an aqueous wash solution in an absorber. This wash solution is continuously treated by reverse osmosis to form a caffeine-containing retentate stream and a permeate stream containing dissolved solids but substantially no caffeine. The permeate stream is recycled and used as wash water in the absorber or is used to prehydrate solid coffee materials, or both. The permeate stream comprises acidic dissolved solids.
摘要翻译： 一种用于从咖啡材料，优选生咖啡固体中提取咖啡因的提取方法，其中提取物包含超临界二氧化碳。 咖啡因在吸收器中用清水溶液从萃取剂中持续吸收。 该洗涤溶液通过反渗透连续处理以形成含咖啡因的滞留物流和含有溶解的固体但基本上不含咖啡因的渗透物流。 渗透物流被再循环并用作吸收器中的洗涤水，或用于预固化固体咖啡物质，或两者。 渗透物流包含酸性溶解固体。
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公开(公告)号：US4571339A
公开(公告)日：1986-02-18
申请号：US699362
申请日：1985-02-07
申请人： Saul N. Katz , Gerald J. Vogel
发明人： Saul N. Katz , Gerald J. Vogel
摘要： This invention relates to the use of a salt and/or a mild caustic in solution to increase the relative volatility of aromatics contained in an aqueous stream. The increased relative volatility so achieved enables more efficient concentration of the aromas via distillation. The pH of the aroma-containing aqueous stream does not exceed 7.0 through the addition of the salt or caustic to prevent aroma degradation.
摘要翻译： 本发明涉及在溶液中使用盐和/或温和的苛性碱以提高含水流中芳族化合物的相对挥发性。 如此实现的增加的相对挥发性能够通过蒸馏更有效地浓缩香气。 通过加入盐或苛性碱，含香料的含水流的pH不超过7.0，以防止香味降解。
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公开(公告)号：US4707368A
公开(公告)日：1987-11-17
申请号：US802792
申请日：1985-11-27
摘要： This invention relates to an improved process for steaming and later extracting roasted and ground coffee and the product of such process. The process comprises vacuum steaming roasted and ground coffee in a percolator at a temperature less than 200.degree. F. at a pressure of from 10" to 27"(Hg) and recovering the steam aroma produced by passing same through a wedge-wire draw-off apparatus, the draw-off apparatus comprising a helically wound wire assemblage being internal to the percolator. Thereafter the coffee is percolated to extract solids therefrom and the extract and aroma are combined and dehydrated to form a soluble coffee product.
摘要翻译： 本发明涉及一种用于蒸煮和稍后提取焙炒和研磨咖啡的改进方法以及这种方法的产物。 该方法包括在温度低于200°F的温度下，在10“至27”（Hg）的压力下，在渗滤器中真空蒸煮焙炒和研磨的咖啡，并回收通过楔形丝 抽出装置，该抽出装置包括在渗滤器内部的螺旋缠绕的线组合件。 此后，将咖啡渗滤以从其中提取固体，并将提取物和香料组合并脱水以形成可溶性咖啡产品。
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公开(公告)号：US4409254A
公开(公告)日：1983-10-11
申请号：US191568
申请日：1980-09-29
申请人： Torunn A. Garin , Gerald J. Vogel
发明人： Torunn A. Garin , Gerald J. Vogel
CPC分类号： C09B61/00 , C09B67/0096
摘要： A process is disclosed for isolating and concentrating a natural colorant of bland taste found in plants containing betanin. The process involves adjusting the pH of an aqueous extract of the betanin-containing plant to the isoelectric point of betanin, contacting the pH-adjusted extract with a non-ionic adsorbent to concentrate the betanin pigment on the adsorbent, eluting the adsorbent to remove the betanin pigment, and separating the pigment from the eluting agent.
摘要翻译： 公开了一种用于分离和浓缩在含有甜菜碱的植物中发现的平淡味道的天然着色剂的方法。 该方法包括将含甜菜碱植物的含水提取物的pH调节至甜菜碱的等电点，将pH调节的提取物与非离子吸附剂接触以将甜菜碱颜料浓缩在吸附剂上，洗脱吸附剂以除去 甜菜碱颜料，并将颜料与洗脱剂分离。
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