Title:
METHOD FOR WET-PROCESSING COFFEE WITH COFFEE JUICE EXTRACTION PRIOR TO DRYING
Document Type and Number:
WIPO Patent Application WO/2012/103607
Kind Code:
A1
Abstract:
A method for wet-processing coffee with coffee juice extraction prior to drying, wherein the mixture of ripe and unripe coffee cherries is fed by gravity into a depulper which bursts and expels the ripe coffee cherries, while unripe coffee cherries are eliminated from the base thereof without being burst. The burst coffee cherries (pulp with parchment skin or separated from same) are pumped by a must pump or bucket elevators or Archimedes screw lift. The coffee cherries (pulp with parchment skin or separated from same) are added at room temperature to reactors in the shape of cylindrical or conical tanks having a stirrer, and calcium hydroxide (hydrated cal) is added to said reactor until a pH of 6.5-7.5 is reached and/or any other bases or calcium or magnesium salts and/or pectinase are added in a ratio of 100 to 300 grams per 100 kg of coffee cherries, and also 50 ppm potassium or sodium metabisulfite with 15 to 60 minutes stirring at this temperature. Following this pretreatment, the burst coffee (pulp with parchment skin or separated from same) may follow one of two paths: In path 1, the coffee is led to a vertical presser or centrifuge or depulper, wherein coffee juice is separated containing 11-20% soluble solids in a volume ranging from 20% to 40% of the original weight; the pressed or centrifuged or depulped product is led to drying terraces where it is dried to 10-11% homogenous final moisture. Following path 2, the coffee is led to a machine that separates the coffee parchment skin from the pulp, said pulp then being pressed or centrifuged or depulped, resulting in coffee juice. The juice is led from the presser to a continuous decanter which separates a clear juice from a sludge, or to a centrifuge with the same objective, that is, to separate a clear juice from a sludge. The clear juice is concentrated in a vacuum or atmospheric evaporator to a final concentration of 72° Brix to 74° Brix. The sludge is fermented resulting in a wine, which is distilled for producing 30%-70% ethanol, or rectified to a concentration of 96%.
Inventors:
YAMAGUCHI CARLOS AKIO (BR)
MORETTI ROBERTO HERMINIO (BR)
MORETTI ROBERTO HERMINIO (BR)
Application Number:
PCT/BR2011/000017
Publication Date:
August 09, 2012
Filing Date:
February 04, 2011
Export Citation:
Assignee:
YAMAGUCHI CARLOS AKIO (BR)
MORETTI ROBERTO HERMINIO (BR)
MORETTI ROBERTO HERMINIO (BR)
International Classes:
A23F5/00; A23L1/09; C12R1/865
Other References:
ROLZ, C. ET AL.: "Pressing coffee pulp", AGRICULTURAL WASTES, vol. 2, no. 3, 1980, pages 207 - 214
ROLZ, C ET AL.: "Biotechnology in washed coffee processing", PROCESS BIOCHEMISTRY, vol. 17, no. 2, 1982, pages 8 - 10 E 22
KESTRSON, J.W. ET AL.: "By-products and specialty products of Florida citrus", AGRICULTURAL EXPERIMENT STATION, vol. 784, 1976, UNIVERSITY OF FLORIDA, pages 26 - 29, 98 - 99, 101 - 104
CALZADA, J.F. ET AL.: "Biogas from coffee pulp", AGRICULTURAL WASTES, vol. 3, no. 3, 1981, pages 713 - 716
CALZADA, J.F. ET AL.: "Biogas production from coffee pulp juice: one-and two-phases systems", AGRICULTURAL WASTES, vol. 9, 1984, pages 217 - 230
BONETTO, M.F.G.F.: "Efeito de aplicacao pos colheita de fungistaticos na qualidade do cafe (Coffea arabica L.) preparado por via seca", DISSERTACAO DE MESTRADO, BIBFEA, UNICAMP, 2001
KASHYAP, D.R. ET AL.: "Applications of pectinases in the commercial sector: a review", BIORESOURCE TECHNOLOGY, vol. 77, 2001, pages 215 - 227, XP055103353, DOI: doi:10.1016/S0960-8524(00)00118-8
GOUVEA; B.M. ET AL.: "Feasibility of ethanol production from coffee husks", BIOTECHNOLOGY LETTERS, vol. 31, 2009, pages 1315 - 1319, XP019727608, DOI: doi:10.1007/s10529-009-0023-4
ROLZ, C ET AL.: "Biotechnology in washed coffee processing", PROCESS BIOCHEMISTRY, vol. 17, no. 2, 1982, pages 8 - 10 E 22
KESTRSON, J.W. ET AL.: "By-products and specialty products of Florida citrus", AGRICULTURAL EXPERIMENT STATION, vol. 784, 1976, UNIVERSITY OF FLORIDA, pages 26 - 29, 98 - 99, 101 - 104
CALZADA, J.F. ET AL.: "Biogas from coffee pulp", AGRICULTURAL WASTES, vol. 3, no. 3, 1981, pages 713 - 716
CALZADA, J.F. ET AL.: "Biogas production from coffee pulp juice: one-and two-phases systems", AGRICULTURAL WASTES, vol. 9, 1984, pages 217 - 230
BONETTO, M.F.G.F.: "Efeito de aplicacao pos colheita de fungistaticos na qualidade do cafe (Coffea arabica L.) preparado por via seca", DISSERTACAO DE MESTRADO, BIBFEA, UNICAMP, 2001
KASHYAP, D.R. ET AL.: "Applications of pectinases in the commercial sector: a review", BIORESOURCE TECHNOLOGY, vol. 77, 2001, pages 215 - 227, XP055103353, DOI: doi:10.1016/S0960-8524(00)00118-8
GOUVEA; B.M. ET AL.: "Feasibility of ethanol production from coffee husks", BIOTECHNOLOGY LETTERS, vol. 31, 2009, pages 1315 - 1319, XP019727608, DOI: doi:10.1007/s10529-009-0023-4
Attorney, Agent or Firm:
SCHARDONG, Roque Aloisio (453, -010 São Paulo - SP, BR)
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