Enzyme-Assisted Soluble Coffee Production
First Claim
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1. A coffee beverage composition being devoid of significant contents of oil and insoluble particulates, comprising(a) at least 15% based on the total weight of soluble coffee solids of total mannose;
- wherein the free mannose content is less than 50% by weight of the total mannose content; and
(b) less than 1,000 ppm on a total soluble coffee solids basis of 5-hydroxymethyl furfural (5-HMF).
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Abstract
The invention relates to a coffee beverage composition being devoid of significant contents of oil and insoluble particulates, comprising
- (a) at least 15% based on the total weight of coffee solids of total mannose, wherein the free mannose content is less than 50% by weight of the total mannose content, and
- (b) less than 1,000 ppm on a total coffee solids basis of 5-hydroxymethyl furfural, and to a process for producing a soluble coffee extract, comprising the steps:
- (i) combining roast and ground coffee with water,
- (ii) adding hydrolase enzymes,
- (iii) wet-milling to a mean particle size of about 10 to about 250 μm,
- (iv) treating the reaction mixture by exposing it to a temperature in the range of about 20° C. to about 90° C., preferably about 50° C. to about 60° C., and
- (v) circulating the reaction mixture through a cross-flow semi-permeable membrane separation device where the soluble coffee extract is obtained as permeate.
29 Citations
39 Claims
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1. A coffee beverage composition being devoid of significant contents of oil and insoluble particulates, comprising
(a) at least 15% based on the total weight of soluble coffee solids of total mannose; - wherein the free mannose content is less than 50% by weight of the total mannose content; and
(b) less than 1,000 ppm on a total soluble coffee solids basis of 5-hydroxymethyl furfural (5-HMF). - View Dependent Claims (2, 3, 4, 5, 6)
- wherein the free mannose content is less than 50% by weight of the total mannose content; and
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7. A process for producing a soluble coffee extract, comprising the steps:
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(i) combining roast and ground coffee with water, (ii) adding hydrolase enzymes, (iii) wet-milling to a mean particle size of about 10 to about 250 μ
m to form a reaction mixture,(iv) treating the reaction mixture by exposing it to a temperature in the range of about 20°
C. to about 90°
C., and(v) circulating the reaction mixture through a cross-flow semi-permeable membrane separation device where the soluble coffee extract is obtained as permeate. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 39)
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38. A coffee beverage or non-beverage composition being essentially devoid of enzyme residues.
Specification