EP0272923A2
Expired / Lapsed
EP
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Particulate product including glucose oxidase
Assignee: Stabra AG
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Filing: 1987-12-22
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Granted: —
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Expires: 2007-12-22
Abstract
Abstract A dry free flowing particulate product, particularly suitable for addition to food products as an oxygen scavenger, includes glucose, glucose oxidase and optionally, catalase. Also, a dry free flowing particulate product contains a low molecular weight polysaccharide and glucose oxidase in combination with a hydrolytic enzyme or enzymes which are capable of catalyzing the hydrolysis of said polysaccharide into glucose units. Methods of producing such particulate products are also described.
Inventors
- 👤 Don Scott
- 👤 Marja-Leena Saarki
- 👤 Juoko Virtanen
- 👤 Tom Szalkucki
- 👤 Kazi Farooqui
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 01:42
CPC Classifications
C; C12; C12Y; C12Y101/00; C12Y101/03; C12Y101/03004; A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/771; A23B2/783; C12N; C12N9/00; C12N9/98; C12Y111/00; C12Y111/01; C12Y111/01006
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
65 words
A method of making a dry free flowing particulate but water-soluble mixture consisting essentially of glucose and glucose oxidase, which comprises the steps of: combining an aqueous solution of glucose oxidase with glucose to form an admixture; removing water from said admixture at a rate sufficient to prevent the formation of a substantial amount of gluconic acid so as to produce a dry, particulate substance.
Claim 2
Independent Claim
65 words
A method of making a dry free flowing particulate but water-soluble mixture consisting essentially of glucose and glucose oxidase, which comprises the steps of: combining an aqueous solution of glucose oxidase with glucose to form an admixture; removing water from said admixture at a rate sufficient to prevent the formation of a substantial amount of gluconic acid so as to produce a dry, particulate substance.
Claim 3
Dependent Claim
27 words
A method as claimed in claim 1 wherein catalase is included in the aqueous solution of glucose oxidase which is combined with glucose to form the admixture.
Claim 4
Dependent Claim
18 words
A method as claimed in claim 1 or 2 wherein the pH of the admixture is about 7.
Claim 5
Dependent Claim
19 words
A method as claimed in claim 1, 2 or 3 wherein the glucose is anhydrous glucose or glucose monohydrate.
Claim 6
Dependent Claim
37 words
A method as claimed in claim 1, 2, 3 or 4 wherein the dry, particulate substance has a free moisture content of no more than about 2 percent by weight, based on the weight of the substance.
Claim 7
Dependent Claim
33 words
A method as claimed in claim 5 wherein the dry, particulate substance has a free moisture content of no more than about 1 percent by weight, based on the weight of the substance.
Claim 8
Independent Claim
33 words
A method as claimed in any preceding claim wherein an effective amount of an anti-caking agent such as polyethylene glycol, a metal silicate or microcrystalline cellulose is added to the dry, particulate substance.
Claim 9
Dependent Claim
18 words
A method as claimed in claim 1, 2, 3 or 4 wherein the water is removed by lyophilization.
Claim 10
Dependent Claim
40 words
A method as claimed in claim 8 wherein said dry particulate substance has a free moisture content of less than about 10 percent by weight based on weight of said substance, or a water activity of less than about 0.4.
Claim 11
Independent Claim
88 words
A method of making a dry free flowing particulate but water soluble mixture consisting essentially of a low molecular weight polysaccharide, glucose oxidase and a hydrolytic enzyme or enzymes capable of catalyzing the hydrolysis of the polysaccaride into glucose units, the method comprising the steps of: combining an aqueous enzyme solution with the polysaccaride to form an admixture; removing water from the admixture at a rate sufficient to prevent the formation of a substantial amount of glucose and gluconic acid so as to produce a dry, particulate substance.
Claim 12
Independent Claim
88 words
A method of making a dry free flowing particulate but water soluble mixture consisting essentially of a low molecular weight polysaccharide, glucose oxidase and a hydrolytic enzyme or enzymes capable of catalyzing the hydrolysis of the polysaccaride into glucose units, the method comprising the steps of: combining an aqueous enzyme solution with the polysaccaride to form an admixture; removing water from the admixture at a rate sufficient to prevent the formation of a substantial amount of glucose and gluconic acid so as to produce a dry, particulate substance.
Claim 13
Dependent Claim
18 words
A method as claimed in claim 10 wherein the polysaccharide is maltodextrin, and the hydrolytic enzyme is glucoamylase.
Claim 14
Dependent Claim
15 words
A method as claimed in claim 10 or 11 wherein said mixture also includes alpha-amylase.
Claim 15
Dependent Claim
19 words
A method as claimed in claim 10, 11 or 12 wherein the pH of the admixture is about 6.
Claim 16
Independent Claim
22 words
A method as claimed in any one of claims 1-12 wherein the pH of the admixture is about 5.5 to about 7.5.
Claim 17
Independent Claim
36 words
A method as claimed in any one of claims 1-7 and 10-14 wherein the water removal is carried out by drying the admixture at a temperature which does not substantially denature the protein that is present.
Claim 18
Dependent Claim
35 words
A method as claimed in claim 15 wherein the drying is carried out at a temperature which does not raise the temperature of the admixture or the dry particulate substance to more than about 60°C.
Claim 19
Independent Claim
38 words
A method as claimed in any one of claims 1-4 and 10-13 wherein the dry particulate substance has a free moisture content of no more than about 6 percent by weight based on the weight of the substance.
Claim 20
Independent Claim
20 words
A method as claimed in any preceding claim wherein the dry particulate substance is maintained in an essentially anaerobic environment.
Claim 21
Dependent Claim
46 words
A dry free flowing particulate but water soluble mixture consisting essentially of glucose and glucose oxidase and having a free moisture content of less than about 10 percent by weight based on the weight of the mixture, or a water activity of less than about 0.4.
Claim 22
Dependent Claim
46 words
A dry free flowing particulate but water soluble mixture consisting essentially of glucose and glucose oxidase and having a free moisture content of less than about 10 percent by weight based on the weight of the mixture, or a water activity of less than about 0.4.
Claim 23
Dependent Claim
10 words
A mixture as claimed in claim 19 additionally containing catalase.
Claim 24
Dependent Claim
33 words
A mixture as claimed in claim 19 or 20 wherein the free moisture content of the mixture is no more than about 6 percent by weight based on the weight of the mixture.
Claim 25
Dependent Claim
31 words
A mixture as claimed in claim 21 wherein the free moisture content of the mixture is no more than about 1 percent by weight based on the weight of the mixture.
Claim 26
Dependent Claim
58 words
A dry free flowing particulate but water soluble mixture consisting essentially of a low molecular weight polysaccharide, glucose oxidase, catalase and a hydrolytic enzyme or enzymes capable of catalyzing the hydrolysis of the polysaccharide into glucose units, and having a free moisture content of no more than about 10% by weight based on the weight of the mixture.
Claim 27
Dependent Claim
58 words
A dry free flowing particulate but water soluble mixture consisting essentially of a low molecular weight polysaccharide, glucose oxidase, catalase and a hydrolytic enzyme or enzymes capable of catalyzing the hydrolysis of the polysaccharide into glucose units, and having a free moisture content of no more than about 10% by weight based on the weight of the mixture.
Claim 28
Dependent Claim
12 words
A mixture as claimed in claim 23 wherein the polysaccharide is maltodextrin.
Claim 29
Dependent Claim
15 words
A mixture as claimed in claim 23 or 24 wherein the hydrolytic enzyme is glucoamylase.
Claim 30
Dependent Claim
13 words
A mixture as claimed in claim 23, 24 or 25 additionally including alpha-amylase.
Claim 31
Dependent Claim
14 words
A mixture as claimed in claim 23, 24, 25 or 26 additionally containing catalase.
Claim 32
Dependent Claim
14 words
A mixture as claimed in any one of claims 19-27 including an anti-caking agent.
Claim 33
Dependent Claim
20 words
A mixture as claimed in claim 28 wherein the anti-caking agent comprises polyethylene glycol, a metal silicate or microcrystalline cellulose.
Claim 34
Dependent Claim
22 words
A hermetically sealed package consisting essentially of a mixture as claimed in any one of claims 19-29 in an essentially anaerobic environment.
Claim 35
Dependent Claim
14 words
A package as claimed in claim 30 wherein the anaerobic environment contains gaseous nitrogen.
References Cited (Backward Citations)
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