US4758515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of a low-glucose digestion product from inulin-containing parts of plants
Assignee: TOPINA DIATROHSTOFF GmbH
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Filing: 1986-03-07
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Granted: 1988-07-19
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Expires: 2006-03-07
Abstract
Abstract Process for the preparation of a low-glucose digestion product from inulin-containing parts of plants, the parts of plants being comminuted, and the inulin being degraded to fructose or fructose oligomers. The process comprises a suspension of the comminuted parts of plants in an aqueous medium, or a pressed juice or extract obtained therefrom, being heated, without removal of the inulin, at temperatures up to 100 DEG C., until the enzymes intrinsic to the plant have substantially been inactivated, whereupon, after cooling, inulinase is added to the suspension or the pressed juice or the extract.
Inventors
- 👤 Gunter Barwald
- 👤 Erhard F. Flother
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:24
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/14
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
108 words
Process for the preparation of a low-glucose digestion product from inulin-containing parts of plants, the parts of plants being comminuted, and the inulin being degraded to fructose and fructose oligomers, which comprises a suspension of the comminuted parts of plants in an aqueous medium, or a pressed juice obtained therefrom, being heated without removal of the inulin, at temperatures up to 100° C., until the enzymes intrinsic to the plant have substantially been inactivated, whereupon, after cooling, inulinase is added to the suspension or the pressed juice, the digestion being controlled so that a ratio by weight of fructose to fructose oligomer to inulin of 1.5-3:1:0-1.5 is reached.
Claim 2
Dependent Claim
108 words
Process for the preparation of a low-glucose digestion product from inulin-containing parts of plants, the parts of plants being comminuted, and the inulin being degraded to fructose and fructose oligomers, which comprises a suspension of the comminuted parts of plants in an aqueous medium, or a pressed juice obtained therefrom, being heated without removal of the inulin, at temperatures up to 100° C., until the enzymes intrinsic to the plant have substantially been inactivated, whereupon, after cooling, inulinase is added to the suspension or the pressed juice, the digestion being controlled so that a ratio by weight of fructose to fructose oligomer to inulin of 1.5-3:1:0-1.5 is reached.
Claim 3
Dependent Claim
24 words
A process as claimed in claim 1 wherein Jerusalem artichoke tubers, dahlia tubers or chicory roots are used as said inulin-containing parts of plants.
Claim 4
Dependent Claim
31 words
A process as claimed in claim 1 wherein inulinase obtained from molds of the genera Aspergillus, Penicillium and Fusarium and/or from yeasts of the genera Kluyveromyces, Saccharomyces and Candida is used.
Claim 5
Dependent Claim
31 words
A process as claimed in claim 2 wherein inulinase obtained from molds of the genera Aspergillus, Penicillium and Fusarium and/or from yeasts of the genera Kluyveromyces, Saccharomyces and Candida is used.
Claim 6
Dependent Claim
37 words
A process as claimed in claim 1 wherein the comminution of the parts of plants is carried out using screening or hammer mills or using slicing machines, down to a particle size between 0.5 and 25 mm.
Claim 7
Dependent Claim
33 words
A process as claimed in claim 1 wherein the pH of the suspension is adjusted to 3.0 to 7.0, and the suspension or the pressed juice is heated at 70° to 100° C.
Claim 8
Dependent Claim
33 words
A process as claimed in claim 4 wherein the pH of the suspension is adjusted to 3.5 to 5.5, and the suspension or the pressed juice is heated at 80° to 90° C.
Claim 9
Dependent Claim
19 words
A process as claimed in claim 1 wherein the inulinase is added at temperatures between 40° and 65° C.
Claim 10
Dependent Claim
19 words
A process as claimed in claim 4 wherein the inulinase is added at temperatures between 40° and 65° C.
Claim 11
Dependent Claim
19 words
A process as claimed in claim 7 wherein the inulinase is added at temperatures between 40° and 65° C.
Claim 12
Dependent Claim
47 words
A process as claimed in claim 1 wherein the glucose derived from the terminal glucose groups of the inulin is oxidized to gluconic acid by passing oxygen, or a gas containing oxygen, through the suspension or the pressed juice, with the addition of glucose oxidase and catalase.
Claim 13
Dependent Claim
47 words
A process as claimed in claim 4 wherein the glucose derived from the terminal glucose groups of the inulin are oxidized to gluconic acid by passing oxygen, or a gas containing oxygen, through the suspension or the pressed juice, with the addition of glucose oxidase and catalase.
Claim 14
Dependent Claim
47 words
A process as claimed in claim 7 wherein the glucose derived from the terminal glucose groups of the inulin are oxidized to gluconic acid by passing oxygen, or a gas containing oxygen, through the suspension or the pressed juice, with the addition of glucose oxidase and catalase.
Claim 15
Dependent Claim
29 words
A process as claimed in claim 12 wherein the concentration of the oxygen dissolved in the aqueous medium is adjusted to between 0.1 and 1 mg O 2 /liter.
References Cited (Backward Citations)
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Cited
US4277563A
Cited
US4345031A
Cited
US4460686A
Cited
US4397949A
Cited
US4421852A
Cited
US4478854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-19 | 1992-01-18 | 1992-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-19 | 1996-01-18 | 1996-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-19 | 2000-01-18 | 2000-07-19 | $7700.00 | Window Closed / Lapsed |