Patent US4148928A successfully refreshed from Google Patents.
US4148928A
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Method for the extraction of undesirable and/or toxic glucosidic compound from vegetables
Assignee: Eni SpA
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Filing: 1977-06-01
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Granted: 1979-04-10
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Expires: 1997-06-01
Abstract
Abstract A method id disclosed for extracting from vegetable substances, especially seeds and seed flour, toxic substances of a glucosidic nature, such as for example simmondsin from jojoba seed flour. An organic solvent (or more organic solvents) containing at least one polar group is combined with an acidic electrolyte in aqueous solution and the extraction is carried out at room temperature and can be repeated. The contents of simmondsin thus drops from about 3% to 750 parts per million approx.
Inventors
- 👤 Giancarlo Sodini
- 👤 Marco Canella
- 👤 Alberto Patricelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:27
CPC Classifications
A; A23; A23L; A23L11/00; A23L11/30; A23L11/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
A method for the extraction of glucosidic compounds from seeds and seedflours which contain them, said process consisting in treating the latter with an organic solvent containing at least one polar group together with an aqueous solution of an electrolyte having an acidic nature selected from organic or inorganic acids or the acidic salts of such acids.
Claim 2
Independent Claim
57 words
A method for the extraction of glucosidic compounds from seeds and seedflours which contain them, said process consisting in treating the latter with an organic solvent containing at least one polar group together with an aqueous solution of an electrolyte having an acidic nature selected from organic or inorganic acids or the acidic salts of such acids.
Claim 3
Dependent Claim
29 words
A method according to claim 1 characterized in that the operation is carried out with a final ratio of the solute to the solvent ranging from 1:3 to 1:160.
Claim 4
Dependent Claim
31 words
A method according to claim 1 characterized in that the operation is carried out in the presence of an aqueous solution of electrolyte at a pH ranging from 2 to 6.
Claim 5
Dependent Claim
32 words
A method according to claim 1 characterized in that the operation is carried out at a temperature ranging from 4° C. to the temperature at which the denaturation of the proteins begins.
Claim 6
Independent Claim
41 words
A method for the extraction of simmondsin from defatted jojoba flour said method comprising contacting defatted jojoba with an extracting liquid which comprises a mixture of n-butanol and formic acid to extract the simmondsin and thereoften isolating the defatted jojoba flour.
Claim 7
Independent Claim
41 words
A method for the extraction of simmondsin from defatted jojoba flour said method comprising contacting defatted jojoba with an extracting liquid which comprises a mixture of n-butanol and formic acid to extract the simmondsin and thereoften isolating the defatted jojoba flour.
References Cited (Backward Citations)
US3732202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |