Patent US3878191A successfully refreshed from Google Patents.
US3878191A
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Process for preparing soluble flavonoid glycosides
Assignee: KH Neochem Co Ltd
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Filing: 1972-02-07
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Granted: 1975-04-15
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Expires: 1992-02-07
Abstract
Abstract Modified flavonoid glycosides are prepared wherein the molecules include two or more glucose substituents. Such modified flavonoid glycosides exhibit uniquely higher solubilities than the unmodified compounds. Modification is achieved by reacting flavonoid monoglycosides with starchy materials in the presence of Alpha -amylase enzymes. The resultant flavonoid glycosides include principally two or three glucose substituents per molecule. Further reaction of the modified glycosides with Beta -amylase gives rise to decomposition of the glycoside having a high polymerization degree and a flavonoid glycoside having two or three glucoses per molecule is solely obtained.
Inventors
- 👤 Juichiro Fukumoto
- 👤 Shigetaka Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:34
CPC Classifications
C; C07; C07H; C07H17/00; C07H17/04; C07H17/06; C07H17/065; C07H17/07; C12; C12P; C12P19/00; C12P19/18; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/839
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
36 words
A SOLUBLE FLAVONOID GLYCOSIDE CONTAINING BETWEEN 2 AND 5 GLYCOSE SUBSTITUENTS PER MOLECULE AND WHEREIN SAID SUBSTITUENTS ARE GLUCOSES SELECTED FROM THE GROUP CONSISTING OF HESPERETIN-7-GLUCOSIDE, CITRONIN-7 GLUCOSIDE, NATINGENIN-7GLUCOSIDE, SAKURANETIN-5-GLUCOSIDE, ISOSAKURANETIN-7GLUCOSICE, AND CHALCONS AND DIHYDROCHALCONS THEREOF.
Claim 2
Dependent Claim
36 words
A SOLUBLE FLAVONOID GLYCOSIDE CONTAINING BETWEEN 2 AND 5 GLYCOSE SUBSTITUENTS PER MOLECULE AND WHEREIN SAID SUBSTITUENTS ARE GLUCOSES SELECTED FROM THE GROUP CONSISTING OF HESPERETIN-7-GLUCOSIDE, CITRONIN-7 GLUCOSIDE, NATINGENIN-7GLUCOSIDE, SAKURANETIN-5-GLUCOSIDE, ISOSAKURANETIN-7GLUCOSICE, AND CHALCONS AND DIHYDROCHALCONS THEREOF.
Claim 3
Dependent Claim
12 words
The flavonoid glycoside of claim 1 wherein said glycoside is hesperetin dihydrochalcon-7-maltoside.
Claim 4
Dependent Claim
12 words
The flavonoid glycoside of claim 1 wherein said glycoside is hesperetin dihydrochalcon-7-maltrioside.
Claim 5
Dependent Claim
12 words
The flavonoid glycoside of claim 1 wherein said glycoside is hesperetin dihydrochalcon-7-maltotetraoside.
Claim 6
Dependent Claim
12 words
The flavonoid glycoside of claim 1 wherein said glycoside is hesperetin dihydrochalcon-7-maltopentaoside.
References Cited (Backward Citations)
US3087821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |