Patent US4119435A successfully refreshed from Google Patents.
US4119435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing soybean polysaccharides
Assignee: Takeda Pharmaceutical Co Ltd
•
Filing: 1977-06-03
•
Granted: 1978-10-10
•
Expires: 1997-06-03
Abstract
Abstract Soybean polysaccharides are produced by extracting a residue which is obtained after the separation of soy proteins from soybean, with an aqueous alkaline solution and recovering the resultant solid fraction.
Inventors
- 👤 Yukihiro Nakao
- 👤 Kasumi Miyashita
- 👤 Jun Toda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:38
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0003; A; A23; A23L; A23L13/00; A23L13/40; A23L13/42; A23L13/426; A23L23/00; A23L23/10
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
50 words
A method for producing soybean polysaccharides which comprises extracting a residue, which is obtained after separation of a soy milk from soybeans by an extractive separation technique, with an aqueous alkaline solution having a pH value not less than 11 and recovering the resultant solid matter containing the soybean polysaccharides.
Claim 2
Independent Claim
50 words
A method for producing soybean polysaccharides which comprises extracting a residue, which is obtained after separation of a soy milk from soybeans by an extractive separation technique, with an aqueous alkaline solution having a pH value not less than 11 and recovering the resultant solid matter containing the soybean polysaccharides.
Claim 3
Dependent Claim
12 words
A method according to claim 1, wherein the alkali is ammonium hydroxide.
Claim 4
Dependent Claim
22 words
A method according to claim 1, wherein the objective polysaccharides contain no more than about 13% of protein (on a dry basis).
Claim 5
Dependent Claim
23 words
A method according to claim 1 wherein the temperature of extracting the residue is in the range of about 40° to 60° C.
Claim 6
Dependent Claim
14 words
A method according to claim 1, wherein the alkali is an alkali metal hydroxide.
Claim 7
Dependent Claim
12 words
A method according to claim 5, wherein the alkali is sodium hydroxide.
Claim 8
Dependent Claim
16 words
A method according to claim 1, wherein the aqueous alkaline solution contains a water-miscible organic solvent.
Claim 9
Dependent Claim
19 words
A method according to claim 7, wherein pH value of the aqueous alkaline solution is not less than 11.
Claim 10
Dependent Claim
12 words
A method according to claim 7, wherein the alkali is ammonium hydroxide.
Claim 11
Dependent Claim
20 words
A method according to claim 7, wherein the content of the water-miscible organic solvent is 30 to 70 (weight) percent.
Claim 12
Dependent Claim
13 words
A method according to claim 7, wherein the water-miscible organic solvent is t-butanol
Claim 13
Dependent Claim
13 words
A method according to claim 7, wherein the water-miscible organic solvent is acetone.
Claim 14
Dependent Claim
22 words
A method according to claim 7, wherein the objective polysaccharides contain no more than about 13% of protein (on a dry basis).
Claim 15
Dependent Claim
22 words
A method according to claim 7, wherein the objective polysaccharides contain no more than about 10% of protein (on a dry basis).
Claim 16
Dependent Claim
14 words
A method according to claim 7, wherein the alkali is an alkali metal hydroxide.
Claim 17
Dependent Claim
12 words
A method according to claim 15, wherein the alkali is sodium hydroxide.
Claim 18
Dependent Claim
21 words
A method according to claim 7, wherein the water-miscible organic solvent is a lower alcohol having 1 to 3 carbon atoms.
Claim 19
Dependent Claim
12 words
A method according to claim 17, wherein the lower alcohol is ethanol.
Claim 20
Dependent Claim
12 words
A method according to claim 17, wherein the lower alcohol is methanol.
Claim 21
Dependent Claim
12 words
A method according to claim 17, wherein the lower alcohol is n-propanol.
Claim 22
Dependent Claim
12 words
A method according to claim 17, wherein the lower alcohol is i-propanol.
Claim 23
Independent Claim
78 words
A method for producing soybean polysaccharides, which comprises extracting soybeans or defatted soybeans with water, an aqueous dilute salt solution or an aqueous dilute alkaline solution and recovering the resultant residue, then subjecting the resultant residue to extraction with an aqueous alkaline solution of pH 11 or higher, which contains or does not contain an organic water-miscible solvent in an amount of 30 to 70 weight percent, and finally recovering the resultant solid matter containing the soybean polysaccharides.
Claim 24
Independent Claim
78 words
A method for producing soybean polysaccharides, which comprises extracting soybeans or defatted soybeans with water, an aqueous dilute salt solution or an aqueous dilute alkaline solution and recovering the resultant residue, then subjecting the resultant residue to extraction with an aqueous alkaline solution of pH 11 or higher, which contains or does not contain an organic water-miscible solvent in an amount of 30 to 70 weight percent, and finally recovering the resultant solid matter containing the soybean polysaccharides.
References Cited (Backward Citations)
CA868848A
Cited
US2785155A
Cited
US2881159A
Cited
US3365440A
Cited
US3454404A
Cited
US3607860A
Cited
US3649293A
Cited
US3714210A
Cited
US3926940A
Cited
US3966982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |