Patent US4895938A successfully refreshed from Google Patents.
US4895938A
Expired / Lapsed
US
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Process for separating polysaccharides from tamarind seeds
Assignee: Shikibo Ltd
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Filing: 1988-06-20
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Granted: 1990-01-23
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Expires: 2008-06-20
Abstract
Abstract A method for separating polysaccharides from tamarind seeds, comprising: (1) pulverizing the tamarind seeds to form particles of less than 80 microns; (2) dispersing the particles in an aqueous medium consisting essentially of water and 5-60% by weight of at least one water soluble organic solvent; (3) classifying the dispersion in a hydrocyclone, whereby the particles of polysaccharides descend to the bottom of the hydrocyclone, from which they are discharged; and whereby particles of other components, in particular proteins, simultaneously rise to the top of the hydrocyclone, from which they are discharged.
Inventors
- 👤 Takashi Teraoka
- 👤 Akira Iriguchi
- 👤 Kenji Ebie
- 👤 Namio Mizuhashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:25
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/006; C08B37/0087
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
191 words
A process for recovering from tamarind seeds a dispersion which is rich in particles rich in polysaccharides, said process consisting essentially of the steps of: (1) pulverizing tamarind seeds to form particles of less than 80 microns in size; (2) remove from the obtained particles those particles which have a size of less than 5 microns; (3) dispersing the remaining particles in an aqueous medium consisting essentially of water and 5-60% by weight of at least one water soluble organic solvent to form a dispersion which contains particles rich in polysaccharides and particles rich in other components of the tamarind seeds, said particles rich in polysaccharides being larger than said particles rich in other components; (4) classifying said dispersion in at least one hydrocyclone, whereby the particles rich in polysaccharides descend to the bottom of the hydrocyclone and the particles rich in other components rise to the top of the hydrocyclone; and (5) withdrawing from the bottom of the hydrocyclone a dispersion which is rich in the particles rich in polysaccharides, and withdrawing from the top of the hydrocyclone a dispersion which is rich in the particles rich in other components.
Claim 2
Dependent Claim
191 words
A process for recovering from tamarind seeds a dispersion which is rich in particles rich in polysaccharides, said process consisting essentially of the steps of: (1) pulverizing tamarind seeds to form particles of less than 80 microns in size; (2) remove from the obtained particles those particles which have a size of less than 5 microns; (3) dispersing the remaining particles in an aqueous medium consisting essentially of water and 5-60% by weight of at least one water soluble organic solvent to form a dispersion which contains particles rich in polysaccharides and particles rich in other components of the tamarind seeds, said particles rich in polysaccharides being larger than said particles rich in other components; (4) classifying said dispersion in at least one hydrocyclone, whereby the particles rich in polysaccharides descend to the bottom of the hydrocyclone and the particles rich in other components rise to the top of the hydrocyclone; and (5) withdrawing from the bottom of the hydrocyclone a dispersion which is rich in the particles rich in polysaccharides, and withdrawing from the top of the hydrocyclone a dispersion which is rich in the particles rich in other components.
Claim 3
Dependent Claim
24 words
A process as in claim 1, wherein the water soluble organic solvent is selected from the group consisting of lower aliphatic alcohols and ketones.
Claim 4
Dependent Claim
79 words
A process as in claim 1, wherein said step of classifying the dispersion of particles is conducted in at least two hydrocyclones arranged in parallel in a container which is provided with an entrance for the dispersion of particles to be classified, a common overflow port through which the dispersion which is rich in particles rich in other components is withdrawn, and a common port through which the dispersion which is rich in particles rich in polysaccharides is withdrawn.
Claim 5
Dependent Claim
62 words
A process as in claim 1, wherein at least two said containers are arranged in series, and the dispersion of particles to be classified is introduced into the first container in the series, and the aqueous medium is introduced into the last container in the series, and the dispersion and the aqueous medium are progressively conducted in opposite directions in the series.
Claim 6
Dependent Claim
182 words
A process for recovering from tamarind seeds a dispersions which is rich in particles rich in polysaccharides, said process consisting essentially of the steps of: (1) pulverizing tamarind seeds to form particles of less than 80 microns in size but not less than 5 microns in size; (2) dispersing the obtained particles in an aqueous medium consisting essentially of water and 5-60% by weight of at least one water soluble organic solvent to form a dispersion which contains particles rich in polysaccharides and particles rich in other components of the tamarind seeds, said particles rich in polysaccharides being larger than said particles rich in other components; (3) classifying said dispersion in at least one hydrocyclone, whereby the particles rich in polysaccharides descend to the bottom of the hydrocyclone and the particles rich in other components rise to the top of the hydrocyclone; and (4) withdrawing from the bottom of the hydrocyclone a dispersion which is rich in the particles rich in polysaccharides, and withdrawing from the top of the hydrocyclone a dispersion which is rich in the particles rich in other components.
Claim 7
Dependent Claim
182 words
A process for recovering from tamarind seeds a dispersions which is rich in particles rich in polysaccharides, said process consisting essentially of the steps of: (1) pulverizing tamarind seeds to form particles of less than 80 microns in size but not less than 5 microns in size; (2) dispersing the obtained particles in an aqueous medium consisting essentially of water and 5-60% by weight of at least one water soluble organic solvent to form a dispersion which contains particles rich in polysaccharides and particles rich in other components of the tamarind seeds, said particles rich in polysaccharides being larger than said particles rich in other components; (3) classifying said dispersion in at least one hydrocyclone, whereby the particles rich in polysaccharides descend to the bottom of the hydrocyclone and the particles rich in other components rise to the top of the hydrocyclone; and (4) withdrawing from the bottom of the hydrocyclone a dispersion which is rich in the particles rich in polysaccharides, and withdrawing from the top of the hydrocyclone a dispersion which is rich in the particles rich in other components.
Claim 8
Dependent Claim
24 words
A process as in claim 5, wherein the water soluble organic solvent is selected from the group consisting of lower aliphatic alcohols and ketones.
Claim 9
Dependent Claim
79 words
A process as in claim 5, wherein said step of classifying the dispersion of particles is conducted in at least two hydrocyclones arranged in parallel in a container which is provided with an entrance for the dispersion of particles to be classified, a common overflow port through which the dispersion which is rich in particles rich in other components is withdrawn, and a common port through which the dispersion which is rich in particles rich in polysaccharides is withdrawn.
Claim 10
Dependent Claim
62 words
A process as in claim 5, wherein at least two said containers are arranged in series, and the dispersion of particles to be classified is introduced into the first container in the series, and the aqueous medium is introduced into the last container in the series, and the dispersion and the aqueous medium are progressively conducted in opposite directions in the series.
References Cited (Backward Citations)
US3287350A
Cited
US3309355A
Cited
US3309356A
Cited
US3399189A
Cited
US3883505A
Cited
US4074043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-22 | 1993-07-24 | 1994-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-22 | 1997-07-24 | 1998-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-22 | 2001-07-24 | 2002-01-23 | $7700.00 | Window Closed / Lapsed |