US4197166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrating purification process for a fermentation product
Assignee: Kao Corp
•
Filing: 1978-07-28
•
Granted: 1980-04-08
•
Expires: 1998-07-28
Abstract
Abstract A dehydrating purification process for a fermentation product, which comprises adding at least one polyhydric alcohol represented by the formulae (III) or (IV), ##STR1## wherein R 8 represents a hydrogen atom or a methyl group, R 9 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and m and n represent integers from 1 to 6, to hydrated Sophorolipid or a secondary derivative thereof which is a fermentation product of Torulopsis bombicola, and distilling off water with heating under reduced pressure.
Inventors
- 👤 Shigeo Inoue
- 👤 Yoshiharu Kimura
- 👤 Manzo Kinta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:27
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C07H15/10; C07H3/00; C07H3/04; C12; C12N; C12N1/00; C12N1/14; C12N1/16; C12N1/165; C12P; C12P19/00; C12P19/44; C12R; C12R2001/00; C12R2001/645; C12R2001/88; Y; Y10; Y10S; Y10S435/00; Y10S435/803; Y10S435/8215; Y10S435/911; Y10S435/944
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
86 words
A dehydrating purification process for a fermentation product, which comprises adding at least one polyhydric alcohol represented by the formulae (III) or (IV), ##STR6## wherein R 8 represents a hydrogen atom or a methyl group, R 9 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and m and n represent integers from 1 to 6, to hydrated Sophorolipid or a secondary derivative thereof which is a fermentation product of Torulopsis bombicola, and distilling off water with heating under reduced pressure.
Claim 2
Dependent Claim
86 words
A dehydrating purification process for a fermentation product, which comprises adding at least one polyhydric alcohol represented by the formulae (III) or (IV), ##STR6## wherein R 8 represents a hydrogen atom or a methyl group, R 9 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and m and n represent integers from 1 to 6, to hydrated Sophorolipid or a secondary derivative thereof which is a fermentation product of Torulopsis bombicola, and distilling off water with heating under reduced pressure.
Claim 3
Dependent Claim
81 words
A dehydrating purification process according to claim 1, wherein said Sophorolipid is a mixture of the compounds represented by the formulae (I) and (II), ##STR7## wherein R 3 represents a hydrogen atom or a methyl group, R 4 represents a saturated or unsaturated hydrocarbonyl group having 12 to 16 carbon atoms when R 3 is a hydrogen atom, and R 4 represents a saturated or unsaturated hydrocarbonyl group having 11 to 15 carbon atoms when R 3 is a methyl group.
Claim 4
Dependent Claim
111 words
A dehydrating purification process according to claim 1, wherein said secondary derivative Sophorolipid is selected from the group consisting of the compounds represented by the formulae (V), (VI) and (VII) ##STR8## wherein R 5 is a hydrogen atom or a methyl group, R 6 represents an alkyl group having 2 to 20 carbon atoms, R 7 represents a hydroxyalkyl group having 2 to 5 carbon atoms, R 3 represents a saturated or unsaturated hydrocarbon group having 12 to 16 carbon atoms when R 3 is a hydrogen atom, and R 4 represents a saturated or unsaturated hydrocarbon group having 11 to 15 carbon atoms when R 3 is a methyl group.
Claim 5
Dependent Claim
40 words
A dehydrating purification process according to any one of claims 1 to 3, wherein R 8 and R 9 represent a hydrogen atom or a methyl group, and m is an integer from 1 to 3 in the formula (III).
Claim 6
Dependent Claim
23 words
A dehydrating purification process according to claim 1, wherein said polyhydric alcohol is added in an amount of 1 to 10% by weight.
References Cited (Backward Citations)
US3378542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |