US3909356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of fatty acid esters of fructose
Assignee: KH Neochem Co Ltd
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Filing: 1974-08-26
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Granted: 1975-09-30
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Expires: 1994-08-26
Abstract
Abstract A process for producing fatty acid esters of fructose including the steps of (a) culturing a fructose-utilizing microorganism capable of producing fatty acid esters of fructose and belonging to the genus Arthrobacter, Corynebacterium, Nocardia or Mycobacterium in a medium containing fructose as a carbon source, (b) forming the fatty acid esters of fructose intracellularly and (c) recovering the esters from the microbial cells.
Inventors
- 👤 Takeo Suzuki
- 👤 Seiga Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:16
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/04; C07H13/06; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C12P; C12P19/00; C12P7/00; C12P7/62; C12R; C12R2001/00; C12R2001/01; C12R2001/06; C12R2001/15; C12R2001/29; C12R2001/31; C12R2001/32; C12R2001/34; C12R2001/365; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/83; Y10S435/843; Y10S435/863; Y10S435/866; Y10S435/867; Y10S435/869; Y10S435/872
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
56 words
A PROCESS FOR PRODUCING FATTY ACID ESTERS OF FRUCTOSE, WHCH COMPRISES CULTURING A FRUCTOSE-UTILIZING MICROORGANISM CAPABLE OF PRODUCING FATTY ACID ESTERS OF FRUCTOSE AND BELONGING TO THE GENUS ARTHROBACTER, CORYNBACTERIUM, NACARDIA OR MYCOBACTERIUM IN A MEDIUM CONTAINING FRUCTOSE INTRACELLULARLY SOURCE, FORMING THE FATTY ACID ESTERS OF FRUCTOSE INTRACELLULARLY AND RECOVERING THE ESTERS FROM THE MICROBIAL CELLS.
Claim 2
Dependent Claim
56 words
A PROCESS FOR PRODUCING FATTY ACID ESTERS OF FRUCTOSE, WHCH COMPRISES CULTURING A FRUCTOSE-UTILIZING MICROORGANISM CAPABLE OF PRODUCING FATTY ACID ESTERS OF FRUCTOSE AND BELONGING TO THE GENUS ARTHROBACTER, CORYNBACTERIUM, NACARDIA OR MYCOBACTERIUM IN A MEDIUM CONTAINING FRUCTOSE INTRACELLULARLY SOURCE, FORMING THE FATTY ACID ESTERS OF FRUCTOSE INTRACELLULARLY AND RECOVERING THE ESTERS FROM THE MICROBIAL CELLS.
Claim 3
Dependent Claim
26 words
The process of claim 1, wherein the culturing is carried out under aerobic conditions at 20*C to 40*C at a pH of from 4 to 9.
Claim 4
Dependent Claim
53 words
The process of claim 1, wherein the esters are recovered from the microbial cells by initially separating the microbial cells from the culture liquor, extracting the cells with an organic solvent system, vaporizing the solvent system, further extracting the resulting residue with another solvent and finally effecting elution of the fatty acid esters.
Claim 5
Dependent Claim
39 words
The process of claim 3, wherein elution is effected with a mixture of a chlorinated hydrocarbon and a lower aliphatic alcohol, the mixing ratio by volume of the hydrocarbon to the alcohol being stepwise varied from 99:1 to 95:5.
Claim 6
Dependent Claim
42 words
The process of claim 1, wherein the fatty acid esters obtained are a reaction product of 1 mole of fructofuranose and 1, 2, 4 or 5 mols of a fatty acid, the fatty acid residue in the esters having the following formula:
Claim 7
Dependent Claim
59 words
The process of claim 1, wherein the microorganism is selected from the group consisting of: Arthrobacter paraffineus ATCC 15591 Arthrobacter hydrocarboglutamicus ATCC 15583 Corynebacterium hydrocarboclastus ATCC 21628 Corynebacterium psudodiphtheriticum ATCC 10701 Nocardia praffinica ATCC 21198 Nocardia globerula ATCC 13130 Nocardia convoluta ATCC 4275 Mycobacterium rubrum ATCC 14346 Mycobacterium paraffinicum ATCC 12670 Mycobacterium smegmatis ATCC 21293 Mycobacterium smegmatis ATCC 607
References Cited (Backward Citations)
US3637461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |