US2801954A
Expired / Lapsed
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Preparation of starch from starch bearing plant materials by pectic enzymes
Assignee: Council of Scientific and Industrial Research
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Filing: 1953-11-18
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Granted: 1957-08-06
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Expires: 1973-11-18
Abstract
No abstract record available.
Inventors
- 👤 Damodaran Manayath
- 👤 Babbar Inderjit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:35
CPC Classifications
C; C08; C08B; C08B30/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/913; Y10S435/917; Y10S435/92; Y10S435/933; Y10S435/935; Y10S435/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF RECOVERING STARCH FROM STARCH BEARING PLANT MATERIALS IN WHICH THE STARCH IS AT LEAST PARTLY ENVELOPED BY PECTIC SUBSTANCES, COMPRISING THE STEPS OF TREATING SAID PLANT MATERIAL WITH PECTIC ENZYMES OBTAINED FROM A CULTURE OF A PECTIC ENZYME-PRODUCING MICROORGANISM BELONGING TO THE GROUP CONSISTING OF ASPERILLUS AUREUS, ASPERGILLUS NIGER, ASPERGILLUS WENTII, BOTRYTIS CINERA, PENCILLIUM CHRYSOGENUM AND RHIZOPUS TRITICI WHEREBY THE PECTIC SUBSTANCES ENVELOPING SAID STARCH ARE AT LEAST PARTLY DISSOLVED, THUS LIBERATING THE STARCH WITHOUT SUBSTANTIALLY ALTERING ITS CONDITION; AND SEPARATING THE THUS LIBERATED STARCH FROM THE REMAINDER OF THE REACTION MASS.
Claim 2
Independent Claim
95 words
A METHOD OF RECOVERING STARCH FROM STARCH BEARING PLANT MATERIALS IN WHICH THE STARCH IS AT LEAST PARTLY ENVELOPED BY PECTIC SUBSTANCES, COMPRISING THE STEPS OF TREATING SAID PLANT MATERIAL WITH PECTIC ENZYMES OBTAINED FROM A CULTURE OF A PECTIC ENZYME-PRODUCING MICROORGANISM BELONGING TO THE GROUP CONSISTING OF ASPERILLUS AUREUS, ASPERGILLUS NIGER, ASPERGILLUS WENTII, BOTRYTIS CINERA, PENCILLIUM CHRYSOGENUM AND RHIZOPUS TRITICI WHEREBY THE PECTIC SUBSTANCES ENVELOPING SAID STARCH ARE AT LEAST PARTLY DISSOLVED, THUS LIBERATING THE STARCH WITHOUT SUBSTANTIALLY ALTERING ITS CONDITION; AND SEPARATING THE THUS LIBERATED STARCH FROM THE REMAINDER OF THE REACTION MASS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |