Patent US3853706A successfully refreshed from Google Patents.
US3853706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing non-waxy starch hydrolysates
Assignee: VARIED INVESTMENTS Inc
•
Filing: 1971-01-18
•
Granted: 1974-12-10
•
Expires: 1991-01-18
Abstract
Abstract The present invention provides a process for preparing low D.E. starch hydrolysates and low D.E. conversion syrup products which are both liquid and solid. Starch is treated with bacterial alpha amylase to a D.E. less than 15. The hydrolytic action of the amylase is terminated by heat treatment and the resulting hydrolysate is further converted with bacterial alpha amylase to a D.E. between about 5 and about 20. From the resulting hydrolysate product is obtained a non-hazing syrup which is substantially completely water soluble.
Inventors
- 👤 F Armbruster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:54
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/14; A; A21; A21D; A21D2/00; A21D2/08; A21D2/14; A21D2/18; A23; A23L; A23L27/00; A23L27/30; A23L27/33; A23L27/35
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
93 words
A PROCESS FOR PRODUCING A NON-WAXY STARCH HYDROLYSATE WHICH COMPRISES TREATING AN AQUEOUS SLURRY OF A NON-WAXY CERAL STARCH WITH BACTERIAL ALPHA-AMULASE AT A TEMPERATURE BELOW 95*C TO LIQUEFY THE STARCH AND TO PROVIDE A STARCH HYDROLYSATE HAVING A D.E. WITHIN THE RANGE OF ABOUT 2 TO ABOUT 15, HEATING THE LIQUEFIED STARCH HYDROLYSATE TO A TEMPERATURE OF AT LEAST ABOUT 95* AND TREATING THE LIQUEFIED STARCH HYDROLYSATE WITH BACTERIAL ALPHA-AMYLASE AT A TEMPERATURE BELOW 85*C TO PRODUCE A STARCH HYDROLYSATE HAVING A D.E. WITHIN THE RANGE OF ABOUT 5 TO ABOUT 20.
Claim 2
Dependent Claim
93 words
A PROCESS FOR PRODUCING A NON-WAXY STARCH HYDROLYSATE WHICH COMPRISES TREATING AN AQUEOUS SLURRY OF A NON-WAXY CERAL STARCH WITH BACTERIAL ALPHA-AMULASE AT A TEMPERATURE BELOW 95*C TO LIQUEFY THE STARCH AND TO PROVIDE A STARCH HYDROLYSATE HAVING A D.E. WITHIN THE RANGE OF ABOUT 2 TO ABOUT 15, HEATING THE LIQUEFIED STARCH HYDROLYSATE TO A TEMPERATURE OF AT LEAST ABOUT 95* AND TREATING THE LIQUEFIED STARCH HYDROLYSATE WITH BACTERIAL ALPHA-AMYLASE AT A TEMPERATURE BELOW 85*C TO PRODUCE A STARCH HYDROLYSATE HAVING A D.E. WITHIN THE RANGE OF ABOUT 5 TO ABOUT 20.
Claim 3
Dependent Claim
25 words
A process in accordance with claim 1, wherein the liquefied non-waxy cereal starch has a D.E. in the range of from 2 to about 5.
Claim 4
Dependent Claim
16 words
A process in accordance with claim 1, wherein the cereal starch is a non-waxy corn starch.
Claim 5
Dependent Claim
26 words
A process in accordance with claim 1 wherein the slurry has a solids content within the range of about 20 to about 40 percent by weight.
Claim 6
Dependent Claim
24 words
A process in accordance with claim 1 wherein the cereal starch is liquefied at a temperature between about 70* C to about 95* C.
Claim 7
Dependent Claim
27 words
A process in accordance with claim 1 wherein the liquefied starch is heated to a temperature within the range of about 110* C to about 180* C.
Claim 8
Dependent Claim
23 words
A process in accordance with claim 1 wherein the D.E. of the non-waxy cereal starch hydrolysate is between about 10 and about 20.
Claim 9
Dependent Claim
33 words
A process in accordance with claim 1 which includes a step of concentrating the non-waxy cereal starch hydrolysate thus obtained to produce a syrup having a solids content greater than about 50 perCent.
Claim 10
Dependent Claim
35 words
A process in accordance with claim 1 which includes the step of concentrating the non-waxy cereal starcy hydrolysate thus obtained to produce a product having a moisture content of less than 15 percent, by weight.
Claim 11
Dependent Claim
114 words
A process for producing a non-waxy cereal starch hydrolysate which comprises gelatinizing a non-waxy cereal starch by heating a slurry of the non-waxy starch to a temperature above the gelatinization temperature of the starch, treating the gelatinized starch with bacterial alpha-amylase at a temperature below 95* C to liquefy the starch and to provide a starch hydrolysate having a D.E. within the range of about 2 to about 15, heating the liquefied starch hydrolysate to a temperature of at least about 95* C and treating the liquefied starch hydrolysate with bacterial alpha-amylase at a temperature below 85* C to produce a hydrolysate having a D.E. within the range of about 5 to about 20.
Claim 12
Dependent Claim
114 words
A process for producing a non-waxy cereal starch hydrolysate which comprises gelatinizing a non-waxy cereal starch by heating a slurry of the non-waxy starch to a temperature above the gelatinization temperature of the starch, treating the gelatinized starch with bacterial alpha-amylase at a temperature below 95* C to liquefy the starch and to provide a starch hydrolysate having a D.E. within the range of about 2 to about 15, heating the liquefied starch hydrolysate to a temperature of at least about 95* C and treating the liquefied starch hydrolysate with bacterial alpha-amylase at a temperature below 85* C to produce a hydrolysate having a D.E. within the range of about 5 to about 20.
Claim 13
Dependent Claim
26 words
A process in accordance with claim 10 wherein the liquefied non-waxy cereal starch has a D.E. in the range of from about 2 to about 5.
Claim 14
Dependent Claim
15 words
A process in accordance with claim 10 wherein the starch is a non-waxy corn starch.
Claim 15
Dependent Claim
26 words
A process in accordance with claim 10 wherein the slurry has a solids content within the range of about 20 to about 40 percent by weight.
Claim 16
Dependent Claim
23 words
A process in accordance with claim 10 wherein the starch is liquefied at a temperature between about 70* C to about 95* C.
Claim 17
Dependent Claim
27 words
A process in accordance with claim 10 wherein the liquefied hydrolysate is heated to a temperature within the range of about 110* C to about 180* C.
Claim 18
Dependent Claim
30 words
A process in accordance with claim 10 which includes the step of concentrating the hydrolysate thus obtained to produce a syrup having a solids content greater than about 50 percent.
Claim 19
Dependent Claim
31 words
A process in accordance with claim 10 which includes the step of concentrating the hydrolysate obtained to produce a product having a moisture content of less than 15 percent, by weight.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |