[특허]System and process for starch production

System and process for starch production 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08B-030/04
출원번호	US-0142120 (2008-06-19)
등록번호	US-8518186 (2013-08-27)
발명자 / 주소	Hassan, Abbas Bagherzadeh, Ebrahim Anthony, Rayford G. Borsinger, Gregory Hassan, Aziz
출원인 / 주소	H R D Corporation
대리인 / 주소	Westby, Timothy S.
인용정보	피인용 횟수 : 0 인용 특허 : 26

초록 ▼

Use of a high shear mechanical device in a process for production of starch by hydration and disruption of corn kernel particles in the presence of sulfur dioxide or bisulfite ions makes possible a decrease in mass transfer limitations, thereby enhancing starch production. A system for production of starch is also provided in which a high shear mixing device is configured to receive an aqueous corn slurry from a pump that is disposed between the reactor and a gaseous sulfur dioxide inlet of the high shear mixing device. The high shear mixing device is also configured to generate a fine dispersion of sulfur dioxide bubbles and small corn particles in the slurry. A reactor is configured to receive the output from the high shear mixing device and to provide for starch production.

대표청구항 ▼

1. A method for producing starch, the method comprising: combining dehulled and degermed corn kernel particles, sulfur dioxide, and an aqueous medium and subjecting the combination to high shear within a high shear mixing device to form a high shear mixture comprising submicron-sized corn kernel particles dispersed in said aqueous medium, wherein said high shear mixing device comprises at least one generator comprising a rotor and a complementarily-shaped stator, thus causing the extraction of starch from said dispersed particles and solubilization of said starch in said aqueous medium; andseparating starch from said high shear mixture. 2. The method of claim 1, wherein forming said high shear mixture comprises subjecting said combination to a shear rate in the range of from 20,000 s−1 to 1,600,000 s−1. 3. The method of claim 1, wherein said rotor comprises a rotor tip, and wherein forming said high shear mixture comprises subjecting said combination to a rotor tip speed in the range of from about 9.4 msec to about 40 msec. 4. The method of claim 3, wherein said tip speed is in the range of from about 22.9 msec to about 40 m/sec. 5. The method of claim 1, wherein separating at least a portion of the starch occurs in a vessel that is separate from said high shear mixing device. 6. The method of claim 1 further comprising processing said high shear mixture in a second generator to reduce the average size of particles in said high shear mixture prior to extracting. 7. The method of claim 6 wherein the second generator is within the high shear mixing device. 8. The method of claim 6 wherein the second generator is within another high shear mixing device. 9. The method of claim 6 wherein the shear rate provided by one generator is different from the shear rate provided by the other generator. 10. The method of claim 1 carried out in batch mode of operation. 11. The method of claim 1 carried out in continuous mode of operation. 12. The method of claim 1 wherein separating comprises introducing the high shear mixture into a starch-gluten separator configured for separating said starch from a product comprising gluten. 13. The method of claim 1 wherein the combination consists essentially of an aqueous solution of sulfur dioxide and dehulled and degermed corn kernel particles. 14. The method of claim 1 wherein the high shear mixing device comprises at least three generators. 15. The method of claim 1 wherein the high shear mixing device produces an output speed of about 7900 rpm. 16. The method of claim 1 wherein the rotor and the stator comprise teeth. 17. The method of claim 1 wherein the combination comprises from about 10 to about 40 wt % dehulled and degermed corn kernel particles. 18. The method of claim 1 wherein the high shear mixture is acidic. 19. The method of claim 18 wherein the high shear mixture has a pH of about 2.5. 20. The method of claim 1 wherein the high shear mixture comprises from about 1 wt % to about 2 wt % dissolved sulfur dioxide. 21. The method of claim 1 wherein the mean diameter of the corn kernel particles in the high shear mixture is in the range of from about 0.1 μm to about 0.4 μm.

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Holl Richard A. (2183 Eastridge Trail Oxnard CA 93030), Methods and apparatus for high-shear material treatment.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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System and process for starch production 원문보기

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System and process for starch production 원문보기

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