Tobacco separation process for extracting tobacco-derived materials, and associated extraction systems
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08B-030/00
C08B-030/04
C08B-037/06
C08B-015/00
A23L-001/0522
C07K-014/415
B02C-019/00
A24B-015/12
A23G-003/48
A24B-015/24
A24B-015/30
출원번호
US-0072019
(2011-03-25)
등록번호
US-9220295
(2015-12-29)
발명자
/ 주소
Morton, Joshua D.
Hume, Steven D.
Bratcher, Barry
출원인 / 주소
R.J. Reynolds Tobacco Company
대리인 / 주소
Womble Carlyle Sandridge & Rice, LLP
인용정보
피인용 횟수 :
0인용 특허 :
85
초록▼
A process of extracting at least one target component from a plant material is provided. The process includes homogenizing a plant material in the presence of an extraction solvent to reduce the plant material to a plant liquid component and a plant pulp component. Each of the components may be furt
A process of extracting at least one target component from a plant material is provided. The process includes homogenizing a plant material in the presence of an extraction solvent to reduce the plant material to a plant liquid component and a plant pulp component. Each of the components may be further processed to extract specific components therefrom. Specifically, the plant liquid component can be processed to extract a plant-derived starch material, plant-derived proteins, plant-derived sugars, plant-derived sugars, and the like. The plant pulp material can be processed to extract pectin and cellulose. An associated system is also provided.
대표청구항▼
1. A process for extracting a plant-derived component from a tobacco plant material, the process comprising: homogenizing the tobacco plant material in the presence of an extraction solvent comprising one or more salts of phosphoric acid and one or more antioxidants to form a combination of a plant
1. A process for extracting a plant-derived component from a tobacco plant material, the process comprising: homogenizing the tobacco plant material in the presence of an extraction solvent comprising one or more salts of phosphoric acid and one or more antioxidants to form a combination of a plant liquid component and a plant pulp component such that the plant liquid component is provided with a pH of about 6.5 to about 8.0;withdrawing the plant liquid component from the plant pulp component;separating the liquid plant component into a solids fraction comprising tobacco plant-derived starch and a soluble fraction;drying the solids fraction to a moisture content of less than about 10% by weight; andmilling the dried solids fraction to provide tobacco plant-derived starch particles having an average particle size of about 50 μm to about 1 mm. 2. The process of claim 1, wherein said homogenizing step comprises grinding the plant material. 3. The process of claim 1, wherein the plant liquid component is provided with a pH of about 7.0 to about 7.4. 4. The process of claim 1, wherein the plant liquid component is provided with a pH of about 7.2. 5. The process of claim 1, wherein the extraction solvent is a buffer solution. 6. The process of claim 1, wherein the extraction solvent further comprises one or more compounds selected from the group consisting of bisulfate containing compounds, metabisulfite containing compounds, Group I and Group II halide salts, and combinations thereof. 7. The process of claim 6, wherein the extraction solvent comprises a compound selected from the group consisting of dibasic sodium phosphate heptahydrate, monobasic sodium phosphate monohydrate, sodium chloride, sodium metabisulfite, and combinations thereof. 8. The process of claim 1, wherein the extraction solvent further comprises a compound selected from the group consisting of detergents, surfactants, amino acids, buffers, protein extraction agents, and combinations thereof. 9. The process of claim 8, wherein the extraction solvent comprises a buffer. 10. The process of claim 9, wherein the extraction solvent further comprises a protein extraction agent. 11. The process of claim 1, wherein the plant material and the extraction solvent are combined in a ratio of about 0.1 L to about 5 L of extraction solvent per 1 kg of plant material. 12. The process of claim 11, wherein the plant material and the extraction solvent are combined in a ratio of about 0.3 L to about 0.7 L of extraction solvent per 1 kg of plant material. 13. The process of claim 1, wherein the milled solids fraction has an average particle size of about 250 μm to about 750 μm. 14. The process of claim 1, further comprising isolating the plant-derived starch from the solids fraction. 15. The process of claim 14, wherein said isolating step comprises: combining the plant-derived starch with a suitable solvent liquid mixture;heating the liquid mixture;filtering the liquid mixture to isolate the plant-derived starch; andoptionally drying the plant-derived starch. 16. The process of claim 15, further comprising irradiating the plant-derived starch. 17. The process of claim 1, wherein said step of separating the liquid plant component into a solids fraction and a soluble fraction comprises centrifuging the liquid component. 18. The process of claim 17, wherein the centrifuging is carried out while the liquid plant component is being continuously fed into the centrifuge. 19. The process of claim 18, wherein the feed flow rate of the liquid plant component into the centrifuge is about 5 to about 25 L/min. 20. The process of claim 17, wherein the centrifuging is carried out under conditions of about 1,000 rpm to about 6,000 rpm. 21. The process of claim 17, wherein the centrifuging is carried out under conditions of about 500×g to about 2,500×g. 22. The process of claim 1, further comprising drying the plant pulp component. 23. The process of claim 22, further comprising extracting from the dried plant pulp component one or more materials selected from the group consisting of pectin, cellulose, and combinations thereof. 24. The process of claim 1, further comprising separating the soluble fraction into a liquid permeate component and a concentrate component. 25. The process of claim 24, wherein said separating comprises filtering the soluble fraction. 26. The process of claim 25, wherein after said filtering, the concentrate component comprises particles from the soluble fraction having a size of greater than about 0.1 microns. 27. The process of claim 26, further comprising drying the concentrate component to form a concentrate solids material. 28. The process of claim 27, further comprising milling the dried concentrate solids material to form a particulate. 29. The process of claim 24, wherein the concentrate component comprises one or more plant-derived component selected from the group consisting of insoluble proteins, large proteins, cell debris, and combinations thereof. 30. The process of claim 24, further comprising separating the liquid permeate component into a retentate component and an ancillary liquid permeate component. 31. The process of claim 30, wherein the retentate component comprises a soluble proteins component. 32. The process of claim 30, wherein the ancillary liquid permeate component comprises a component selected from the group consisting of sugars, peptides, alkaloids, and combinations thereof. 33. The process of claim 30, wherein said separating step comprises filtering with a 1 kDa ultrafiltration system.
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