Protein-containing emulsions and adhesives, and manufacture and use thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09J-189/00
C08H-001/00
C09J-005/00
C08G-018/10
C08G-018/64
C08G-018/70
C08L-097/02
C08L-023/08
출원번호
US-0951710
(2013-07-26)
등록번호
US-9309444
(2016-04-12)
발명자
/ 주소
Parker, Anthony A.
Marcinko, Joseph J.
출원인 / 주소
Biopolymer Technologies, Ltd.
대리인 / 주소
Goodwin Procter LLP
인용정보
피인용 횟수 :
5인용 특허 :
123
초록
This invention provides emulsions and adhesives comprising proteins that can be isolated from a variety of sources including renewable plant biomass, and methods of making and using such emulsions and adhesives.
대표청구항▼
1. A stable emulsion comprising from about 1% to about 90% (w/w) of an oil and from about 1% to about 99% (w/w) of an isolated polypeptide composition capable of dispersing PMDI in an aqueous medium, wherein the isolated polypeptide composition is derived from one or more of corn, wheat, sunflower,
1. A stable emulsion comprising from about 1% to about 90% (w/w) of an oil and from about 1% to about 99% (w/w) of an isolated polypeptide composition capable of dispersing PMDI in an aqueous medium, wherein the isolated polypeptide composition is derived from one or more of corn, wheat, sunflower, cotton, rapeseed, canola, castor, camelina, flax, jatropha, mallow, peanuts, tobacco, or whey, and the isolated polypeptide composition produces a stable emulsion of the oil in an aqueous medium. 2. The stable emulsion of claim 1, wherein isolated polypeptide composition is derived from rapeseed or canola. 3. The stable emulsion of claim 1, wherein isolated polypeptide composition is derived from camelina, flax, jatropha, mallow, peanuts, or tobacco. 4. The stable emulsion of claim 1, wherein isolated polypeptide composition is derived from whey. 5. The stable emulsion of claim 1, wherein isolated polypeptide composition is derived from corn, wheat, sunflower, or cotton. 6. The stable emulsion of claim 1, wherein the isolated polypeptide composition is obtained by a process comprising the steps of: (a) incubating an aqueous solution comprising protein meal, protein isolate, or a combination thereof from the requisite plant or whey, at a pH in the range from about 6.5 to about 13 for at least 5 minutes;(b) after step (a), reducing the pH to about 4.0-5.0 thereby to precipitate both a portion of water-soluble protein and water-insoluble protein;(c) harvesting the protein precipitated in step (b);(d) washing the protein harvested in step (c) thereby to produce the isolated polypeptide composition. 7. The stable emulsion of claim 2, wherein the isolated polypeptide composition is obtained by a process comprising the steps of: (a) incubating an aqueous solution comprising protein meal, protein isolate, or a combination thereof from the requisite plant or whey, at a pH in the range from about 6.5 to about 13 for at least 5 minutes;(b) after step (a), reducing the pH to about 4.0-5.0 thereby to precipitate both a portion of water-soluble protein and water-insoluble protein;(c) harvesting the protein precipitated in step (b);(d) washing the protein harvested in step (c) thereby to produce the isolated polypeptide composition. 8. The stable emulsion of claim 1, wherein the isolated polypeptide composition comprises one or more of the following features: i. an amide-I absorption band between about 1620 cm−1 and 1632 cm−1 and an amide-II band between approximately 1514 cm−1 and 1521 cm−1, as determined by solid state Fourier Transform Infrared Spectroscopy (FTIR),ii. a prominent 2° amide N—H stretch absorption band centered at about 3272 cm−1, as determined by solid state FTIR,iii. an average molecular weight of between about 600 and about 2,500 Daltons,iv. two protonated nitrogen clusters defined by 15N chemical shift boundaries at about 86.2 ppm and about 87.3 ppm, and 1H chemical shift boundaries at about 7.14 ppm and 7.29 ppm for the first cluster, and 1H chemical shift boundaries at about 6.66 ppm and 6.81 ppm for the second cluster, as determined by solution state, two-dimensional proton-nitrogen coupled NMR, andv. is capable of dispersing an oil-in-water or water-in-oil to produce a homogeneous emulsion that is stable for least 5 minutes. 9. The stable emulsion of claim 2, wherein the isolated polypeptide composition comprises one or more of the following features: i. an amide-I absorption band between about 1620 cm−1 and 1632 cm−1 and an amide-II band between approximately 1514 cm−1 and 1521 cm−1, as determined by solid state Fourier Transform Infrared Spectroscopy (FTIR),ii. a prominent 2° amide N—H stretch absorption band centered at about 3272 cm−1, as determined by solid state FTIR,iii. an average molecular weight of between about 600 and about 2,500 Daltons,iv. two protonated nitrogen clusters defined by 15N chemical shift boundaries at about 86.2 ppm and about 87.3 ppm, and 1H chemical shift boundaries at about 7.14 ppm and 7.29 ppm for the first cluster, and 1H chemical shift boundaries at about 6.66 ppm and 6.81 ppm for the second cluster, as determined by solution state, two-dimensional proton-nitrogen coupled NMR, andv. is capable of dispersing an oil-in-water or water-in-oil to produce a homogeneous emulsion that is stable for least 5 minutes. 10. The stable emulsion of claim 1, wherein the emulsion is an aqueous emulsion. 11. The stable emulsion of claim 2, wherein the emulsion is an aqueous emulsion. 12. The stable emulsion of claim 9, wherein the emulsion is an aqueous emulsion. 13. The stable emulsion of claim 1, wherein the emulsion exhibits substantially no phase separation by visual inspection for at least 5 minutes after mixing the isolated polypeptide composition with the oil. 14. The stable emulsion of claim 2, wherein the emulsion exhibits substantially no phase separation by visual inspection for at least 5 minutes after mixing the isolated polypeptide composition with the oil. 15. The stable emulsion of claim 1, wherein the emulsion comprises from about 1% to about 50% (w/w) of an oil. 16. The stable emulsion of claim 2, wherein the emulsion comprises from about 1% to about 50% (w/w) of an oil. 17. A stable emulsion comprising an oil in an amount of from about 1% to about 90% (w/w) and as the emulsifier an isolated water-insoluble/water dispersible protein fraction in an amount of from about 1% to about 99% (w/w), wherein isolated water-insoluble/water dispersible protein fraction is (i) derived from canola, (ii) produces a stable emulsion of the oil in an aqueous medium, and (iii) has the ability to disperse PMDI in an aqueous medium. 18. A stable emulsion comprising an oil in an amount of from about 1% to about 90% (w/w) and as the emulsifier an isolated water-insoluble/water dispersible protein fraction in an amount of from about 1% to about 99% (w/w), wherein isolated water-insoluble/water dispersible protein fraction is (i) derived from soy, (ii) produces a stable emulsion of the oil in an aqueous medium, and (iii) has the ability to disperse PMDI in an aqueous medium. 19. The stable emulsion of claim 18, wherein the isolated water-insoluble/water dispersible protein fraction is obtained by a process comprising the steps of: (a) incubating an aqueous solution comprising soy protein meal, soy protein isolate, or a combination thereof, at a pH in the range from about 6.5 to about 13 for at least 5 minutes;(b) after step (a), reducing the pH to about 4.0-5.0 thereby to precipitate both a portion of water-soluble protein and water-insoluble protein;(c) harvesting the protein precipitated in step (b);(d) washing the protein harvested in step (c) thereby to produce the isolated water-insoluble/water dispersible protein fraction. 20. The stable emulsion of claim 18, wherein the isolated water-insoluble/water dispersible protein fraction comprises the following features: i. an amide-I absorption band between about 1620 cm−1 and 1632 cm−1 and an amide-II band between approximately 1514 cm−1 and 1521 cm−1, as determined by solid state Fourier Transform Infrared Spectroscopy (FTIR),ii. a prominent 2° amide N—H stretch absorption band centered at about 3272 cm−1, as determined by solid state FTIR,iii. an average molecular weight of between about 600 and about 2,500 Daltons,iv. two protonated nitrogen clusters defined by 15N chemical shift boundaries at about 86.2 ppm and about 87.3 ppm, and 1H chemical shift boundaries at about 7.14 ppm and 7.29 ppm for the first cluster, and 1H chemical shift boundaries at about 6.66 ppm and 6.81 ppm for the second cluster, as determined by solution state, two-dimensional proton-nitrogen coupled NMR, andv. is capable of dispersing an oil-in-water or water-in-oil to produce a homogeneous emulsion that is stable for least 5 minutes. 21. The stable emulsion of claim 18, wherein the emulsion is an aqueous emulsion. 22. The stable emulsion of claim 18, wherein the emulsion exhibits substantially no phase separation by visual inspection for at least 5 minutes after mixing the isolated water-insoluble/water dispersible protein fraction with the oil. 23. The stable emulsion of claim 18, wherein the emulsion comprises from about 1% to about 50% (w/w) of an oil. 24. The stable emulsion of claim 21, wherein the emulsion comprises from about 1% to about 50% (w/w) of an oil.
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