Microbial encapsulation 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
CA1301682 C 1992-05-26 [CA1301682] / 1992-05-26
申请号/申请日
1987CA-0534451 / 1987-04-10
发明人
PANNELL NAHIDA A;
申请人
AD2;
主分类号
IPC分类号
A01N-025/28A23L-027/00A61K-009/50A61L-009/12B01J-013/02C12N-001/00
摘要
(CA1301682) A method of producing an encapsulated material comprises treating a grown intact microbe such as a fungus, bacterium or alga by contiguous contact with an encapsulatable material in liquid form.  The microbe has a microbial lipid content of significantly less than 40% by weight.  The encapsulatable material is capable of diffusing into the microbial cell without causing total lysation thereof.  The treatment is carried out in the absence of an organic lipid-extending substance (as defined in European Patent Specification No. 0085805B) as solvent or microdispersant for the encapsulatable material and in the absence of a plasmolyser, whereby the material is absorbed by the microbe by diffusion across the microbial cell wall and is retained passively within the microbe.
机翻摘要
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地址
代理人
代理机构
;
优先权号
1986GB-0008964 1986-04-12
主权利要求
(CA1301682)  THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS: 1. Method for the production of a microbially encapsulated material, comprising: treating a grown intact microbe having a microbial lipid content of less than 40% by weight, with an encapsulatable material in liquid form which is capable of diffusing into the microbial cell without causing total lysation thereof, said treatment comprising contiguously mixing the microbe with the encapsulatable material liquid in the presence of an aqueous medium to produce an aqueous emulsion of the encapsulatable material liquid and to maintain the aqueous emulsion during the mixing, whereby the encapsulatable material liquid is absorbed by the microbe by diffusion across the microbial cell wall and the encapsulatable material is retained passively within the microbe, the method being performed in the absence of treatment of the microbe with a lipid-extending substance or a plasmolyser. 2. Method according to claim 1 wherein the microbe is selected from fungi, bacteria and algae. 3. Method according to claim 1 wherein the microbe is a fungus having a lipid content of up to 5% by weight. 4. Method according to claim 3 wherein the microbe is a fungus having a lipid content of up to 3% by weight. 5. Method according to claim 1, 2 or 3 wherein the microbe is a yeast. 16 6. Method according to claim 1, 2 or 3 wherein the microbe is selected from Saccharomyces cerevisiae, Candida utilis, Aspergillus niger and Kluyveromyces fragilis. 7. Method according to claim 1, 2 or 3 wherein the microbe is alive at the commencement of the contiguous mixing. 8. Method according to claim 1, 2 or 3 wherein the microbe has an average cell diameter of greater than 5 microns. 9. Method according to claim 1, 2 or 3 wherein the encapsulatable material has a benzene or a naphthalene ring. 10. Method according to claim 1, 2 or 3 wherein the encapsulatable material is selected from benzaldehyde, essential oils used in flavours or fragrances, pheromones, organophosphorus insecticidal compounds, leuco dyes, menthol, lauryl ether sulphate, alphachloralose, dichlorophen, onion extract, oil of wintergreen, and water-soluble food colourants. 11. Method according to claim 1, 2 or 3 wherein the encapsulatable material is an essential oil selected from garlic, clove, mint, peppermint, lavender, cedar and eucalyptus oils. 12. Method according to claim 1, 2 or 3 wherein the contiguous mixing is performed at an elevated temperature in the range 35[deg.]C to 60[deg.]C, at least during the initial stage of the mixing. 17 13. Method according to claim 1, 2 or 3 wherein the treatment is performed for a time until the desired optimum amount of one or more globules of the material can be observed (microscopically) within the microbial cell. 14. Method according to claim 1, 2 or 3 wherein the resulting microbial capsule is harvested and then subjected to heat-treatment. 15. Method according to claim 1, 2 or 3 wherein the microbe is a filamentous fungus. 16. Method according to claim 1, 2 or 3 wherein the resultant microbially encapsulated material is separated from the residual method ingredients by spraydrying. 17. A microbial capsule being a grown intact microbe selected from fungi, bacteria and algae, having a microbial lipid content of less than 40% by weight and having encapsulated therein a material which has been absorbed by the microbe by diffusion across the microbial cell wall as a result of contiguously mixing the microbe with the encapsulatable material in liquid form in the presence of an aqueous medium to produce an aqueous emulsion of the encapsulatable material liquid and to maintain the aqueous emulsion during the mixing, in the absence of treatment of the microbe with a lipid-extending substance or a plasmolyser. 18 AAS/ML - ADL 1121
法律状态
(CA1301682) LEGAL DETAILS FOR CA1301682  Actual or expected expiration date=2009-05-26    Legal state=DEAD    Status=EXPIRED     Event publication date=1987-04-10  Event code=CA/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=CA CA534451  Application date=1987-04-10  Standardized application number=1987CA-0534451     Event publication date=1992-05-26  Event code=CA/C  Event indicator=Pos  Event type=Event indicating In Force  Patent (published from 16.10.1990 onwards)  Publication country=CA  Publication number=CA1301682  Publication stage Code=C  Publication date=1992-05-26  Standardized publication number=CA1301682     Event publication date=2009-05-26  Event code=CA/MKLA  Event indicator=Neg  Event type=Event indicating Not In Force  Lapsed    Event publication date=2009-05-26  Event code=CA/EEDX  Event indicator=Neg  Event type=Event indicating Not In Force  Patent has expired    Event publication date=2012-12-05  Event code=CA/MKEC  Event indicator=Pos  Event type=Event indicating In Force  Event type=Restitution or restoration  Event type=Corrections  Expiry (correction)
专利类型码
C
国别省市代码
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