 Synthetic method |
| What is claimed is: 1. A process for the preparation of the compound AQ4 of formula 3: ##STR16## or ... |
|
| Process of enzymatic conversion of polysaccharides |
| OF THE INVENTION The B. megaterium is preferably that strain deposited in the National Collection ... |
|
| Urea silicon product and uses thereof |
| What is claimed is: 1. The hydrolyzate of: ##STR20## 2. The hydrolyzate of: ##STR21## 3. The ... |
|
| Aqueous size for glass fibers |
| We claim: 1. Aqueous composition for the coating of glass fibers, characterized in that it ... |
|
| Novel vulcanizable silane-terminated polyurethane polymers |
| What is claimed is: 1. A process for producing vulcanizable, dihydrocarbyloxysilyl-terminated ... |
|
| Glass coating with improved adhesion and weather resistance |
| OF THE INVENTION The instant invention pertains to a composition for coating glass which is the ... |
|
| Fully alkoxysilane-functionalized aliphatic polyamine compounds |
| OF THE INVENTION As used herein the term "fully alkoxysilane-functionalized" is intended to ... |
|
| Process for producing nitrile |
| OF THE PREFERRED EMBODIMENTS In formulae (1) and (2), the group represented by R contains 3 to 20 ... |
|
| Process for the production of gamma-butyrolactone |
| OF THE DRAWINGS Referring to FIG. 1 of the drawings, maleic anhydride is supplied in line 1 to an ... |
|
| Transgenic animal assay system for anti-cholinesterase substances |
| The present invention provides a transgenic animal assay system which provides a model system for ... |
|
|
Cyanobacterium-produced bioemulsifier composition and solution thereof
| Details |
Inventors: Shilo, Moshe; Fattom, Ali;
Assignee: Solmat Systems, Ltd. (Yavne, IL); Yissum Research Development Company of the Hebrew University of Jerusalem (Jerusalem, IL)
Primary Examiner: Lovering; Richard D.
Assistant Examiner:
Attorney, Agent or Firm: Sandler & Greenblum
J-1 which is a strain of cyanobacteria is used to form and excrete a material useful as an emulsifying agent for forming emulsions of hydrocarbons and oils in liquids such as water. Method of separating and culturing the cyanobacteria under conditions necessary to achieve a maximum formation and excretion of the emulsifying agent into solution. Method of purifying and separating excreted as well as intracellular material from cyanobacteria. Method of removing stains with a material excreted by cyanobacteria, and particularly strain J-1. Method of effecting the secondary recovery of petroleum through the use of a material excreted by cyanobacteria, and particularly strain J-1. Extracellular polymeric material which is greater than 200,000 Daltons in molecular weight, and contains sugar, fatty acid, and protein moieties, and amide, carboxylic and amino groups. |
|
DETAILED DESCRIPTION It is an object of the invention to provide a process for the production of a novel emulsifying agent, useful in the emulsification of hydrocarbons and oils.
The objective of the invention is achieved through the use of cellular products of a benthic filamentous cyanobacterium of Phormidium genus in the family Oscillatoriaceae.
This strain has been found to exist in a portion of the Jordan river, where it was noticed that the water seemed to be clarified of its particulates, as discussed in patent application Ser.
No.
634,535, filed July 26, 1984, and now U.
S.
Pat.
No.
4,649,110, of which this application is a continuation-in-part.
One particular bacterial strain of Phormidium useful in the invention has been denominated as J-1.
J-1, is, in effect, a definite strain of an undefined species of the Phormidium genus.
A specimen of this organism has been deposited with the American Type Culture Collection in Rockville, Md.
, and has been assigned ATCC No.
39161.
This strain has a generation time of 24-48 hours, and under the carefully controlled conditions of the invention, the organism produces and excretes a polymeric bioemulsifying material which is useful in achieving the objectives of the invention.
The polymeric bioemulsifier can also be secured from the bacterial cells themselves, by rupturing the cells and then isolating the bioemulsifying agent.
The organisms of the invention are found naturally in certain fresh water bodies.
These organisms can be collected and removed from the water for culturing, according to the inventive technique, by adding nonpolar hydrocarbons into the water containing the bacteria, and agitating the water to disperse the hydrocarbon into globules, as described in U.
S.
application Ser.
No.
634,535, now U.
S.
Pat.
No.
4,649,110 discussed above.
Because benthic bacteria (including members of the Phormidium genus) are hydrophobic, the bacteria become attached to the dispersed globules of hydrocarbon.
The hydrocarbon is collected as it floats to the water surface, and the bacteria can then be separated from the hydrocarbon and grown under laboratory conditions
|
| Related patents |
|
|
Process for the production and extraction of polysaccharides from a porphyridium cruentum culture and apparatus for performing the process
We claim: 1. Process for producing and extracting polysaccharides from a culture of the microalga porphyridium cruentum comprising the steps of concentrating ...
|
|
|
Process for producing biotin vitamers using novel microorganisms
We claim: 1. A process for producing biotin vitamers which comprises (a) cultivating in a nutrient medium a mutant strain of E. coli having (i) a glucose consumption ...
|
|
|
Process for the production of polysaccharide
We claim: 1. A process for the production of polysaccharide consisting of a partially acetylated variable block copolymer of D-mannuronic and L-guluronic acid residues, ...
|
|
|
Method for screening microorganisms for the production of amylolytic enzymes
OF THE INVENTION One criterion of strain improvement is a change in the activity and/or amount of a particular enzyme produced by an organism. In general a screening ...
|
|
|
Process for obtaining glucose-isomerase
We claim: 1. Process for producing glucose-isomerase, which comprises culturing continuously or discontinuously, under aerobic conditions, a strain of the species S...
|
|
|
Method for the preparation of sorbic acid by oxidizing 2,4-hexadienal with a microorganism
OF THE PREFERRED EMBODIMENTS The microorganism utilizable in the present invention is a microorganism belonging to either one of the above named various genuses and ...
|
|
|
Citric acid producing mutant yeast strains
What is claimed is: 1. A biologically pure culture of mutant yeast strain, Candida zeylanoides ATCC 20391, exhibiting growth substantially inferior to that of its parent ...
|
|
|
Process for preparing L-glucosone
We claim: 1. A process for oxidizing L-glucose to L-glucosone which comprises contacting L-glucuose with glucose-2-oxidase produced by a microorganism selected from the ...
|
|
|
Preparation of antibiotic LL-D05139.beta. from cultures of Glycomyces harbinensis, gen. nov., sp. nov.
OF THE INVENTION The new antibacterial agent designated LL-D05139.beta. is formed during the cultivation under controlled conditions of a new strain of a new genus and ...
|
|
|
Assay for tumor promoting agents
We claim: 1. A test process for identifying a composition of interest as being within the class consisting of tumor promoters, agents having tumor promoting activity, ...
|
|
|
Molecular Biology 
