Polymeric substance and method of separating and culturing bacteria
US5250201A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 19, 1991 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Feb 19, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/936
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.