Polymeric substance and method of separating and culturing bacteria
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United States of America Patent
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Oct 5, 1993
Issued Date -
N/A
app pub date -
Feb 19, 1991
filing date -
Jul 29, 1982
priority date (Note) -
Expired
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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.
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