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Water-soluble polymers are released from the extracellular matrix of Botryococcus braunii by thermal pretreatment prior to hydrocarbon extraction. In this study, hydrocarbon recovery was reduced by adding polymers to algal slurries from which they were previously washed. The water-soluble polymers are amphiphilic and emulsify the water–organic solvent systems used in hydrocarbon extraction. To obtain...
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