A drilling fluid comprising a pyruvate-free xanthan, which may be an acetate-free pyruvate-free xanthan, and a high density calcium-based brine. Preferably the pyruvate-free xanthan is a genetically prepared pyruvate-free xanthan. A process for recovering crude oil from an oil-bearing subterranean formation by drilling the formation and using a drilling fluid comprising a pyruvate-free gum and a high density calcium-based brine.

 
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< Dextrose-based lozenges and process for their manufacture

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> Corn oil processing and products comprising corn oil and corn meal obtained from corn

> Bacterial strains and use thereof in fermentation processes for 2-keto-L-gulonic acid production
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