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Summary: Teepol, a modern anionic detergent, has been investigated and used in culture media for organisms of the coli-typhoid group, in substitution for bile salts. Media containing 0·1 % Teepol and an indicator of the sulphonphthalein group have been found to possess advantages over MacConkey’s medium. While bile salts as marketed are costly and variable in their bacteriological properties, Teepol is cheap and reliable.
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Jameson et al. (1956) studied this question.
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