Some alkaliphiles like Bacillus strains produce enzymes proteases and lipases which are stable at high temperature at alkaline pH in the presence of detergent. Therefore, these are used in some laundry detergents to clean fat and proteinaceous stains. It is interesting to note that Clostridium paradoxum can withstand pH greater than at 55°C and its optimal generation (doubling) time is 13 minutes at pH 9.3.

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