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Chementator: Microbial contamination — see it and believe it

By Chemical Engineering |

In Anaheim, Calif., last month at the Parenteral Drug Assn.’s annual meeting, Pall Corp. (East Hills, N.Y.; edlinks.chemengonline.com/5829-539) introduced Ascotec to the global market, a faster, more accurate system for detecting microbial contamination in clean-room air systems. When compared to Pall’s Ascotec, other monitoring technologies have two disadvantages, says Christopher J. Mach, marketing manager of biotechnology at Pall: they do not readily distinguish between true contamination that is captured from the clean-room air system versus erroneous contamination that is introduced within the monitoring system by an external source such as an operator; and, they impose more physical stress on microorganisms making true contamination harder, if not impossible, to detect. Operating at a low velocity of 11 L/s, compared to 50 L/s in other samplers, Ascotec’s BioCapt impactor sampling technology maintains a high collection efficiency while avoiding severe stress to microorganisms. “With less stress to the organisms, it is possible to achieve faster microbial growth,” says Mach. This means faster contamination detection. Meanwhile, an array of precise rectangular slits (photo), exactly 90 µm wide,…
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