The Pulsifier from Microgen Bioproducts is now included in ISO 7218:2007(E), Microbiology of food and animal feeding stuffs.
The Pulsifier produces samples more suitable for rapid microbiology methods, as processed samples feature less food matrix destruction and a cleaner aqueous phase, which is shown to make filtration and pipetting easier, minimising interference with PCR or flow cytometry techniques.
ISO 7218:2007(E) states the Pulsifier is suitable for most foodstuffs including sharp, hard or dry foods which peristaltic homogenisers (Stomacher) are not suitable for use with, due to bag breakage.
ISO 7218:2007(E) also states the Pulsifier has a quick run-time of 0.5-1min but evaluations have shown that there is no increase in bacterial recovery after 15s, making the Pulsifier a fast and versatile instrument for microbiological sample preparation.
