Berkefeld filter

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Berkefeld filter

[′berk·ə‚feld ‚fil·tər]
(microbiology)
A diatomaceous-earth filter that is used for the sterilization of heat-labile liquids, such as blood serum, enzyme solutions, and antibiotics.
References in periodicals archive ?
Wilkinson (28) comento que las investigaciones de aquella epoca concluyeron que el agente de la peste o influenza aviaria pasaba sin dificultad por los filtros Berkefeld, y en vista de que no era una sustancia disuelta o meramente toxica, debia ser considerado como un verdadero virus que se multiplica en el hospedero o como una "bacteria ultrapequena".
Para zanjar la controversia, la reciente Comision de la Fiebre Amarilla creada por el Gobierno americano, probo mediante sus investigaciones en Cuba, que la sangre de las personas que padecian fiebre amarilla contenia un agente muy pequeno que se colaba por el filtro Berkefeld y que el suero filtrado habia inducido la misma enfermedad en personas no inmunes.
43) De manera equivocada, Olitsky habia "demostrado" que se podia cultivar el TMV en pulpa de tejidos enfermos y macerados, la cual despues de una doble filtracion por el filtro Berkefeld, supuestamente incrementaba su potencia y virulencia tras un periodo de incubacion por 7 dias a 30[grados] C.
Sterling Berkefeld is a company with German roots that has been manufacturing water treatment equipment for over 100 years, mostly for the international brewing industry.
For the beverage industry, Sterling Berkefeld can offer solutions for removal of colloids and turbidity, manganese and iron, color, microbial contamination, hardness, chlorine and ozone, flourine and arsenic, silicic acid, trihalomethanes, unwanted odors, unwanted tastes, and nitrates.
De Angelo Nedd of El Camino Real (5-4-1, 4-3), running behind his offensive line of Steve Lucas, Brian Berkefeld, Shaheen Jahangard, Jeremiah Shattuck and Lance Hultin, pounded the Chatsworth defense for 186 yards and a touchdown.
Guresir E, Schuss P, Berkefeld J, Vatter H, Seifert V.
Second, he found that the tumor-inducing factor could be passed through a Berkefeld ultrafilter known to retain bacteria.
In partnership with Wetico Saudi Berkefeld, the recently-launched Shoaiba Barge SeaWater Reverse Osmosis (SWRO) plant in Saudi Arabia is projected to be the country's first large-scale reverse osmosis seawater desalination plant and the world's largest sea-based desalination plant.
In partnership with WETICO Saudi Berkefeld, the recently-launched Shoaiba Barge SeaWater Reverse Osmosis (SWRO) plant in Saudi Arabia is projected to be Saudi ArabiaCOs first large-scale reverse osmosis seawater desalination plant and the worldCOs largest sea-based desalination plant.
Foerch C, Otto B, Singer OC, Neumann-Haefelin T, Yan B, Berkefeld J, et al.