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Glossary of Filtration Technologies: M

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Magnetic flow meter
A magnetic flow meter is applied to the metering tube, which results in a potential difference proportional to the flow velocity perpendicular to the flux lines. Our sister company GEA Diessel is a leding supplier of magnetic flow meters.
Maltodextrin
Maltodextrin is a moderately sweet polysaccharide. Maltodextrin is produced from different starches (such as corn, tapioca, rice, potatoes etc.) and is usually found as a creamy white hygroscopic powder.
Matrix piping
Matrix piping utilizes mix-proof valve technology to enable simultaneous functions of process (liquid product transfers, etc.) and CIP/SIP (cleaning-in-place / sterilization-in-place) in a totally contained "hard-piped" and fully automated fashion, making each operation robust and reliable. Properly integrated in targeted applications, this technology will increase efficiency & asset utilization, improve conditions for personnel & product safety and minimize manual interventions.

GEA Process Engineering Segment has a global perspective and a long history in successfully delivering matrix piped systems with the resulting benefits for new and/or existing plants in the food, food ingredients, dairy, beverage, brewery, pharmaceutical, biotechnology, and personal care industries. Our sister-company GEA Tuchenhagen is the leading supplier of mix-proof valves (VARIVENT® Valves) - the core component for matrix-piped process plants. VARIVENT® Valves are operationally reliable, easy to maintain and suitable for CIP/SIP operations. They contribute significantly to the highest quality and consistency in the product. Low operational, maintenance and service costs enable economical plant productivity.
Mammalian Cell Culture
The mammalian cell culture technology is to artificially cultivate cells, of mammal origin, in a laboratory or on a production-scale. It can be either a batch or continuous process (although most fermentors and bioreactors are batch systems). The first mammalian cell culture was successfully grown by a neurobiologist named R. G. Harrison in 1907.
Membrane
Term used to refer to the semi-permeable barrier which can separate a multi-component stream into fractions.
Membrane Area
The effective wetted membrane contact area available during the cross flow filtration process.
Micro Filtration (MF)
A separation process using membranes which the pore size is more open, such that salts and sugar molecules will pass through. A pressure driven membrane process which rejects large molecules in the range > 0.1 microns. Typical processes might be chemical reclaim, salt brine clarification, dextrose clarification, etc.
Micron
A factional unit of measure-one millionth of the desired unit. Filtration systems typically uses the micrometer as a measurement.
Micron Cutoffs
The size reference where discussion transfers from molecular weight to actual size of product.
Microparticulation
The microparticulation process is one that dates back to about 1000 b.c. The ancient Apicius cookbook detailed a mixture of eggs, milk, and honey that formed a custard-like gel (tyropatinam*) that was eaten along with cheese.** Microparticulation create a "creamy" sensation and a fat like texture when eaten. Microparticulated whey proteins behave like fats and can be used as fat substitutes in many different products. GEA Filtration in Denmark has developed a new simple unit for microparticulation of whey proteins. The unit, named Micro Formula™ is easy and inexpensive to maintain and comes in standardized modulus. Click here to access additional information about the GEA Filtration Micro Formula™ microparticulation system.

*Tyropatinam (A Kind of Soufflee) ingredients: 500 ml milk, 6 eggs, 3 tblsp honey, a little bit of ground pepper - sweeten the milk with honey, add eggs and mix together until smooth. Cook on low heat until stiff, sprinkle pepper on it and serve - Source http://www.pompeii.org.uk/ri.php/recipe-tyropatinam-a-kind-of-soufflee-en-105-ri.htm
**Source: http://www.madehow.com/Volume-2/Fat-Substitute.html (Evelyn S. Dorman)
Milk acidity test
milk quality test that measures lactic acid.
Milk adulteration
addition of other substances to milk which reduces the quality of the milk (e.g. water).
Milk Protein concentrate - (MPC)
A process utilizing Ultra Filtration (UF) where-in the Lactose is removed from the milk leaving the concentrated Casein and Serum proteins. Typically used in baby formulas, processed cheese, etc.
Milk Standardization
making milk with constant butterfat through partial skimming.
Milking Machines
Machinery used by dairy farmers to milk the cows. Electronic milking machines use a pulsating vacuum that simulates the effect of a suckling calf. Our sister-company GEA WestfaliaSurge is a leading supplier of milking machines.
Molecular sieve
A molecular sieve is a material with tiny pores of an even size and shape which can be used as an absorbent for liquids and gases. Small molecules which can pass through the pores are absorbed while the larger molecules are not. It is different from a common filter in that it operates on a molecular level. A molecular sieve can absorb water up to 22% of its own weight. For further information please access http://en.wikipedia.org/wiki/Molecular_sieve
Molecular Weight cut off (MWCO)
Molecular weight cut-off or cut-off value, defined as that molecular weight, where the membrane will reject 90% of the solutes.
Mozzarella cheese
Mozzarella is a generic term for the numerous different kinds of Italian fresh cheeses. Typically it is a mild white Italian cheese made from cow's milk; often used on pizza and in other pasta dishes. GEA Filtration design microfiltration systems for recovery of dairy solids from the cooker/stretcher water.
MTBE
MTBE, or methyl tertiary-butyl ether, is created from methanol and can increase octane and decrease the volatility of petroleum. It is often used as a petroleum additive because it raises the oxygen content of the fuel.
MWFPA - Midwest Food Processors Association
The Midwest Food Processors Association (MWFPA) works to save its members time and money. MWFPA works in the areas of government relations, issue advocacy and representation, education and networking, information access and problem solving in many functional areas. GEA Filtration (GEA Process Engineering Inc.) is an associate member of the Midwest Food Processors Association. Also, GEA Filtration exhibits at the Midwest Food Processors Association Convention & Expo.
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GEA Filtration • Hudson, WI 54016, US • Telephone: + 1-715-386-9371 • Telefax: + 1-715-386-9376 • Email: info@geafiltration.com
GEA Filtration • Skanderborg, Denmark • Telephone:+ 45 70 15 2200 • Telefax:+ 45 70 15 2244 • Email: info@geafiltration.dk
GEA Filtration • Ettlingen, Germany • Telephone: +49-7243 7050 • Telefax: + 49-7243 7053 30 • E-mail: info@geafiltration.de
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