Site Wide Glossary

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M

Magnetic permeability

Ability to be magnetised or attracted by a magnet.

Mammal

A warm blooded animal.

Mammary secretion

Milk that comes from the mammary gland of a female animal feeding her young.

Mastitis

Infection of the mammary glands by bacteria.

MCC

Motor Control Centre.

Mechanical energy

When some sort of force is used to help remove soils. Scrubbing, high-pressure sprays, spray balls and nozzles, and the flow of cleaning solutions in pipework are all examples of mechanical energy. Also known as “kinetic energy”.

Media

In relation to testing, media is the substance the microorganisms are grown on.

Medium

A means by which something is achieved. For example, a heating medium is used to heat product, and a cooling medium is used to cool product.

Melting point

The temperature something melts at.

Membrane

It is a type of filter used to separate a liquid into two streams (retentate and permeate). Membranes can have different sizes to separate specific components of milk and whey.

Metallic taste

An oily, tallow taste caused by oxidation of milkfat in butter.

Metallised

To coat with a thin layer of metal.

MF

It stands for microfiltration. It separates dissolved and non-dissolved components through an open structure membrane using low pressure. It is used to remove bacteria.

Micelles

These are particles that clump together in a colloidal suspension.

Microbe

Sometimes used instead of microorganism, but usually means just bacteria.

Micrometers (µm)

A measurement of distance that is used for very small distances. 1 µm is 1 x 10-6m or 0.000,001 m long (one-millionth of a meter or one-thousandth of a millimetre). Microorganisms are this small, which is where the name “micro” in microorganism comes from. The common term for micrometre is micron.

Microorganism

A tiny organism such as a virus or bacteria that can only be seen under a microscope. Some microorganisms can make you sick.

Minerals

Something that is not made of animal or vegetable matter. An example is the salt in seawater.

Minimise

Reduce the risk of the hazard hurting you, for example, wearing earmuffs when working in a noisy place.

Ministry for Primary Industries (MPI)

Ministry for Primary Industries; the government department responsible for food safety in New Zealand.

MNFS

It stands for Moisture in non-fat substance. It is the percentage moisture on a fat-free basis:

MNFS

MOM

Manufacturing Operations Management.

Mould

A type of fungus that has multicellular (many celled) organisms.

Mould cured or mould ripened cheese

A cured cheese in which the curing has been completed mainly by the development of characteristic mould growth throughout the interior and/or on the surface of the cheese.

MPC

Milk Protein Concentrate. Both these and milk protein isolates are manufactured by a process in which casein and whey proteins are isolated in their native state from fresh skim milk.

MPI

Ministry of Primary Industries. 

Milk Protein Isolates.

MSNF

Milk Solids Non-Fat.

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