Define Psychrotrophic bacteria

Hi, Milkfans

These bacteria occur naturally in cold places like the Arctic.

They are important in frozen and refrigerated food where they can cause spoilage – even with the cold chain being maintained.

Examples are mould like Penicillium and bacteria like Pseudomonas, Bacillus and Clostridium.

They are an increasing problem in the dairy industry where the cold chain is maintained for longer periods on raw milk, than ever before in history.


Leon the Milkman


What Are Bacteria? DVD

About Leon the Milkman

Leon the Milkman has a B.Sc majoring in Food Science And Chemistry. Having had stints in most food industries, his love for dairy won and he has been working in the dairy industry in the Western Cape Province of South Africa since 1997. He is a Research Tech. and presents regular Cheese and Yoghurt Making Courses.
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