Not Delia

Tag: Science

  • How bacteria behave

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    As we’ve seen in the earlier articles in this series, there are a number of different types of food poisoning bacteria. These bacteria can cause food poisoning in different ways, depending on the behaviour of the type of bacteria. There are three main ways in which bacteria can act to cause food poisoning. – Some…

  • Staphylococcus aureus

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    This is associated with food being contaminated by toxins from the food handler’s nose and throat. Coughing, sneezing, and actions such as blowing into piping bags can spread these germs. Also face touching (Yuk! And see how often Gordon Ramsay does this) can spread the germs. Tasting food and putting the spoon back in is…

  • Common Forms of Food Poisoning Bacteria

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    The most common forms of food poisoning bacteria are: Salmonella Clostridium perfringens Staphyloccus aureus Bacillus cereus Campylobacter jejuni Listeria monocytogenes E. coli We will look at each of these in turn in the next articles of this series.   This is Chapter Two, Part Five in a series of articles broadly similar to the course…

  • How bacteria grow

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    We’ve looked at the basic types of bacteria. Now it’s time to look at where they can crop up. What situations encourage bacteria to grow? Bacteria are living organisms and they need four things to grow and multiply: food moisture warmth time Some foods which are high in protein, rich in nutrients, and contain moisture…

  • Bacteria – introduction

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    Urgh! Germs. Bacteria are tiny living organisms which are so small you can’t see them without a microscope. If you do see them through a microscope they are usually round or rod-shaped. They’re often called “germs” in everyday language. Bacteria are everywhere – in the soil, dust, water, in the air, and on our bodies.…

  • Sources of Food Poisoning

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    Food poisoning is caused by contaminated food. So what causes food to be contaminated? bacteria viruses other poisons Bacteria Bacteria are small living organisms, too small to see with the naked eye. They multiply like crazy on food that’s not prepared or stored properly. But these little beasts, bacteria, are by far the most common…