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THE RAW AND THE COOKED |
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The influence of temperature on the colour of meat
Different portions of minced meat are warmed up in a hot water bath to different temperatures from 50 to 80 °C and immediately cooled down in iced water. The meat is filtered and the colour of the supernatant is evaluated.
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Better milk for cats |
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Immobilised lactase used to make lactose-reduced milk
This simple practical investigation introduces students to the principles of digestion and enzyme immobilisation.
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More juice from apples |
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Pectinases and cellulases can be used to enhance the yield of juice from apples and similar fruits
A simple practical protocol, allowing students to investigate how enzymes may be used to enhance the yield of fruit juice from apples and similar fruits.
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A DNA pendant |
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Crude extraction of DNA from human cheek cells
This protocol describes the crude extraction of DNA from human cheek cells. The DNA may be placed in a pendant to be worn round the neck.
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Ginger beer |
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A refreshing, fermented low-alcohol drink
This recipe-based procedure can be used to introduce younger students to the principles of fermentation, food hygiene (a precursor to aseptic technique) and the biochemistry of respiration. There are also opportunities for more challenging problem-solving activites, some of a technological nature.
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