Extracting Oils from Plants

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biology unit 1 gcse
oliviaoneill90
Mind Map by oliviaoneill90, updated more than 1 year ago
oliviaoneill90
Created by oliviaoneill90 almost 10 years ago
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Extracting Oils from Plants
  1. Some fruits and seeds contain a lot of oil
    1. Oily fruits: - avocados - olives
      1. Oily seeds: -brazil nuts -peanuts -sesame seeds
        1. These oils can be extracted by crushing the plant material, pressing them between metal plates and squashing the oil out to be used for food or fuel. This is the traditional method for olive oil
        2. Oil can be separated from crushed plant material by a centrifuge - like using a spin-dryer to get water out of wet clothes
          1. solvents are used to get oil from plant material
          2. Distillation refines oil, and removes water, solvents and impurities
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