Acids and Alkalis

Description

GCSE Food Tech Mind Map on Acids and Alkalis, created by Hannah Fowkes on 26/02/2015.
Hannah Fowkes
Mind Map by Hannah Fowkes, updated more than 1 year ago
Hannah Fowkes
Created by Hannah Fowkes over 9 years ago
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Resource summary

Acids and Alkalis
  1. Acidity or alkalinity of food is measured on the pH scale, which runs from 1 to 14.
    1. Acidity or alkalinity affects: the taste of final product the rate at which microorganisms grow within and upon food
      1. Neutral foods
        1. pH value of 7
          1. neither acid nor alkali
            1. Pure water
            2. Acids
              1. Acidic fruits mixed with milk or cream will casue the mixture to curdle
                1. Used in no-bake cheesecake
                2. Adding vinegar to meringue mixture will give it a soft texture
                  1. Lemon juice helps prevent fruits like apples from discolouring
                  2. Alkalis
                    1. Bicarbonate of soda acts as a raising agent during baking
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