Meat

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  • Meat
    • tenderising meat
      • cut into small pieces to shorten the muscle fibres
      • beat with a hammer to separate muscle fibres
      • hang it
      • marinade it with wine/lemon juice/ vinegar
      • use enzymes (e.g. papain from papaya or bromeliad from pineapples)
    • reasons for toughness
      • long muscle fibres (can be if the animal was old)
      • the meat if was from muscles that had the most movement (e.g. the neck or shoulder)
        • they have a lot of connective tissue which makes it tough
      • incorrect cooking methods (e.g. dry cooking for a tough cut)
      • frozen meat not defrosted before cooking
    • changes during moist methods of cooking (e.g. stewing, boiling, steaming)
      • collagen (which is insoluble) is converted to gelatine which is soluble
      • moisture penetrates between the muscle fibres
      • elastin softens slightly and protein coagulates at 40-60"c
      • meat becomes firmer
      • fibres fall apart and meat extractives are squeezed out
      • fat melts
      • the colour changes from red to brown as the oxymyoglobinchanges to haemochrome
    • keywords
      • tendons: joins the muscle to the bones of animals
      • connective tissue: the creamy white tissue which holds together the bundles of muscle fibres
      • collagen; the protein in connective tissue, in and around the muscle fibres and tendons
      • elastin: a protein mostly found in the ligaments which joins two bones together
    • NUTRIENTS
      • Protein- for groth and repair
      • fat - for energy, insulation, protection of internal organs and production of cell membranes
        • fat soluble vitamins... vitamin A + D
          • vitamin A is for production of visual purple and healthy skin, vision in dim light and formation of mucous membranes
      • phosphorus  - maintenance and strengthening of bones and teeth
      • thiamin - release of energy from carbohydrate,protein and fat
      • iron - for the formation of haemoglobin which transports oxygen round the body
      • water
    • Offal
      • the entrails and internal organs of an animal that is used at food
        • liver
        • kidneys
        • heart
        • brain
    • Red meat and white meat
      • red meat is pork, beef, and lamb
      • white meat is poetry like chicken, duck goose and turkey

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