Food Tech - Chapter 3-7 Revision Flashcards
Legumes
Pod-bearing plants such as chickpeas or lentils.
Nuts
The edible kernel of dried fruits from some trees and plants. They are enclosed in a hard shell.
Pulses
The edible seeds from plants belonging to the legume family that are harvested solely for the dry grains found within their pods.
Seeds
Nuts that grow like seeds inside a large woody pod or cone.
Tree Nuts
Have a hard outer shell and a fleshy centre or endosperm.
Protein
Made up of amino acids. Proteins are essential for many bodily functions in the body.
Collagen
A structural protein in meat, it forms gelatine when heated in water.
Denaturation
The permanent structural change in the protein molecules in food. This can occur through the application of heat, mechanical action or the addition of acid.
Coagulation
A permanent change in protein from a liquid into a thick mass as the result of heat or the addition of acid. Eg Custard
Ground nuts
The seed of a tropical legume that grows underground.
Dextrinisation
The process that occurs when starch is exposed to dry heat, the starch is broken down into dextrin, resulting in a change in colour to golden brown.
Caramelisation
The process that occurs when sugar solutions or the sugars in fruits are strongly heated. These sugars are converted to a brown substance and are said to have ‘caramelised’. Eg-Onions Browning from heated fry pan.
Maillard Reaction
Occurs when sugars or starch, and a protein are present in food. The application of dry heat develops a golden brown colour on the surface of the food. Eg-Chicken Patties.
Enzymatic Browning
The process that occurs when the enzymes in cut or peeled fruit cause browning when exposed to the oxygen in the air.
Pectin
A polysaccharide, with gum-like properties, which is found in the cell walls of fruit. It is released on cooking and reacts with sugar and acids to form a gel in jams and jellies.