Carotenoids are the compounds responsible for yellow, orange and red colours in many fruit, vegetable and algal sources. Within each source, carotenoids vary in concentration, proportions and chemical structure, all of which influence how it can be used in a food product.
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
Heat is a form of energy that results in the motion of molecules. Heat travels by conduction, convection, or radiation. In conduction, heat spreads through a solid by making its molecules vibrate faster.As faster molecules bump slower ones, the slower ones are made to vibrate faster, and the solid becomes hotter.eat is a form of energy that results in the motion of molecules. Heat travels by conduction, convection, or radiation. In conduction, heat spreads through a solid by making its molecules vibrate faster.