A work breakdown structure, or WBS, is a model that can be used for this purpose. In this model you devide the workload in the named phases and appoint the needed area's, tasks and activities under thes phases.
While there are many ways to describe what antioxidants do inside the body, one definition of antioxidants is any substance that inhibits oxidation, especially one used to counteract the deterioration of stored food products or removes potentially damaging oxidizing agents in a living organism.
Vegetable oil is an oil derived from vegetables or plants, such as corn, olive, sunflower and rapeseed. Vegetable oil consists of fatty acids, including linoleic, palmitic, oleic, etc. Vegetable oil can spoil and turn rancid, which is why anti-oxidants have to be added.