A review article: economically important plants of essential oil yielding plants
Geetika Singh, Richa Puri
The importance of plants are discussed with reference to their value as a source of sustenance: food, sugars, starches, spices and condiments, beverages, fumitories, masticatories and narcotics, medicines, essential oils, fatty oils and vegetable fats, waxes, soap substitutes, vegetable ivory, fodder, fuel, bioenergy or biofuel, fertilizers, fiber, pulp and paper, tannins, dyes, rubber and other latex products, gums, resins and cork. Essential oils are a class of vegetable oils which have complex mixtures of organic substances. They are terpene derivatives, phenyl propanoids, hydrocarbons and straight chain compounds. Essential oils are by products of plant metabolism rather than reserve food.