Abstract
Because of the world energy crisis, many countries have initiated a series of measures to resolve this problem through alternative energy resources. Biodiesel as an alternate fuel has received much attention in recent years. A number of reports are available on the production of biodiesel from vegetable oils and related sources but its production from microalgae is a highly prospective field. Microalgae can produce and accumulate lipids within their cells. These lipids on transesterification yields biodiesel. Hence, microalgae have the capacity to produce more biodiesel per acre land than any other plants or living organisms. This manuscript deals with chemical and biochemical aspects of microalgae-based biodiesel and methodology of its production.