Unconventional type of biomass suitable for the production of biofuels

Production of biofuel from renewable sources is considered to be one of the most sustainable alternatives to petroleum sourced fuels. Biofuels are also viable means for environmental and economic sustainability. Biofuels are divided into four generations. At present microalgae are presented as an ideal third generation biofuel feedstock because of their rapid growth rate and they also do not compete with food or feed crops, and can be produced on non-arable land. Microalgae have broad bioenergy potential because they can be used to produce liquid transportation and heating fuels (bioethanol, biodiesel). In this paper we present an overview about biofuels generation, especially about using duckweed for bioethanol production.