How do you create references for journal articles in APA format? If you need to write a psychology paper, then you are going to probably need to reference a number of different journal articles. Such articles summarize the results of studies and experiments conducted by researchers on an enormous range of topics.
The problem that second generation biofuel processes are addressing is to extract useful feedstocks from this woody or fibrous biomass, where the useful sugars are locked in by lignin, hemicellulose and cellulose. All plants contain lignin, hemicellulose and cellulose.
Types of biofuels. Biofuels are energy carriers that store the energy derived from biomass.* [For a review of terminology relating to biofuels, see FAO (2004a) UBET â Unified Bioenergy Terminology. Rome.] A wide range of biomass sources can be used to produce bioenergy in a variety of forms.