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.
Biofuel is a term for fuel from plant sources. There are actually lots of different biofuels, many of which are very similar. Biofuels are just fuels which are grown using plant sources (sometimes called biomass) such as hemp, soya, oil seed rape, sugar and palm oil.