In the panorama of green economy the most heated debates occur when it comes to biofuels and wind energy. These energy sources have "side effects" but in both cases the research is making great strides, especially with i biofuels we have witnessed a real excursus: from the most classic biofuels from maize to biofuels from galactane, without forgetting the possibility of producing biofuels using waste.

As we have seen with galactane, industries today have the ability to produce biofuels in the laboratory, stemming the negative impact that plant crops could have on the environment: agriculture linked to the production ofbiofuels harms ecosystems such asforests, peatlands and pastures, without mentioning the phenomenon of land grabbing. To produce biofuels in the laboratory would mean reducing all the negative impacts related to this energy resource.

In Europe, by 2020, ibiofuels they should cover 10 per cent of the energy needs of transport. Unfortunately, the crops necessary for the production of biofuels of the first generation, are in competition with food crops and wooded areas. So let's start talking about biofuels of the latest generation, coming from agricultural waste, organic waste, algae or other laboratory synthesis processes. THE biofuels which will have to cover 10 percent of the energy demand of transport in Europe, will have to be those of the new generation.

In the future, for the production of biofuels, the transport industry will be able to count on bacteria. Researchers around the globe are working on the best known microorganisms in the scientific landscape, the Escherichia coli. In this context, the latest advances come from the University of Exeter in Devon. Here, British researcher John Love engineered Escherichia coli bacteria by inserting genetic sequences from two other strains of bacteria into their DNA. Photorhabdus luminescens and cyanobacterium Point-like nostoc.

The genes inserted into the DNA of Escherichia coli will be used to turn fat into fuel. The Escherichia coli bacteria are able to transform sugars into fat for the synthesis of their cell membranes, the fats thus obtained, thanks to genetic engineering, can be transformed into biofuels, in this case biodiesel.

Similar research was carried out in the Barkeley Lab and has been thoroughly described in our in-depth article.

Video: Biofuels 101 (October 2020).