Scientists come up with an eco-friendly solution for biofuel productionJuly 8th, 2008 - 4:38 pm ICT by ANI
Washington, July 8 (ANI): A group of scientists have come up with an eco-friendly solution for biofuel production in the form of using plants to make the enzymes that can break down the plant material into useable compounds.
With the current drive towards production of alternative fuels from plant material, enzymes, which can break down this material into useable compounds, are required in industrial quantities and at a low cost.
Now, one group of scientists from Texas A&M University in the US has come up with a solution: using plants to make the enzymes.
Traditional methods of generating enzymes for biofuel production currently operate at over five times the target cost required to make the fuels financially competitive.
By using plants that have been engineered to make the proteins, Professor Zivko Nikolov, who leads the Bioseparations Lab at Texas A&M University, believes that the target can be met.
His group, which has expertise in the development of economic processing techniques, have designed processing strategies which allow multiple products to be obtained from each crop, making the whole process more economically viable.
One of our projects focuses on producing cellulases, enzymes which can break down biomass, in maize seed, said Nikolov.
By carefully designing the processing chain, from a single crop of maize we can deliver oil that can be turned into biodiesel, cellulose that can be used to make other biofuels, and fibre and protein which can be used as animal feed, as well, of course as the enzymes themselves, he added.
According to Nikolov, These multiple products offset the outlay on the enzyme purification process, meaning we can make enzymes far more cost-effectively than is achievable using traditional fermentation methods.
In the 1990s, there was much interest in using plants to make both industrial enzymes and pharmaceuticals.
But, in the last five years such industrial enzyme developments have gone out of fashion, largely due to production costs that simply werent viable, combined with public unease.
Now, Professor Nikolovs group has brought this technology back into the picture.
The economic improvements that we have delivered to the processing pathway, combined with a greater public acceptance of transgenic plants, mean that we can now develop the full potential of this technology, said Nikolov.
This in turn will bring us a step closer to the vital challenge of generating cheap alternative fuels over the coming decades, he added. (ANI)
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