A better source for biofuel?

October 7, 2015

Researchers at the Centre have showed that the agave plant, best known for producing tequila in Mexico, could produce up to 15,000 litres per hectare a year of biofuel ̶ and it grows on marginal land under low rainfall conditions.

The paper, titled “Prospecting for Energy-Rich Renewable Raw Materials: Agave Leaf Case Study” published in the journal PLOS ONE, outlined agave leaf composition and fermentation efficiencies that could produce competitive biofuels from this fast-growing, highly water use efficient plant.

“Bioethanol yields from agave fermentation could rival the most successful biofuel feedstock crops around the world,” says Associate Professor Rachel Burton.

“Importantly, it doesn’t compete with food crops, it’s fast growing so the whole plant could be used rather than just harvesting the leaves, and it is up to 10 times more water efficient than some other crop plants.”

Associate Professor Burton and her team, including PhD student Kendall Corbin, are working with AusAgave who have trial sites of agave established in Ayr in northern Queensland and Whyalla, South Australia.

Further research is in progress to establish the best cultivation methods for bioethanol production, for example planting densities and mechanisation to maximise yield, and optimisation of fermentation.

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