Chief executive Hamish Curran says the true commercial ­potential of the cocktail of enzymes and industrial processes the company has developed lies in the emerging realm of cellulosic ethanol. Tmo's fund raising has included hefty sums from institutional and private investors, he says.

However, with second-generation­ biofuels still at least several years from commercial viability, the company based in Guildford, southeast England, has retrained its short-term focus on the US corn-based ethanol industry.

Curran