US-based agricultor processor Archer Daniels Midland Co and DuPont Industrial Biosciences, a division of DowDuPont Inc, are partnering to provide cellulase enzymes for grain-based ethanol plants. The companies said on Wednesday they will develop, produce and market the enzymes that help make ethanol from corn kernel fibre, allowing grain-based fuel ethanol producers to make better use of existing feedstocks. Ethanol produce from corn kernel fibre could qualify for D3 RINS under the US' Renewable Fuel Standard programme, the companies noted. Initial product prototypes have successfully been proved in laboratory and ethanol plant scale testing and the pair now plans more evaluations. The two companies are already collaborating on high performance renewable bio-materials