Genencor used a genetically modified form of E-coli, a favourite species of bacteria in microbial genetics, to produce BioIsoprene.
Genencor用一种改变了基因的大肠细菌来制造生物异戊二烯，该细菌在微生物遗传学界最受欢迎。
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Genencor is now completing a dedicated pilot factory which will be used to develop a mass-production process, which could be operating commercially around 2015.
In the laboratory Genencor has produced enough of what it calls BioIsoprene for Goodyear to build and successfully test prototype tyres made with the new material.