壳牌公司与美国生物催化剂生产商Codexis公司于2007年11月初宣布扩大合作,开发用于将非食用生物质转化为燃料用的酶。壳牌公司已于2006年11月同意与Codexis公司合作,开发第二代生物燃料生产方法。第二代技术旨在避免对第一代装置所用的食用类作物的依赖。新的为期5年的研究合作 Shell and American biocatalyst producer Codexis announced an expanded collaboration in early November 2007 to develop enzymes for the conversion of non-edible biomass to fuel. Shell has agreed in November 2006 to work with Codexis to develop a second-generation biofuel production method. The second generation technology aims to avoid reliance on food crops used by the first generation of devices. New five-year research collaboration