氢能或电能驱动的人工光合作用固定CO_2合成糖  

Synthesis of sugar and fixation of CO_2 through artificial photosynthesis driven by hydrogen or electricity

作　　者：黄卫东[1] 

机构地区：[1]中国科学技术大学地球与空间科学学院,安徽合肥230026

出　　处：《中国科学技术大学学报》2011年第5期459-468,共10页JUSTC

基　　金：国家留学基金委基金(2008401951);安徽省科技攻关计划基金(07010302166)资助

摘　　要：基于酶工程原理,通过组合自然界存在的酶促生化反应,提出自然界不存在的人工光合作用暗反应途径,只需要使用H2或电再生NADH驱动转化CO2为糖或淀粉,避开了人工光合磷酸化再生ATP难题,而且理论效率高.这种使用能源人工合成糖的方法,也是粮食生产工业化的一种潜在方法,如果将其与太阳能光伏技术或产氢技术结合,就可以实现人工光合作用,利用太阳能将CO2转换为糖。The overall process of photosynthesis consists of two main phases,the so-called light and dark reactions,in which light energy is absorbed by chlorophyll molecules and transferred to regenerate NADH and ATP,then drive Calvin-Benson cycle to synthesize sugar.Due to the difficulty in artificial regeneration of ATP,artifical dark reaction pathways were thus proposed,which are based on the natural biochemical reactions catalyzed by enzymes,with which only NADH is needed to be regenerated from hydrogen or electricity for driving the dark reactions.ATP is thus not needed to be regenerated from photophosphorylation and the theoretical efficiency is improved.This provides an artificial sugar synthesis method from energy and CO2,and may be a potential industrial process to produce sugar with energy.The solar energy may be used to convert CO2 artificially to sugar if the pathway and photovoltic or solar hydrogen technology is combined.

关 键 词：人工光合作用 暗反应 CO2固定 糖合成 

分 类 号：Q811[生物学—生物工程]