Hawaii Natural Energy Institute, University of Hawaii at Manoa, 1680 East-West Road POST 104, Honolulu, HI 96822, USA.
Trends Biotechnol. 2014 Jan;32(1):5-10. doi: 10.1016/j.tibtech.2013.11.001. Epub 2013 Dec 3.
Producing bio-based products directly from CO₂ and solar energy is a desirable alternative to the conventional biorefining that relies on biomass feedstocks. The production paradigm is based on an artificial photosynthetic system that converts sunlight to electricity and H₂ via water electrolysis. An autotrophic H₂-oxidizing bacterium fixes CO₂ in dark conditions. The assimilated CO₂ is stored in bacterial cells as polyhydroxybutyrate (PHB), from which a range of products can be derived. Compared with natural photosynthesis of a fast-growing cyanobacterium, the artificial photosynthetic system has much higher energy efficiency and productivity of bio-based products. The new technology looks promising because of possible cost reduction in feedstock, equipment, and operation.
将 CO₂ 和太阳能直接转化为生物基产品是对传统生物炼制的一种理想替代，传统生物炼制依赖生物质原料。该生产模式基于一种人工光合作用系统，该系统通过水电解将阳光转化为电力和氢气。自养产氢菌在黑暗条件下固定 CO₂。被同化的 CO₂ 以聚羟基丁酸酯（PHB）的形式储存在细菌细胞中，从 PHB 可以衍生出一系列产品。与快速生长的蓝藻的自然光合作用相比，人工光合作用系统具有更高的生物基产品能量效率和生产力。由于原料、设备和运营成本可能降低，这项新技术前景看好。
