School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, China.
Plant Biol (Stuttg). 2015 Jan;17 Suppl 1:16-23. doi: 10.1111/plb.12216. Epub 2014 Jul 1.
Duckweed can be utilised to produce ethanol, butanol and biogas, which are promising alternative energy sources to minimise dependence on limited crude oil and natural gas. The advantages of this aquatic plant include high rate of nutrient (nitrogen and phosphorus) uptake, high biomass yield and great potential as an alternative feedstock for the production of fuel ethanol, butanol and biogas. The objective of this article is to review the published research on growing duckweed for the production of the biofuels, especially starch enrichment in duckweed plants. There are mainly two processes affecting the accumulation of starch in duckweed biomass: photosynthesis for starch generation and metabolism-related starch consumption. The cost of stimulating photosynthesis is relatively high based on current technologies. Considerable research efforts have been made to inhibit starch degradation. Future research need in this area includes duckweed selection, optimisation of duckweed biomass production, enhancement of starch accumulation in duckweeds and use of duckweeds for production of various biofuels.
浮萍可用于生产乙醇、丁醇和沼气，这是减少对有限的石油和天然气依赖的有前途的替代能源。这种水生植物的优点包括高养分（氮和磷）吸收率、高生物质产量和作为生产燃料乙醇、丁醇和沼气的替代原料的巨大潜力。本文的目的是综述浮萍生产生物燃料，特别是浮萍植物中淀粉富集的已发表研究。主要有两个过程影响浮萍生物量中淀粉的积累：光合作用生成淀粉和与代谢相关的淀粉消耗。根据当前技术，刺激光合作用的成本相对较高。人们已经做出了相当大的努力来抑制淀粉的降解。该领域未来的研究需求包括浮萍的选择、浮萍生物量生产的优化、浮萍中淀粉积累的增强以及利用浮萍生产各种生物燃料。
