Lignin modification improves fermentable sugar yields for biofuel production
Lignin modification improves fermentable sugar yields for biofuel production
复制标题
DOI：
10.1038/nbt1316
复制
发表时间：
2007-07-01
影响因子：
46.9
通讯作者：
Dixon, Richard A.
中科院分区：
文献类型：
--
作者：
Chen, Fang;Dixon, Richard A.
糖化反应的阻力是木质纤维生物质转化为乙醇的主要限制因素。在6种木质素生物合成酶中独立下调的转基因紫花苜蓿茎中，对酸处理和酶消化的抗性与木质素含量成正比。一些转基因植物从细胞壁产生的糖分几乎是野生型植物的两倍。木质素的改性可以绕过酸前处理，从而促进生物过程的固结。
Recalcitrance to saccharification is a major limitation for conversion of lignocellulosic biomass to ethanol. In stems of transgenic alfalfa lines independently downregulated in each of six lignin biosynthetic enzymes, recalcitrance to both acid pretreatment and enzymatic digestion is directly proportional to lignin content. Some transgenics yield nearly twice as much sugar from cell walls as wild-type plants. Lignin modification could bypass the need for acid pretreatment and thereby facilitate bioprocess consolidation.