Structural Characterization of Lignocresols from Transgenic and Wild-Type Switchgrass

doi:10.3390/polym10070727

QIBEBT-IR

	Structural Characterization of Lignocresols from Transgenic and Wild-Type Switchgrass
	Ren, Hao 1; Tian, Wenyuan 1; Shu, Fan 1; Xu, Dongliang 1; Fu, Chunxiang2 ; Zhai, Huamin 1
	2018-07-01
发表期刊	POLYMERS
ISSN	2073-4360
卷号	10 期号:7 页码:11
摘要	Cafferic acid-O-methyltransferases (COMT) down-regulated transgenic and wild-type switchgrass were separated into lignocresols (LCs) and sugars by a phase separation method involving 72% sulfuric acid and cresol. The isolated LCs were characterized by FTIR, GPC, H-1 NMR and 2D-HSQC to understand potential structural modification caused by transgenic engineering lignin or phase separation treatment. No significant changes were found in terms of molecular weights and the amount of incorporated p-cresols between transgenic and wild-type switchgrass LCs. However, the compositions, ratios of syringyl (S) units to guaiacyl (G) units, were changed significantly leading to decrease in S units and increase in G units for transgenic switchgrass LC. The benzodioxane structures and 5-hydroxyguaiacyl units were observed in the 2D-HSQC implied that 5-hydroxyconiferyl alcohol was incorporated into lignin as a result of COMT-down-regulation in the transgenic process.
关键词	switchgrass lignocresols transgenic sample structural characterization
DOI	10.3390/polym10070727
关键词[WOS]	5-HYDROXYCONIFERYL ALCOHOL ; GLOBAL CHALLENGES ; NETWORK POLYMER ; LIGNIN ; ENERGY ; UNITS ; ACID ; NMR
语种	英语
资助项目	Innovation Projects for College Students of JiangSu Province[201710298039Z] ; Nanjing Forestry University Outstanding Youth Fund[NLJQ2015-5] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), China
WOS研究方向	Polymer Science
项目资助者	Innovation Projects for College Students of JiangSu Province ; Nanjing Forestry University Outstanding Youth Fund ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), China
WOS类目	Polymer Science
WOS记录号	WOS:000442528400038
出版者	MDPI
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/12227
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Zhai, Huamin
作者单位	1.Nanjing Forestry Univ, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Jiangsu Prov Key Lab Pulp & Paper Sci & Technol, 159 Longpan Rd, Nanjing 210037, Jiangsu, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Ren, Hao,Tian, Wenyuan,Shu, Fan,et al. Structural Characterization of Lignocresols from Transgenic and Wild-Type Switchgrass[J]. POLYMERS,2018,10(7):11.
APA	Ren, Hao,Tian, Wenyuan,Shu, Fan,Xu, Dongliang,Fu, Chunxiang,&Zhai, Huamin.(2018).Structural Characterization of Lignocresols from Transgenic and Wild-Type Switchgrass.POLYMERS,10(7),11.
MLA	Ren, Hao,et al."Structural Characterization of Lignocresols from Transgenic and Wild-Type Switchgrass".POLYMERS 10.7(2018):11.