QIBEBT-IR
Structural Characterization of Lignocresols from Transgenic and Wild-Type Switchgrass
Ren, Hao1; Tian, Wenyuan1; Shu, Fan1; Xu, Dongliang1; Fu, Chunxiang2; Zhai, Huamin1
2018-07-01
Source PublicationPOLYMERS
ISSN2073-4360
Volume10Issue:7Pages:11
AbstractCafferic 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.
Keywordswitchgrass lignocresols transgenic sample structural characterization
DOI10.3390/polym10070727
WOS Keyword5-HYDROXYCONIFERYL ALCOHOL ; GLOBAL CHALLENGES ; NETWORK POLYMER ; LIGNIN ; ENERGY ; UNITS ; ACID ; NMR
Language英语
Funding ProjectInnovation 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 Research AreaPolymer Science
Funding OrganizationInnovation 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 SubjectPolymer Science
WOS IDWOS:000442528400038
PublisherMDPI
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/12227
Collection中国科学院青岛生物能源与过程研究所
Corresponding AuthorZhai, Huamin
Affiliation1.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
Recommended Citation
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.
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