caa a22 4500 606208070 CHVBK 20210128101020.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s00425-014-2235-7 doi (NATIONALLICENCE)springer-10.1007/s00425-014-2235-7 Topochemical and morphological characterization of wood cell wall treated with the ionic liquid, 1-ethylpyridinium bromide [Elektronische Daten] [Toru Kanbayashi, Hisashi Miyafuji] Main conclusion : [EtPy][Br] is more reactive toward lignin than toward the PSs in wood cell walls, and [EtPy][Br] treatment results in inhomogenous changes to the cell wall's ultrastructural and chemical components. The effects of the ionic liquid 1-ethylpyridinium bromide ([EtPy][Br]), which prefers to react with lignin rather than cellulose on the wood cell walls of Japanese cedar (Cryptomeria japonica), were investigated from a morphology and topochemistry point of view. The [EtPy][Br] treatment induced cell wall swelling, the elimination of warts, and the formation of countless pores in the tracheids. However, many of the pit membranes and the cellulose crystalline structure remained unchanged. Raman microscopic analyses revealed that chemical changes in the cell walls were different for different layers and that the lignin in the compound middle lamella and the cell corner resists interaction with [EtPy][Br]. Additionally, the interaction of [EtPy][Br] with the wood cell wall is different to that of other types of ionic liquid. Springer-Verlag Berlin Heidelberg, 2014 1-Ethylpyridinium bromide nationallicence Cell wall nationallicence Ionic liquid nationallicence Microscopy nationallicence Raman microscopy nationallicence Wood nationallicence CC : Cell corner nationallicence CML : Compound middle lamella nationallicence [C2mim][Cl] : 1-Ethyl-3-methylimidazolium chloride nationallicence [EtPy][Br] : 1-Ethylpyridinium bromide nationallicence PSs : Polysaccharides nationallicence S2 : Middle layer of secondary wall nationallicence S3 : Inner layer of secondary wall nationallicence SEM : Scanning electron microscopy nationallicence Kanbayashi Toru Division of Environmental Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Hangi-cho, Shimogamo, Sakyo-ku, 606-8522, Kyoto, Japan aut Miyafuji Hisashi Division of Environmental Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Hangi-cho, Shimogamo, Sakyo-ku, 606-8522, Kyoto, Japan aut Planta Springer Berlin Heidelberg 242/3(2015-09-01), 509-518 0032-0935 242:3<509 2015 242 425 https://doi.org/10.1007/s00425-014-2235-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00425-014-2235-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kanbayashi Toru Division of Environmental Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Hangi-cho, Shimogamo, Sakyo-ku, 606-8522, Kyoto, Japan aut NATIONALLICENCE 700 1- Miyafuji Hisashi Division of Environmental Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Hangi-cho, Shimogamo, Sakyo-ku, 606-8522, Kyoto, Japan aut NATIONALLICENCE 773 0- Planta Springer Berlin Heidelberg 242/3(2015-09-01), 509-518 0032-0935 242:3<509 2015 242 425