Multi-scale instrumental analyses for structural changes in steam-treated bamboo using a combination of several solid-state NMR methods

Integrated analysis of solid-state NMR spectra and nuclear magnetic relaxation times for the phenol formaldehyde (PF) resin impregnation process into soft wood

“…Signals for biomass constituents in the spectra were assigned based on our previous reports about modied bamboos and cypresses. [14][15][16] The assignments of cellulose signals are shown over the 13 Fig. 2(e)].…”

“…The authors acknowledge the research support (No. [11][12][13][14][15][16][17] provided by the LIXIL JS Foundation and the support of an Emachu research grant (2013-2015) provided by the Japan Wood Research Society.…”

“…In developing an evaluation method for natural biomass resources, we have accomplished multi-scale instrumental analyses mainly using solid-state NMR for studying not only the removal of biomass constituents from bamboo 14 but also steam treatments of bamboo. 15 We have also revealed nanostructures of denatured Japanese cypresses and their magnetic relaxation processes with/without water molecules using multi-scale instrumental analyses. 16 Moreover, as examples of magnetic relaxation analysis of biomass polymers, we have also produced a correlational analysis between the mechanical properties and relaxation time for poly(lactic acid)/poly(3-caprolactone) alloys 17 as well as a morphological analysis of poly(lactic acid)/nano-clay composite using variable temperature relaxation time analysis.…”

Enhancing enzymatic saccharification of sugarcane bagasse by combinatorial pretreatment and Tween 80

“…This phenomenon indicated that the one-step pretreatments proposed in this study were not enough for the large decomposition of hemicellulose, as confirmed in Table 1 . For Case 5 and Case 11, as about 75–85% of hemicellulose was removed, there was only one weight loss peak due to the decomposition of retained cellulose and lignin, which was in agreement with the disappearance of the hemicellulose peak [ 30 ]. However, compared to untreated material (335 °C), the thermal decomposition temperatures of pretreated substrates for 50% weight loss were increased to different degrees and reached 361, 365, 360, 358, 374, 356, 361 °C for Case 1–5, Case 8, and Case 11, respectively.…”

Improvement of Bamboo Properties via In Situ Construction of Polyhydroxyethyl Methylacrylate and Polymethyl Methylacrylate Networks

“…Many efforts have been made to keep bamboo from splitting, cracking, and deforming. Heat treatment has been extensively researched and widely used to improve the dimensional stability of bamboo (Meng et al 2016;Yang et al 2016;Nishida et al 2017). The pretreatment of bamboo with polyethylene glycol can lower the risk of cracks both under room temperature and higher drying temperatures (Kang et al 2017).…”