Table 2.
Peak assignment of FTIR spectra of alkali-washed bamboo strands after steam treatment.

Component	Wavenumber (cm-1)	Peak Assignment
Carbohydrate	1728	Unconjugated C=O in hemicellulose (xylans) (Cheng et al., 2013; Tomak et al., 2013; Lee et al., 2019)
Lignin	1595	Aromatic ring and C-H bond (Cheng et al., 2013)
	1262	Guaiacyl ring breathing with C-O stretching (Cheng et al., 2013)
	1240	C-OH aromatic phenyl (Cheng et al., 2013)
	833	Lignin C-H (Cheng et al., 2013; Tomak et al., 2013)