Table 6.

Assignment of main bands of the FT-IR spectra of rice samples.

Frequency (nm)	Functional group	References
3278	-O-H/-N-H stretching	Wei et al., (2021)
2924	-C-H stretching	Wei et al., (2021)
2358	O=C=O stretching	Ferreira et al., 2020
1647	C=O asymmetric stretching	Trivedi et al., (2015)
1149, 1078, 948	C–O stretching/C–C stretching/C–O–C stretching	Samyor et al., (2016); Qiu et al., (2021)
881, 815	C–C stretching	Ma et al., (2018)
740, 680	= CH bending	Trivedi et al., (2015)
549, 491	C–I (Halogen compound)	Lingegowda et al., (2012)