Table 1 Assignments of the characteristic mid-IR bands in the mid-IR spectrum of G. lingzhi mycelium.

3400

-OH stretching⁵⁵

2926

CH₂ asymmetric stretching⁵⁶

1640

Amide I⁵⁶

1457

CH₂ in polysaccharides⁵⁷

1425

C-H deformation in lignin and carbohydrates¹⁵

1372

C-H in-plane bending vibration^58,59

1314–1316

symmetric CH₂ bending of cellulose⁴³

1243

COH in-plane bending/CH in-plane bending⁵⁸

1152–1156

C-O-C asymmetric stretching of glycosidic linkage⁴⁴

1078

C-O stretching of β-glucans^45,46,51

1044

stretching vibration of C-O-C group⁶⁰

1025

stretching vibration of C-O α-glycosidic bond⁴⁷

951

β-glycosidic bond⁴⁷; C-O and C-C stretching⁴⁸

867

γ (C-H)⁶¹; furanose ring⁶²

778

COO⁻ deformation⁶³

709

CH out-of plane bending⁶⁴

573

bending vibration of a polysaccharide ring³⁹

523

pyranose ring⁶²; C=O asymmetric deformation⁶⁵