Table 2.

Band assignments of the primary vibrational frequencies in the yeast cell wall fraction (YCW).

Band	Wavenumber (cm−1)	Functional group or commonly assigned compound
A	3,279	O–H and N–H stretching vibrations (carbohydrate and protein)
B	2,922	CH2 antisymmetric stretching (lipids)
C	2,849	C–CH3 symmetric stretching (lipids)
D	1,711	C=O stretching (phospholipid esters)
E	1,629	Amide I (N–H bending and C=O stretching)
F	1,532	Amide II (C–N stretching and N–H bending)
G	1,455	OH bending vibration in carboxylic acids
H	1,369	β-anomeric carbons (β-glucans)
I	1,202	C–O stretching, C–OH wagging, twisting, and rocking (carbohydrates)
J	1,025	C–O stretching (carbohydrates)
K	887	β-anomeric carbons β(1 → 3)-glucans
L	810	Mannans (C–O–C, C–C, and C–OH stretching of pyranose ring)