Table 2.

Unsaponifiable content in N. alba

Compound	Percent
n-tetradecane, C14	0.97
n-pentadecane, C15	0.84
n- hexadecane, C16	1.11
n-octadecane, C18	9.69
n-nonadecane, C19	1.13
n-tetracosane, C24	59.59
n-octacosane, C28	2.67
n-tetratriacontane, C30	18.96
Total hydrocarbons	94.96
stigmasterol	1.68
β-sitosterol	3.35
Total sterols	5.03
% Unidentified	0.006