Figure 1
From: Characteristics and chemical compositions of propolis from Ethiopia
Total ion current (TIC) traces showing the major organic tracers in propolis samples collected from. (a) Enemor (Gurghe), (b) Holleta, (c) Bako, and (d) Gedo localities in Ethiopia (1 = β-amyrone, 2 = α-amyrone, 3 = β-amyrin, 4 = α-amyrin, 5 = β-amyryl acetate, 6 = α-amyryl acetate, 7 = lup-20(29)-en-3-one, 8 = lupeol, 9 = β-lupeyl acetate, 10 = α-lupeyl acetate, 22/16, 24/16, 26/16 and 28/16 are docosyl hexadecanoate, tetracosyl hexadecanoate, hexacosyl hexadecanoate and octacosyl hexadecanoate, respectively; numbers above the symbols indicate the carbon number).