Sr. Joshi et al., Physico-chemical characteristics of Apis dorsata, A. cerana and A. mellifera honey from Chitwan district, central Nepal, APIDOLOGIE, 31(3), 2000, pp. 367-375
Honey samples from Apis dorsata, A. cerana and A. mellifera were collected
by cutting a piece of honey comb directly from the colonies on the same day
and from the same floristic region of Chitwan district, central Nepal. Phy
sico-chemical analysis of the honey samples was performed. The values obtai
ned for moisture content, electrical conductivity (EC), invertase, and prol
ine content were significantly different between all the honey groups. The
analytical values for Apis dorsata (n = 28), A. cerana (n = 26), and A. mel
lifera (t = 27) respectively were: 21.5, 20.1 and 17.1 moisture content (g/
100 g honey); 0.96, 0.65 and 0.31 EC (mS/cm), 373.4, 218.2 and 110.9 invert
ase (Siegenthaler U/kg), and 875.8, 323.0 and 610.2 proline (mg/kg). There
were no significant differences between the honey types in pH, glucose oxid
ase, and the amount of glucose. However, the amount of fructose was signifi
cantly higher in A. dorsata and A. cerana than in A. mellifera honeys. Simi
larly, the amount of oligosaccharide L-2 was significantly higher and sucro
se was significantly lower in A. dorsata honeys than in A. cerana and A. me
llifera honeys.