Parameters
Mean ± SD
Range of values (Min – Max )
Limits of Int’l Standards
Samples outside the Limits of International Std.
pH
4.08 ± 0.41
3.50 – 4.90
No fixed limit
–
Conductivity (mS/cm)
0.15 ± 0.09
0.05 – 0.41
Not > 0.8 mS/cm
–
Free acidity (meq/kg)
23.00 ± 6.20
13.00 – 33.60
Not > 50 meq/kg
–
Lactose acidity (mg/g)
2.28 ± 0.89
1.16 – 4.63
No fixed limit
–
Total acidity (mg/kg)
25.17 ± 6.86
14.25 – 36.67
No fixed limit
–
HMF (mg/kg)
11.73 ± 3.97
5.99 – 17.22
Not > 40 mg/kg
–
Diastase activity (Schade unit)
9.37 ± 1.38
8.00 – 13.00
Not < 8 Schade unit
–
Table 2:
Physicochemical parameters of eighteen (18) honey samples from Northeastern Nigeria.