Physicochemical Properties | NMS | NMLS | NMSBS | NMLSBS | SON* Control |
---|---|---|---|---|---|
Colour | milky | milky | milky | milky | – |
pH. (10%) | 9.60 ± 0.03 | 9.40 ± 0.02 | 9.36 ± 0.03 | 9.34 ± 0.01 | 9–11 max a |
% Moisture content | 14.45 ± 0.02 | 12.50 ± 0.00 | 13.42 ± 0.03 | 13.36 ± 0.02 | 13–20 max |
%Total fatty matter | 77.30 ± 0.04 | 77.68 ± 0.00 | 80.02 ± 0.01 | 80.14 ± 0.02 | 76.50 mini b |
Total free caustic alkali as Na2O | 0.32 ± 0.03 | 0.14 ± 0.01 | 0.12 ± 0.02 | 0.13 ± 0.00 | 0.20 max |
% Matter insoluble in ethanol | 0.40 ± 0.01 | 0.03 ± 0.04 | 0.22 ± 0.00 | 0.20 ± 0.02 | 2.00 max |
% Matter insoluble in water | 0.35 ± 0.00 | 0.33 ± 0.02 | 0.26 ± 0.01 | 0.23 ± 0.04 | 0.50 max |
% Unsaponified Matter | 0.23 ± 0.01 | 0.13 ± 0.02 | 0.04 ± 0.01 | 0.22 ± 0.01 | 0.50 max |
Texture | Hard | very hard | very hard | very hard | – |
Leathering | Good | excellent | excellent | excellent | – |