Table 3 Solubility behaviour and physicochemical properties of NG and MNG
From: Purification and modification of neem gum for enhancement of its suspending property
Parameters | NG | MNG |
|---|---|---|
Solubility | ||
Water | Soluble | Soluble |
Alcohol | Insoluble | Insoluble |
pH 1.2 HCl buffer | Soluble | Colloidal |
pH 7.4 phosphate buffer | Soluble | Insoluble |
Physicochemical properties | ||
Moisture content | 4.5% w/w | 7.5% w/w |
Ash value | 3.2% w/w | 6.8% w/w |
Acid insoluble ash | 0.1% w/w | 0.5% w/w |
Swelling factor | 5 | 6 |
pH (0.1%) | Acidic | Alkaline |