Glycerol ester of wood rosin, glyceryl abietate, or ester gum is a food additive used as an emulsifier and stabilizer, to keep oils in suspension in water. Glycerol ester of wood rosin serves as a natural alternative to brominated vegetable oil, particularly in citrus-flavored soft drinks.
It has E number E445. It is water-soluble and leaves the body through urine.
Specification:
ITEMS | STANDARD |
Appearance | Hard, yellow to pale amber-colored resin |
Identification | Solubility: Insoluble in water, soluble in acetone |
Infrared absorption spectrum | Characteristic of the compound |
Ring and ball softening range (℃) | 82- 90 |
Acid value (mg KOH/g) | 3-9 |
Specific gravity (25℃) | 1.080- 1.090 |
Ash (%) | =< 0.1 |
Lead (Pb) | =<2 mg/kg |
Arsenic (As) | =<3 mg/kg |
Mercury (Hg) | =<1 mg/kg |
Cadmium (Cd) | =<1 mg/kg |
Total heavy metals(as Pb) | =<10 mg/kg |
Total plate count | =< 5000 cfu/g |
Yeast & mould | =< 500 cfu/g |
Salmonella/ 10g | Negative |
E. Coli/ 5g | Negative |
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