GLYCEROL ESTER OF WOOD ROSIN
(TENTATIVE)
Tentative specifications prepared at the 74th JECFA (2011) and published in FAO JECFA Monographs 11 (2011), superseding tentative
specifications prepared at the 71st JECFA (2009), published in FAO JECFA Monographs 7 (2009). A temporary group ADI of 0-12.5 mg/kg
bw for glycerol ester of gum rosin and glycerol ester of wood rosin was established at the 74th JECFA (2011).
Updated information required:
• Composition of the refined wood rosin currently used as the source rosin with regard to the levels of resin acids and ”neutrals” (nonacidic saponifiable and unsaponifiable substances)
• Composition of the glycerol ester of wood rosin with regard to the levels of:
a) glycerol esters;
b) free resin acids; and
c) neutrals (non-acidic saponifiable and unsaponifiable substances)
• Composition of the total glycerol ester of resin acids with regard to the levels of:
a) monoglycerol esters;
b) (1,2) diglycerol esters;
c) (1,3) diglycerol esters;
d) triglycerol esters; and
e) dimeric esters
• Composition of the neutrals, including identification of the major classes of compounds and the concentration of the major constituents within the classes
