DAMMAR GUM Prepared at the 39th JECFA (1992), published in FNP 52 Add 1 (1992) superseding specifications prepared at the 28th JECFA (1984), published in FNP 31/2 (1984). Metals and arsenic specifications revised at the 63rd JECFA (2004). No ADI was allocated at the 29th JECFA (1985) Dammar resin, Damar gum, Damar resin, Dammar SYNONYMS The dried exudation from cultivated trees of Agathis spp., Hopea spp., DEFINITION Shorea spp; consists of a complex mixture of acidic and neutral terpenoid compounds together with polysaccharide material. . number 9000-16-2 The crude product occurs as irregular white to yellow or brownish tears, DESCRIPTION fragments or powder, sometimes admixed with fragments of bark; refined grades are white to yellowish and are free of fragments of ligneous matter; practically odourless, although refined grades may carry an odour of the essential oils used in the refining process Clouding agent, glazing agent, stabilizer FUNCTIONAL USES CHARACTERISTICS IDENTIFICATION Solubility (Vol. 4) Insoluble in water; freely soluble in toluene ooMelting range (Vol. 4) 90 - 95 Acid value (Vol. 4) Not more than 40 PURITY oLoss on drying (Vol. 4) Not more than 6% (105, 18 h) Ash (total) (Vol. 4) Not more than % Iodine value (Vol. 4) Not less than 10 and not more than 40 Lead (Vol. 4) Not more than 2 mg/kg Determine using an atomic absorption technique appropriate to the specified level. The selection of sample size and method of sample preparation may be based on the principles of the method described in Volume 4, “Instrumental Methods.” Microbiological criteria Salmonella spp: negative in 1 g (Vol. 4) E. coli: negative in 1 g
