CALCIUM LIGNOSULFONATE (40-65)
New specifications prepared at the 69th JECFA (2008), published in FAO JECFA Monographs 5 (2008). An ADI of 0-20 mg/kg bw was established at the 69th JECFA (2008).
SYNONYMS Lignosulfonic acid, calcium salt (40-65); INS No. 1522
DEFINITION Calcium lignosulfonate (40-65) is an amorphous material obtained from the sulfite pulping of softwood. The lignin framework is a
sulfonated random polymer of three aromatic alcohols: coniferyl alcohol, p-coumaryl alcohol, and sinapyl alcohol, of which coniferyl alcohol is the principle unit. After completion of the pulping, the water-soluble calcium lignosulfonate is separated from the cellulose, purified (ultrafiltration), and acidified. The recovered material is evaporated and spray dried. The commercial product has a weightaverage molecular weight range of 40,000 to 65,000.
DESCRIPTION Light yellow-brown to brown powder
FUNCTIONAL USES Carrier, encapsulating agent
