Karaya gum

Karaya gum (CAS 9000-36-6), also known as Sterculia gum and approved as E416, is a natural exudate polysaccharide sourced primarily from Sterculia urens trees in India. It functions as a thickener, binder, and stabilizer across food, pharmaceutical, and industrial applications. In food manufacturing, it stabilizes ice cream, salad dressings, and processed meats by controlling texture and preventing syneresis. Pharmaceutical formulators use it as a bulk laxative base and tablet binder for various applications.

Its swelling capacity supports controlled-release and mucoadhesive dosage forms in medical settings. Personal care manufacturers incorporate it into denture adhesives, hair-setting lotions, and skin creams for its moisture-retention and film-forming behavior. In textile and paper processing, it functions as a sizing and finishing agent, improving fiber cohesion and surface quality. Karaya gum is supplied as an off-white to pinkish-tan powder in various mesh sizes for industrial use.

Coarser granules are available for specific industrial applications depending on the client requirements. Standard grades include food-grade (FCC compliant) and pharmaceutical-grade material meeting USP and BP specifications. Viscosity grades are a key purchasing parameter, with higher-viscosity lots commanding premium pricing for demanding formulation work. This versatile gum remains a staple ingredient for manufacturers seeking natural stabilization solutions.