Other names for the additive (synonyms)
General Information
Additive E425(ii) (konjac glucomannan) is a subtype of additive E425 and differs from konjac gum in its production method and structural characteristics.
Its chemical formula is also expressed as (C₆H₁₀O₅)n, but the polysaccharide chains undergo partial hydrolysis, which alters the molecular weight and functional properties.
The production of additive E425(ii) involves additional processing of the original polysaccharide: the raw material from Amorphophallus tubers is subjected to enzymatic or acid hydrolysis. As a result, a more soluble and less viscous product is obtained compared to additive E425(i).
Konjac glucomannan has a strong water-holding capacity, but its texturizing properties are milder. In the food industry, additive E425(ii) is used as dietary fiber, a functional ingredient in bakery products, dairy items, beverages, and dietary supplements. Thanks to its improved solubility, it is more easily incorporated into formulations without creating excessive viscosity.
The main difference from additive E425(i) is that konjac glucomannan is more convenient for use in beverages and functional products, where high solubility and a gentle effect are required.
More details about the properties of konjac and its effects on health can be found in the main article on additive E425.