Microencapsulation with gum arabic and spruce galactoglucomannan

Gum arabic (AG), the dried exudate from Acacia trees, is probably the most well-known and widely used capsule material in food field due to its unarguable suitability for microencapsulation purposes. AG is a highly branched and complex heteropolysaccharide (arabinogalactan) containing a small amount (~1%) of covalently bound protein (Dickinson 2003). Unlike many other polysaccharides, AG possesses excellent emulsifying properties and low solution viscosity despite its high molecular weight (Buffo et al. 2001).

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