Tailor‐made novel polymers for hydrogel encapsulation processes

Microencapsulation of phenolic compounds: Technologies and novel polymers

“…Natural polymers are of considerable importance because most of them are biodegradable and known like ingredients "generally recognized as safe" (GRAS), which is an important benefit, particularly in the last years where the actions to reduce synthetic materials and hazardous chemicals have become widespread. In the group of natural polymers can be differentiated two major groups: polysaccharides and proteins (Bartkowiak et al, 2017b).…”

“…In the industry there are two forms to produce gelatins; one is by acid treatment, producing gelatin type A, and the other, type B, by alkaline treatment. Gelatin is a heterogeneous mixture of polypeptides of 300-4000 amino acids each, conforming a helix structure every third unit in all chains, presenting glycine, then proline and 4-hydroxyproline as commonly occurring residues (Bartkowiak et al, 2017b). An example on the use of gelatin in microencapsulation processes is the encapsulation of black raspberry water extracts rich in anthocyanins (770.2 mg cyanidin-3glucoside equivalent (CGE)/100 g) (Shaddel et al, 2018).…”

“…The inulin is a polymer made of linear chains of fructosyl groups bonded by β-2,1 glycosidic linkages, with the reducing end terminated by an α-D-1,2 glucopyranoside ring group. In general, inulins derived from plants have chains containing 2 to 100 or more units of fructose (Bartkowiak et al, 2017b).…”