Complexation of octenyl succinic anhydride-esterified corn starch/ polyphenol-rich Roselle (Hibiscus sabdariffa L.) extract: Structural and digestibility features
Native and octenyl succinic anhydride (OSA; degree of substitution = 0.0164 ± 0.002)-esterified corn starches were employed for the manufacture of the starch-polyphenol V-type complexes. For this, the aqueous extract of Roselle was used as a rich source of polyphenols. Assembled OSA starch-polyphenol VI-type complexes were obtained, primarily due to hydrogen (H)-bond interactions and hydrophobic C