Ascorbic acid‐induced degradation of liposome‐encapsulated acylated and non‐acylated anthocyanins of black carrot extract

BACKGROUND In the presence of ascorbic acid, degradation acylated (sinapic, ferulic and p-coumaric acid derivatives cyanidin-3-xylosylglucosylgalactoside) non-acylated anthocyanins black carrot extract (BCE) encapsulated in liposomes was studied. BCEs (0.2% 0.4% w/w) were using different lecithin concentrations (1%, 2% 4% w/w). RESULTS The prepared with particle diameters less than 50 nm zeta potentials about −21.3 mV for extract-containing −27.7 control liposomes. encapsulation efficiency determined high-performance liquid chromatography (HPLC) showed that increasing levels increased to 59% at same concentration. total individual (0.1% w/w)-degraded (containing 0.2% w/w extract). Anthocyanin quantification both liposomal samples performed by HPLC cyanidin-3-O-glucoside chloride as standard. Five quantified during 24 h (0–24 h): cyanidin-3-xylosylglucosylgalactoside 1.0–0.51 0.82–0.58 mg g−1, cyanidin-3-xylosylgalactoside 2.5–1.1 2.2–1.7 cyanidin-3-xylosyl(sinapoylglucosyl)galactoside 0.51–0.14 0.35–0.28 cyanidin-3-xylosyl(feruloylglucosyl)galactoside 1.37–0.41 1.06–0.98 cyanidin-3-xylosyl(coumaroylglucosyl)galactoside 0.28–0.08 g−1 0.27–0.26 liposomes, respectively. CONCLUSIONS This study demonstrates potential beneficial effect on individual, particularly acylated, after addition a storage time h.