Natural Hue for Treats: Development and Assessment of Jelly Candies Colored Exclusively with Chokeberry Extract

Abstract

The comparative phytochemicals,
antioxidativeand antidiabetic activities of Camellia sinensis
(black tea) and Aspalathus linearis (rooibos tea) were
studied in vitro and ex vivo. Concentrated infusions of the
teas showed significant free radical scavenging activities in
vitro. They significantly increased the glutathione level,
superoxide dismutase and catalase enzyme activities in
oxidative hepatic injury, while concomitantly depleting
malondi- aldehyde level. The teas significantly inhibited
intestinal glucose absorption and a-amylase activities, and
elevated muscle glucose uptake. LCMS phytochemical
profiling revealed the presence of hydroxycaffeic acid, lthreonate, caffeine, vanillic acid, n-acetylvaline, and
spinacetin 3-glucoside in C. sinensis. While quinolinic acid,
coume- strol, phloroglucinol, 8-hydroxyquercetagetin,
umbellifer- one, and ajoene were identified in A. linearis.
These results portray the antioxidant and antidiabetic
potencies of both teas, with A. linearis showed better
activity compared to C. sinensis. These teas may thus be
used as functional foods inthe management of diabetes and
other oxidative stress related metabolic disorders