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Advisor(s)
Abstract(s)
This work evaluated phenolic compounds in Physalis peruviana as
well as their antioxidant activity and bioaccessibility, using an
in vitro model of the gastrointestinal system. Three combinations
of solvents were evaluated for the extraction of phenolic com-
pounds. All other chemical components, their antioxidant activity
and bioaccessibility were evaluated using established methods.
P. peruviana is rich in fiber (4.61 g/100 g), vitamin C (26.70 mg/
100 g), carotenoids (5.95 µg/100 g), total phenolic compounds
(59.9 mgGAE/100 g), flavonoids (0.340 mgQE/10 g) and ortho-
diphenols (94.6 mgGAE/100 g). The antioxidant activity varied
from 7.7 to 13.7 µmolTE/g. The simulation of the digestive tract
showed that only about 40-50% of the phenolic compounds
remained available for intestinal absorption, and only 23 – 34%
of the antioxidant activity was preserved after passing through
the gastrointestinal system. Hence, these ratios have to be taken
into consideration regarding the ingestion of phenolic com-
pounds in order to expect desired health benefits for the
human body, namely in terms of antioxidant activity.
Description
Keywords
Physalis peruviana extraction phenolic compounds bioaccessibility antioxidant activity
Citation
Guiné RPF, Gonçalves FJA, Oliveira SJ, Correia PMR (2020) Evaluation of Phenolic Compounds, Antioxidant Activity and Bioaccessibility in Physalis Peruviana L.. International Journal of Fruit Science, 20(S2), S470-S490.