Bioactive content and antioxidant capacity of Cape gooseberry fruit |
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Authors: | Otakar Rop Jiri Mlcek Tunde Jurikova Magdalena Valsikova |
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Institution: | (1) Laboratory of Biochemistry, UR “Human Nutrition and Metabolic Disorders” Faculty of Medicine, 5019 Monastir, Tunisia;(2) Laboratory of Characterization and Quality of Olive Oil, Centre of Biotechnology of Borj Cedria, BP 901-2050, Hammam-Lif, Tunisia;(3) Institute of Olive Tree, Sousse, Tunisia |
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Abstract: | At present, Cape gooseberry (Physalis peruviana) fruit is one of the less used raw materials of plant origin, which can be used for human nutrition. This fruit, as well
as alimentary products made of it, were used by healers in folk medicine in the distant past. The aim of this study was to
monitor and evaluate the antioxidant capacity of fresh fruit of three Cape gooseberry cultivars ‘Giant’, ‘Golden berry’ and
‘Inka’. Antioxidant capacity was also tested, on the basis of the scavenging effect of reactive oxygen species (ROS) and lipid
peroxidation of methanolic extracts made of fresh fruit. These results were further extended and supplemented with determinates
of the vitamin C and total phenolic contents. These analyses were made for three consecutive years. The highest values of
antioxidant capacity were observed in the ‘Inka’ cultivar (9.31 grams of ascorbic acid equivalents kg−1 of fresh mass). In this cultivar, the obtained results were corroborated also in ROS and the contents of vitamin C and total
phenolics. Due to a high antioxidant capacity of this fruit species, the results presented should increase its popularity
above all as a promising raw material, which can be used for human nutrition. |
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