Antioxidant Properties Associated with the Biochemical Changes in the Development of African Pear (Dacryodesedulis) Fruit
Journal Title: Saudi Journal of Biomedical Research - Year 2018, Vol 3, Issue 2
Abstract
Abstract:The antioxidant properties of oil and fruit extracts of Dacryodesedulis (African pear) from four weeks after anthesis (WAA) to fruit maturation were assessed in this study. The oils from the fruits were extracted with chloroform-methanol 1:2 (v/v) using standard procedures. The in vitro antioxidant capacity of the oil extracts was determined by spectrophotometric methods using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical, H2O2 and malondialdehyde (MDA) assays. Results from the study indicated that DPPH and H2O2 scavenging capacity as well as percentage inhibition of MDA were significantly (P˂0.05) higher in oil at 20 WAA (45.47%, 45.1%, 18.3%),but with significant (P˂0.05) lesser percentage of inhibition at 4-12 WAA. The hepatoprotective effects of the extracts were examined in vivo in male wistar rats challenged with sodium arsenate. Results showed that the rats fed with the oil WAA had significant reduction (p<0.05) in lipid peroxidation, increase in superoxide dismutase (SOD) and catalase (CAT) activities especially relative to control values. African walnutextracts treated rats also showed similar decrease in serum AST (70.3±2.54U/L), ALT (63.7±2.34U/L±), ALP (59.3±0.60U/L) and GGT (230.8±1.12U/L) levels at 20 WAA when compared to 4 WAA extracts treated rats, AST (105.2±1.38U/L), ALT (73.0±1.12U/L), ALP (72.0±2.26U/L) and GGT (299.7±1.88U/L). The results suggest that the various fruit extracts possess varied degrees of potent antioxidant activity both in vitro and in vivo and may serve as important sources of antioxidants in food, cosmetics and pharmaceutical industries. Keywords:Dacryodesedulis, antioxidants, sodium arsenate, hepatoprotective.
Authors and Affiliations
EsosaSamuel Uhunmwangho, Ehimwenma Sheena Omoregie
Keywords
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