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Dose-response relationship in the elimination of DPPH radicals from extracts with methanol of R. aromatica fruits. Values are shown as the mean ± SD (n = 3). Means with different letters at the same concentration are significantly different (Tukey's test, p < 0.05).
Source publication
Rhus aromatica inhabits humid oak and oakpine forests in the State of Michoacán (Mexico). The fruit of R. aromatica is edible and is traditionally used in the preparation of soft drinks, ice pops, ice creams and ‘atole’. The objective of the present investigation was to carry out a physical and chemical characterization and analysis of the antioxid...
Context in source publication
Context 1
... Figs. 3-5, the antioxidant capacity in dose response is shown; most of the extracts presented a DPPH free radical scavenging capacity greater than 60 % at concentrations of 4 μg/mL, except for the extracts with pure acetone and 80 % acetone. The best values of radical elimination capacity (greater than 80 %) were obtained with 6 μg/mL from the ...
Citations
... No reports were found regarding total tannins in R. typhina fruits, but for other species of the same genus, lower TTC was reported by Agouram et al. (2023) [85] in fruits of R. pentaphylla (11.69 ± 0.19 mg/g). No reports were found regarding carotenoids in R. typhina fruits, but for other species of the same genus, similar results were obtained in R. aromatica fruits (46.37 ± 3.27 mg/100 g) [87]. Wu et al. (2013) [86] reported an antioxidant activity measured by FRAP of 79.95 µmol AAE/g DW for a 1% HCl-acidified ethanol extract from R. typhina fruits. ...
Rhus typhina, an invasive plant species, contains valuable compounds that can be utilized in various fields. The main aim of this paper was to find the optimal conditions for extracting high amounts of bioactive compounds from R. typhina fruits using ultrasound-assisted and bead-beating techniques under different parameters (solvent concentration, solvent/solid ratio, extraction time, bead size, and material). A Box–Behnken design was applied for ultrasound-assisted extraction. The following process parameters were found to be optimal: 20/1 solvent/solid ratio (v/w), 61.51% aqueous ethanol, 10 min extraction time, with a composite desirability of 0.7719. The HPLC profile indicates that p-coumaric acid was the most abundant phenolic compound found in the BBE extract. The BBE extract was subjected to in vitro biological tests. The results indicate a high antimicrobial activity on Streptococcus pyogenes (20 mm inhibition zone) and Salmonella enterica (12 mm inhibition zone). A hemolysis rate of 19.85% was found at an extract concentration of 1000 µg/mL on sheep erythrocytes. We report for the first time the protective role of the extract on cell viability of human gingival fibroblasts, but also a weak antiproliferative effect on the HepG2 human liver cancer cell line. Overall, we conclude that R. typhina fruits are rich in bioactive compounds that can be recovered using proper extraction conditions. Further research is required to understand and valorize their biological potential.
