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Cited by 14 publications
(9 citation statements)
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References 29 publications
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“…Previously, it was reported that G. trichotoma displayed better activity by ABTS and DPPH assays compared to G. perfoliata. In addition, it was reported that G. pilulifera is capable of scavenging DPPH radical and verbascoside is the main compound responsible for this action in methanol extract (Chima, Nahar, Majinda, Celik, & Sarker, 2014).…”
Section: As Shown Inmentioning
confidence: 99%
“…Previously, it was reported that G. trichotoma displayed better activity by ABTS and DPPH assays compared to G. perfoliata. In addition, it was reported that G. pilulifera is capable of scavenging DPPH radical and verbascoside is the main compound responsible for this action in methanol extract (Chima, Nahar, Majinda, Celik, & Sarker, 2014).…”
Section: As Shown Inmentioning
confidence: 99%
“…In the DPPH assay (Chima et al, ), sample P25 (collected from Uzbekistan) had the highest capability to scavenge DPPH free‐radical with a RC 50 value of 136.39 µg/mL (Table ). Samples collected from the same cultivation region (Afghanistan) displayed significant differences in the DPPH radical scavenging activity as shown by the samples P12 (RC 50 = 336.70 µg/mL) and P14 (IC 50 = 712.46 µg/mL).…”
Section: Resultsmentioning
confidence: 99%
“…The capacity of samples to scavenge DPPH radicals (DPPH • ) was assessed as previously reported (Takao et al, ) with suitable modifications (Kumarasamy et al, ; Chima et al, ). DPPH (4 mg) was dissolved in MeOH (50 mL) to obtain a concentration of 80 µg/mL.…”
Section: Methodsmentioning
confidence: 99%
“…The combined fractions BMBH1-5 was subjected to multiple CC on silica gel to yield lupeol (5.6 mg). The anti-oxidant activity was determined using DPPH free radical scavenging assay as described previously with minor modifications (Shimada et al, 1992;Chima et al, 2014 AChE inhibitory activity of the compounds was measured by slightly modifying the spectrophotometric method (Ellman et al, 1961;Salleh et al, 2016b). Electric eel AChE was used, while acetylthiocholine iodide (AChI) was employed as the substrate of the reaction.…”
Section: Extraction and Isolationmentioning
confidence: 99%
“…The results are shown in Table 2. The free radical scavenging activity was evaluated by the DPPH assay with a series of different concentrations (Chima et al, 2014).…”
mentioning
confidence: 99%