Abstract
Background: Aromatic and medicinal plants have been used to substitute synthetic drugs with natural bioactive products.
Objective: The current investigation was conducted to evaluate phenol and flavonoid contents, antibacterial, antioxidant, and anti-hypertensive potentials of three extracts of Margotia gummifera aerial parts.
Methods: The antibacterial effect was assessed using the wells agar diffusion method against 11 strains. The antioxidant effect was evaluated using different methods, 2, 2-diphenyl-1-picrylhydrazyl, total antioxidant capacity, ferric reducing ability power, cupric reducing antioxidant capacity, and β-carotene/linoleic acid bleaching assay. The anti-hypertensive activity was performed using hippuryl-histidyl-leucine substrates.
Results: The highest yield, i.e., 19.801%, was obtained by the hydro-methanolic extract. However, ethyl acetate extract seemed to be rich in phenolic and flavonoid compounds compared to other extracts, i.e., 822.14±69.10 mg GAE g-1 ext. and 117.28±1.80 mg RE g-1 ext., respectively. The high free radical scavenging activity was mentioned in ethyl acetate extract with IC50 of 48.820±1.25 μg/ml. The same extract showed better antioxidant activity in all tested procedures. In antibacterial activity, the hydro-methanolic extract exhibited moderate effect against all tested bacteria except Salmonella enterica and Enterococcus faecalis which gave 18±2.0 and 16±1.0 mm of inhibition, whereas it seemed to be inactive towards two Gram-negative bacteria. Concerning anti-hypertensive activity, all extracts can inhibit the Angiotensin-I Converting Enzyme, but the potential effect was given by hydro-methanolic and aqueous extracts, 97.75% and 96.65%, respectively.
Conclusion: It can be stated that the bioactive compounds of Margotia gummifera extracts had different biological activities, which confirm their therapeutic uses in traditional medicine.
Keywords: Antibacterial activity, antioxidant activity, anti-hypertensive activity, Margotia gummifera, Angiotensin-I, phenolic compounds.
Graphical Abstract
[http://dx.doi.org/10.1016/S0024-3205(00)00955-3] [PMID: 11205889]
[http://dx.doi.org/10.1007/s11746-998-0032-9]
[http://dx.doi.org/10.1002/emmm.201000073] [PMID: 20535745]
[http://dx.doi.org/10.1016/S1383-5718(02)00128-6] [PMID: 12160896]
[http://dx.doi.org/10.9755/ejfa.2015.04.030]
[http://dx.doi.org/10.1080/19476337.2015.1022228]
[http://dx.doi.org/10.1590/fst.09118]
[http://dx.doi.org/10.1016/j.acvd.2011.08.002] [PMID: 22117907]
[http://dx.doi.org/10.1590/S0102-695X2006000300021]
[http://dx.doi.org/10.3390/ijms17070797] [PMID: 27347925]
[http://dx.doi.org/10.3136/fstr.20.711]
[http://dx.doi.org/10.1161/01.HYP.0000205119.19804.08] [PMID: 16446387]
[http://dx.doi.org/10.4103/phrev.phrev_45_16] [PMID: 28503045]
[http://dx.doi.org/10.1080/10408398.2011.651176] [PMID: 24915402]
[http://dx.doi.org/10.1016/S0031-9422(00)94658-2]
[http://dx.doi.org/10.1016/0031-9422(79)80044-8]
[http://dx.doi.org/10.1246/cl.1984.247]
[PMID: 26417224]
[PMID: 7884635]
[http://dx.doi.org/10.1006/abio.1999.4019] [PMID: 10222007]
[http://dx.doi.org/10.1006/abio.1996.0292] [PMID: 8660627]
[http://dx.doi.org/10.1016/j.biortech.2007.08.058] [PMID: 17920880]
[http://dx.doi.org/10.1080/13880200600713808]
[http://dx.doi.org/10.1080/09637480600798132] [PMID: 17135020]
[http://dx.doi.org/10.1016/j.foodchem.2008.05.009]
[http://dx.doi.org/10.1186/1472-6882-12-221] [PMID: 23153304]
[http://dx.doi.org/10.5937/leksir1535141M]
[http://dx.doi.org/10.1016/0891-5849(95)02227-9] [PMID: 8743980]
[http://dx.doi.org/10.1093/ajcn/81.1.230S] [PMID: 15640486]
[http://dx.doi.org/10.2298/ABS1401401M]
[http://dx.doi.org/10.1093/jn/133.9.2812] [PMID: 12949370]
[http://dx.doi.org/10.3390/medicines5020026] [PMID: 29565294]
[http://dx.doi.org/10.1016/j.indcrop.2011.03.018]
[http://dx.doi.org/10.3109/13880209.2013.775594] [PMID: 23742701]
[http://dx.doi.org/10.1007/s11746-998-0248-8]
[http://dx.doi.org/10.1016/j.indcrop.2015.11.018]
[http://dx.doi.org/10.3329/bjp.v12i2.29668]
[http://dx.doi.org/10.7897/2277-4572.0320121]
[http://dx.doi.org/10.1515/CCLM.2002.042] [PMID: 12005216]
[http://dx.doi.org/10.1016/j.acvd.2012.02.010] [PMID: 22800722]
[http://dx.doi.org/10.5897/JMPR2015.6043]
[http://dx.doi.org/10.17795/jjnpp-17255]
[http://dx.doi.org/10.1142/S0192415X02000107] [PMID: 12067101]
[http://dx.doi.org/10.22159/ajpcr.2017.v10s5.23123]
[http://dx.doi.org/10.1271/bbb.70277] [PMID: 17827680]
[http://dx.doi.org/10.3390/md15100311] [PMID: 29027934]
[http://dx.doi.org/10.1016/j.foodchem.2007.12.023] [PMID: 26054270]
[http://dx.doi.org/10.1021/jf4001378] [PMID: 23566262]
[http://dx.doi.org/10.3390/nu9040316] [PMID: 28333109]
[http://dx.doi.org/10.1016/S0024-3205(03)00481-8] [PMID: 12865094]
[http://dx.doi.org/10.1016/j.fitote.2007.02.007] [PMID: 17513067]
[http://dx.doi.org/10.1021/jf404641v] [PMID: 24219111]