A study on antimicrobial, antioxidant and antimutagenic activities of <i>Elaeagnus Angustifolia</i> L. Leaves

Abstract

Backround: The aim of this work was to investigate the antimicrobial, antioxidant, and antimutagenic potentials of methanol extracts from E. angustifolia. Materials and Methods: Methanol extracts were screened for antimicrobial activity against different species of 4 Gram positive and 3 Gram negative bacteria and one fungus. These bacteria included food pathogens. The leaf extract was tested using disc diffusion assay. Results: The methanol extract of E. angustifolia showed maximum inhibition zone of 16 mm against Yersinia enterocolitica. Whereas, the inhibition zone was not determined by methanol extract against Escherichia coli ATCC 1122 and Candida albicans RSKK 02029. The MIC was evaluated on plant extracts as antimicrobial activity. All of bacterial strains showed the lowest sensitivity to methanol extract of E. angustifolia (3.5 mg/mL), except Yersinia enterocolitica NCTC 11174. In addition, the plant extracts were tested against the stable DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) free-radical. Finally, the methanol extract displayed a strong antioxidant activity (Trolox equivalent = 1.49 mM). Also, E. angustifolia methanol extracts were screened for their antimutagenic activity against sodium azide by Ames test in absence of rat microsomal liver enzyme (-S9). The results showed that E. angustifolia methanol extracts can inhibit mutagenic agents of sodium azide. The plant leaf extracts with the inhibition of 36% sodium azide showed moderate potential in decreasing mutagenic agents in Salmonella typhimurium TA100. Conclusion: E. angustifolia methanol extracts have antimicrobial, antioxidant and antimutagenic potential.

A comprehensive review on phytochemical and pharmacological aspects of Elaeagnus angustifolia L.

“…In-vitro investigation showed that ABTS (2, 2′-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid)) scavenging effect of leaf methanol extract (100 mg/ml) was 84% by ABTS decolorization assay. [29,30] Various fractions, particularly hydroethanolic fraction, obtained from the fruits demonstrated radical scavenging activity. [34] Wang et al reported that flavonoid glycosides, quercetin 3,…”

Essential Oil from Flowers and Leaves of Elaeagnus Angustifolia (Elaeagnaceae): Composition, Radical Scavenging and General Toxicity Activities

“…7 Some of them were proven to exhibit anti-inflammatory, 1,8 muscle relaxant activity, 9 anti-ulcerogenic, 10 antimicrobial, [11][12][13][14] antinociceptive, 15,16 antitumor, 17,18 and antioxidant effects. 11,12,14,[19][20][21] Likewise, the whole fruit and medulla powder of E. angustifolia showed positive effect in improving pain, stiffness and physical function in women with osteoarthritis of the knee. 22,23 In Azarbaijan province folk medicine, the fruit and flower preparations have been used for healing jaundice, asthma, flatulence, vomiting and nausea.…”

Untitled

“…Flavonoids are well known effective antioxidants mainly because they scavenge superoxide anions. Robak and Glyglewski 33 .…”