Investigation of antimicrobial properties and chemical composition of different extracts of Sweet gum leaves (Liquidambar orientalis)

Abstract

Different extracts of Liquidambar orientalisleaves were tested for their antimicrobial activity against eleven bacterial and one yeast strain by disc diffusion method. The antimicrobial activity was measured by disc diffusion and MIC. After that among extracts the best antimicrobial activity was detected.Volatile components of the ethanolic extracts of leaves of sweetgum analysed by GC/MS. Ethanolic extracts of sweetgum leaves showed the best inhibition zones against Klebsiella pneumoniae (32mm). K.pneumoniae CCM 2318 showed the lowest sensitivity to 0.008 mg/mL concentration of ethanolic extracts. Ethanolic extracts of L. orientalis var. orientalis were showed the best antimicrobial activity MIC values of ethanolic extracts ranging from 0.008-64 mg.mL-1 to the tested bacteria. The GC/MS analyses allowed seven compounds to be determined; benzenepropanol (%49.30) and cinnamic acid (%35.89) were the main constituents of the of sweetgum leaves extract. All the extracts of L. orientalis leaves showed varying degrees of antimicrobial activity on the microorganisms tested. The antimicrobial activity was due to the presence the essential oils. Among the tested extracts the ethanolic extracts were the most active against the microorganisms tested compared to the reference antibiotics.

GC-MS profiling of anticancer and antimicrobial phytochemicals in the vegetative leaf, root, and stem of Withania somnifera (L.) Dunal

“…The bioactive phytochemicals benzenemethanol, alpha-(1-aminoethyl)-in Ribwort plantain (Haghighi et al, 2022), 3-tert-butyl-5-chloro-2-hydroxybenzophenone in the Tamarindus indica (Fagbemi et al, 2021), cyclotetrasiloxane, octamethyl-in Olea europaea (Keskin et al, 2012), N-(Trifluoroacetyl)-N,O,O',O'-tetrakis (trimethylsilyl) norepinephrine in the red sea cucumber Holothuria atra (Soliman et al, 2016), cyclohexasiloxane, dodecamethyl-in Argemone ochroleuca (Moustafa et al, 2013), cycloheptasiloxane, tetradecamethyl-in Senna auriculata (Prasathkumara et al, 2021), cyclooctasiloxane, hexadecamethyl-in Sedum pallidum (Dahpour et al, 2012), heptasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13tetradecamethyl-in Olea europaea (Mukesi et al, 2019 in Moringa oleifera (Falowo et al, 2017) identified in previous studies to have antibacterial properties are identified in the methanolic extracts of W. somnifera vegetative stem. The phytochemicals in methanolic extracts of stem from W. somnifera, Cyclononasiloxane, octadecamethyl-, were found to be antibacterial as well as antifungal in Salvadora persica (Bratty et al, 2020), 3-amino-1,2-propanediol as antifungal in Solanum khasianum (Chirumamilla et al, 2022).…”

Synthesis, characterization, and evaluation of the antimicrobial activities of silver nanoparticles from Cyclotrichium origanifolium L.

“…In a study, AgNPs produced from the Sida cordifolia plant were reported to be effective on B. subtilis bacteria at the concentration of 6.25 mg/mL (Pallela et al, 2018). In another study, the MIC value of biological AgNPs produced from Streptomyces xinghaiensis OF1 strain for S. aureus was reported as 256 mg/mL (KESKİN & GÜVENSEN, 2022;Wypij et al, 2018).…”

Determination of free, esterified, bound bioactive compound contents of Euphorbia cyparissias organs and their biological activities

“…Therefore it is necessary to investigate alternative medicines or natural treatment methods to overcome such side-effects of current drugs. There are many studies in the literature describing the antidiabetic activity of plant extracts (Temiz, 2021;Keskin et al, 2022). There are investigations depicting that pomegranate (Alsataf et al, 2021) and Quercus infectoria (Başyiğit et al, 2020) display antidiabetic activity.…”