Phytochemical analysis of non-polar solvent extracts of the<i>Wisteria sinensis</i>leaves

Rokosz, Paulina; Stachowicz, Karolina; Kwiecień, H.

doi:10.1080/14786419.2017.1416375

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…Phenolic acids, flavonoids, tannins, alkaloids, etc., can be extracted in polar or less polar solvents [ 19 ]. In comparison, components of essential oils and tocopherol can be obtained through extraction in nonpolar solvents [ 20 ]. Thus, solvent-based plant extracts can help us to reach the specific group of plant compounds that is responsible for the synthesis of nanoparticles with high bactericidal activity, stability, and dispersity.…”

Section: Introductionmentioning

confidence: 99%

Solvent based fractional biosynthesis, phytochemical analysis, and biological activity of silver nanoparticles obtained from the extract of Salvia moorcroftiana

Khan,

Wahab

et al. 2023

PLoS ONE

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Multi-drug resistant bacteria sometimes known as “superbugs” developed through overuse and misuse of antibiotics are determined to be sensitive to small concentrations of silver nanoparticles. Various methods and sources are under investigation for the safe and efficient synthesis of silver nanoparticles having effective antibacterial activity even at low concentrations. We used a medicinal plant named Salvia moorcroftiana to extract phytochemicals with antibacterial, antioxidant, and reducing properties. Three types of solvents; from polar to nonpolar, i.e., water, dimethyl sulfoxide (DMSO), and hexane, were used to extract the plant as a whole and as well as in fractions. The biosynthesized silver nanoparticles in all extracts (except hexane-based extract) were spherical, smaller than 20 nm, polydispersed (PDI ranging between 0.2 and 0.5), and stable with repulsive force of action (average zeta value = -18.55±1.17). The tested bacterial strains i.e., Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus, and Enterococcus faecalis were found to be sensitive to even small concentrations of Ag-NPs, especially P. aeruginosa. The antibacterial effect of these Ag-NPs was associated with their ability to generate reactive oxygen species. DMSO (in fraction) could efficiently extract antibacterial phytochemicals and showed activity against MDR bacteria (inhibition zone = 11–12 mm). Thus, the antibacterial activity of fractionated DMSO extract was comparable to that of Ag-NPs because it contained phytochemicals having solid antibacterial potential. Furthermore, Ag-NPs synthesized from this extract owned superior antibacterial activity. However, whole aqueous extract-based Ag-NPs MIC was least (7–32 μg/mL) as compared to others.

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Section: Introductionmentioning

confidence: 99%

Solvent based fractional biosynthesis, phytochemical analysis, and biological activity of silver nanoparticles obtained from the extract of Salvia moorcroftiana

Khan,

Wahab

et al. 2023

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Phenolic acids, flavonoids, tannins, and alkaloids etc., can be extracted in polar or less polar solvents (10). In comparison, components of essential oils and tocopherol can be obtained through extraction in nonpolar solvents (11). Thus, solvent based plant extracts can help us to reach the specific group of plant compounds that is responsible for the synthesis of nanoparticles with high bactericidal activity, stability, and dispersity.…”

Section: Introductionmentioning

confidence: 99%

Solvent based fractional biosynthesis, phytochemical analysis and biological activity of silver nanoparticles obtained from extract ofSalvia moorcroftiana

Khan¹,

Khan²,

Aasim³

et al. 2023

Preprint

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Multi-drug resistant bacteria sometimes known as “superbugs” developed through overuse and misuse of antibiotics are determined to be sensitive to small concentrations of silver nanoparticles. Various methods and sources are under investigation for the safe and efficient synthesis of silver nanoparticles having effective antibacterial activity even at low concentrations. We used a medicinal plant named Salvia moorcroftiana to extract phytochemicals with antibacterial, antioxidant, and reducing properties. Three types of solvents; from polar to nonpolar, i.e., water, dimethyl sulfoxide (DMSO), and hexane, were used to extract the plant as a whole and as well as in fractions. The biosynthesized silver nanoparticles in all extracts (except hexane-based extract) were spherical, smaller than 20 nm, polydispersed (PDI ranging between 0.2 and 0.5), and stable with repulsive force of action (average zeta value = -18.55±1.17). The tested bacterial strains i.e., Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus, and Enterococcus faecalis were found to be sensitive to even small concentrations of AgNPs, especially P. aeruginosa. The antibacterial effect of these AgNPs was associated with their ability to generate reactive oxygen species. DMSO (in fraction) could efficiently extract antibacterial phytochemicals and showed activity against MDR bacteria (inhibition zone = 11-12 mm). Thus, the antibacterial activity of fractionated DMSO extract was comparable to that of AgNPs because it contained phytochemicals having solid antibacterial potential. Furthermore, AgNPs synthesized from this extract owned superior antibacterial activity. However, whole aqueous extract based AgNPs MIC was least (7-32 µg/mL) as compared to others.

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“…Cogn, Luffa cylindrica (L.) Roem, and Cucurbita pepo L. have been consumed in China for decades, and are commonly considered to be vegetables. Previous studies have mainly focused on the phytochemical composition of W. sinensis leaves (Rokosz et al, 2018), B. hispida fruits (Han et al, 2013;Islam et al, 2021), L. cylindrica seeds (Yoshikawa et al, 1991;Al-Snafi, 2019), and C. pepo fruits (Kulczyński and Gramza-Michałowska, 2019). Phytochemical analysis has revealed that these plants are rich in flavonoids, phenolic acids, tannins, α-tocopherol, and other antioxidants.…”

Section: Introductionmentioning

confidence: 99%

Phenolic contents and antioxidant activities of solvent extracts from four edible flowers

Yan¹,

Zhou²,

Zhao³

et al. 2022

IFRJ

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In order to identify new sources of natural antioxidants, the antioxidant activities of various solvent extracts from four edible flower samples [Wisteria sinensis (Sims) DC., Benincasa hispida (Thunb.) Cogn, Luffa cylindrica (L.) Roem, and Cucurbita pepo L.) were systemically investigated. The total phenolic content (TPC) and total flavonoid content (TFC), and individual phenolic profile of each extract were investigated, and antioxidant activities were measured by the DPPH radical scavenging activity, superoxide radical scavenging activity, total reduction capability, and ferrous ions chelating activity. Results revealed that all flower extracts exhibited antioxidant activities, and contained certain amounts of phenolic compounds. Specifically, different solvents exhibited different efficiencies in the extraction of phenolics, flavonoids, and compounds with antioxidant activities. The 70% ethanolic extract from B. hispida yielded the highest TPC (49.92 mg GAE/g DW), superoxide radical scavenging activity (IC50, 0.073 mg/mL), and FRAP value (18.05 mg of GAE/g DW). The highest TFC was obtained with the ethanolic extract of W. sinensis (30.39 mg QE/g DW), and the contents of apigenin, luteolin, and myricetin in the ethanolic extract of W. sinensis were significantly higher than those in the other extracts. The 40% ethanolic extract of L. cylindrica yielded the highest DPPH scavenging capacity (IC50, 0.340 mg/mL), and water extract of B. hispida yielded the highest chelating activity (0.027 mg/mL). Correlation analysis indicated that total phenolics and flavonoids in the extracts were the major contributors to the DPPH scavenging activities and FRAP activities. Overall, results demonstrated that these edible flowers could serve as useful source of natural antioxidants, and be used as functional food ingredients.

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Phytochemical analysis of non-polar solvent extracts of theWisteria sinensisleaves

Cited by 3 publications

References 6 publications

Solvent based fractional biosynthesis, phytochemical analysis, and biological activity of silver nanoparticles obtained from the extract of Salvia moorcroftiana

Solvent based fractional biosynthesis, phytochemical analysis, and biological activity of silver nanoparticles obtained from the extract of Salvia moorcroftiana

Solvent based fractional biosynthesis, phytochemical analysis and biological activity of silver nanoparticles obtained from extract ofSalvia moorcroftiana

Phenolic contents and antioxidant activities of solvent extracts from four edible flowers

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