Phytochemical screening and antimicrobial activities of Periploca aphylla Decne, Persian walnut (Juglans regia L.) and oleander (Nerium indicum Mill.) Leaf extracts

Einali, Alireza; Azizian-Shermeh, Omid; Ghasemi, Ali

doi:10.1007/s11694-018-9749-9

Cited by 10 publications

(6 citation statements)

References 59 publications

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“…The antioxidant activities of the extracts were evaluated by the radical scavenging capacity measuring method by the 2-2,diphenyl-1-picryl-hydrazide (DPPH) stable radical (Einali et al 2018). At first, a concentration of 1000 μg/ ml was prepared from all extracts and was added to 1 ml DPPH methanolic solution at a concentration of 0.1 mM.…”

Section: Evaluation Of Antioxidant Activity By Dpphmentioning

confidence: 99%

“…The solution was placed for 30 min in a dark place at room temperature. Subsequently, the absorbance of the samples was read by the UV-Vis spectroscopy at 765 nm (Einali et al 2018). Gallic acid was used as the standard for drawing the calibration curve, and the total phenol content was reported based on the equivalent of mg of gallic acid per g of the extract.…”

Section: Determination Of the Total Phenolic Contentmentioning

confidence: 99%

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Phytochemical investigation and phytosynthesis of eco-friendly stable bioactive gold and silver nanoparticles using petal extract of saffron (Crocus sativus L.) and study of their antimicrobial activities

et al. 2019

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In this study, aqueous extract of saffron petal was used to synthesize gold nanoparticles (GNPs) and silver nanoparticles (SNPs). The antioxidant activity, phenol, flavonoids, anthocyanin, and carotenoids were measured in methanol, ethanol, and water extracts to assess the reducing potential. After extracting, for the phytosynthesis of GNPs and SNPs, the extract was added to the solutions of gold (III) and silver nitrate at a concentration of 1 mM. The effective parameters for the synthesis, i.e., pH of reaction solution, extract volume, metal ion concentration, and reaction time, were optimized by UV-Vis spectroscopy technique, and the nanoparticles (NPs) were characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Antimicrobial activities of extracts, GNPs, and SNPs were investigated against Staphylococcus aureus, Bacillus cereus, Escherichia coli, Aspergillus, and Candida albicans. The results shown that the aqueous extract although exhibiting less antioxidant activity than other extracts, but have a high potential for reducing and stabilizing of metal ions to synthesis NPs. In addition, the NPs had a uniform spherical shape with an average of 17-22 nm for GNPs and 10-14 nm for SNPs. These sizes are useful for inhibiting many bacteria, so that according to the results of this study, phytosynthesized nanoparticles could inhibit all bacteria that had used, and this inhibitory effect on SNPs was greater than GNPs. According to the results of this study, plants are high potential for the synthesis of metal NPs, which can be used as an antibiotic to inhibit many pathogenic bacteria and fungi.

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Section: Evaluation Of Antioxidant Activity By Dpphmentioning

confidence: 99%

Section: Determination Of the Total Phenolic Contentmentioning

confidence: 99%

Phytochemical investigation and phytosynthesis of eco-friendly stable bioactive gold and silver nanoparticles using petal extract of saffron (Crocus sativus L.) and study of their antimicrobial activities

et al. 2019

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“…Ethanol is another solvent used in some investigations for the preparation of walnut leaf extracts. According to the study of Einali, et al [149], they evaluated the antioxidant and antimicrobial activities of ethanol and water extracts of P. aphylla , Persian walnut, and oleander leaves. The ethanol extracts with the highest amount of total phenolics and flavonoids in all assays showed the highest antioxidant and antimicrobial activities compared to water extracts.…”

Section: The Solvents Used For the Preparation Of Walnut Extractsmentioning

confidence: 99%

“…In another study, the antioxidant and antimicrobial activities of the prepared ethanol and water extracts from the leaves of three plants, namely P. aphylla , Persian walnut, and oleander, were evaluated. The results showed that in all assays, the ethanol extracts had the highest amount of total phenolics and flavonoids, as well as highest antioxidant and antimicrobial activities when compared to the water extracts [149].…”

Section: Total Antioxidant Contentmentioning

confidence: 99%

A Comparative Review on the Extraction, Antioxidant Content and Antioxidant Potential of Different Parts of Walnut (Juglans regia L.) Fruit and Tree

et al. 2019

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As a valuable tree nut, walnut is a well-known member of the Juglandaceae family. The fruit is made up of an outer green shell cover or husk, the middle shell which must be cracked to release the kernel, a thin layer known as skin or the seed coat, and finally, the kernel or meat. The nutritional importance of walnut fruit is ascribed to its kernel. The shell and husk are burned as fuel or discarded away as waste products. In the past two decades, the evaluation of the phenolic content and antioxidant activity of different parts of walnut has received great interest. In this contribution, the recent reports on the extraction and quantification of phenolic content from each part of the walnut tree and fruit using different solvents were highlighted and comparatively reviewed. The current review paper also tries to describe the antioxidant content of phenolic extracts obtained from different parts of the walnut tree and fruit. Additionally, the antioxidant and antiradical activities of the prepared extracts have also been discussed.

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“…Insecticidal activity of N. oleander has long been recognized, the insecticidal principles of the leaves are their cardenolides such as cardiac glycosides kaneroside, alpha -L-olendroside -5α-adynerin ,digitoxigenin, neriumoside and other lycosides. (Rajendra et al, 2013), flavonoids and phenolics, showed strong antioxidant and antimicrobial activities , (Einali et al, 2018). trypsin inhibitors, oxalates alkaloids, cardiac glycosides, cyanogenic glycosides, phytates, haemagglutinins (lectins), saponins, tannins, and gossypol, (Kgosana, 2019).…”

Section: Discussionmentioning

confidence: 99%

Insecticidal potential of some plant extracts in nano and normal form on immatures stages of red palm weevil Rhynchophorus ferrugineus

Ali

Mohanny

Mohamed

et al. 2020

SVU-International Journal of Agricultural Sciences

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Phytochemical screening and antimicrobial activities of Periploca aphylla Decne, Persian walnut (Juglans regia L.) and oleander (Nerium indicum Mill.) Leaf extracts

Cited by 10 publications

References 59 publications

Phytochemical investigation and phytosynthesis of eco-friendly stable bioactive gold and silver nanoparticles using petal extract of saffron (Crocus sativus L.) and study of their antimicrobial activities

Phytochemical investigation and phytosynthesis of eco-friendly stable bioactive gold and silver nanoparticles using petal extract of saffron (Crocus sativus L.) and study of their antimicrobial activities

A Comparative Review on the Extraction, Antioxidant Content and Antioxidant Potential of Different Parts of Walnut (Juglans regia L.) Fruit and Tree

Insecticidal potential of some plant extracts in nano and normal form on immatures stages of red palm weevil Rhynchophorus ferrugineus

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