نتایج جستجو برای: antioxidant and cytotoxic properties

تعداد نتایج: 16951360  

Journal: :Nanomaterials 2023

In this study, bimetallic nanoparticles (NPs) of silver (Ag) and zinc oxide (ZnO) were synthesized using Leptadenia pyrotechnica leaf extract for the first time. Monometallic NPs also obtained comparison. The characterization prepared was carried out various techniques, including UV-Visible spectroscopy (UV-Vis), scanning electron microscopy (SEM), X-ray diffraction (XRD). latter confirmed crys...

Journal: :Indian journal of biochemistry & biophysics 2009
C R Pawar R E Mutha A D Landge R B Jadhav S J Surana

Antioxidant and cytotoxic activities of the methanolic and aqueous extracts of Caesalpinia pulcherrima wood were studied in in vitro models. Both extracts exhibited strong antioxidant activity, as evidenced by the low IC50 values in both 1,1-diphenyl-2-picryl hydrazyl (DPPH), nitric oxide and superoxide scavenging methods; the values were found to be less or comparable to those of gallic acid, ...

2013
Md. Sekendar Ali Kazi Omar Faruq Md. Aziz Abdur Rahman Md. Aslam Hossain

The methanol extract of leaves of Urena lobata (L) (Malvaceae) has been selected to determine the antioxidant and cytotoxic potentials. The crude extract were tested for in vitro free radical scavenging assays such as 1, 1 diphenyl-2-picryl-hydrazyl (DPPH). Total phenolic and flavonoids content of U. lobata were analyzed. The sample effectively scavenged free radical at all different concentrat...

2015
Hooi-Leng Ser Nurul-Syakima Ab Mutalib Wai-Fong Yin Kok-Gan Chan Bey-Hing Goh Learn-Han Lee

Streptomyces pluripotens MUSC 137 was isolated from mangrove soil obtained from Tanjung Lumpur, Pahang, Malaysia. We investigated the phylogenetic, genomic, biochemical, and phenotypic characteristics of this strain. Uniquely adapted microorganisms from mangrove habitats have previously yielded compounds of biopharmaceutical interest. In order to examine the bioactivities possessed by the strai...

Journal: :Molecules 2015
Osman Tuncay Agar Miris Dikmen Nilgun Ozturk Mustafa Abdullah Yilmaz Hamdi Temel Fatma Pinar Turkmenoglu

Turkey is one of the most important centers of diversity for the genus Achillea L. in the world. Keeping in mind the immense medicinal importance of phenols, in this study, three species growing in Turkey, A. coarctata Poir. (AC), A. kotschyi Boiss. subsp. kotschyi (AK) and A. lycaonica Boiss. & Heldr. (AL) were evaluated for their phenolic compositions, total phenolic contents (TPC), antio...

Journal: :Molecules 2012
Luis E Diaz Diego R Munoz Rosa E Prieto Sergio A Cuervo Diego L Gonzalez Juan D Guzman Sanjib Bhakta

Phenolic compounds are widely distributed in Nature and act as pharmacologically active constituents in many herbal medicines. They have multiple biological properties, most notably antioxidant, antibacterial and cytotoxic activities. In the present study an attempt to correlate the phenolic composition of leaf, flower and wood extracts of Piper imperiale, with antioxidant, antitubercular and c...

2016
Uilson P Santos Jaqueline F Campos Heron Fernandes V Torquato Edgar Julian Paredes-Gamero Carlos Alexandre Carollo Leticia M Estevinho Kely de Picoli Souza Edson Lucas Dos Santos

Hancornia speciosa Gomes (Apocynaceae) is a fruit tree, popularly known as mangabeira, and it is widely distributed throughout Brazil. Several parts of the plant are used in folk medicine, and the leaf and bark extracts have anti-inflammatory, antihypertensive, antidiabetic, and antimicrobial properties. In this study, we investigated the chemical composition of the ethanolic extract of Hancorn...

2011
Taha S. El-Alfy Hamida M. A. El-Gohary Nadia M. Sokkar Mohammed Hosny Dalia A. Al-Mahdy

A major development over the past two decades has been the realization that free radical induced lipid peroxidation and DNA damage are associated with major health problems, e.g. cancer and ageing. Plant-derived antioxidants are increasingly found beneficial in protecting against these diseases. Celtis australis L. and Celtis occidentalis L. are two plants that have a variety of uses in folk me...

Journal: :Journal of the Korea Academia-Industrial cooperation Society 2008

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1377

this thesis deals essentially (but not from all aspects) with the extension of the notion of semigroup compactification and the construction of a general theory of semitopological nonaffine (affine) transformation semigroup compactifications. it determines those compactification which are universal with respect to some algebric or topological properties. as an application of the theory, it is i...

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