The aim of this study was to investigate the antioxidant activity using different in vitro assays and nitric oxide synthase activation property of crude water soluble polysaccharide from P. ostreatus. The polysaccharide was isolated by hot water extraction and physico-chemical investigation revealed that it contained high amount of carbohydrate (mostly β-glucan) and low amount of protein and ph...

Noise has been regarded as an environmental/occupational stressor that causes damages to both auditory and non-auditory organs. Prolonged exposure to these mediators of stress has often resulted in detrimental effect, where oxidative/nitrosative stress plays a major role. Hence, it would be appropriate to examine the possible role of free radicals in brain discrete regions and the "antioxidants...

Iron chlorin e6 (FeCe6) has recently been proposed to be potentially antimutagenic and antioxidative. However, the antioxidant property of FeCe6 has not been elucidated in detail. In this study, we investigated the ability of FeCe6 to scavenge hydroxyl radical and to protect biomolecules and mammalian cells from oxidative stress-mediated damage. In electron spin resonance (ESR) experiments, FeC...

Amorphophallus campanulatus, Alocasia indica and Colocasia esculenta are very popular for their edible corms and leaves, especially in Assam and Bengal and are cultivated there as common food crops. Besides, they are also considered as medicinal plants in Sushruta Samhita and Ayurveda. So, the ethanolic extracts of these tubers were screened for the presence of in vitro antioxidant potential ag...

The aim of this work was to investigate the antioxidant property of honeybee products and their constituents using an ESR method. Antioxidative activity was evaluated as the scavenging activity of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical. The DPPH radical scavenging activities, in descending order, were: ethanol extract of Chinese red propolis>ethanol extract of Brazilian green propolis>wat...

As a widely used antimicrobial additive in daily consumption, attention has been paid to the degradation and conversion of triclosan for a long time. The quantum chemistry calculation and the canonical variational transition state theory are employed to investigate the mechanism and kinetic property. Besides addition and abstraction, oxidation pathways and further conversion pathways are also c...

The present investigation was an attempt to evaluate the antioxidant and anticancer property of Anisaldehyde in vitro. Anisaldehyde is an organic compound that consists of a benzene ring substituted with an aldehyde and a methyl group. It is very effective as a carminative (to relieve gas pains). In this study, free radical scavenging activity was evaluated using DPPH (α,α-diphenyl-β-crylhydraz...

A ring R is radical if there is a ring S (with unit) such that R = J (S) (the Jacobson radical). We study the commutative subdirectly irreducible radical rings and show that such a ring is noetherian if and only if is finite. We present a reflection of the commutative radical rings into the category of the commutative rings and derive a lot of examples of the subdirectly irreducible radical rin...

conclusions according to the obtained data, synthesized pyridine based chalcones (3a-3j) could be proposed as potential antioxidant lead compounds. background natural chalcones and also their synthetic derivatives have attracted increasing attention due to various pharmacological applications. development and discovery of new chalcones with antioxidant activities is one of the attracting areas ...

Introduction: The phytochemicals in medicinal plants are defined as bioactive non nutrient plant compounds in fruits, vegetables and grains that have been linked to reducing the risk of major chronic diseases. The medicinal plant are promising to have such have effective medicinal property due to presence of phytochemical compounds like alkaloids, tannins, flavonoids and phenolic compounds. The...