نتایج جستجو برای: butylated hydroxyl anisole
تعداد نتایج: 26481 فیلتر نتایج به سال:
This paper dwells on the results of the experimental study of three binary mixture i.e., Para-azoxy anisole (PAA)-Benzene (C6H6), Para-azoxy anisole (PAA)-Carbon tetrachloride (CCl4), Para-azoxy anisole (PAA)-1-4 Dioxane (C4H8O2) at 303K, 303K and 304K respectively. The ultrasonic velocity (u) and density (ρ) have been measured in different mole fraction. From these values the acoustical parame...
The potential energy profiles of neutral and protonated anisole and p-fluoroanisole at different electronic states have been investigated extensively by the RI-MP2 and RI-CC2 methods. The calculations reveal that the relaxation dynamics in protonated anisole and p-fluoroanisole are essentially different from those of the neutral analogues. In neutral anisole/p-fluoroanisole, the (1)πσ* state pl...
The study was planned to assess botanic origin, antioxidant power, antimicrobial activity and physicochemical properties of four honey samples were collected in Turkey. melissopalynologic results revealed that sample 1 2 are polyfloral, others unifloral. Total content phenolic (116.47-1711.13 mg GAE/100 g) flavonoids (1.46 - 27.25 CAE/100 analysed, the activities measured by ferrous ion chelati...
The methanolic extract of the aerial part of Hedyotis corymbosa (L.) Lam. (Rubiaceae) was screened for antioxidant activity using 1,1-diphenyl-2-picryl hydroxyl (DPPH) quenching assay, 2,2'-azinobis-3-ethylbenzothiozoline-6-sulfonic acid (ABTS) cation decolorization test, ferric reducing power (FRP), scavenging capacity towards hydroxyl ion (OH*) radicals and nitric oxide (NO) radical inhibitio...
Our computational and experimental investigation of the reaction of anisole with Cl2 in nonpolar CCl4 solution challenges two fundamental tenets of the traditional SEAr (arenium ion) mechanism of aromatic electrophilic substitution. Instead of this direct substitution process, the alternative addition-elimination (AE) pathway is favored energetically. This AE mechanism rationalizes the preferre...
Introduction and Aim: Antioxidants are frequently used as active ingredients in anti-aging supplements with the intention of preserving health preventing diseases. However, recent research has concentrated on conventional therapies that have a long history successfully treating several C. papaya is good alternative exhibits significant antioxidant, diuretic, antihyperglycemic, anticancer, analg...
Phenolic compounds and their derivatives are ubiquitous constituents of numerous synthetic and natural chemicals that exist in the environment. Their toxicity is mostly attributed to their hydrophobicity and/or the formation of free radicals. In a continuation of the study of phenolic toxicity in a systematic manner, we have examined the biological responses of Saccharomyces cerevisiae to a ser...
به علت ارتباط گونه های فعال اکسیژن با پیری ، سرطان و بسیاری از بیماریهای دیگر علاقه به بررسی آنتی اکسیدانها رشد چشمگیری داشته است. با توجه به اینکه آنتی اکسیدانهای سنتتیک مانند bht(butylated hydroxy toluene) وbha(butylated hydroxy anisole)میتوانند کارسینوژن و همچنین هپاتو توکسیک باشند، وجود خاصیت آنتی اکسیدانی در موارد طبیعی مانند گیاهان از اهمیت خاصی برخوردار است.(1) chrozophora obliqua(vahl)...
Recently, copper has been shown to be capable of mediating the activation of several xenobiotics producing reactive oxygen and other radicals. Since copper exists in the nucleus and is closely associated with chromosomes and DNA bases, in this study we have investigated whether the activation of 1,4-hydroquinone (1,4-HQ) and a variety of other phenolic compounds by copper can induce strand brea...
The general method for synthesis the eta(6)-(arene)-triscarbonyl-chromium(0) complexes was modified and applied for preparation of eta(6)-(anisole)-triscarbonyl-chromium(0) and the study of its analgesic activity was undertaken. A significant analgesic activity was observed after intraperitoneal injection, in Wistar rats. Two doses (30 and 50 mg/Kg of the body weight) of eta(6)-(anisole)- trisc...
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