نتایج جستجو برای: abts
تعداد نتایج: 2634 فیلتر نتایج به سال:
Free radicals and reactive oxygen species (ROS) are the cause of diseases such as cancer, diabetes, cardiovascular inflammatory. The presence an increase in number free excess ROS production body can imbalance immune system. Therefore, additional antioxidants needed from outside body. During this time there several antioxidant synthesis drugs (Butyl Hydroxy Anisole) BHA Hydroxyl Toluene) BHT. B...
BACKGROUND The interest in potato juice as a therapeutic agent goes back to the 19th century but its application was not supported by any knowledge about biological activity of this raw material. Factors restricting the medical application of potato juice include its inattractive sensory and functional properties. The aim of the presented investigations was preliminary evaluation of the biologi...
the aim of the study was to evaluate the antioxidant and free radical scavenging properties and to determine the phenolic content of the ethanol extract from five mentha species [m. longifolia (l.) huds., m. piperita l., m. pulegium l., m. rotundifolia (l.) huds., and m. spicata l.]. the antioxidant activities of the extracts were investigated with two different methods, 2,2’-diphenyl-1-picrylh...
we studied the antioxidant activities of the essential oils of zataria multiflora boiss. (zeo) and bunium persicum (boiss.) b. fedtsch (beo) in mixed form on linseed oil using (dpph•), (abts•+), h2o2 scavenging, and reducing power assays. after calculation of ic50 for zeo and beo separately, interactions of the essential oils were investigated at the form of mixture and the results were given...
BACKGROUND Syndesmotic diastasis is a common injury. Syndesmotic bolt and tightrope are two of the commonly used methods for the fixation of syndesmotic diastasis. Syndesmotic bolt can be used to reduce and maintain the syndesmosis. However, it cannot permit the normal range of motion of distal tibiofibular joint, especially the rotation of the fibula. Tightrope technique can be used to provide...
Stable porphyrin based porous polymer networks, PPN-23 and PPN-24, have been synthesized through a facile one-pot approach by the aromatic substitution reactions of pyrrole and aldehydes. PPN-24(Fe) shows high catalytic efficiency as a biomimetic catalyst in the oxidation reaction of 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) in the presence of H2O2.
مقدمه: با توجه به تأثیر نامطلوب بسیاری از افزودنیهای شیمیایی در فرآوردههای غذایی، امکان جایگزینی این مواد با ترکیبات مؤثرهی گیاهان دارویی مورد توجه محققین است. هدف: ارزیابی فعالیت آنتیرادیکالی عصاره گل پنیرک با آزمونهای DPPH°، +ABTS° و بیرنگ شدن بتاکاروتن و بررسی فعالیت آنتیاکسیدانی آن در روغن سویا میباشد. روش بررسی: میزان فنول کل عصاره به روش فولین - سیوکالتو استفاده شد. فعالیت آنتی...
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