نتایج جستجو برای: total phenol content

تعداد نتایج: 1175105  

In this present study, an environmentally friendly and rapid method for the synthesis of silver nanoparticles (SNPs) has been reported using Ziziphus Vulgaris (ZV) unripe fruit extract under mild conditions. The synthesized silver nanoparticles have been characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) and ultravio...

Journal: :Molecules 2010
Ali Parsaeimehr Elmira Sargsyan Katayoun Javidnia

Investigations were carried out to determine antimicrobial and antioxidant properties and total phenol content of three wild species of Ephedra compared with their respective callus cultures. Callus induction was performed in a standard Murashige and Skoog (MS) medium with the following hormonal ranges (mg/L) for every species NAA:1.5, Kin:1 for Ephedra strobiliacea, NAA:2, Kin:1 for Ephedra pr...

Journal: :iranian journal of applied animal science 2012
k.d. adeyemi a.o. olorunsanya

seed coat crude extracts of white-coloured ita-256, white and brown-coloured tvs-716, deep brown-coloured it-90k and light brown-coloured ife brown cowpea varieties were analyzed for the presence and amount of total phenol, tannin and flavonoid content. crude extracts of the cowpea varieties were analyzed for antioxidant activity using the thiobarbituric acid (tba) assay. the seed coat extracts...

2010
R. M. Pandey Rekha Singh

Twenty six accessions of grain Amaranth (Amaranthus hypochondriacus L.) were evaluated for salient biochemical and quantitative traits particularly reference to chlorophyll a and b, total chlorophyll, phenol content, leaf moisture, leaf protein content, test weight and yield plant. Genetic divergence and association among these traits were analysed. Chlorophyll a, chlorophyll b, total chlorophy...

Journal: :Food chemistry 2012
Tena Niseteo Draženka Komes Ana Belščak-Cvitanović Dunja Horžić Maja Budeč

Coffee is one of the most popular beverages in the world, prepared and consumed in many different ways. Taste, aroma and composition of the coffee brew vary depending on the preparation method. Therefore, this study investigates the effect of different brewing methods on the polyphenol and methylxanthine composition and antioxidant capacity of thirteen different coffee brews. The content of tot...

2013
Lee Suan Chua Norul Liza A. Rahaman Nur Ardawati Adnan Ti Tjih Eddie Tan

The antioxidant activities based on the free radical scavenging, reducing power, and bleaching inhibition were investigated for the three commonly used honeys in Malaysia, namely, tualang, gelam, and acacia honey. The antioxidant capacity of the honey samples was correlated with their biochemical constituents such as total phenol, total flavonoid content, and total water-soluble vitamins (vitam...

Journal: :مهندسی بیوسیستم ایران 0
فرزاد آزادشهرکی دانشجوی دکتری علوم باغبانی گرایش فیزیولوژی و فناوری پس از برداشت دانشگاه تهران سیامک کلانتری استادیار گروه باغبانی دانشگاه تهران یونس مستوفی استاد گروه باغبانی دانشگاه تهران بهاره جمشیدی استادیار مؤسسۀ تحقیقات فنی و مهندسی کشاورزی رضا مسعودی استاد پژوهشکدۀ لیزر و پلاسمای دانشگاه شهید بهشتی تهران سمیه نجفی دانشجوی دکتری پژوهشکدۀ لیزر و پلاسمای دانشگاه شهید بهشتی تهران

various destructive and non-destructive methods are used to measure the maturity and internal quality parameters of fruits. destructive methods often consume time and are costly. in this study, the ability of near infrared spectroscopy for prediction of the quality properties such as soluble solids content, titratable acid, ph, total phenol and extract anthocyanin of 'bidaneh ghermez'...

2016
SHAZIA TABASUM SWATI KHARE KIRTI JAIN

Objective: The aim of the present work was to assess the total phenolic content (TPC), total flavonoid content (TFC), and total alkaloid content (TAC) of crude hydro-methanolic seed extract of Abrus precatorius L. which is one of the beautiful seed bearing plant belonging to family Fabaceae and used extensively in many Ayurvedic preparations with significant therapeutic significance. Methods: T...

2012
A. R. Srividya S. P. Dhanabal S. Jeevitha V. J. Vishnu Varthan R. Rajesh Kumar

Aim of this paper is to find out the relationship between antioxidant activity of Abutilon indicum Linn and their phytochemical composition especially phenols and flavonols. Successive extractions were carried out for the Abutilon indicum plant with petroleum ether, chloroform, ethyl acetate, n-butanol, ethanol and water. All these extracts were evaluated for their antioxidant activities. Their...

اسدی صنم, سمانه, زواره, محسن, سفیدکن, فاطمه, نعمت زاده, قربانعلی, پیردشتی, همت الله,

To find out the effect of planting date and planting density on antioxidant capacity, phenolic compounds, yield dry matter and characteristics of medicinal plant purple coneflower root, a randomized complete block design in split plot arrangement with three replications was conducted in Research Farm of Sari Agricultural Sciences and Natural Resources University in 2012-2013. Experimental treat...

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