نتایج جستجو برای: flavonoid contents
تعداد نتایج: 93726 فیلتر نتایج به سال:
BACKGROUND Pycnocycla spinosa (P. spinosa) a member of the Umbelliferae family is traditionally used for treatment of different ailments. OBJECTIVES This study aimed to evaluate the total phenolic and flavonoid content of P. spinosa extracts (methanol, ethanol and aqueous) and their antioxidant and antimicrobial effects. MATERIALS AND METHODS The antimicrobial activity of different extracts...
Photosynthesis and Antioxidative Systems of Andrographis paniculata as Affected by Compost Tea Rates
Andrographis paniculata (Burm.f.) Nees is a medicinal herb in the family Acanthaceae. The leaves of the mature plant contain abundant diterpinoids of medicinal properties.The objectives of the present study were to investigate the impacts of compost tea rates on photosynthesis parameters and antioxidant reactions of A. paniculata. The plant was propagated using seed and planting in a polybag. A...
Plants are almost reach sources of phenolic compounds such as flavonoids which are the most importantnatural antioxidants. Antioxidant compounds are essential for protecting human body against oxidativestress. However use elicitors could increase the antioxidant activity of plant. The purpose of this studywas to evaluate the effects of Chitosan on the content of phenolic and flavonoid compounds...
?-Amylase inhibitory activities of ethanol extracts from six selected Iranian Salvia species (S. hydrangea DC., S. hypoleuca Benth., S. officinalis L., S. reuterana Boiss., S. verticillata L. and S. virgata Jacq.) were examined, using in vitro model. In addition, antioxidant capacities (DPPH• radical scavenging) and total flavonoid cotents of the extracts were also determined. The results showe...
?-Amylase inhibitory activities of ethanol extracts from six selected Iranian Salvia species (S. hydrangea DC., S. hypoleuca Benth., S. officinalis L., S. reuterana Boiss., S. verticillata L. and S. virgata Jacq.) were examined, using in vitro model. In addition, antioxidant capacities (DPPH• radical scavenging) and total flavonoid cotents of the extracts were also determined. The results showe...
objective: achillea is a traditional medicinal herb which contains different phenol and flavonoid compounds that are responsible for achillea pharmacological effects. we aimed to determine phenol and flavonoid contents, besides antioxidant activities of different extracts from achillea eriophoraa (a. eriophora) dc. and achillea biebersteinii (a. biebersteinii) afan. (endemic species in iran) an...
Background and purpose: The genus Vicia (Papilionaceae) contains 45 species in Iran. This investigation was designed to study the impact of extraction methods on total phenolic and flavonoid contents and antioxidant activities of V. hirsuta aerial parts. Materials and methods: In this experimental study the efficiencies of three extraction methods i.e. Maceration, Soxhlet, and ultrasonically a...
Nutrients, bioactive compounds and antioxidant activities of walnut male inflorescences at four flowering stages were analyzed in this study. The results showed that the male inflorescences were rich in carbohydrate, protein and mineral contents, and had antioxidant activities due to high contents of phenolic and flavonoid compounds. The nutritional compositions were varied at four stages. In t...
UNLABELLED BACKGROUND This study aims to determine the relationship between the antioxidant and anti-inflammatory activities of the thirteen herbs and two fungi extracts, and their total phenolic and flavonoid contents. METHODS Antioxidant activities were evaluated by four assays: an antioxidant activity assay using Saccharomyces cerevisiae, a DPPH ((2, 2-diphenyl-1-picrylhydrazyl) assay t...
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