نتایج جستجو برای: iranian propolis extracts

تعداد نتایج: 131463  

Journal: :Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2011
Leandro L Moreira Teresa Dias Luís G Dias Mónica Rogão José P Da Silva Letícia M Estevinho

Propolis is a resinous substance collected from plants by bees. Its composition depends on the vegetation, the season, and the source area. It usually contains many chemical compounds such as polyphenols, steroids and amino acids. The hereditary spherocytosis (HS) is a type of anaemia characterized by microcytic and hyperchromic red cells, spherical in shape and without central pallor. Clinical...

2011
Sandra Aparecida Lima de Moura Giuseppina Negri Antônio Salatino Luiza Dias da Cunha Lima Luana Pereira Antunes Dourado Juliana Barros Mendes Silvia Passos Andrade Mônica Alves Neves Diniz Ferreira Denise Carmona Cara

Propolis is a chemically complex resinous bee product which has gained worldwide popularity as a means to improve health condition and prevent diseases. The main constituents of an aqueous extract of a sample of green propolis from Southeast Brazil were shown by high performance liquid chromatography/mass spectroscopy/mass spectroscopy to be mono- and di-O-caffeoylquinic acids; phenylpropanoids...

Journal: :Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2008
Leandro Moreira Luís G Dias José Alberto Pereira Leticia Estevinho

Pollen analysis, total phenols content and antioxidant activity were studied for the first time in Portuguese propolis samples from Bornes and Fundão regions. Total phenols content was determined by colorimetric assay and their amount was of 329 mg/g of GAE in Bornes sample and 151 mg/g of GAE in Fundão propolis. The antioxidant capacity of propolis extracts was assessed through the scavenging ...

Journal: :Phytochemical analysis : PCA 2016
Ruwida M K Omar John Igoli Alexander I Gray Godwin Unekwuojo Ebiloma Carol Clements James Fearnley Ru Angeli Edrada Ebel Tong Zhang Harry P De Koning David G Watson

INTRODUCTION A previous study showed the unique character of Nigerian red propolis from Rivers State, Nigeria (RSN), with regards to chemical composition and activity against Trypanosoma brucei in comparison with other African propolis. OBJECTIVE To carry out fractionation and biological testing of Nigerian propolis in order to isolate compounds with anti-trypanosomal activity. To compare the...

Background: Pasteurella multocida continues to pose a danger to prone farm and wild animals all over the world. Chemotherapeutic treatments are progressively losing their effectiveness, last for long time, and cost a lot of money, as well as being toxic to human consumers. Therefore, clearing the way for immunization as a big-wheel alternative against the economic grain. Yet, the vaccines avail...

2005
Matthias F. MELZIG

and to protect the beehives against outside invaders and enemies. However, bees also take advantage of its biological action. The antibacterial and antifungal properties of propolis are responsible for the lower incidence of bacteria and moulds within the hive. Propolis is a resinous substance collected from different plant sources—the main source in Europe is popular besides birch, oak, alder,...

2017
Kusumawadee Utispan Bordin Chitkul Sittichai Koontongkaew

Background: Propolis, a resinous substance produced by the honeybee, has a wide spectrum of potent biological activities. However, anti-cancer activity of propolis obtained from Trigona sirindhornae, a new species of stingless bee, has not yet been reported. This study concerned cytotoxicity of propolis extracts from T. sirindhornae against two head and neck squamous cell carcinoma (HNSCC) cell...

2012
Andresa Aparecida Berretta Andresa Piacezzi Nascimento Paula Carolina Pires Bueno Mirela Mara de Oliveira Lima Leite Vaz Juliana Maldonado Marchetti

The aim of this study was to develop a formulation, containing the propolis standardized extract (EPP-AF(®)), which can assist in the healing of skin lesions. To achieve this objective the antimicrobial activity and chemical composition of the propolis extract was determined. The final product was subjected to in vitro and in vivo pre-clinical evaluation. The broth macrodilution method was used...

Fuat Gulhan , M, Selamoglu , ,

Three different concentrations (10, 20 and 30 ppm) of the dry propolis and pollen extracts were applied in double distilled water. Biochemical and hematological parameters in blood of rainbow trout (Oncorhynchus mykiss) treated to various propolis and pollen concentrations (10, 20 and 30 ppm) for 96 h were determined.  Fish treated to 20 and 30 ppm of propolis extract presented significant incr...

2012
Dungporn Teerasripreecha Preecha Phuwapraisirisan Songchan Puthong Kiyoshi Kimura Masayuki Okuyama Haruhide Mori Atsuo Kimura Chanpen Chanchao

BACKGROUND Propolis is a complex resinous honeybee product. It is reported to display diverse bioactivities, such as antimicrobial, anti-inflammatory and anti-tumor properties, which are mainly due to phenolic compounds, and especially flavonoids. The diversity of bioactive compounds depends on the geography and climate, since these factors affect the floral diversity. Here, Apis mellifera prop...

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