May 2013
Inhibition of hepatitis C virus (HCV) genotype 2a RNA replication by extracts of medicinal herbs with anti-cholesterol effects
Hepatitis C virus (HCV) is a worldwide disease agent causing chronic hepatitis and hepatocellular carcinoma. Nevertheless, there are few HCV drugs such as interferon and ribavirin with serious side effects. The purpose of this study is to find a multi-functional herb to inhibit HCV replication among medicinal herbs. Twenty nine medicinal herb extracts were selected. The functional medicinal herbs were tested for...
May 2013
Phenolic, non-phenolic compounds and antioxidant activity of pomegranate flower, leaf and bark extracts of four Tunisian cultivars
The aim of this work was to investigate phenolic and non-phenolic content and to determine the antioxidant activity in pomegranate flowers, leaves and barks among four Tunisian cultivars. The highest amounts of poylphenol compounds were recorded in Tounsi flower and Gabsi leaf extracts (218.64 and 131.91 mg/g of dry weight (DW), respectively). However, bark extracts showed relatively low proportions of phenolics...
May 2013
Antioxidant effects of whole ginger (Zingiber officinale Roscoe) against lead acetate-induced hematotoxicity in rats
Humans are exposed to a number of toxic elements in the environment. Lead, widely used in industry, is a great environmental health problem of both humans and animals. Effects of reactive oxygen species (ROS) generation have been postulated to be major contributors to lead-exposure related disease. The aim of the study was to investigate the effect of ginger on oxidative stress in rats exposed to lead. Ginger was...
May 2013
Correlation analysis between the high-performance liquid chromatography (HPLC) fingerprint of antioxidants and flavonoids of Polygonatum odorantum
The correlation analysis between high-performance liquid chromatography (HPLC) fingerprinting of flavonoids of Polygonatum odorantum and antioxidant activity was performed to study the relationship between the HPLC fingerprint of flavonoids and their antioxidant activity, and select the species of Polygonatum with the greatest correlation. Five samples from Shandong Taiwan, Liaoning, Hunan, Shandong...
May 2013
Far infrared assisted kenaf leaf tea preparation and its effect on phenolic compounds, antioxidant and ACE inhibitory activity
The kenaf (Hibiscus cannabinus L.) leaf tea was prepared by subjecting kenaf leaf in far infrared roaster at different time and temperature. Further, the effect of far infrared (FIR) irradiation on the total polyphenol, total flavonoid, antioxidant activity and angiotensin I-converting enzyme (ACE) inhibition ability were investigated in kenaf leaf tea. The data revealed that the FIR irradiation at 60°C...
May 2013
Far infrared assisted conversion of isoflavones and its effect on total phenolics and antioxidant activity in black soybean seed
Aglycone isoflavones are more potent in their biological activities than their corresponding glycosides. The objective of this research was to explore the suitable temperature and time to obtain optimum conversion of daidzein and genistein using far infrared irradiation (FIR) as a thermal source on black soybean. The changes were monitored and quantified by high performance liquid chromatography (HPLC)....
May 2013
Far infrared assisted conversion of isoflavones and its effect on total phenolics and antioxidant activity in black soybean seed
Aglycone isoflavones are more potent in their biological activities than their corresponding glycosides. The objective of this research was to explore the suitable temperature and time to obtain optimum conversion of daidzein and genistein using far infrared irradiation (FIR) as a thermal source on black soybean. The changes were monitored and quantified by high performance liquid chromatography (HPLC)....
May 2013
In vitro effects of Allium obliquum extract on the growth and ultrastructure of Botrytis paeoniae
The allicin and alliin contents of Allium obliquum L. ethanol extract were analyzed by liquid chromatography coupled with mass spectrometry method. Additionally, the ability of A. obliquum to inhibit the growth of Botrytis paeoniae Oudem. on the nutritive medium was assessed. The in vitro fungicidal activity of A. obliquum was studied by the ultrastructural...
May 2013
Antimicrobial activity of leaves extracted samples from medicinally important Plumeria obtusa
The present research work was carried out to investigate the antimicrobial (8 bacteria and 1 fungus) activities of different solvent (petroleum ether, ethyl acetate, chloroform, iso-butanol and ethanol) extracted samples from leaves of Plumeria obtusa by disc diffusion method. The data revealed that petroleum ether, iso-butanol and ethyl acetate fractions showed inhibitory activities...
May 2013
Real time sequence characterized amplified region (RT-SCAR) marker: Development and its application for authentication and quantification of Catharanthus roseus L. Don.
The objective of the present study was to develop a Real Time-Sequence Characterized Amplified Region (RT-SCAR) of Catharanthus roseus, an effective molecular marker for authentication and quantification. Here, we made a comparative study of SCAR and RT-SCAR marker. These newer RT-SCAR methods are useful for the correct identification and quantification of C. roseus. In particular, this technique is very...
May 2013
Cellulolytic activity of fungi isolated from anise and cumin spices and potential of their oils as antifungal agents
Mycological analysis of 100 samples of anise and cumin seeds collected from four governorates (Aswan, Qena, Sohag and Assiut) in Upper Egypt revealed the isolation of seventy-one fungal species belonging to 30 genera. Anise seeds yielded a wider spectrum of fungal species (51 species) than those of cumin (41 species) using diluted seed suspension cultured on glucose- and cellulose-Czapek`s agar. The most common fungal...
May 2013
In vitro anticancer activity of some plants used in Moroccan traditional medicine
Over time, cancer remains a world public health problem. The use of traditional medicine as alternative treatments of cancer was recognized in 1950s by the US National Cancer Institute (NCI) under the leadership of the late Dr. Jonathan Hartwell. In this context, we are interested to search for bioactive natural substances for cancer therapy used in Moroccan traditional medicine. Based on ethnopharmacological study, we...
May 2013
Evaluation of the hepatoprotective, nephroprotective and anti-malarial activities of different parts of Bauhinia purpurae and Tipuana speciosa grown in Egypt
In an attempt to explore, the hepatoprotective, nephroprotective and anti-malarial effects of some plants growing in Egypt, different parts of Bauhinia purpurae and Tipuana speciosafamily Fabaceae were selected for the current study. Liver and kidney injury were induced in Wistar albino rats using paracetamol. The biochemical parameters such as aspartate aminotransferase (AST), alanine aminotransferase...
May 2013
Biological characterisation of the rhizome of Sansevieria roxburghiana Schult. & Schult. f. (Agavaceae)
Sansevieria roxburghiana Schult. & Schult. f. (Agavaceae), called Murva in Sanskrit and Hindi, Marul in Tamil, Indian bowstring hemp in English is a herbaceous perennial plant with short fleshy stem and stout rootstock, occurring in eastern coastal region of India. The stem part (rhizome) of this species is used to heal wounds in animals and also used to treat toothache. The rhizomes are mucilaginous...
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