The two main species, sessile oak (Quercus petraea Liebl.) and pedunculate robur L.), predominant in French forests, are mainly used for aging wines spirits; however, the potential of wood extract as a source natural antioxidants, due to its high polyphenol content, could be more widely exploited. This study focuses on three that well-known, namely, oak, third has seldom been described valorize...

Ultraviolet-B irradiation is a common environmental stressor that has detrimental effects on human skin. Natural sunscreens are well-known for their ability to benefit inflamed sunburn and dry This study examined the effect of formulated Ipomoea carnea herbal cream UVB-induced skin damage. We screened bioactive compounds I. crude extract, showing significant antioxidant. Additionally, we evalua...

A short overview is given of new developments in the chemo-enzymatic synthesis of amino acids. Amino acid resolution procedures based on stereoselective enzymatic hydrolysis of amino acid amides have been developed. Two enzymes, an aminopeptidase from Pseudomonas putida and an amidase from Hycobacterium neoaurum have been purified to homogeneity. In addition, methods for the stereoselective syn...

background: coula edulis bail (olacaceae), is an evergreen tree growing to a height of 25-38 m. this study aimed at evaluating the antidermatophytic and toxicological properties of the stem bark of c. edulis extract as well as fractions and compounds isolated from it. methods: the plant extract was prepared by maceration in ch2cl2-meoh (1:1 v/v). the fractionation of this extract was done by si...

acetone fractionated peroxidase from crude extract of brassica oleracea leaves (cabbage) was purified in three steps on chromatographic columns, using sp-sepharose, deae-sepharose and con a-sepharose. the specific activity of purified main isoenzyme (boc-pod) is 1887 u/mg protein with rz: 3.1, which is 172 times more than the rz of crude extract with 4.3% recovery. the molecular weight of boc-p...

Thanks to their various promising properties, bioactive peptides extracted from microalgae have recently attracted great attention scientists. These compounds been mostly obtained by enzymatic hydrolysis. In the present study, proteins marine microalga Rhodomonas sp. were hydrolysated into using alcalase and pepsin. After obtaining peptides, we characterized them crude protein Fourier-transform...

This study was designed to examine the stage dependency of growth inhibition by Streptomyces sp. crude extract and to determine whether its antimalarial activity is cytostatic or cytocidal. Growth inhibition was assessed by differences in growth appearance between treated and control parasites. Using synchronized In vitro cultures of Plasmodium falciparum strain 3D7, growth inhibition was detec...