fungi produce a wide range of secondary metabolites such as antibiotics, toxins, alkaloids, fatty acids, ketones and alcohols during active cell growth. the present study was aimed to identify secondary metabolites from some penicillium species, using gc-ms. many important compounds such as 3-oxoquinuclidine in penicillium jenseii, formamidine in penicillium pusillum, orcinol and 1,3,8-p-mentha...

in this study, gerbera ( cv. alain ducasse ) cut flowers were treated with essences of eucalyptus and rosa damascena at a concentration of 200 mg l -1 and their effects on the vase life of flowers and some qualitative characteristics were evaluated. this research was a completely randomized design with factorial arrangement. maximum vase life was obtained for flowers treated with the eucalyptus...

background controlling parenchymal hemorrhage especially in liver parenchyma, despite the progress in surgical science, is still one of the challenges that surgeons face when trying to save patients’ lives. researchers in the field are challenging to introduce a more effective method. objectives the current study aimed to determine the haemostatic effect of alum [kal (so4)2] and compare it with...

organotin compound that have at least one sn-c bond have wide commercial applications as pvc stabilizer, antifouling agent in paint and as agrochemicals. the general formula for organotin compounds is r4snx4 - n where r is normally alkyl or aryl groups and x=cl-, oh-, ch3coo- . if n=3, the compound has the highest toxicity, for example et3snoac has ld 50 4mg/kg ( rats ) and this is the most tox...

A strained aza-dibenzocyclooctyne was prepared via a high-yielding synthetic route. Copper-free, strain-promoted click reaction with azides showed excellent kinetics, and a functionalised aza-cyclooctyne was applied in fast and efficient PEGylation of enzymes.