Jelan Mofeed

Suez University · aqatic biology

CYANOBACTERIA represent a promising but not totally explored source of a wide array of secondary metabolites. They also represent a source for the discovery of compounds and drugs. In the present study, three cyanobacterial species, namely, Arthrospira platensis MH285264, Leptolyngbya boryana MH155317, and Leptolyngbya sp. MH285263 were tested for...

Microbial infections cause complicated health influences along with bad economic impacts. In the present investigation, three dominant seaweeds namely, Amphiroa anceps, Corallina officinalis and Sargassum filipendula were collected from different Egyptian sites at the Red Sea and Mediterranean Sea during autumn 2019. Organic extracts of the three a...

The removal of heavy metals from industrial waste has become crucial in order to maintain water quality levels that are suitable for environmental and species reproductive health. The biosorption of Zn+2 and Fe+3 ions from aqueous solution was investigated using Ulva lactuca green algal biomass and Corallina officinalis red algal biomass, as well a...

Ulva fasciata , U. lactuca , Amphiroa anceps , Corallina mediterranea , and Sargassum filipendula extract were screened for their in vitro anticancer activity against human breast adenocarcinoma cell line (MCF-7) and colorectal carcinoma cell line (HCT-116). Algal extracts exhibited significantly dose-dependent anticancer activity without significa...

Aquatic ecosystms may receive hazardous heavy metals resulting from the overconsumption of petrochemical products. Chemical and physical analysis of wastewater of certain petrochemical plant was studied; and pointed for the existence of Cd, Pb, Zn, Ni, Cu, Co, Fe and Mn. The objective of this work is to study the effectiveness of immobilized Scened...

The growing passion for new industrial technology, using innovative materials such as nanoparticles (NPs) which reached water bodies as wastewater, heavily influenced aquatic organisms and consequently the human life. Physiological characteristics of the micro-green alga Scenedesmus obliquus can be used as biomarker to evaluate the effects of the n...

Bardawil Lagoon is a source of wildlife and high-quality fish, so, it is imperative that it should be subject to continuous monitoring of both water quality and the phytoplankton composition. Samples were collected from ten sites representing different habitats of the lagoon, from summer 2017 to spring 2018. The water properties were determined; no...

Coxsackievirus B3 (CVB3) and rotavirus (RV) are pathogens of some chronic human diseases. The aim of this study was to determine in vitro antiviral activity of some cyanobacteria against RV and CVB3 infections. Five cyanobacteria were collected from Egypt, identified, and analyzed biochemically. Then, the inhibition of the cytopathic effect of RV a...

Seaweeds represent one of the most important reservoirs of new therapeutic compounds with valuable biological activities. In this study, the extracts of two Ulva species (Ulva lactuca and Ulva fasciata) were investigated to compare between their biochemical and antiviral activities against Coxsackie virus B3 (CVB3) and Rotavirus (RV), beside its bi...

Spirogyra species are one of the most common freshwater filamentous green algae reported to have antimicrobial activities. However, their chemical constituents have not been entirely detected. In this work, the chemical constituents of Spirogyra longata, successively extracted with petroleum ether, methylene chloride, chloroform, acetone and methan...

Suez Canal is a vital navigational passageway linking between east and west. The present study monitored both water quality and macroalgal groups, in five sites (Port Said, Qantara, Ismailia, Fayed and Suez) along Suez Canal, throughout one year. Physico-chemical properties of water exhibited local variations, giving noticeable maximum concentratio...

The concentrations of PCDDs, PCDFs, and DL-PCBs were determined in samples of eight commonly used medicinal plants, namely "caraway, cumin, anise, sage, rosemary, black tea, ginger and cinnamon" collected randomly from the Jeddah central market between the periods of July and August 2013. Fortunately the result revealed that, the collected samples...

The aim of the present study was to monitor the residues of 42 pesticides in different vegetable samples (tomato, squash, cucumber, egg-plant, green pepper, and potato) collected from 5 major supermarkets located in Jeddah, Saudi Arabia. A multi residue method was carried out by gas chromatography with mass spectrometry (GCMS). Residues of some org...

Laboratory studies were conducted to determine the effects of different concentrations of pyrimethinal on protein contents, and some oxidative stress in Tubifex tubifex after an exposure of 2, 4, and 7 days. Residues of the fungicide were followed in water and in the worms. In water, pyrimethinal concentration decreased slowly (maximum -6.4 % ± 0.8...

Laboratory studies were conducted to determine the effects of different concentrations of fenhexamid and atrazine (25, 50 and 100µgL(-1)) on growth and oxidative stress on Scenedesmus obliquus (microalgae) after exposure for 24, 48, and 96h. In addition, residues of fenhexamid and atrazine were determined in the culture medium after 96h; 52%, 44% a...