Seaweeds are potential renewable resources in the marine environment. The antibacterial activity of Jania rubens, Corallina mediterranea and Pterocladia capillacea were analyzed against human pathogenic bacteria. present study was performed to investigate phytochemical constituents seaweeds, such as alkaloids, flavonoids, steroids, terpenoids phlobatannins. In this study, we estimated phenols, tannins, pigments mineral contents determined hydrogen peroxide scavenging activity, reducing power...

Different Bacillus species were screened for the production of 1,4-
- mannanase on solid media. amyloliquefaciens was selected as most potent in producing enzyme high activity. Utilization various agro-industrial residues evaluated. Potato peels at a concentration 14 g/l found to be effective carbon source. Maximum activity (61.5 U/mg protien) obtained with ammonium nitrate nitrogen The optimum incubation temperature and pH 35oC 7, respectively. influence inoculum size so remarkable that,...

Coral reefs are the most biodiverse and biologically productive of all marine ecosystems. Corals harbor diverse abundant prokaryotic groups. However, little is known about diversity coral-associated microorganisms. We used molecular techniques to identify compare culturable bacterial assemblages associated with soft coral Sarcophyton glaucum from Red sea. Different media were utilized for microbial isolation, phylogeny bacteria was analyzed based on 16S rDNA sequencing. The found be...

In this study we investigated the phytoconstituents Calluna vulgaris, Ferula hermonis and Tribulus terrestris, then assessed their possible biological activities by using standard methods. A preliminary phytochemical investigation of three extracts revealed presence alkaloids, flavonoids, proteins, lipids, phenolic compounds, saponins, sterols amino acids. Three showed anti-oxidant effect as they inhibited 1,1-diphenyl-2-picryl hydrazyl (DPPH) oxidation production thiobarbituric acid...

Abstract Candida albicans is the most common pathogen responsible for both spontaneous and recurrent candidiasis. The available treatment of infections has several adverse effects, development new drugs critical. current study looked at synthesis anti- metabolites by Streptomyces sp. HC14 recovered from a soft coral. Using Plackett Burman design, medium composition was formulated to maximize production. GC–MS, compounds have been identified, cheminformatics approach used identify potential...

Selected commercial and/or local vineyards and nurseries in three different governorates of Egypt (Alexandria, El-Beheira El-Menofia) were surveyed for symptoms indicative infection by grapevine viruses. Leaf samples from red-fruited white-fruited Vitis vinefera tested leafroll associated viruses (GLRaV-1, GLRaV-2, GLRaV-3), A B (GVA, GVB), rupestris stem pitting virus (GRSPaV), fanleaf (GFLV), fleck (GFKV) early April to late October 2010. Incidence these was assessed RT-PCR 60 samples....

A pseudoplastic paint manufactured by the Protal Paint Company in Alexandria, Egypt was examined for its quality to resist microbial degradation. The hydrolyzed extracellular endoglucanase of a local fungal isolate. main hydrolysed component hydroxylethyl cellulose (HEC) thickener. isolate identified as Aspergillus niger which showed DNA monomorphism 86% A. ATCC 16404 RAPD. Plackett–Burman design performed determine factors influencing activity. analysis revealed significance negative effect...

Bacterial cellulose (BC) has received attention due to its many advantages such as high mechanical strength, purity, crystallinity, liquidabsorbing capabilities, and biodegradability.The most discrepancy associated with BC production is cost which higher than the plant cellulose.So, present study was aimed improve by using reducing sugar from algae a cheaper carbon source.Replacing glucose 20 g/l of sugars extracted P. oceanic increased yield about 5.7g/l, on (3.7 g/l).The maximum obtained...

nfactorial design was applied to elucidate media compositions that significantly affect alginate lyase formation. Sixteen trials were investigated and one with positive levels of yeast extract, peptone, sodium chloride showed a 15-fold increase in specific enzyme activity. The F ratio revealed two factors, alginate, whether separately or combined are positively effective at 1% level significance.

Algae are known to produce biomass faster as compared with lignocellulosic biomass.BC was produced by using reducing sugar from algae a cheaper carbon source.The effect of immobilization on the production biocellulose(BC) Gluconacetobacter xylinus ATCC 10245 studied.The BC all entrapped cultures within different gel materials lower than that free cell but G. cells in alginate beads recorded highest productivity (12.5 g/l).The adsorption luffa pulp (LP) and ceramics particles (CP) gave (14.5...