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257 results for “activity concentration”
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Research ArticleOpen accessIn the abstractModeling of Activated Sludge Floc CharacteristicsIbrahim H. Mustafa, G. Ibrahim, Ali Elkamel, A. H. ElahwanyProblem Statement: The activated sludge system needs to improve the operational performance and to achieve more effective control. To realize this, a better quantitative understanding of the biofloc characteristics is required. The objectives of this study were to: (i) Study the biofloc characteristics from kinetics-mass transfer interaction point of view by quantification of the weight of the aerobic portion of … …American Journal of Environmental Sciences, Vol. 5, Issue 1 · 28 Feb 2009 · 7,422 accessesView PDFCite
Research ArticleOpen accessIn the abstractSerotonergic Properties of the Roots of Clerodendron capitatumSiddig Ibrahim Abdel Wahab, Abdel Wahab Hassan Mohamed, Osama Yousif Mohamed et al.The aim of this study is to investigate the pharmacological effects of the methanolic extract of Clerodendron capitatum, CC, (family verbenaceae). These investigations were carried out on isolated frog rectus abdominus muscle and rabbit aortic strips and jejunum and non-pregnant rat uterus pretreated with oestradiol. Results showed that CC did not demonstrate any contracting, relaxant or blocking effects on frog … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 4 · 31 Dec 2008 · 7,847 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeat Balance Analysis During the Production of Jadomycin CT. J. Burdock, A. H. Giffin, M.S. Brooks, A.E. GhalyJadomycins are novel antibiotics that exhibit biological activity against bacteria and yeast and also demonstrate cytotoxicity against cancer cells. Jadomycin C was successfully produced from 10 L of fermentation media in a 19 L bioreactor using Streptomyces venezuelae ISP5230 which was shocked with ethanol. The bioreactor temperature and pH were successfully maintained at 30°C and 7, respectively. The heat of … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 1 · 31 Mar 2008 · 7,710 accessesView PDFCite
Research ArticleOpen accessIn the abstractProduction of Cellulase from Oil Palm Biomass as Substrate by Solid State BioconversionMd. Z. Alam, Nurdina Muhammad, Mohd E. MahmatSolid state bioconversion (SSB) of lignocellulosic material oil palm biomass (OPB) generated from palm oil industries as waste was conducted by evaluating the enzyme production through filamentous fungus in lab-scale experiment. OPB in the form of empty fruit bunches (EFB) was used as the solid substrate and treated with the fungus Trichoderma harzianum to produce cellulase. The results presented in … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 7,440 accessesView PDFCite
Research ArticleOpen accessIn the abstractStage Specificity of Eurycomanone Isolated from Eurycoma longifolia on Plasmodium falciparum CyclesEti Nurwening Sholikhah, Mahardika Agus Wijayanti, Ratna Asmah Susidarti et al.Eurycomanone is the most active compounds in the roots of Eurycoma longifolia and shown to have in vitro antiplasmodial activity. However, the stage of Plasmodium falciparum cycles which are sensitive to eurycomanone have not been investigated. This study was conducted to investigate stage specificity of eurycomanone at various stages of P. falciparum life cycles. Stage specificity of eurycomanone at various … …American Journal of Pharmacology and Toxicology, Vol. 11, Issue 1 · 16 Jan 2016 · 7,739 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntimicrobial Activities of Unconventional Compounds against Some Bacteria Associated with Skin Infections in Humans, Sheep and GoatsIman Shabana, Amira El-AdlyBacterial skin infections are a common problem encountered in clinical practice and causing great economic losses for sheep and goats producers. Increasing multidrug resistance of pathogens paves the way for reconsidering alternative medicine. The present study was carried out to explore the antibacterial activities of different volumes; 5, 25, 50 and 100 µL of gold nanoparticles (NPS) and the aqueous … …American Journal of Applied Sciences, Vol. 13, Issue 1 · 11 Jan 2016 · 8,021 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact Assessment of Soil Contamination with Antibiotics (for Example, an Ordinary Chernozem)Yuliya Viktorovna Akimenko, Kamil Shagidullovich Kazeev, Sergey Ilyich KolesnikovThe environmental behavior of antibiotics is not well known and the precise environmental risk assessment is not practical. We studied the impact antibiotics (benzylpenicillin, pharmasin and nystatin) at different concentrations (100 and 600 mg kg-1) on population densities of microorganisms and enzymatic activity of ordinary chernozems in model experiments. The applied doses of antibiotics had definite suppressing effects on population … …American Journal of Applied Sciences, Vol. 12, Issue 2 · 29 Apr 2015 · 7,852 accessesView PDFCite
Research ArticleOpen accessIn the abstractTESTING CARBOXYMETHYL CELLULASE ACTIVITY SECRETED BY TRICHOPHYTON TERRESTRE IN CARBOXYMETHYL CELLULOSE SOLUTIONMansoor Ahmad Lone, Sanjay Sahay, Ravinder, DeepakThe techniques employed for bioconversion of cellulosic biomass to simple sugars by cellulases have a great industrial brunt. Cold-adapted microorganisms are potential resource of cold-active carboxymethyl cellulases secluded from the cold regions. In this study, Trichophyton terrestre-a rare fungal species in Indian soils, isolated from the rhizosphere of Juglans regia L. during winter season was subjugated for the production and … …Current Research in Microbiology, Vol. 5, Issue 1 · 4 Feb 2015 · 7,677 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Role of Nf-Kappa and HDCA and Implication of Oxidative Stress in Airway Inflammation of Chronic Obstructive Pulmonary DiseaseGhada A. Abdallah, Nevine M. Abd-Elfattah, Hala M. Ghanem et al.Oxidative stress has been implicated in the pathogenesis of Chronic Obstructive Pulmonary Disease (COPD), due to its effect on proinflammatory gene transcription. Oxidants/antioxidants imbalance is responsible for disease development. The study was designed to assess oxidative stress and inflammation in COPD patients. The level of TNF-α and IL-8 in sputum and BAL were compared. NF-κB and HDAC were measured in … …American Journal of Biochemistry and Biotechnology, Vol. 10, Issue 4 · 4 Dec 2014 · 6,836 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntimicrobial Properties of the Essential Oil of Juniperus communis (L.) Growing Wild in East Part of KosovoArben Haziri, Fatmir Faiku, Arben Mehmeti et al.Antimicrobial activity and chemical composition of the essential oil of Juniperus communis (L.), originated from east part of Kosova, was investigated. The essential oil from berries of J. communis (L.), obtained by hydro-distillation was analyzed by GC and GC-MS. Antimicrobial properties of the essential oil of J. communis (L.) are investigated and results are submitted for their activities against Staphylococcus … …American Journal of Pharmacology and Toxicology, Vol. 8, Issue 3 · 23 Sep 2013 · 9,923 accessesView PDFCite