257 results for “activity concentration”

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Research ArticleOpen accessAll words, across the recordIn Vitro Biological Profiles and Chemical Contents of Ethanolic Nest Entrance Extracts of Thai Stingless Bees Tetrigona apicalisTouchkanin Jongjitvimol, Sathirapong Kraikongjit, Pussadee Paensuwan, Jirapas JongjitwimolTetrigona apicalis is a species of stingless bees found in Lower Northern Thailand. They normally construct their nest entrances as an external structure for protecting themselves from enemies. Their biological properties have not well characterized yet. The objectives of this study were to evaluate the antibacterial, antifungal and anti-proliferative activities of their nest entrances. Samples were collected from four provinces … …OnLine Journal of Biological Sciences, Vol. 20, Issue 3 · 2 Nov 2020 · 6,781 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordEvaluation of the Activity of Plant Extracts in Boer GoatsM. Worku, R. Franco, J. H. MillerProblem statement: The effect of extracts from Neem (Azadirachta indica), Wormwood (Artemisia absinthium) and Tobacco (Nicotiana tabacum) with added copper sulfate, on female Boer goats infected with gastrointestinal parasites (GIN) was evaluated. Approach: Following initial screening for infection, animals were artificially infected with a mix containing approximately 80% Haemonchus contortus and 20% Trichostrongylus spp. After 21 days, fecal samples were … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 4 · 21 Dec 2009 · 8,471 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordAssessment of Genotoxic Activity of Para-nitrophenol in Higher Plant Using Arbitrarily Primed- polymerase Chain Reaction (AP-PCR)Mohamed R. EnanParanitrophenol is a common toxic environmental pollutant; the aim of this study was to evaluate the potential of the DNA fingerprinting by AP-PCR assay to detect the DNA damage in the common bean (Phaseolus vulgaris) exposed to different concentrations of paranitrophenol (4.0-720 nM). The changes occurring in the fingerprint patterns were likely to be the result of paranitrophenol-induced DNA damage. … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 2 · 30 Jun 2007 · 7,064 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordChemical Composition, Antibacterial and in vitro Anti-Inflammatory Potentials of Essential Oils from Different Plant Parts of Moringa oleifera LamGloria Aderonke Otunola, Anthony Jide AfolayanThe chemical constituents, antibacterial, protection against protein denaturation and membrane stabilization activities of essential oils from flowers, leaves, seeds, bark and roots of M. oleifera were investigated. Of the eight bacterial strains tested, only the growths of four strains were inhibited by the essential oils. The oils from the flowers and seeds were the most active with MIC: 1.25 mg/mL … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 3 · 1 Oct 2018 · 10,333 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordConstruction of Recombinant Bioleaching Bacteria Thiobacillus ferrooxidans with Fluoride-Resistant ActivityYun-Chang Cao, Hong-Bo Wen, Nan Hu et al.Thiobacillus ferrooxidans is an important bioleaching bacterium, widely used in leaching, recovery of low-grade metals and environmental bioremediation. In bio-metallurgy industry, fluoride existing in some hard rock uranium deposits in south China severely affects the bacteria viability and inhibit leaching reproduction. In this study, the flr-4 gene that has strong resistance to fluorine ion in Caenorhabditis elegans, was cloned into … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 2 · 23 May 2018 · 11,341 accessesView PDF Cite

InvestigationOpen accessAll words, across the recordEfficiency of the Insecticide Composition "Abifipr" at Melofagosis of SheepVladimir N. Domatsky, Andrey A. Nikonov, Nataliya I. Beletskaya, Anna N. SibenThe object of research is livestock animals, i.e., sheep (Ovis aries), agents of parasitic diseases of animals (Melophagus ovinus) and drugs used against myiasis of animals. The purpose of the work is to study the possibility of creation of an insecticide composition on the base of fipronil that will be efficient against the sheep ked and to determine its efficiency … …OnLine Journal of Biological Sciences, Vol. 18, Issue 1 · 27 Mar 2018 · 7,273 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordOxidation of Exogenous Lactate by Lactate Dehydrogenase C in the Midpiece of Rat Epididymal Sperm is Essential for Motility and Oxidative ActivityHideaki Yamashiro, Masaaki Toyomizu, Akane Kadowaki et al.Problem statement: To identify the metabolic reaction-glycolysis or oxidative phosphorylation that is mainly involved in the production of energy required for rat sperm mobilization. Approach: Epididymal sperm were collected from Wistar rats and extended in lactate-containing or lactate-free raffinose-modified Krebs-Ringer Bicarbonate solution (mKRB)-egg yolk medium supplemented with 0, 1, 2, or 3 mM 2-Deoxy-D-Glucose (2 DG) and 1, 2, or … …American Journal of Applied Sciences, Vol. 6, Issue 10 · 31 Oct 2009 · 6,901 accessesView PDF Cite