259 results for “activity concentration”

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Research ArticleOpen accessIn the abstractAntileishmanial and Antibacterial Activity of Essential Oils of Medicinal Plant Achillea santolina L.Abdulkarim Dakah, Mohammed MaarroufAchillea santolina is medicinal plant widely used in folk medicine for gastrointestinal disorders, anti-inflammatory and anti-diuretic. The World Health Organization (WHO) reports that about 350 million people are considered to be at risk of contracting leishmaniasis especially among people living in the developing countries. This research will be the first time that evaluate antileishmanial activity of essential oils of A. … …OnLine Journal of Biological Sciences, Vol. 19, Issue 1 · 2 Mar 2019 · 9,202 accessesView PDF Cite

Short CommunicationsOpen accessIn the abstractCytotoxicity and Apoptosis-Induction Potential of Fraction F3 from Fruits of Bersama engleriana (Melanthaceae) against Human Cervical Cancer CellsMichèle Stella Majoumouo et al.Cervical cancer is one of the most life-threatening malignancies worldwide, despite intensive research for more efficacious chemotherapeutic agents. Recent efforts geared towards eradicating the scourge of cancer have embodied a major surge of interest in natural products as promising lead molecules in pharmaceutical development and therapeutic translation. Consequently, this study aimed to assess the cytotoxicity of a previously identified plant … …American Journal of Biochemistry and Biotechnology, Vol. 18, Issue 4 · 5 Dec 2022 · 5,294 accessesView PDF Cite

Research ArticleOpen accessIn the abstractBaseline Concentrations of 11 Elements as a Function of Land uses in Surface Soils of the Katangese Copperbelt Area (D.R. Congo)Martin T. Mpinda, Tresor N. Kisimba, Theodore M. Mwamba et al.The Katangese Copperbelt Area (KCA) located south-eastern of D.R. Congo presents high concentration of Metal Trace Elements (MTE) due to a rich natural geochemical background and intense mining activities. However, the lack of data on specific baseline concentrations makes it difficult to assess and monitor the environmental quality of soils in the region. In this study, 11 MTE were measured … …American Journal of Environmental Sciences, Vol. 17, Issue 6 · 3 Jan 2022 · 7,128 accessesView PDF Cite

Research ArticleOpen accessIn the abstractResponse of Root Growth and Root Border Cell Characteristics of Hemerocallis fulva to NaCl StressJinxiu He, Yongxu Qiao et al.Taking three Hemerocallis cultivars ('Jingzhouhua', 'Qingchong', 'Changzuizihua') with different salt tolerance as materials, the effects of 0-200 mmol/L NaCl on root morphology and Root Border Cell (RBC) characteristics were investigated using hydroponic and root suspension culture methods and one-way analysis of variance (ANOVA). The results showed that the root morphology indicators and activity of the high-salt-tolerant 'Jingzhouhua' decreased less than … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 3 · 27 Oct 2026 · 80 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEnhancing Corn Yield and Soil Fertility in Light Chestnut Soils Using BioEcoGum: A Case Study from KazakhstanKuanysh Karabayev, Kanat Kulymbet, Ashirali Smanov, Gulbira AtashevaThis study evaluates the efficacy of the biological fertilizer BioEcoGum on corn yield and soil fertility under temperate climatic conditions at Karasai, Kazakhstan. The aim of this study was to assess the agronomic, soil, and economic effects of BioEcoGum application on corn (Zea mays L.) cultivated on light chestnut soils in southeastern Kazakhstan. A randomized block design was used, incorporating … …OnLine Journal of Biological Sciences, Vol. 25, Issue 4 · 9 Jan 2026 · 2,521 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPersonal Exposure to PM2.5 in the Various Microenvironments as a Traveler in the Southeast Asian CountriesSemih Ozler, Karoline K. Johnson, Michael H. Bergin, James Jay SchauerAir pollution has become a pressing issue in today’s society because of its significant effects on humans, animals, plants, air quality, climate and the wider environment. Most urban areas are associated with one or more air pollutants which are emitted from local or regional pollution sources including vehicle exhausts, fossil fuels using in energy production, emissions from industrial and mining … …American Journal of Environmental Sciences, Vol. 14, Issue 4 · 27 Oct 2018 · 9,277 accessesView PDF Cite

Research ArticleOpen accessIn the abstractBiological Activity of Lactic Acid Based Feed Additive and its Physiological Effect on the Animal OrganismNadezhda Nikolaevna Lantseva, Alexander Nikolaevich Shvydkov, Lyudmila Anatolyevna Ryabukha, Veronica Valeryevna EvsyukovaThe data obtained as a result of the study of the enzymatic activity of the lactic acid based feed additive LAFA, based on various bacteria, are consistent with the results of the research presented in the publications on the matter, concerning the fact that probiotic bacteria have enzymatic activity. The conducted studies revealed the leading enzymatic properties of bifidobacteria in … …OnLine Journal of Biological Sciences, Vol. 18, Issue 4 · 4 Oct 2018 · 7,420 accessesView PDF Cite

Research ArticleOpen accessIn the abstractLarvicidal Activity of Bruceine A against Aedes aegypti and Toxicity on Vero CellsDwi Sutiningsih, Mustofa, Tri Baskoro Tunggul Satoto, Edhi MartonoVector control is still based on the use of chemical insecticides, which can cause death of nontarget animals, pollution and the emergence of vector resistance. This study aims to assess the larvicidal activity of bruceine A against larvae of Aedes aegypti and its cytotoxic activity against Vero cells. Extraction and isolation of bruceine A from the seeds of Brucea javanica … …OnLine Journal of Biological Sciences, Vol. 18, Issue 3 · 4 Sep 2018 · 7,915 accessesView PDF Cite

Research ArticleOpen accessIn the abstractStatistical Improvement of Batch Culture with Immobilized Pichia pastoris Cells for rPOXA 1B Laccase ProductionMichelle Gouzy-Olmos, Luis M. Cháves-Tequia, María F. Rojas-Fajardo et al.Immobilized Pichia pastoris X33/pGAPZαA-LaccPost-Stop in Ca2+ alginate beads was employed for Pleurotus ostreatus rPOXA 1B laccase batch production. Sequential statistical improvement was achieved through Plackett-Burman (PBED), (PBED-T11, 29.5±0.8 UL-1), which allowed to increase activity by 2.36-fold (12.5±2.6 UL-1) obtained in a preliminary study. Following, Box-Behnken Experimental Design (BBED) was implemented and obtained enzymatic activity in PBED-T11 was further increased by … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 2 · 26 Apr 2018 · 11,780 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSupplementation of Prill Fat Derived from Palm Oil on Nutrient Digestibility and Dairy Cow PerformanceLolita Udin Riestanti, Despal, Yuli RetnaniPrill fat is a hydrogenated vegetable oil which contains more than 85% palmitic acid with a high melting point. Due to this reason, it does not melt at rumen temperature and bypass rumen degradation. This study was aimed to determine the optimum level of prill fat (86% palmitic acid) supplementation in dairy ration on fermentation characteristics, feed digestibility, milk production, … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 2 · 1 Jul 2021 · 8,756 accessesView PDF Cite