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105 articles for “PPM”
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Research ArticleOpen accessIn the abstractA Toolkit Approach for Carbon Capture and Storage in Offshore Depleted Gas FieldRaj Deo Tewari, Tan Chee Phuat, Mohd Faizal SedaralitFossil fuels are considered a dependable, cost-effective, and efficient energy source and their utilization has resulted in tremendous growth for humanity. However, it has its downside also. Experts are of the view that present energy systems are unsustainable due to their detrimental impacts on the environment. Oil and gas producers are charged that their infrastructure, utilization of materials and technologies … …American Journal of Environmental Sciences, Vol. 19, Issue 1 · 17 May 2023 · 6,196 accessesView PDFCite
Research ArticleOpen accessIn the abstractModulation of Aging in Yeast Saccharomyces cerevisiae by Roselle Petal Extract (Hibiscus sabdariffa L.)Sarima, Rika Indri Astuti, Anja MeryandiniCellular aging drives diseases. Free radicals are called the main cause of cellular aging. Antioxidants can protect the body from free radical attack by reducing its negative effects. An antioxidant source can be obtained from plants, such as roselle (Hibiscus sabdariffa. L). This research was conducted to analyze the ability of roselle petals extract to increase the life span of … …American Journal of Biochemistry and Biotechnology, Vol. 15, Issue 1 · 6 Apr 2019 · 9,646 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Slum Water on Physiology of Heteropneustes fossilis Collected from Silchar, AssamRubina Roy, Bijoy Brahma, Satabdi Bhattacharjee, Soumitra NathPoverty and overpopulation are not just prevailing in big cities, but have also become a matter of concern in small towns. Safe drinking water is considered a basic human need, yet millions of people do not have access to an adequate and safe water supply. The present study is focused on the quality assessment of water bodies of slum areas … …American Journal of Animal and Veterinary Sciences, Vol. 14, Issue 1 · 11 Feb 2019 · 7,912 accessesView PDFCite
Research ArticleOpen accessIn the abstractPlant Growth Promoting Activity of Actinomycetes Isolated from Soybean RhizosphereAris Tri Wahyudi, Jepri Agung Priyanto, Resti Afrista et al.Plant Growth Promoting Rhizobacteria (PGPR) is considered as the biological agent for improving plant growth. One Group of PGPR that have an important role in growth promoting of plant is Actinomycetes. The objective of this study was to isolate and screen Actinomycetes isolated from soybean rhizosphere as growth promoter of soybean in vitro. Fifty-three Actinomycetes isolates have successfully been isolated … …OnLine Journal of Biological Sciences, Vol. 19, Issue 1 · 5 Jan 2019 · 14,604 accessesView PDFCite
Research ArticleOpen accessIn the abstractWater Quality in Small-Scale Coffee Production Units, Amazonas, PeruEli Morales Rojas, Segundo Chávez Quintana, Magali García et al.The objective of this research was to determine water quality in small-scale coffee production units in the Amazon Region, Peru. The characterization of the factors associated with coffee farmers was collected through surveys. The Standard Methods for the Examination of Water and Wastewater (APHA) method was used to determine the physicochemical and microbiological parameters of the incoming water (AE) (water … …OnLine Journal of Biological Sciences, Vol. 22, Issue 4 · 11 Oct 2022 · 6,496 accessesView PDFCite
Research ArticleOpen accessIn the abstractApoptosis in Yeast is Modulated by Clove Leaf Extract and Eugenol Potentially by Interfering Caspase YCA1Septyani Amini, Rika Indri Astuti, Irmanida BatubaraApoptosis is a process of cell death important for preventing the development of diseases such as cancer, neurodegenerative disorders, autoimmune, and cardiovascular disease. Apoptosis is reported to be potentially induced by antioxidant compounds, including phytoextract. Thus in this study, we determined the potential of apoptotic modulation in yeast cells by clove extract, which was rich in eugenol. Apoptotic in yeast … …OnLine Journal of Biological Sciences, Vol. 22, Issue 3 · 15 Sep 2022 · 5,497 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Dynamics of Chemical Properties and Soil Microbial Types at Agroforestry System in Supporting Environmental Friendly AgricultureIda Suryani, Sulfiana, Maimuna Nontji, MarlianaAgroforestry is described as the land-use system producing and conserving various agricultural, livestock, and fishery commodities combined with forestry commodities. The research aims to determine the chemical properties of the soil and types of microbial (especially the presence of soil bacterial) in the cocoa farming system. The two types of analysis were conducted: (1) Soil chemical properties included pH, C-organic, … …OnLine Journal of Biological Sciences, Vol. 22, Issue 3 · 16 Aug 2022 · 5,409 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnvironmental Pollution by Heavy Metals in the Gold Mining Region of East CameroonDallou Guy Blanchard, Ngoa Engola Louis, Abdourahimi et al.The main objective of this study is to assess the level of heavy metals pollution in soil samples collected around gold mines located in Betaré Oya (BO) and Batouri (BA) in Eastern Cameroon. Elemental analysis of soil samples was carried out using Quant´X EDXRF spectrometer. Its sensitivity and accuracy were increased by using the Fundamental Parameter approach for quantification of … …American Journal of Environmental Sciences, Vol. 14, Issue 5 · 7 Nov 2018 · 9,777 accessesView PDFCite
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 · 7,912 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnzymatic Kinetics of Fatty Acids Methyl Ester from Kapok Seed Oil (Ceiba Petandra) Using Lipozyme TL IMErin Ryantin Gunawan, Dedy Suhendra, Baiq Rizkia Miftahatul HasanahSynthesis of Fatty Acids Methyl Ester (FAME) utilizing oil extracted from kapok seeds (Ceiba petandra) and catalyzed by lipozyme TL. 1M via enzymatic kinetics transesterification was succesfully conducted A mixture of different FAME, widely known as biodiesel is one of the sources of renewable energy. A kinetic analysis was investigated to identify the reaction model and the rate equation and … …American Journal of Applied Sciences, Vol. 14, Issue 12 · 2 Jan 2018 · 9,310 accessesView PDFCite