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22 articles for “EDTA”
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Research ArticleOpen accessIn the abstractTHE GROUP COMPOSITION OF METAL COMPOUNDS IN SOIL AS AN INDEX OF SOIL ECOLOGICAL STATESaglara Sergeevna Mandzhieva, Tatiana Mikhailovna Minkina, Svetlana Nikolaevna Sushkova et al.A system of indices for assessing the soil ecological state as based upon the group composition of heavy metal compounds in soils is proposed. The group composition of heavy metal were determined using combined fractionation including sequential and parallel extractions (1 N NH4Ac, pH 8; 1% EDTA in NH4Ac and 1 N HCl). It was shown that strongly bound compounds … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 1 · 7 Dec 2013 · 7,593 accessesView PDFCite
Research ArticleOpen accessIn the abstractAbolishing Toxicity of Copper by Some Environmental Factors Using Green Alga Chlorella vulgarisAdel A. Fathi, Mohamed M. Azooz, Mohamed A. Al-FredanA variety of environmental factors are known to modify the toxicity of heavy metals on algae. This study was undertaken to examine the impact of some inorganic and organic complexes on the toxicity of copper using the isolated algal species (Chlorella vulgaris). The data illustrate that the amount of available forms of copper (copper free ions) gradually decreased with increasing … …American Journal of Environmental Sciences, Vol. 8, Issue 6 · 2 Jan 2013 · 6,757 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntioxidant Activity of Brown Algae Sargassum species Extract from the Coastline of Java IslandSiti A. Budhiyanti, Sri Raharjo, Djagal W. Marseno, Iwan Y.B. LelanaThe coastlines with rocky shores at Java Island Indonesia, Gunung Kidul (Yogyakarta) and Jepara (Central Java), have abundant resources of brown algae Sargassum sp. Little effort, however, has been made to explore the antioxidant potential of the algae harvested from these area. Tropical brown algae have proven to produce a very effective antioxidant defence system due to the strong UV … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 3 · 30 Aug 2012 · 9,901 accessesView PDFCite
Research ArticleOpen accessIn the abstractBiochemical Studies of Lipase from Germinating Oil Seeds (Glycine max)P. P. Gadge, S. D. Madhikar, J. N. Yewle et al.Problem statement: Lipase is one of the important enzymes in food, pharmaceutical, detergent and biofuels industries. Search for the lipase with distinct features, possibly from germinating seeds, is of interest for industrial applications. Approach: The lipase produced by soybean oil seeds was partially purified and characterized in terms of the optimal pH and temperature for activity as well as substrate … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 3 · 19 Jan 2012 · 9,703 accessesView PDFCite
Research ArticleOpen accessIn the abstractFish Spoilage Mechanisms and Preservation Techniques: ReviewA. E. Ghaly, D. Dave, S. Budge, M. S. BrooksProblem statement: Spoilage of food products is due to chemical, enzymatic or microbial activities One-fourth of the world’s food supply and 30% of landed fish are lost through microbial activity alone. With the ever growing world population and the need to store and transport the food from one place to another where it is needed, food preservation becomes necessary in … …American Journal of Applied Sciences, Vol. 7, Issue 7 · 31 Jul 2010 · 59,795 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Relationship between Serum Cotinine Levels and Periodontal StatusFouad Hussain AL-Bayaty, Noor Adinar Baharuddin, Mahmood Ameen AbdullaProblem statement: Smoking plays a significant role in the development of periodontal disease. Quantitative relation between smoking and increased severity of periodontal disease, by means of biochemical marker has not been described in Malaysian population. The present study was designed to apply serum cotinine measurement as a quantitative method to evaluate smoking levels in Malaysian patients and to correlate these … …OnLine Journal of Biological Sciences, Vol. 10, Issue 2 · 24 Mar 2010 · 8,002 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacteristics of a Novel Highly Thermostable and Extremely Thermophilic Alkalitolerant Amylase from Hyperthermophilic Bacillus Strain HUTBS71Farouk Al-Quadan, Hazem Akel, Rasha NatshiProblem statement: This study reported the purification and characterization of a novel highly thermostable alkaline amylase from a newly isolated Bacillus strain HUTBS71. Approach: The enzyme was purified using ammonium sulfate precipitation, ion exchange and gel filtration chromatography. Results: Maximum amylase activity (72 U mL-1) was obtained at 100°C after 10 min of incubation. The enzyme was purified 24 fold … …OnLine Journal of Biological Sciences, Vol. 9, Issue 3 · 30 Sep 2009 · 7,400 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy on Salivary Glands α-amylase In Wheat Bug Eurygaster maura (Hemiptera: Scutelleridae)Mohammad Mehrabadi, Ali R. Bandaniα-amylase activity in the salivary glands of Eurygaster maura was determined by biochemical experiments. Some of adult insect was collected and their salivary glands isolated and characterized. Enzyme samples from salivary glands of adults were prepared by the method of Cohen with slight modifications. α-Amylase activity was assayed based on Bernfeld method by the dinitrosalicylic acid (DNS) procedure. The activity … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,643 accessesView PDFCite
Research ArticleOpen accessIn the abstractUptake and Recovery of Lead by Agarose Gel PolymersAnurag Pandey, Anupam Shukla, Lalitagauri RayProblem statement: The uptake and recovery of lead ions were investigated by using agarose gel polymers. Approach: The experimental results showed that the agarose gel were effective in removing Pb (II) from solution. Biosorption equilibrium was approached within 4 h. Pseudo second-order was applicable to all the sorption data over the entire time range. Results: The sorption data conformed well … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 1 · 31 Mar 2009 · 7,629 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessing of α-Amylase Activity of Midgut in Wheat Bug Eurygaster mauraMohammad Mehrabadi, Ali R. BandaniTo determine of α-amylase activity in the midgut of Eurygaster maura, some of adult insect was collected and their gut isolated and characterized. Enzyme samples from midguts of adults were prepared by the method of Cohen with slight modifications. α-Amylase activity was assayed based on Bernfeld method by the dinitrosalicylic acid (DNS) procedure. The activity of α-amylase in midgut was … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 7,625 accessesView PDFCite