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Showing 1 to 20 of 22 for “"Trichloroacetic Acid"”.
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Mechanisms of trichloroacetic acid carcinogenesis
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Source identification of trichloroacetic acid with preparative capillary gas chromatography and accelerator mass spectrometry
… chemicals present in soil at ppb levels using trichloroacetic acid (TCA) as an exemplary compound was developed in the present thesis. A powerful approach to differentiate between biogenic and anthropogenic sources of environmental chemicals is to determine the radiocarbon content: an organic …
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The design, construction, and operation of a pilot plant for the production of trichloroacetic acid from acetic acid and chlorine
… of sodium trichloroacetate from acetic acid and chlorine, and further, to study the compounding of chloral hydrate and sodium chlorate to give desirable grass killer formulation.
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Studio di componenti del lattice di Euphorbia characias
… and a new procedure involving the use of the trichloroacetic acid. The results of this research indicate that E. characias latex exhibits antioxidant activities, is rich in total polyphenolic and flavonoids content and exhibited substantial inhibition of acetylcholinesterase activity. A …
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Effect of Coagulants and Calcium Reduction on Mozzarella Cheese Functionality
… cheese. Mozzarella cheeses were made by direct acidification using glucono - δ- lactone or using starter culture. Milk was preacidified using citric acid and acetic acid to a pH of 5.9 to lower the level of calcium. Reduced calcium cheeses made with this preacidified milk were compared with …
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Effects of copper and selenium on antibody response, weight gains and blood parameters in beef calves grazing high or low endophyte (Acremonium coenophialum) tall fescue (Festuca arundinaceae, Schrep)
… blood Se concentration, serum Cu concentration, trichloroacetic acid-precipitated serum Cu concentration (TCA-Cu), serum clinical chemistries, hematological evaluations, and serum antibody response (IgG and IgM) to a synthetic antigen, TGAL, as measured by ELISA.
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Prizidilol : analytical methods and in vitro metabolism by hepatic enzymes
… since it is known that precipitation with trichloroacetic acid of the protein leads to losses by binding at different rates of prizidilol and of the internal standard. The SK & F assay might therefore be less sensitive and precise than necessary. Secondly, use of the complexing reagent, …
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Development and characterization of cell-free amino acid incorporation systems from <u>Cellvibrio gilvus</u>
… gilus</u> which is active with respect to amino acid incorporation into hot trichloroacetic acid-insoluble material. Optimal incorporation systems showed a requirement for ribosomes, pH 5 enzyme protein, ATP plus ATP-generating system, magnesium ion, ammonium ion, and GTP. ¹⁴C-phenylalanine …
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The effect of sodium chloride substitution with potassium chloride on chemical, physical and microbiological characteristics of Mediterranian cheeses
… chemical composition, texture profile, organic acids profile, and microstructure compared with control (made only with NaCl) at the same storage period. Organic acids significantly increased and hardness decreased significantly during storage time at the same salting treatment. The primary …
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The Occurrence and Control of Disinfection By-Products (DBPs) in Two Water Treatment Plants Utilizing the Same Source
… produced by chlorination were haloacetic acids (HAAs), within the HAAs, dichloroacetic acid (DCAA) and trichloroacetic acid (TCAA) were the dominant members. Concern over potential health effect led the U.S. Environmental Protection Agency (USEPA) to set a maximum contaminant level (MCL) …
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High pressure liquid chromatography of nucleotides and nucleic acid bases from fungi
… mat in high yield with 10% (weight/volume) trichloroacetic acid, and then preseparated from interfering polysaccharides, glycoproteins, etc., on a Biegel P-2 column with double distilled water elution. Resolution of some 18 nucleotides from each fungal species is accomplished on …
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Factors affecting use of sorbitol as a carbon source by exponentially growing Gluconobacter oxydans ATCC 19357
… were harvested, washed and fractioned with cold trichloroacetic acid (TCA) to separate the soluble low molecular weight metabolites (TCAs) and the insoluble polymers (TCAi). After 6 h (5 generations) of exponential growth at a rate of 0.094 mg dry cell weight (DCW)/ml/hr and an oxidation rate of …
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Biogenic Amine Analysis of Fresh and Stored Bluefish (Pomatomus Saltatrix) and Microbiological Survey of Histamine-Forming Bacte
… method. The HPLC method utilized a 5.0% (w/v) trichloroacetic acid (TCA) extraction, pre-column fluorescamine derivitization, and fluorescence detection. The derivatives were stable over 24 h. The 5% TCA extraction produced percent recoveries of 98.6%, 98.7, and 100.0% for histamine, …
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Use of cell wall-hydrolytic enzymes in studies of the reticuloendothelial-stimulatory properties of Propionibacterium acnes
… activity of formamide-extracted vaccines. Trichloroacetic acid-extracted cell wall polysaccharide (TCA-PS) was compared with PVL enzyme-released cell wall polysaccharide (ERPS). Although antigenically similar, the ERPS had a higher molecular weight than TCA-PS, indicating that the TCA-PS …
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Natürliche Bildung von halogenierten Essigsäuren und Iodalkanen
… occurrence and sinks of halogenated acetic acids (HAAs), which are phytotoxic, and probably related to forest dieback, is summarized. They are ubiquitous in precipitations and are accumulated in coniferous needles. Next to anthropogenic sources there have also been indications of a natural …
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Definition of Agrostis palustris leaf health at the time of infection and colonization by Curvularia lunata
… by reducing cuticle/wax formation with trichloroacetic acid (TCA) and stressing plants with high air temperatures. Plants were grown until the third leaf had fully expanded and the fourth leaf had not yet emerged from the whorl. Plants were then treated with TCA for 6 times on alternate …
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The stimulation or inhibition of growth and acid precipitable material production of Vibrio Fetus by Kreb's cycle intermediates, fatty acids, amines, and miscellaneous compounds
… compounds on the growth and the production of acid precipitable material by seven strains of vibrio fetus was determined. The test compounds were Krebs cycle intermediates, lactate, pyruvate, fatty acid, amines, surface active agents, aminobutyrate, hydroxybutyrate, glutathione, asparagine, …
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Bioprospecting for novel marine polysaccharides for the life sciences
… and rheological properties such as hyaluronic acid (HA), which is the primary exopolysaccharide (EPS) used within medical device formulations to conduct several ophthalmic surgeries, such as cataract removal. Despite this biocompatibility, the use of HA has considerable drawbacks including …
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Disinfection by-products and prenatal development
… outcomes. Exposure to high doses of haloacetic acids (HAAs), the second most commonly occurring group of DBPs, causes cardiovascular and orofacial malformations, such as cleft palate, in laboratory studies. Human studies have focused primarily on low-dose exposures to THMs. Most epidemiological …
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Non-lysosomal protein degrading systems in chicken skeletal muscle
… proteins (measured by the appearance of trichloroacetic acid-soluble radiolabel after incubation with 125I-lysozyme) took place in muscle extracts; the specific activities of these processes were significantly lower than those detected in rabbit reticulocytes. Conjugation of ubiquitin to …
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