Search results for "Poppy seed"
showing 4 items of 4 documents
Diagnosis and surgical management of colovesical fistulas due to sigmoid diverticulitis.
2009
Diverticular disease of the colon is the most frequent cause of colovesical fistulas. In this study we evaluated the accuracy of different diagnostic procedures for the detection of colovesical fistula and the clinical outcome in a series of 49 patients who underwent surgery for colovesical fistula due to sigmoid diverticulitis.Between 1982 and 2007, 42 men and 7 women underwent surgery for colovesical fistula due to sigmoid diverticulitis. Preoperative diagnostic procedures included the poppy seed test, abdominopelvic computerized tomography, magnetic resonance tomography of the abdomen, cystogram, retrograde colonic enema, urethrocystoscopy and colonoscopy.All patients had urinary tract i…
Microanalytical method for studying paintings by use of fluorescence spectroscopy combined with principal component analysis
2013
Abstract The study of several different naturally aged films of organic painting materials, is described. Materials studied include drying oils (walnut, poppy seed and linseed oil) resin-based paint varnishes (the triterpenoid dammar and the diterpenoids sandarac and turpentine) and protein-based binding media (egg yolk and casein). A not expensive methodology for a rapid identification of binding media and varnishes, that applies principal component analysis (PCA) to Excitation Emission (EE) fluorescence spectra, is proposed. PCA was performed on a data matrix where the rows represent studied materials and columns the variables; the variables include the fluorescence intensities associated…
Infusion mass spectrometry as a fingerprint to characterize varnishes in oil pictorial artworks.
2007
Mass spectrometry methodology to characterize drying oil used as binding media and varnishes in pictorial artworks, prior to conservation or restoration treatment, is proposed. The analytical treatment requires prior basic hydrolysis of the samples to release the fatty acids : caprylic, pelargonic, capric, sebacic, azelaic, suberic, eicosanoic, lauric, mirystic, palmitic, linolenic, linoleic, oleic and stearic, followed by separation from the matrix by a hexane/water extraction. After removing the solvent, the remaining solid is dissolved in potassium hydroxide, propanol and methanol. The mixture is directly infused into a mass spectrometer without any previous derivatization or separation …
1H NMR-based metabolic profiling for evaluating poppy seed rancidity and brewing
2015
Poppy seeds are widely used in household and commercial confectionery. The aim of this study was to demonstrate the application of metabolic profiling for industrial monitoring of the molecular changes which occur during minced poppy seed rancidity and brewing processes performed on raw seeds. Both forms of poppy seeds were obtained from a confectionery company. Proton nuclear magnetic resonance (1H NMR) was applied as the analytical method of choice together with multivariate statistical data analysis. Metabolic fingerprinting was applied as a bioprocess control tool to monitor rancidity with the trajectory of change and brewing progressions. Low molecular weight compounds were found to be…