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Comparison of methods for the identification and sub-typing of O157 and non-O157 Escherichia coli serotypes and their integration into a polyphasic taxonomy approach

bacteria to utilise 95 various carbon sources and assigns unknown strains to a species by mathematically comparing their utilisation pattern (metabolic fingerprint) with the Biolog database ( Odumeru et al ., 1999 ; Kootallur et al ., 2011 ). Fourier transform-infrared (FT-IR) spectroscopy is considered a chemotaxonomic method that is able to provide a great amount of taxonomic data. Spectra obtained from cellular biomass are very characteristic and can be considered as ‘fingerprints’ or molecular patterns distinctive of a particular bacterial strain ( Naumann, 2000

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Dietary Fiber Extraction from Defatted Corn Hull by Hot-Compressed Water

Abstract

Corn hulls were abundant and inexpensive byproducts of the corn dry or wet milling processes, but most of them were discarded as agro-wastes. The aim of this study was to extract the dietary fiber by hot-compressed water (HCW) from defatted corn hull and to determine the chemical properties. Results showed that temperature and time played critical roles in extraction efficiency; the maximal yield of dietary fiber A (DFA) extracted by HCW reached 33.0% at 150°C for 60 min. The yield of dietary fiber B (DFB) increased from 2.0% to 56.9% as the temperature increased from 110 to 180°C, while the yield of solid residue (SR) decreased from 88.7% to 27.7%. Fourier transform infrared spectroscopy (FT-IR) results demonstrated that C-H, O-H, C=O, COO- occurred in the DFA, SR and DFB. The dietary fiber polysaccharides consisted of arabinose, galactose, glucose, xylose and uronic acid.

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Milk acetone determination by the photometrical method after microdiffusion and via FT infra-red spectroscopy

, Ficnar J, Jílek M, Ticháček A, Jedelská R, Dolínková A (1999): A notes to interpretation procedures of results ketone and acetone contents evaluation (Ketotest) in individual cow's milk samples (in Czech). Cattle Research 61: 17-34. Hanuš O, Genčurová V, Kopecký J, Jedelská R, Motyčka Z, Černocký M (2008a): The interpretation of experimental calibration results of routine IR instruments for determination of free fatty acid contents of milk fat (in Czech). Cattle Research 50: 55-62. Hanuš O, Hering P, Frelich J, Jílek

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Photodegradation of Timber of Three Hardwood Species Caused by Different Light Sources

References HORN, B.A. - QIU, J. - OWE, N.L. - FEIST, W.C. (1994): FT-IR Studies of weathering effects in western redcedar and southern pine. Appl. Spectrosc. 48: 662-668 KAWAMURA, F. - OHASHI, H. - KAWAI, S. - TERATANI, F. - KAI, Y. (1996): Photodiscoloration of Western Hemlock ( Tsuga hterophilla ) Sapwood I. Actual conditions upon photodiscoloration of wood parts. Mokuzai Gakkaishi 42 (3): 293-300 KOSIKOVA, B. - TOLVAJ, L. (1998): Structural changes of lignin- polysaccharide complex during

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Notes On Alien Plant Species Amorpha Fruticosa New To Lithuania

REFERENCES A plinkos ministerija , 2015: Dėl Lietuvos Respublikos aplinkos ministro 2004 m. rugpjūčio 16 d. įsakymo Nr. D1-433 „Dėl Invazinių Lietuvoje organizmų rūšių sąrašo patvirtinimo ir dėl kai kurių aplinkos ministro įsakymų pripažinimo netekusiais galios“ pakeitimo. – Teisės aktų registras, 2015-07-20, Nr. 11487. B otta -D ukat Z., 2008: Invasion of alien species to Hungarian (semi-)natural habitats. – Acta Botanica Hungarica, 50: 219–227. D e H aan L.R., E hlke N.J., S heaffer C.C., W yse D.L., D e H aan R.L., 2006: Evaluation of

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Testing the Photostability of Acetylated and Boiled Linseed Oil-coated Common Hornbeam (Carpinus betulus L.) Wood

analysis of photodegraded lime wood by means of FT-IR and 2D IR correlation spectroscopy. International journal of biological macromolecules 48 (4): 667–75. R owell , R.M. (2005): Handbook of Wood Chemistry and Wood Composites. Taylor and Francis. Boca Raton. R owell , R.M. (2006): Acetylation of wood – Journey from analytical technique to commercial reality. Forest Products Journal 56 (9): 4–12. R owell , R.M. (2013): Chemical modification of wood. In: Rowell, R. M. (szerk.) Handbook of wood chemistry and wood composites. CRC Press, Taylor & Francis

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Influence of Soil Traits on Polyphenols Level in Moltkia petraea (Tratt.) Griseb. (Boraginaceae)

. H., 2007: An alternative method to measure carbonate in soils by FT-IR spectroscopy. Environmental Chemistry Letters 5, 9–12. Tavarini, S., Sgherri, C., Ranieri, A. M., Angelini, L. G., 2015: Effect of nitrogen fertilization and harvest time on steviol glycosides, flavonoid composition and antioxidant properties in Stevia rebaudiana Bertoni. Journal of Agriculture and Food Chem istry 63, 7041–7050. Young, J. E., Zhao, X., Carey, E. E., Welti, R., Yang, S. S., Wang, W., 2005: Phytochemical phenolic in organically grown vegetables. Molecular Nutrition

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A methodological framework to determine optimum durations for the construction of soil water characteristic curves using centrifugation

, Ostrode, Germany), with an 11150 model four-bucket rotor and bespoke adaptors designed to ft within the centrifuge buckets. The bespoke adaptors ( Figure 1 ) were designed to facilitate the use of 5 × 5 cm ( Peerlkamp and Boekel, 1960 ; Reatto et al ., 2008 ; Moncada et al ., 2015 ) ρ b rings commonly used in the field ( Creamer, 2015 ). An Acculab Atilon ATL2202 balance (Sartorius, Goettingen, Germany), with a precision of 0.01 g was used to weigh the soil cores at specified intervals. During the structured experiment, the following pressure steps were applied

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Analysis of European Honeybee (Apis Mellifera) Wings Using ATR-FTIR and Raman Spectroscopy: A Pilot Study

, 32, 1577-1583. Iconomidou JA, Chryssikos GD, Gionis V, Willis JH, Hamodrakas SJ (2001): ‘Soft’-cuticle protein secondary structure as revealed by FT-Raman, ATR FT-IR and CD spectroscopy. Insect Biochemistry and Molecular Biology, 31, 877-885. Kaya M, Mujtaba M, Bulut E, Akyuz B, Zelencova L, Sofi K (2015): Fluctuation in physicochemical properties of chitins extracted from different body parts of honeybee. Carbohydrate Polymers, 132, 9-16. Kong J, Yu S (2007): Fourier transform infrared spectroscopic

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Comparison of Chemical Structure of Alginite Humic Acids Isolated with Two Different Procedures with Soil Humic Acids

Science Publishers, Inc., pp. 123. ISBN 978-1-61668-965-0. MALCOLM, M.L. 1990. The uniqueness of humic substances in each of soil stream and marine environments. In Analytica Chimica Acta , vol. 232 , pp.19‒30. MAO, J. ‒ OLK, D.C. ‒ FANG, X. ‒ HE, Z. ‒ SCHMIDT-ROHR, K. 2008. Influence of animal manure applicatioín on the chemical structures of soil organic mater as investigated by advanced solid-state NMR and Ft-IR spectroscopy. In Geoderma , vol. 146 , no. 1‒2, pp. 353‒362. http://dx.doi.org/10.1016/j.geoderma.2008.06.003 ONO, K. ‒ HIRAI, K

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