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M.A. Prieto-Calvo, M.K. Omer, O. Alvseike, M. López, A. Alvarez-Ordóñez and M. Prieto

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

Open access

A. Nawrocka and J. Cieśla

system. Mat. Sci. Eng., C 29, 524-531. Binder E.M., 2007. Managing the risk of mycotoxins in modern feed production. Animal Feed Sci. Technol., 133, 149-166. Capek P., Drabik M., and Turjan J., 2010. Characterization of starch and its mono and hybrid derivatives by thermal analysis and FT-IR spectroscopy. J. Thermal Analysis Calorimetry, 99, 667-673. Carbonaro M. and Nucara A., 2010. Secondary structure of food proteins by Fourier transform spectroscopy in the midinfrared region. Amino Acids, 38, 679

Open access

Li Wang, Hua-Min Liu, Ai-Jun Xie, Chun-Yan Zhu and Guang-Yong Qin

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.

Open access

RA Fenner, J Lyons-Hart, JO Lephardt and DM Teng

References 1. Lephardt, J. O., and R. A. Fenner: Characterization of pyrolysis and combustion of complex systems using Fourier transform infrared spectroscopy; Appl. Spectrosc. 34 (1980) 174—185. 2. Lephardt, J, O., and R. A. Fenner: Fourier transform infrared evolved gas analysis — Additional considerations and options; Appl. Spectrosc. 35 (1980) 95—101. 3. Lephardt, J. O.: Fourier transform infrared evolved gas analysis (FT-IR-EGA); Appl, Spectrosc. Rev. 18 (1982-3) 265

Open access

Oto Hanuš, Václava Genčurová, Yunhai Zhang, Pavel Hering, Jaroslav Kopecký, Radoslava Jedelská, Alena Dolínková and Zdeněk Motyčka

, 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

Open access

Inga Zinicovscaia, Alexey Safonov, Varvara Tregubova, Victor Ilin, Liliana Cepoi, Tatiana Chiriac, Ludmila Rudi and Marina V. Frontasyeva

Abstract

Spirulina platensis biomass is widely applied for different technological purposes. The process of lanthanum, chromium, uranium and vanadium accumulation and biosorption by Spirulina platensis biomass from single- and multi-component systems was studied. The influence of multi-component system on the spirulina biomass growth was less pronounced in comparison with the single-component ones. To trace the uptake of metals by spirulina biomass the neutron activation analysis was used. In the experiment on the accumulation the efficiency of studied metal uptake changes in the following order: La(V) > Cr(III) > U(VI) > V(V) (single-metal solutions) and Cr(III) > La(V) > V(V) > U(VI) (multi-metal system). The process of metals biosorption was studied during a two-hour experiment. The highest rate of metal adsorption for single-component systems was observed for lanthanum and chromium. While for the multi-component system the significant increase of vanadium and chromium content in biomass was observed. In biosorption experiments the rate of biosorption and the Kd value were calculated for each metal. Fourier transform infrared spectroscopy was used to identify functional groups responsible for metal binding. The results of the present work show that spirulina biomass can be implemented as a low-cost sorbent for metal removal from industrial wastewater.

Open access

MM Thompson and MS Ireland

Abstract

FT-IR microspectroscopy was used to investigate a common type of cigarette defect in which the filter separates from the tobacco rod. Infra-red imagings of the adhesive located at this junction on the tipping papers from both defective and acceptable cigarettes were obtained. A comparison of these data revealed that although adhesive was present in the seam area of the defective cigarettes, the amount of adhesive was significantly less and its distribution was not uniform.

Open access

László Tolvaj and Dénes Varga

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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Zigmantas Gudžinskas and Egidijus Žalneravičius

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

Open access

Fanni Fodor and Róbert Németh

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