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infrared reflectance spectroscopy and multivariate data analysis. J. Near Infrared Spectrosc. , 12 , 149–157. Howard V. Prediction of moisture, fat and inorganic salts in processed

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bioprocess with FTIR spectroscopy coupled to artificial neural networks enhanced with a genetic-algorithm-based method for wavelength selection . Talanta , 68 ( 3 ) , 1005 – 1012

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microbial spoilage of meat by Fourier transform infrared spectroscopy and machine learning. Appl. environ. Microbiol. , 68 , 2822–2828. Goodacre R. Rapid and quantative detection

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Aït Kaddour, A., Mondet, M. & Cuq, B. (2008): Application of two-dimensional cross-correlation spectroscopy to analyse infrared (MIR and NIR) spectra recorded during bread dough mixing. J. Cereal

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UV-cured (ultra violet), water-based and epoxyphenolic lacquers have been characterized as coatings for possible application in vegetable canning industry. These lacquers were applied to three different types of tinplates and tin free steel (TFS). The behaviour of lacquers was monitored applying porosity, flexibility and infrared (IR) reflectance spectroscopy tests. With IR reflectance spectroscopy test, we were able to determine the composition of lacquers. Using porosity and flexibility tests, performed by electrochemical methods, it was possible to characterize the best lacquer for food canning. In this work the variables involved in lacquering, e.g. the weight of coating and the degree of polymerization of lacquers were also taken into account.

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The feasibility of NIR spectroscopy for determining chemical composition of goose fatty liver was studied. The spectra of 50 fresh, homogenized liver samples (ether extract content EE=53.2, SD=4.87%) were taken between 1100 and 2500 nm in reflectance mode, then the chemical composition and the fatty acid profile was measured (gas chromatography). Calibration equations were developed using modified partial least-squares regression. The R 2 value in estimation of DM, CP and total EE were 0.72, 0.63 and 0.81, respectively. For the major fatty acids (oleic, palmitic and stearic acid, 51.4, 25.8 and 15.5% of total) the R² values were 0.94, 0.93 and 0.16. The estimation of the total saturated fatty acid (SAT) proportion and the so-called unsaturation index (UI) value was effective (R 2 =0.81 and 0.79, respectively). The paper demonstrates the usefulness of the NIRS method as a fast and solvent free alternative of liver qualification. For practical purposes a larger number of fatty liver samples are needed.

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, Koutirev , M 1998 J Catal 174 : 231 – 241 10.1006/jcat.1998.1983 . 15. Delgass WN , Haller GL , Kellerman R , Lundsford JH (eds) ( 1979 ) Spectroscopy in

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spectroscopy. Studies on cis -[Ru(NH 3 ) 4 (H 2 O) 2 ](tfms) 3 and [Ru(NH 3 ) 5 H 2 O](tfms) 3 as probe complexes with the monomer and different organic compounds representing the organic functions in the monomer (furan, norbornene, but-2-ene-1,4-diol and

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FT-IR spectra of various pectin preparations extracted from press cakes of red and black currant, raspberry and blackberry have shown structural differences. Based on the spectra data degree of esterification (DE) of the pectins was determined and found to be in the range of 50–65.

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Abstract  

This work describes the experimental determination of sucrose hydrolysis kinetics using a heterogeneous catalyst. We used an Amberlite IR-120 strong acidic cation-exchange resin. The experiments were performed under previously determined optimal process conditions: sucrose mass concentration, γ S = 50 g L−1, catalyst mass concentration, γ C = 180 g L−1, rotational frequency of the stirrer f m = 180 min−1, and temperature ϑ = 79 °C. The parameters of the supposed kinetic model were determined using experimental data. The kinetics of sucrose hydrolysis over Amberlite IR-120 has not been reported to date. Therefore, we could not directly compare the calculated values of kinetic parameters with those from the literature. However, the calculated values are within the range of values determined by other types of catalysts. Furthermore, we investigated the influence of catalyst mass concentration γ C on the reaction rate constant k′.

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