Перегляд за Автор "Hutsalo, Inna"

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A new method of analysis of granulated hops
(2013) Litvynchuk (Vorontsova), Svitlana; Nosenko, Volodymyr; Meletyev, Anatoly; Hutsalo, Inna
The diffuse reflectance spectra of hops were investigated in order to create a rapid method of assessing the quality of granulated hops with simultaneous determination of key indicators (without the use of chemicals and prolonged dry). Researches have been conducted on the infrared analyzer "Infrapid-61" in the wavelength range 1,33-2,37 microns.
Analysis of near infrared reflectance spectrum of rape seed with different content of erucic acid
(2013) Nosenko, Tamara; Hutsalo, Inna; Nosenko, Volodymyr; Levchuk, Irina; Litvynchuk (Vorontsova), Svitlana
The objective of this study was to analyze of reflectance spectrum in near-infrared region of rapeseed with different erucic acid content and to choose the most informative wavelength for development of calibration equation. Near–infrared reflectance spectra at 1330-2370 nm were measured for rape seed with high and low erucic acid content. The fatty acid composition of seed oil were determined by gas-liquid chromatography. We have detected difference in absorbance level between low and high erucic acid seed in the range of 1700-1860 and 1930-2370 nm. The first derivative of reflectance spectra were analyzed and wavelength set are proposing for development of calibration equation of erucic acid content in rape seed. Our data could be used for determination of erucic acid content in rape seed by near–infrared reflectance spectroscopy.
Determination of Fatty Acid Profile of Sunflower Oil Samples by NMR 1H Spectroscopy
(2018) Kovaleva, Svetlana; Mazur, Larisa; Miroshnikov, Oleg; Hutsalo, Inna
Sunflower oil with a high content of oleic acid (Omega-9) and a sufficiently low content of polyunsaturated linoleic acid (Omega-6) is characterized by a lower nutritional value but greater chemical stability at high temperatures and in the presence of oxidizing agents, therefore, it has several advantages for the food and chemical industries, and also as a raw material for the production of biofuels. The determination of the TAG composition o f oil is very important, because due to selection there is a large number o f sunflower varieties. The spectra o f oil samples extracted from seeds o f various sunflower varieties were investigated by NMR 1H spectroscopy to determine fatty acids composition. This method based on estimation and comparison the proton integral intensities of allylic and bis-allylic CH2 groups with intensity o f glycerol protons that allows to determine the amounts o f these unsaturated fatty acids. Each oil sample obtained has its individual TAG profile determining its physicochemical properties and nutritional value. Method 1H-NMR spectroscopy is rapid and non-destructive, so it is perspective for determination o f oil fatty acid composition.
Determination of fatty acids profile of sunflower oil samples by NMR 1H spectroscopy
(2018) Kovaleva, Svetlana; Mazur, Larisa; Hutsalo, Inna
Determination of moisture content in sunflower meal by reflection NIR spectroscopy
(2016) Hutsalo, Inna; Litvynchuk (Vorontsova), Svitlana; Nosenko, Tamara; Nosenko, Volodymyr
Thus, it is possible to determine moisture content of sunflower meal using obtained calibration equations and wavelengths mentioned above. The study of reflectance spectra peculiarities makes it possible to more widely use NIR spectroscopy method for rapid determination of fat, protein, moisture and other substances content in oilseeds, in their byproducts and meals (whether it be storage or processing stages).
Determination of oleic acid in the samples of sunflower seeds by method of NIR spectroscopy
(2017) Hutsalo, Inna; Mank, Valeriy; Kovaleva, Svetlana
Seed samples of various sunflower varieties with a known content of oleic acid and the same samples additionally enriched with oleic acid were investigated by NIR diffusion reflectance spectroscopy. This non-destructive NIRS method could simplify the analysis of qualitative components, because of the low level of light absorption in this spectral region. The express method of diffuse reflectance NIR spectroscopy can be considered as an alternative method for determining the quality of fat-containing materials in the processes o f their storage, sorting or processing.
Determination of presence of the water-retainer sodium triphosphate in minced meat with method of near-IR spectroscopy
(2017) Melnichenko, Georgii; Hutsalo, Inna; Kovaleva, Svetlana
Addition of sodium triphosphate (E451) to meat semi-finished products improves the moisture-absorbing properties of muscle tissue, but worsens the absorption of calcium by human body. Therefore, content of sodium triphosphate must be controled. This express method of non-destructive IR spectroscopy, provided that the spectrograph has been pre-calibrated, allows to detect objectively the presence o f sodium triphosphate (E451) in minced meat.
The Study of the Fatty Acids Composition of Domestic Brands of Sunflower Oil by NMR 1H Spectroscopy
(2017) Kovaleva, Svetlana; Hutsalo, Inna
Use of reflection spectra in the near infrared region for oil and fat analysis of products
(2015) Hutsalo, Inna; Litvynchuk (Vorontsova), Svitlana; Okopna, Yana
Schroth indispensable as high protein additives in the production of fodder for large cattle, pigs, birds, because it contains natural proteins, fiber, vitamins E and C, potassium, phosphorus and other minerals. NIR analyzer makes it possible to automatically calculate the first and second derivative reflectance spectra. Comparison charts showed that more extremes there is depending on the graph of the second derivative of reflection coefficient, that is, through this analysis can be experimentally determine the effect of vibration spectra of other chemical bonds to the formation of the main analytical strips for further quantitative spectral analysis.
Using of infrared reflectance spectra of sunflower meal for determination its moisture content
(2013) Litvynchuk (Vorontsova), Svitlana; Hutsalo, Inna; Nosenko, Tamara; Nosenko, Volodymyr
In this work we have studied the near-infrared reflectance spectra of sunflower meal to develop of calibration equation for moisture content determination. Sunflower meal samples with different humidity that varied from 5 to 19 % were investigated. Investigations were carried out on the spectrometer „Infrapid -61” in the range of wavelength 1330-2370 nm through 10 nm. It was detected that 1460 and 1930 nm wavelengths are characteristic for moisture content determination of sunflower meal using reflectance coefficient. Analysis of first and second derivatives from the optical density spectra gave possibility to detect their characteristic wavelengths, which were moved to low wavelengths region and were located at 1400 and 1890 nm for the first derivative of the optical density spectra and at 1370 and 1860 nm – for the second derivative of the optical density spectra. Calibration equations are developed and value of probable approximation are obtained. It is possible to determine moisture content of sunflower meal using wavelength mentioned above.