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171.
Jolanta Kowalska Agata Marzec Ewa Domian Sabina Galus Agnieszka Ciurzyska Andrzej Lenart Hanna Kowalska 《Molecules (Basel, Switzerland)》2020,25(23)
The visible trend in the development of the snack market focuses on the use of innovative technologies such as low-temperature or hybrid processes that allow the preservation of native ingredients of raw plant materials. In addition, the high antioxidant potential of, for example, chokeberry fruit can be used to support technological processes and create new products. The aim of the study was to evaluate the possibility of using chokeberry juice concentrate as a component of an osmotic solution to enrich apple samples with natural bio-ingredients and obtain dried apples with increased content of ingredients with antioxidant properties; pro-healthy apple chips. The research material consisted of apples that underwent osmotic dehydration in solutions of sucrose or sucrose and chokeberry juice concentrate and then were dried by the freeze-drying or the hybrid method. The freeze-drying was more beneficial for maintaining the vitamin C content, while the use of the hybrid method resulted in the preservation of more polyphenolic compounds. The sensory evaluation indicated the need to modify the composition of the osmoactive solution. Due to the use of chokeberry juice concentrate, the content of vitamin C, polyphenols, and the antioxidant activity of dried apples was increased. 相似文献
172.
Zbikowska Anna Kozlowska Mariola Poltorak Andrzej Kowalska Malgorzata Rutkowska Jaroslawa Kupiec Milena 《Journal of Thermal Analysis and Calorimetry》2018,134(2):1101-1111
Journal of Thermal Analysis and Calorimetry - Fragile cookies are one of the most popular high-fat cereal products. Products of this type with added oat flakes may be labeled with a nutrition claim... 相似文献
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Magorzata Kowalska Anna bikowska Magdalena Wo
niak Aleksandra Amanowicz 《Molecules (Basel, Switzerland)》2022,27(2)
The aim of the study was to evaluate emulsion systems prepared on the basis of blended fat in different ratios (watermelon seed oil and mutton tallow) stabilised by orange fibres and xanthan gum. Emulsions were subjected to stability testing by Turbiscan and were assessed in terms of mean droplet size, colour, viscosity, texture, skin hydration and sensory properties. The most stable systems were found to be the ones containing a predominance of mutton tallow in a fat phase. For these emulsions the lowest increase in mean particle size during storage was observed. The study also confirmed the synergistic effect of the thickeners used. The presented emulsions despite favourable physicochemical parameters, did not gain acceptance in sensory evaluation. 相似文献
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Malgorzata Kowalska Anna Zbikowska Magdalena Wozniak Katarzyna Kucharczyk 《Journal of Dispersion Science and Technology》2017,38(11):1563-1569
This paper was aimed at determining the parameters responsible for the long-term stability of emulsions. Compositions of six emulsions with different amounts of emulsifier and thickener were developed according to the authors’ own specifications and requirements of KT-Skor software (based on Kleeman’s method). Physical properties of the emulsions were evaluated (determination of emulsion type, structure of emulsion, stability tests, viscosity, average particle size, and dispersity index). The results obtained indicate that the emulsion containing 10?g of rose oil and 0.2?g of thickener exhibited the highest stability. 相似文献
180.
Billion‐Fold Enhancement in Sensitivity of Nuclear Magnetic Resonance Spectroscopy for Magnesium Ions in Solution
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Dr. Alexander Gottberg Dr. Monika Stachura Dr. Magdalena Kowalska Dr. Mark L. Bissell Dr. Vaida Arcisauskaite Prof. Klaus Blaum Alexander Helmke Dr. Karl Johnston Dr. Kim Kreim Prof. Flemming H. Larsen Prof. Rainer Neugart Prof. Gerda Neyens Ronald F. Garcia Ruiz Daniel Szunyogh Prof. Peter W. Thulstrup Dr. Deyan T. Yordanov Prof. Lars Hemmingsen 《Chemphyschem》2014,15(18):3929-3932
β‐nuclear magnetic resonance (NMR) spectroscopy is highly sensitive compared to conventional NMR spectroscopy, and may be applied for several elements across the periodic table. β‐NMR has previously been successfully applied in the fields of nuclear and solid‐state physics. In this work, β‐NMR is applied, for the first time, to record an NMR spectrum for a species in solution. 31Mg β‐NMR spectra are measured for as few as 107 magnesium ions in ionic liquid (EMIM‐Ac) within minutes, as a prototypical test case. Resonances are observed at 3882.9 and 3887.2 kHz in an external field of 0.3 T. The key achievement of the current work is to demonstrate that β‐NMR is applicable for the analysis of species in solution, and thus represents a novel spectroscopic technique for use in general chemistry and potentially in biochemistry. 相似文献