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155 results on '"Kunicka-Styczyńska, Alina"'

11. Chemical and Biological Profile and Allergenicity of Thymus baicalensis Plant of Mongolian Origin

Author

Narangerel, Tuya, primary, Sójka, Michał, additional, Bonikowski, Radosław, additional, Jastrząbek, Konrad, additional, Sroczyński, Witold, additional, Plucińska, Aleksandra, additional, Kunicka-Styczyńska, Alina, additional, Śmigielski, Krzysztof, additional, Majak, Iwona, additional, Bartos, Adrian, additional, and Leszczyńska, Joanna, additional

Published
2021
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23. Biofilms – a danger for food industry

Author

Plucińska, Aleksandra and Kunicka-Styczyńska, Alina

Abstract

Bacterial biofilm is a complex structure of microorganisms with variable qualitative composition depending on the raw materials used, parameters of the production process and localization in hardly accessible places for antimicrobial agents. At the same time, the life of bacteria in the biofilm structure increases the resistance of pathogens and the probability of their survival in adverse conditions. However, the effectiveness of biofilm removal is still not satisfactory, despite the constant improvement of the cleaning and disinfection procedures of industrial surfaces. The methods of biofilm eradication used so far can be divided into three groups (physical, biological, chemical). Numerous in vitro studies indicate that alternatives to commonly used disinfectants may be natural substances such as essential oils that have bactericidal and bacteriostatic activity. The present review will focus on describing biofilm formation and performance. In addition, the paper describes an overview of the methods used to prevent and eradicate biofilms., Biotechnology and Food Science, Vol. 82 No. 2 (2018): Biotechnology and Food Science

Published
2018
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28. Antimicrobial Potential of Chiral Amide Derivatives of Ricinoleic and 3‐Hydroxynonanoic Acid.

Author

Matysiak, Sylwia, Zabielska, Julia, Kula, Józef, and Kunicka‐Styczyńska, Alina

Subjects
AMIDE derivatives, HYDROXAMIC acids, AMIDES, CANDIDA tropicalis, CANDIDA albicans, PHARMACEUTICAL chemistry
Abstract

The growing role of fatty acid amides in medicinal chemistry has recently been observed. Therefore, using simple and fast methods, a series of chiral amide derivatives (24 compounds) of ricinoleic and 3‐hydroxynonanoic acid was obtained with 31–95% yields. Then, the evaluation of their antimicrobial activity against 13 microorganisms representing Gram‐positive and Gram‐negative bacteria, yeast, and molds was performed. The obtained compounds showed antimold potential; however, the tested species of molds were more susceptible to derivatives of 3‐hydroxynonanoic acid than to amides obtained from ricinoleic acid (RA). Interestingly, hydroxamic acids derived from RA exhibited the best activity against Candida albicans and Candida tropicalis. On the other hand, hydroxamic acids derived from 3‐hydroxynonanoic acid showed the best antimicrobial potential against the remaining tested microorganisms, especially against Pseudomonas cedrina. The obtained derivatives can be considered compounds of potential pharmacological significance, which is important due to the increasing problem of microbial resistance. [ABSTRACT FROM AUTHOR]

Published
2020
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33. The Trends and Prospects of Winemaking in Poland

Author

Kunicka-Styczyńska, Alina

Subjects
Technology & Engineering / Agriculture / Enology & Viticulture
Abstract

Viticulture and winery origins in Poland date to the tenth century, but their tradition has been reborn in the last ten years, resulting in a development of small vineyards producing excellent wines not only for the local market. Due to the cold climate, usually short summers with moderate and low temperatures, the grapes are characterized by lower sugar content and higher acidity compared to those grown in the south of Europe. According to the European Union regulations, Poland was classified as the coldest wine-growing region (A) and officially acknowledged as a wine-producing country. The grapevine cultivars adopted to the harsh climatic conditions give the Polish grape wines some unique sensory features. The most popular varieties of grapes for the production of red wine are Regent, Rondo, Pinot Noir, Maréchal Foch, Cabernet Cortis, Tryumf Alzacji, Cascade and Dornfelder. For white wine production, Solaris, Riesling, Seyval Blanc, Pinot Gris, Johanniter, Jutrzenka, Hibernal, Aurora, Bianka, Traminer, Jutrzenka and Siberia are mostly used in Poland. This chapter presents Polish grape winery with its specificity and prospects for the future. The traditional products of Polish fermentation industry, fruit wines and meads, are also mentioned.

Published
2016

34. Activity of compounds of natural origin against Alicyclobacillus acidoterrestris, a common fruit juices contaminant

Author

Tyfa, Agnieszka, Kunicka-Styczyńska, Alina, and Dąbrowska, Justyna

Abstract

Fruit product industry struggles with emerging problem of microbial contamination with Alicyclobacillus acidoterrestris. This acidothermophilic, soil-borne and sporeforming bacterium posses ability to survive commercial pasteurization and thus may cause fruit juices spoilage. Even modern technologies are not effective enough to eliminate A. acidoterrestris from the industrial environments. The green consumer attitude and safety standards suggest adaptation of natural and safe solutions. This paper summarizes the bioactivity of compounds of natural origin which could serve as anti-alicyclobacilli preservation agents maintaining stability of fruit juices., Biotechnology and Food Science, Vol. 79 No. 1 (2015): Biotechnology and Food Science

Published
2015
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44. Synthesis of (<italic>R</italic>)‐ and (<italic>S</italic>)‐Ricinoleic Acid Amides and Evaluation of Their Antimicrobial Activity.

Author

Matysiak, Sylwia, Zabielska, Julia, Kula, Józef, and Kunicka‐Styczyńska, Alina

Subjects
ENANTIOMERS, CHIRAL stationary phases, FATTY acids, AMIDES, ANTI-infective agents
Abstract

Abstract: A series of fatty acid amides derived from (R)‐ and (S)‐ricinoleic acid and 4 cyclic and acyclic amines were synthesized in a proecological solvent‐free process with yields ranging from 43 to 88%. All S‐configured compounds and both enantiomers of amide with 2‐amino‐2‐methyl‐1‐propanol were obtained and studied in terms of biological activity for the first time. The evaluation of antimicrobial activity of (R)‐ and (S)‐ricinoleic acid derivatives against 13 different microorganisms representing Gram‐negative and Gram‐positive bacteria, yeast, and molds showed significant inhibitory activity against Gram‐positive bacteria, especially Micrococcus luteus and Bacillus subtilis, and against selected molds. Ethanolamine‐ and pyrrolidine‐derived amides showed the most promising antibacterial and antimold potential. Derivatives from ricinoleic acid and pyrrolidine were the most active against both selected molds, Aspergillus brasiliensis and Penicillium expansum. Moreover, the R‐configured analog was the most potent against B. subtilis. The amides of ricinoleic acid with ethanolamine exhibited significant potential to Staphylococcus aureus, which distinguished them from the rest of tested derivatives to which this bacterium was very resistant. [ABSTRACT FROM AUTHOR]

Published
2018
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49. Abiotic Determinants of the Historical Buildings Biodeterioration in the Former Auschwitz II – Birkenau Concentration and Extermination Camp

Author

Piotrowska, Małgorzata, primary, Otlewska, Anna, additional, Rajkowska, Katarzyna, additional, Koziróg, Anna, additional, Hachułka, Mariusz, additional, Nowicka-Krawczyk, Paulina, additional, Wolski, Grzegorz J., additional, Gutarowska, Beata, additional, Kunicka-Styczyńska, Alina, additional, and Żydzik-Białek, Agnieszka, additional

Published
2014
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50. Selected Essential Oils as Antifungal Agents Against Antibiotic-Resistant Candida spp.: In Vitro Study on Clinical and Food-Borne Isolates.

Author

Rajkowska, Katarzyna, Kunicka-Styczyńska, Alina, and Maroszyńska, Marta

Subjects
*CANDIDAPEPSIN, *FUNGICIDES, *ESSENTIAL oils, *CELL membranes, *FOODBORNE diseases
Abstract

Candida spp. cause significant health problems, inducing various types of superficial and deep-seated mycoses in humans. As a result of the increasing antibiotic resistance among pathogenic yeasts, the interest in alternative agents of antifungal activity is growing. This study evaluated the antimicrobial activity of selected essential oils (EOs) against Candida clinical and food-borne strains, including antibiotic-resistant isolates, in relation to yeast cell surface hydrophobicity (CSH). Candida strains showed different range of susceptibility to tea tree, thyme, peppermint, and clove oils, and peppermint oil demonstrated the lowest anticandidal activity with minimal inhibitory concentrations (MICs) of 0.03-8.0% v/v. MIC values for thyme and clove oils ranged from 0.03% to 0.25% v/v, and for tea tree oil-from 0.12% to 2.0% v/v. The exception was Candida tropicalis food-borne strain, the growth of which was inhibited after application of EOs at concentration of 8% v/v. Due to diverse yeast susceptibility to EOs, isolates were divided into five clusters in a principal component analysis model, each containing both clinical and food-borne strains. Hydrophobic properties of yeast were also diversified, and 37% of clinical and 50% of food-borne strains exhibited high hydrophobicity. The study indicates high homology of clinical and food-borne Candida isolates in relation to their susceptibility to anticandidal agents and hydrophobic properties. The susceptibility of yeasts to EOs could be partially related to their CSH. High antifungal activity of examined EOs, also against antibiotic-resistant isolates, indicates their usefulness as agents preventing the development of Candida strains of different origin. [ABSTRACT FROM AUTHOR]

Published
2017
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