Anna M. Kot
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View article: The Impact of Selenium on the Physiological Activity of Yeast Cells Saccharomyces cerevisiae ATCC 7090 and Rhodotorula glutinis CCY 20-2-26
The Impact of Selenium on the Physiological Activity of Yeast Cells Saccharomyces cerevisiae ATCC 7090 and Rhodotorula glutinis CCY 20-2-26 Open
Background: This study investigated the selenium-binding capacity of the biomass of two yeast strains, Saccharomyces cerevisiae American Type Culture Collection (ATCC) 7090 and Rhodotorula glutinis CCY 20-2-26. Methods: The studies carried…
View article: Characteristic of new Phaffia rhodozyma yeast strains isolated from birch slime fluxes in Poland
Characteristic of new Phaffia rhodozyma yeast strains isolated from birch slime fluxes in Poland Open
Three new strains of Phaffia rhodozyma yeast have recently been isolated in Poland. The aim of this study was to phenotypically characterize these strains and to compare them with the properties of the reference strain. The potential for c…
View article: Fungal Proteins: Sources, Production and Purification Methods, Industrial Applications, and Future Perspectives
Fungal Proteins: Sources, Production and Purification Methods, Industrial Applications, and Future Perspectives Open
In recent years, there has been an increasing demand for new sources of protein, both for human and animal nutrition. In addition to alternative sources of protein, such as algae or edible insects, protein obtained from yeast and mold biom…
View article: Biotechnological potential of red yeast isolated from birch forests in Poland
Biotechnological potential of red yeast isolated from birch forests in Poland Open
Objectives This study aimed to isolate red yeast from sap, bark and slime exudates collected from Polish birch forests and then assessment of their biotechnological potential. Results 24 strains of red yeast were isolated from the bark, sa…
View article: Comparison of Physicochemical Characteristics and Microbial Quality between Commercially Available Organic and Conventional Japanese Soy Sauces
Comparison of Physicochemical Characteristics and Microbial Quality between Commercially Available Organic and Conventional Japanese Soy Sauces Open
The article aims to compare the properties and quality of two types of organic Japanese soy sauce from the market, declared by manufacturers as koikuchi, and tamari, both conventional and organic, along with an attempt to determine the dif…
View article: Bioaccumulation of selenium and production of carotenoids by the yeast Rhodotorula mucilaginosa
Bioaccumulation of selenium and production of carotenoids by the yeast Rhodotorula mucilaginosa Open
Rhodotorula yeast is capable of synthesising many valuable metabolites (carotenoids, enzymes). The biomass of these microorganisms is a valuable source of oils and numerous fatty acids. The ability to synthesise carotenoids and to bind var…
View article: Comparison of the Chemical Composition and Antioxidant Properties of Propolis from Urban Apiaries
Comparison of the Chemical Composition and Antioxidant Properties of Propolis from Urban Apiaries Open
Bee products from urban apiaries are increasingly used. They are mainly used to promote local apiaries and cities in which they are located. The aim of the study was to compare the chemical composition and antioxidant activity of propolis …
View article: Magnesium Binding by Cyberlindnera jadinii Yeast in Media from Potato Wastewater and Glycerol
Magnesium Binding by Cyberlindnera jadinii Yeast in Media from Potato Wastewater and Glycerol Open
The aim of this study was to determine the magnesium-binding capacity of Cyberlindnera jadinii yeast in media prepared from potato wastewater and glycerol (after biodiesel production), supplemented with magnesium salt. The research was car…
View article: Microbial astaxanthin: from bioprocessing to the market recognition
Microbial astaxanthin: from bioprocessing to the market recognition Open
The attractive biological properties and health benefits of natural astaxanthin (AXT), including its antioxidant and anti-carcinogenic properties, have garnered significant attention from academia and industry seeking natural alternatives …
View article: Recent advances and opportunities related to the use of bee products in food processing
Recent advances and opportunities related to the use of bee products in food processing Open
Nowadays, natural foods that can provide positive health effects are gaining more and more popularity. Bees and the products they produce are our common natural heritage that should be developed. In the article, we presented the characteri…
View article: Effect of selenium and methods of protein extraction on the proteomic profile of <i>Saccharomyces</i> yeast
Effect of selenium and methods of protein extraction on the proteomic profile of <i>Saccharomyces</i> yeast Open
Selenium may influence the biosynthesis of individual proteins in the yeast cell cytosol. In this study, we used two-dimensional (2D) electrophoresis to identify proteins that are differentially expressed by the enrichment of selenium in S…
View article: Effect of Selected Cations and B Vitamins on the Biosynthesis of Carotenoids by Rhodotorula mucilaginosa Yeast in the Media with Agro-Industrial Wastes
Effect of Selected Cations and B Vitamins on the Biosynthesis of Carotenoids by Rhodotorula mucilaginosa Yeast in the Media with Agro-Industrial Wastes Open
In recent years, there has been an increase in the search for novel raw materials for the production of natural carotenoids. Among yeasts, Rhodotorula species have the ability to synthesize carotenoids, mainly β-carotene, torulene, and tor…
View article: Sporobolomyces and Sporidiobolus – non-conventional yeasts for use in industries
Sporobolomyces and Sporidiobolus – non-conventional yeasts for use in industries Open
The search for new, biotechnologically useful yeast strains has been carried out in many research centers in the world. Sporobolomyces and Sporidiobolus are examples of such useful yeasts, that can be used as a source of many valuable meta…
View article: Use of Propionibacterium freudenreichii T82 Strain for Effective Biosynthesis of Propionic Acid and Trehalose in a Medium with Apple Pomace Extract and Potato Wastewater
Use of Propionibacterium freudenreichii T82 Strain for Effective Biosynthesis of Propionic Acid and Trehalose in a Medium with Apple Pomace Extract and Potato Wastewater Open
Propionic acid bacteria are the source of many metabolites, e.g., propionic acid and trehalose. Compared to microbiological synthesis, the production of these metabolites by petrochemical means or enzymatic conversion is more profitable. T…
View article: Characteristics of the Proteolytic Enzymes Produced by Lactic Acid Bacteria
Characteristics of the Proteolytic Enzymes Produced by Lactic Acid Bacteria Open
Over the past several decades, we have observed a very rapid development in the biotechnological use of lactic acid bacteria (LAB) in various branches of the food industry. All such areas of activity of these bacteria are very important an…
View article: Carotenoids and Some Other Pigments from Fungi and Yeasts
Carotenoids and Some Other Pigments from Fungi and Yeasts Open
Carotenoids are an essential group of compounds that may be obtained by microbiological synthesis. They are instrumental in various areas of industry, medicine, agriculture, and ecology. The increase of carotenoids’ demand at the global ma…
View article: The aspects of microbial biomass use in the utilization of selected waste from the agro-food industry
The aspects of microbial biomass use in the utilization of selected waste from the agro-food industry Open
Cellular biomass of microorganisms can be effectively used in the treatment of waste from various branches of the agro-food industry. Urbanization processes and economic development, which have been intensifying in recent decades, lead to …
View article: Metabolic Response of the Yeast Candida utilis During Enrichment in Selenium
Metabolic Response of the Yeast Candida utilis During Enrichment in Selenium Open
Selenium (Se) was found to inhibit the growth of the yeast Candida utilis ATCC 9950. Cells cultured in 30 mg selenite/L supplemented medium could bind 1368 µg Se/g of dry weight in their structures. Increased accumulation of trehalose and …
View article: Novel Primer Sets for Rapid Detection of <i>Zymoseptoria tritici</i> in Wheat
Novel Primer Sets for Rapid Detection of <i>Zymoseptoria tritici</i> in Wheat Open
Zymoseptoria tritici is a fungal pathogen causing losses in wheat yields. Here, we present new primer sets for species-specific identification of this microorganism in wheat leaf samples using conventional PCR. Primer sets were validated i…
View article: Biological Activity of Some Aromatic Plants and Their Metabolites, with an Emphasis on Health-Promoting Properties
Biological Activity of Some Aromatic Plants and Their Metabolites, with an Emphasis on Health-Promoting Properties Open
The biological activities of four aromatic plants, namely frankincense, myrrh, ginger, and turmeric, were reviewed in the current study. The volatile fraction (essential oil) as well as the nonvolatile fraction of these four plants showed …
View article: Sequencing and Analysis of the Genome of Propionibacterium freudenreichii T82 Strain: Importance for Industry
Sequencing and Analysis of the Genome of Propionibacterium freudenreichii T82 Strain: Importance for Industry Open
The genome of Propionibacterium freudenreichii ssp. freudenreichii T82, which has a chromosome containing 2,585,340 nucleotides with 67.3% GC content (guanine-cytosine content), is described in this paper. The total number of genes is 2308…
View article: Accumulation of Selenium in Candida utilis Growing in Media of Increasing Concentration of this Element
Accumulation of Selenium in Candida utilis Growing in Media of Increasing Concentration of this Element Open
Selenium is considered an essential component of all living organisms. Studies on the enrichment of yeast cells with selenium, using the ability of cell biomass to bind this element, are being reported more and more. Yeast cultures were cu…
View article: Effect of exogenous stress factors on the biosynthesis of carotenoids and lipids by Rhodotorula yeast strains in media containing agro-industrial waste
Effect of exogenous stress factors on the biosynthesis of carotenoids and lipids by Rhodotorula yeast strains in media containing agro-industrial waste Open
In this study, we aimed to determine the effect of exogenous stress factors (sodium chloride as osmotic stressor, hydrogen peroxide as an inducer of oxidative stress, white light irradiation, and low temperature) on the biosynthesis of car…
View article: Simultaneous Production of Lipids and Carotenoids by the Red Yeast Rhodotorula from Waste Glycerol Fraction and Potato Wastewater
Simultaneous Production of Lipids and Carotenoids by the Red Yeast Rhodotorula from Waste Glycerol Fraction and Potato Wastewater Open
The objective of this study was to determine the possibility of simultaneous biosynthesis of lipids and carotenoids by the Rhodotorula yeast strains in media with waste glycerol and deproteinized potato wastewater and to determine the leve…