Petr Kaštánek
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View article: Investigation of Secondary Metabolites and Their Bioactive Potential in Various <i>Iris</i> Species and Cultivars Grown under Different Cultivation Conditions
Investigation of Secondary Metabolites and Their Bioactive Potential in Various <i>Iris</i> Species and Cultivars Grown under Different Cultivation Conditions Open
This study analyzed the bioactive secondary metabolites in leaves and roots with rhizomes of various Iris species and cultivars (subgenus Iris and Limniris) grown under different conditions. Plants were cultivated in a…
View article: Pharmacokinetics of Cannabidiol in Rat Brain Tissue After Single-Dose Administration of Different Formulations
Pharmacokinetics of Cannabidiol in Rat Brain Tissue After Single-Dose Administration of Different Formulations Open
Cannabidiol (CBD), a phytocannabinoid commonly isolated from chemotype III Cannabis sativa plants, is known for its therapeutic potential. However, comprehensive information on its bioavailability is still lacking. The key objective of thi…
View article: Immunologically active cell wall polysaccharides of green microalga Dictyosphaerium chlorelloides (Chlorellacea)
Immunologically active cell wall polysaccharides of green microalga Dictyosphaerium chlorelloides (Chlorellacea) Open
Dictyosphaerium chlorelloides is a green microalga from the Chlorella clade that produces highly viscous exocellular polysaccharides. The cell wall polysaccharides of this alga have not been studied in detail. In this article, water-solubl…
View article: Diversity of cultivable lactic acid bacteria and bacilli in traditional fermented foods in Vietnam
Diversity of cultivable lactic acid bacteria and bacilli in traditional fermented foods in Vietnam Open
Lactic acid bacteria (LAB) are commonly used in many European and Asian traditional fermented foods such as yogurt, cheese, sourdough, meat, fruit, vegetables, cereal products, sour spring rolls, fish sauce, sour shrimp, chao, ruou nep, to…
View article: Marine microalgae Schizochytrium demonstrates strong production of essential fatty acids in various cultivation conditions, advancing dietary self-sufficiency
Marine microalgae Schizochytrium demonstrates strong production of essential fatty acids in various cultivation conditions, advancing dietary self-sufficiency Open
Introduction Polyunsaturated fatty acids (PUFAs) are essential nutrients that humans obtain from their diet, primarily through fish oil consumption. However, fish oil production is no longer sustainable. An alternative approach is to produ…
View article: Whole genome sequencing and characterization of Pantoea agglomerans DBM 3797, endophyte, isolated from fresh hop (Humulus lupulus L.)
Whole genome sequencing and characterization of Pantoea agglomerans DBM 3797, endophyte, isolated from fresh hop (Humulus lupulus L.) Open
Background This paper brings new information about the genome and phenotypic characteristics of Pantoea agglomerans strain DBM 3797, isolated from fresh Czech hop ( Humulus lupulus ) in the Saaz hop-growing region. Although P. agglomerans …
View article: Cannabidiol nanoemulsion for eye treatment – Anti-inflammatory, wound healing activity and its bioavailability using in vitro human corneal substitute
Cannabidiol nanoemulsion for eye treatment – Anti-inflammatory, wound healing activity and its bioavailability using in vitro human corneal substitute Open
Cannabidiol (CBD) is the non-psychoactive component of the plant Cannabis sativa (L.) that has great anti-inflammatory benefits and wound healing effects. However, its high lipophilicity, chemical instability, and extensive metabolism impa…
View article: Effective isolation of cannabidiol and cannabidiolic acid free of psychotropic phytocannabinoids from hemp extract by fast centrifugal partition chromatography
Effective isolation of cannabidiol and cannabidiolic acid free of psychotropic phytocannabinoids from hemp extract by fast centrifugal partition chromatography Open
View article: Modulation of the bacterial virulence and resistance by well-known European medicinal herbs
Modulation of the bacterial virulence and resistance by well-known European medicinal herbs Open
View article: Factors Influencing the Production of Extracellular Polysaccharides by the Green Algae Dictyosphaerium chlorelloides and Their Isolation, Purification, and Composition
Factors Influencing the Production of Extracellular Polysaccharides by the Green Algae Dictyosphaerium chlorelloides and Their Isolation, Purification, and Composition Open
The freshwater green microalgae, Dictyosphaerium chlorelloides (CCALA 330), has the ability to produce extracellular polysaccharides (EPS). Conditions for optimum growth and EPS overproduction were determined in laboratory-scale tubular ph…
View article: Effective Isolation of Cannabidiol and Cannabidiolic Acid Free of Psychotropic Phytocannabinoids from Hemp Extract by Fast Centrifugal Partition Chromatography
Effective Isolation of Cannabidiol and Cannabidiolic Acid Free of Psychotropic Phytocannabinoids from Hemp Extract by Fast Centrifugal Partition Chromatography Open
View article: Optimization of Extraction of Cannabinoids and Flavonoids Substances from Influence <i>Cannabis sp</i>. and their Biological Activities before and after Decarboxylation
Optimization of Extraction of Cannabinoids and Flavonoids Substances from Influence <i>Cannabis sp</i>. and their Biological Activities before and after Decarboxylation Open
Inflorescence of eight different varieties of Cannabis sp. (3 hemp varieties and 5 medical cannabis varieties) were subjected to extraction with n-hexane or ethanol as representatives of non-polar and polar solvents. Crude extracts …
View article: Potential of microalgae as source of health-beneficial bioactive components in produced eggs
Potential of microalgae as source of health-beneficial bioactive components in produced eggs Open
View article: Phytochemical Composition and In Vitro Biological Activity of Iris spp. (Iridaceae): A New Source of Bioactive Constituents for the Inhibition of Oral Bacterial Biofilms
Phytochemical Composition and In Vitro Biological Activity of Iris spp. (Iridaceae): A New Source of Bioactive Constituents for the Inhibition of Oral Bacterial Biofilms Open
The inhibition and eradication of oral biofilms is increasingly focused on the use of plant extracts as mouthwashes and toothpastes adjuvants. Here, we report on the chemical composition and the antibiofilm activity of 15 methanolic extrac…
View article: Influence of nitrogen sources on growth of thraustochytrids in waste water from the demineralization of cheese whey
Influence of nitrogen sources on growth of thraustochytrids in waste water from the demineralization of cheese whey Open
An experimental design was ued to optimize the growth of two thraustochytrids, (Schizochytrium limacinum PA-968 and Japonochytrium marinum AN-4), on different nitrogen sources (yeast extract, corn steep liquor, ammonium sulphate) supplemen…
View article: Estimation of growth and exopolysaccharide production by two soil cyanobacteria, <i>Scytonema tolypothrichoides</i> and <i>Tolypothrix bouteillei</i> as determined by cultivation in irradiance and temperature crossed gradients
Estimation of growth and exopolysaccharide production by two soil cyanobacteria, <i>Scytonema tolypothrichoides</i> and <i>Tolypothrix bouteillei</i> as determined by cultivation in irradiance and temperature crossed gradients Open
Two filamentous cyanobacteria of the genera Scytonema and Tolypothrix were reported to be effective for stabilizing soil in arid areas due to the production of significant amounts of extracellular polysaccharides (EPS). These EPS may also …
View article: Exopolysaccharides from Cyanobacteria and Microalgae and Their Commercial Application
Exopolysaccharides from Cyanobacteria and Microalgae and Their Commercial Application Open
Cyanobacteria and green algae are phototrophic microorganisms showing high diversity in their cellular structure in response to the environmental conditions of the niche where they occur.Production of exopolysaccharides (EPS) in response t…
View article: Erratum to: Selective bioaccumulation of rubidium by microalgae from industrial wastewater containing rubidium and lithium
Erratum to: Selective bioaccumulation of rubidium by microalgae from industrial wastewater containing rubidium and lithium Open
View article: The green alga <i>Dictyosphaerium chlorelloides</i> biomass and polysaccharides production determined using cultivation in crossed gradients of temperature and light
The green alga <i>Dictyosphaerium chlorelloides</i> biomass and polysaccharides production determined using cultivation in crossed gradients of temperature and light Open
The green microalga Dictyosphaerium chlorelloides was identified as promising microorganism for biotechnological production of exopolysaccharides (EPS). In stationary phase the culture suspension solidifies to thick gel, with very high vis…
View article: Characterizing Biochar as Alternative Sorbent for Oil Spill Remediation
Characterizing Biochar as Alternative Sorbent for Oil Spill Remediation Open
Biochar (BC) was characterized as a new carbonaceous material for the adsorption of toluene from water. The tested BC was produced from pine wood gasification, and its sorption ability was compared with that of more common carbonaceous mat…
View article: Bioprospecting of microalgae: Proper extraction followed by high performance liquid chromatographic–high resolution mass spectrometric fingerprinting as key tools for successful metabolom characterization
Bioprospecting of microalgae: Proper extraction followed by high performance liquid chromatographic–high resolution mass spectrometric fingerprinting as key tools for successful metabolom characterization Open
Currently, the interest in microalgae as a source of biologically active components exploitable as supplementary ingredients to food/feed or in cosmetics continues to increase. Existing research mainly aims to focus on revealing and recove…
View article: Microalgae for Bioenergy: Key Technology Nodes
Microalgae for Bioenergy: Key Technology Nodes Open
Microalgae have increasingly gained research interest as a source of lipids for biodiesel production. The wet way processing of harvested microalgae was suggested and evaluated with respect to the possible environmental impacts and product…