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Customer / Consumer Behavior in a Particular Sphere
Králová, Blanka ; Kaňovská, Lucie (referee) ; Mráček, Pavel (advisor)
The bachelor thesis deals with the analysis of consumer behaviour in the field of visiting saunas. The theoretical part describes the basic concepts that are necessary to understand the whole thesis. This section also describes the main factors that influence consumers in their purchasing decisions. The practical part contains all the analyses carried out and on the basis of their results, proposals for appropriate communication with individual types of consumers are made.
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Customer / Consumer Behavior in a Particular Sphere
Králová, Blanka ; Kaňovská, Lucie (referee) ; Mráček, Pavel (advisor)
The bachelor thesis deals with the analysis of consumer behaviour in the field of visiting saunas. The theoretical part describes the basic concepts that are necessary to understand the whole thesis. This section also describes the main factors that influence consumers in their purchasing decisions. The practical part contains all the analyses carried out and on the basis of their results, proposals for appropriate communication with individual types of consumers are made.
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New Microbial Glycosidases
Charvátová, Andrea ; Křen, Vladimír (advisor) ; Králová, Blanka (referee) ; Walterová, Daniela (referee)
Sunrvranv Glycosidases from fungi are useful in the preparation of various glycosides mainly by transglycosylation or reversed glycosylation. The lack ofany requirement for protection- deprotection sequences, mild conditions and easier synthesis of thermodynamically not preferred glycosidic bonds are the main advantages of glycosidase-catalysed synthesis of glycosides. In ttris thesis we concentratedon exoglycosidases,mainly B.N.aceýlhexosaminidases, cr-galactosidases and cr-L-rhamnosidases. For the enzyme preparation taxonomically characterised fungal strains from public collections were used. A library comprising more than 200 various glycosidases was developed by modification ofcultivation conditions and by the use ofspecific inducers. The enrymes were used for screening ofsubstrate specificity and stability in organic solvents and subsequently for synthesis and modification of various substrates. Both B-N-acetylgalactosaminidase and B-N-acetylglucosaminidase activities in the series of B-N-acetylhexosaminidases were determined. Saccharides with strong immunomodulation activity $-o-GalpNAc-(i-+4)-o-GlcpNAc and B-o-GalpNAc-(1-+6)-o-GlcpNAc were synthesisedby transglycosylation using B-N-acetylhexosaminidase from Penicillium oxalicum CCF 2430' enryme having the highest B.N-acetylgalactosaminidase activiý....
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Noel peniclilin G acylase from bacterial strain Achromobacter sp.CCM 4824
Škrob, František ; Kyslík, Pavel (advisor) ; Gabriel, Jiří (referee) ; Králová, Blanka (referee)
83 6. Závěr 1. Kultivací bakteriálního kmene Achromobacter sp. CCM 4824 v bioreaktoru byla získána biomasa s penicilinacylasovou aktivitou jako výchozí materiál pro purifikaci enzymu. Specifická aktivita biomasy měřená se substrátem penicilin G byla 19 U·g-1 sušiny. 2. Byla vyvinuta metoda purifikace nové PGA. Specifická aktivita purifikovaného enzymu byla kolem 30 U·mg-1 proteinu s celkovým výtěžkem kolem 10 % a stupněm přečištění kolem 300. 3. Bylo zjištěno, že purifikovaný enzym se skládá ze dvou nekovalentně spojených, nestejně velkých podjednotek α a β. Přesné molekulové hmotnosti obou podjednotek byly stanoveny pomocí hmotnostní spektrometrické analýzy: α = 27,02 kDa a β = 62,45 kDa. Molekulová hmotnost β-podjednotky přibližně odpovídá hmotnostem β- podjednotek známých PGA, naopak menší α-podjednotka svou molekulovou hmotností α-podjednotky známých PGA převyšuje přibližně o 3 kDa. 4. Pomocí nativní elektroforézy a izoelektrické fokusace bylo zjištěno, že purifikovaná PGA obsahovala dvě izoformy o izoelektrických bodech pI 8,0 a 8,2. Substrátová specifita obou izoforem byla stejná, proto byla směs izoforem považována za jeden enzym. 5. Nový enzym se od známých PGA odlišuje svojí substrátovou specifitou: hydrolyzuje téměř dvojnásobnou rychlostí semisyntetická β-laktamová antibiotika, která mají na...
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New Microbial Glycosidases
Charvátová, Andrea ; Křen, Vladimír (advisor) ; Králová, Blanka (referee) ; Walterová, Daniela (referee)
Sunrvranv Glycosidases from fungi are useful in the preparation of various glycosides mainly by transglycosylation or reversed glycosylation. The lack ofany requirement for protection- deprotection sequences, mild conditions and easier synthesis of thermodynamically not preferred glycosidic bonds are the main advantages of glycosidase-catalysed synthesis of glycosides. In ttris thesis we concentratedon exoglycosidases,mainly B.N.aceýlhexosaminidases, cr-galactosidases and cr-L-rhamnosidases. For the enzyme preparation taxonomically characterised fungal strains from public collections were used. A library comprising more than 200 various glycosidases was developed by modification ofcultivation conditions and by the use ofspecific inducers. The enrymes were used for screening ofsubstrate specificity and stability in organic solvents and subsequently for synthesis and modification of various substrates. Both B-N-acetylgalactosaminidase and B-N-acetylglucosaminidase activities in the series of B-N-acetylhexosaminidases were determined. Saccharides with strong immunomodulation activity $-o-GalpNAc-(i-+4)-o-GlcpNAc and B-o-GalpNAc-(1-+6)-o-GlcpNAc were synthesisedby transglycosylation using B-N-acetylhexosaminidase from Penicillium oxalicum CCF 2430' enryme having the highest B.N-acetylgalactosaminidase activiý....
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Occurrence of β-rutinosidase in eukaryotic microorganisms
Adamcová, Kateřina ; Weignerová, Lenka (advisor) ; Králová, Blanka (referee)
Rutinosides are very common glycosidic aroma precursors. The glycosidic moiety influences wine aroma, flavour and taste of juices, so its cleavage has many consequences. These interesting insights led us to a diglycosidase - the extracellular β-rutinosidase from Aspergillus niger. The purified β- rutinosidase was partly analyzed by MALDI-TOF/TOF. The insert encoding for β-rutinosidase was ligated into the expression vector pPICZα A. Pichia pastoris KM71H was used as an expression system. It was find out, that β rutinosidase gene consists of a 1137 bp, encoding protein with 379 amino acids. The enzyme was determined to have relative molecule mass 60 kDa by sodium dodecylsulfate polyacrylamide gel electrophoresis. The pH and temperature optima of the enzyme were found to be 3,0 and 50 řC, respectively. p-Nitrophenyl-β-rutinoside was used as a substrate Powered by TCPDF (www.tcpdf.org)
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