"[3BAF1BBBA420]" . . "Praha" . . "Tools modulating biodegradative functions"@en . . "Praha" . "40441" . "Kontaminace p\u016Fdy a spodn\u00EDch vod hydrofobn\u00EDmi slou\u010Deninami p\u0159in\u00E1\u0161\u00ED velmi d\u016Fle\u017Eit\u00E9 ot\u00E1zky t\u00FDkaj\u00EDc\u00ED se mo\u017Enost\u00ED jejich odstran\u011Bn\u00ED, pokud mo\u017Eno co nej\u0161etrn\u011Bj\u0161\u00EDm zp\u016Fsobem. Biodegradace hydrofobn\u00EDch slou\u010Denin se jev\u00ED jako efektivn\u00ED, ekonomick\u00E1 a ekologick\u00E1 technologie, a\u010Dkoli biologick\u00E1 dostupnost hydrofobn\u00EDch organick\u00FDch slou\u010Denin mikroorganism\u016Fm m\u016F\u017Ee b\u00FDt limituj\u00EDc\u00EDm faktorem b\u011Bhem procesu biodegradace. Tento probl\u00E9m je mo\u017En\u00E9 vy\u0159e\u0161it p\u0159id\u00E1n\u00EDm povrchov\u011B aktivn\u00EDch l\u00E1tek v koncentrac\u00EDch nad kritickou micel\u00E1rn\u00ED koncentraci. T\u00EDm se sn\u00ED\u017E\u00ED mezif\u00E1zov\u00E9 nap\u011Bt\u00ED a zv\u00FD\u0161\u00ED se dostupnost hydrofobn\u00EDch slou\u010Denin pro degradaci. Biosurfaktanty, na rozd\u00EDl od syntetick\u00FDch surfaktant\u016F maj\u00ED v\u00FDhody ve velk\u00E9 struktur\u00E1ln\u00ED rozmanitosti, kter\u00E1 m\u016F\u017Ee v\u00E9st k unik\u00E1tn\u00EDm vlastnostem, d\u00E1le mo\u017Enost cenov\u011B efektivn\u00ED v\u00FDroby a v neposledn\u00ED \u0159ad\u011B je v\u00FDhodou jejich biologick\u00E1 rozlo\u017Eitelnost. Tyto vlastnosti d\u011Blaj\u00ED z biosurfaktant\u016F vhodn\u00FD prost\u0159edek ke zlep\u0161en\u00ED biodegradace. Byla sledov\u00E1na mo\u017Enost modulace biodegradativn\u00ED aktivity pomoc\u00ED rhamnolipidov\u00FDch surfaktant\u016F. K experiment\u016Fm byly pou\u017Eity mikroorganismy izolovan\u00E9 z p\u016Fdy z oblasti kontaminovan\u00E9 hydrofobn\u00EDmi slou\u010Deninami. Jako modelov\u00E9 hydrofobn\u00ED slou\u010Deniny byly pou\u017Eity sm\u011Bsi ropn\u00FDch uhlovod\u00EDk\u016F, methylestery \u0159epn\u00E9ho oleje a sm\u011Bsi line\u00E1rn\u00EDch alken\u016F. Byla srovn\u00E1na schopnost ovlivn\u011Bn\u00ED biodostupnosti t\u011Bchto l\u00E1tek pomoc\u00ED rhamnolipid\u016F produkovan\u00FDch r\u016Fzn\u00FDmi mikroorganismy z na\u0161\u00ED laborato\u0159e." . "Prost\u0159edky modulace biodegradativn\u00ED funkce" . "Prost\u0159edky modulace biodegradativn\u00ED funkce"@cs . "2014-04-03+02:00"^^ . . "Kontaminace p\u016Fdy a spodn\u00EDch vod hydrofobn\u00EDmi slou\u010Deninami p\u0159in\u00E1\u0161\u00ED velmi d\u016Fle\u017Eit\u00E9 ot\u00E1zky t\u00FDkaj\u00EDc\u00ED se mo\u017Enost\u00ED jejich odstran\u011Bn\u00ED, pokud mo\u017Eno co nej\u0161etrn\u011Bj\u0161\u00EDm zp\u016Fsobem. Biodegradace hydrofobn\u00EDch slou\u010Denin se jev\u00ED jako efektivn\u00ED, ekonomick\u00E1 a ekologick\u00E1 technologie, a\u010Dkoli biologick\u00E1 dostupnost hydrofobn\u00EDch organick\u00FDch slou\u010Denin mikroorganism\u016Fm m\u016F\u017Ee b\u00FDt limituj\u00EDc\u00EDm faktorem b\u011Bhem procesu biodegradace. Tento probl\u00E9m je mo\u017En\u00E9 vy\u0159e\u0161it p\u0159id\u00E1n\u00EDm povrchov\u011B aktivn\u00EDch l\u00E1tek v koncentrac\u00EDch nad kritickou micel\u00E1rn\u00ED koncentraci. T\u00EDm se sn\u00ED\u017E\u00ED mezif\u00E1zov\u00E9 nap\u011Bt\u00ED a zv\u00FD\u0161\u00ED se dostupnost hydrofobn\u00EDch slou\u010Denin pro degradaci. Biosurfaktanty, na rozd\u00EDl od syntetick\u00FDch surfaktant\u016F maj\u00ED v\u00FDhody ve velk\u00E9 struktur\u00E1ln\u00ED rozmanitosti, kter\u00E1 m\u016F\u017Ee v\u00E9st k unik\u00E1tn\u00EDm vlastnostem, d\u00E1le mo\u017Enost cenov\u011B efektivn\u00ED v\u00FDroby a v neposledn\u00ED \u0159ad\u011B je v\u00FDhodou jejich biologick\u00E1 rozlo\u017Eitelnost. Tyto vlastnosti d\u011Blaj\u00ED z biosurfaktant\u016F vhodn\u00FD prost\u0159edek ke zlep\u0161en\u00ED biodegradace. Byla sledov\u00E1na mo\u017Enost modulace biodegradativn\u00ED aktivity pomoc\u00ED rhamnolipidov\u00FDch surfaktant\u016F. K experiment\u016Fm byly pou\u017Eity mikroorganismy izolovan\u00E9 z p\u016Fdy z oblasti kontaminovan\u00E9 hydrofobn\u00EDmi slou\u010Deninami. Jako modelov\u00E9 hydrofobn\u00ED slou\u010Deniny byly pou\u017Eity sm\u011Bsi ropn\u00FDch uhlovod\u00EDk\u016F, methylestery \u0159epn\u00E9ho oleje a sm\u011Bsi line\u00E1rn\u00EDch alken\u016F. Byla srovn\u00E1na schopnost ovlivn\u011Bn\u00ED biodostupnosti t\u011Bchto l\u00E1tek pomoc\u00ED rhamnolipid\u016F produkovan\u00FDch r\u016Fzn\u00FDmi mikroorganismy z na\u0161\u00ED laborato\u0159e."@cs . "functions; biodegradative; modulating; Tools"@en . "Prost\u0159edky modulace biodegradativn\u00ED funkce" . . . "RIV/60461373:22330/14:43897322!RIV15-MSM-22330___" . . "Sborn\u00EDk souhrn\u016F a pln\u00FDch text\u016F p\u0159\u00EDsp\u011Bvk\u016F konference Kvasn\u00E1 chemie a bioin\u017Een\u00FDrstv\u00ED 2014" . "Tools modulating biodegradative functions"@en . "Prost\u0159edky modulace biodegradativn\u00ED funkce"@cs . "Contamination of soil and groundwater with hydrophobic compound brings about very important issues concerning the possibility of removing them in an environmentally friendly manner. Biodegradation of hydrophobic compounds appear to be effective, economic and environmental technology, although the bioavailability of hydrophobic organic compounds for microorganisms might be a limiting factor during the process of biodegradation. This problem can be solved by adding surfactants at concentrations above the critical micellar concentration. This will reduce the interfacial tension and increase the availability of hydrophobic compounds for degradation. Biosurfactants, unlike synthetic surfactants, have the advantage of large structural diversity, which can lead to unique properties, as well as the possibility of cost-effective production and last but not least, the advantage of their biodegradability. These characteristics make biosurfactants suitable to improve biodegradation. Possibility to modulate the biodegaradative activity using rhamnolipid surfactants was studied. Microorganisms isolated from real highly contaminated soil were used as biodegradative agents. As a model hydrophobic compounds were used mixtures of petroleum hydrocarbons, methylesters of rapeseed oil and mixture of linear alkenes. The capability to influence the bioavailability of these compounds was studied with added rhamnolipids produced by various microorganisms."@en . . "Koukalov\u00E1, Mark\u00E9ta" . "Je\u017Ed\u00EDk, Richard" . . . . "Jirk\u016F, Vladim\u00EDr" . "RIV/60461373:22330/14:43897322" . . "3"^^ . . "Vysok\u00E1 \u0161kola chemicko-technologick\u00E1 v Praze" . "3"^^ . "S" . . . . "22330" . . "978-80-7080-884-9" . . "10"^^ .