Comparison of two yeast biosurfactants for the removal of petroleum hydrocarbons

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F13%3A43895301" target="_blank" >RIV/60461373:22320/13:43895301 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/26295059:_____/13:#0000031

Výsledek na webu

<a href="http://www.wasteforum.cz/cisla/WF_2_2013.pdf" target="_blank" >http://www.wasteforum.cz/cisla/WF_2_2013.pdf</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of two yeast biosurfactants for the removal of petroleum hydrocarbons

Popis výsledku v původním jazyce

The aim of this paper was to produce, isolate and characterize two types of biosurfactant produced by yeasts Yarrowia lipolytica and Candida bombicola and quantify their potential for stimulated attenuation. Critical micelle concentration (CMC) and minimum surface tension (MST) were determined for both biosurfactants. CMC = 31 mg/L and MST = 40 mN/m (producer Yarrowia lipolytica), CMC = 83 mg/L and MST = 43 mN/m (producer Candida bombicola). Lower interfacial tension causes that non-polar carbon sourcecan be easily utilized by microorganisms, thus dependence of interfacial tension between organic phase and surfactant solution was measured. Kerosene and crude oil were chosen as representatives of organic phase. Biosurfactant produced by Yarrowia lipolytica was found to be more effective for remediation application, because its solution decreased the interfacial tension by 80%.

Název v anglickém jazyce

Comparison of two yeast biosurfactants for the removal of petroleum hydrocarbons

Popis výsledku anglicky

The aim of this paper was to produce, isolate and characterize two types of biosurfactant produced by yeasts Yarrowia lipolytica and Candida bombicola and quantify their potential for stimulated attenuation. Critical micelle concentration (CMC) and minimum surface tension (MST) were determined for both biosurfactants. CMC = 31 mg/L and MST = 40 mN/m (producer Yarrowia lipolytica), CMC = 83 mg/L and MST = 43 mN/m (producer Candida bombicola). Lower interfacial tension causes that non-polar carbon sourcecan be easily utilized by microorganisms, thus dependence of interfacial tension between organic phase and surfactant solution was measured. Kerosene and crude oil were chosen as representatives of organic phase. Biosurfactant produced by Yarrowia lipolytica was found to be more effective for remediation application, because its solution decreased the interfacial tension by 80%.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DK - Kontaminace a dekontaminace půdy včetně pesticidů

OECD FORD obor

—

Projekt

<a href="/cs/project/TA01020482" target="_blank" >TA01020482: Vývoj biologického surfaktantu pro sanační promývání kontaminovaných matric životního prostředí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Waste forum

ISSN

1804-0195

e-ISSN

—

Svazek periodika

neuveden

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

104-109

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—