Renewable resources for biosurfactant production by yarrowia lipolytica
نویسندگان
چکیده
منابع مشابه
Factorial Design to Optimize Biosurfactant Production by Yarrowia lipolytica
In order to improve biosurfactant production by Yarrowia lipolytica IMUFRJ 50682, a factorial design was carried out. A 2(4) full factorial design was used to investigate the effects of nitrogen sources (urea, ammonium sulfate, yeast extract, and peptone) on maximum variation of surface tension (Delta ST) and emulsification index (EI). The best results (67.7% of EI and 20.9 mN m(-1) of Delta ST...
متن کاملDisruption of Yarrowia lipolytica biofilms by rhamnolipid biosurfactant
BACKGROUND Yarrowia lipolytica is an ascomycetous dimorphic fungus that exhibits biofilm mode of growth. Earlier work has shown that biosurfactants such as rhamnolipids are efficient dispersants of bacterial biofilms. However, their effectiveness against fungal biofilms (particularly Y. lipolytica) has not been investigated. The aim of this study was to determine the effect of rhamnolipid on a ...
متن کاملYarrowia lipolytica lipase production enhanced by increased air pressure.
AIMS To study the cellular growth and morphology of Yarrowia lipolytica W29 and its lipase and protease production under increased air pressures. METHODS AND RESULTS Batch cultures of the yeast were conducted in a pressurized bioreactor at 4 and 8 bar of air pressure and the cellular behaviour was compared with cultures at atmospheric pressure. No inhibition of cellular growth was observed by...
متن کاملEngineering of Yarrowia lipolytica for production of astaxanthin
Astaxanthin is a red-colored carotenoid, used as food and feed additive. Astaxanthin is mainly produced by chemical synthesis, however, the process is expensive and synthetic astaxanthin is not approved for human consumption. In this study, we engineered the oleaginous yeast Yarrowia lipolytica for de novo production of astaxanthin by fermentation. First, we screened 12 different Y. lipolytica ...
متن کاملThe production of Yarrowia lipolytica lipase powder by improved spray-drying method
Lipase is used in the production of foods, flavor enhancers, detergents, cosmetics and pharmaceuticals. A common impediment to the production of commercial enzymes is their low-stability aqueous solutions. In this study, the downstream process was investigated to obtain a stable spray-dried lipase powder of Yarrowia lipolytica. The enzyme solution samples were supplemented with different concen...
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ژورنال
عنوان ژورنال: Brazilian Journal of Chemical Engineering
سال: 2012
ISSN: 0104-6632
DOI: 10.1590/s0104-66322012000300005