Evaluation of sophorolipid biosurfactant production by Candida bombicola using animal fat

Castor Oil as Secondary Carbon Source for Production of Sophorolipids Using <i>Starmerella bombicola</i> NRRL Y-17069

“…Sophorolipids have been previously synthesized using various raw materials like canola oil, oleic acid, sunflower oil, α-linoleic acid, soybean oil. The use of water soluble substrate like glucose 10 or glycerol 10 produce sophorolipid by de novo synthesis but when water soluble substrates used with hydrophobic substrate 10 gives higher yield. In the current study, castor oil 10 was used as hydrophobic carbon source along with glycerol 10 for production of sophorolipids using Starmerella bombicola NRRL Y-17069.…”

“…Using these oils it is impossible to compete the cost of sophorolipids with available chemical surfactant in market. Cheaper raw material such as animal fat, crude oleic acid, dairy waste water, molassess and whey waste were tried for SL production 10 . In this study, non edible oil such as castor oil, present widely in India, along with glycerol is used as raw material for production of sophorolipids.…”

Removal of Oil Tank Bottom Sludge by Novel Biosurfactant, JE1058BS

“…Economic analysis for a microbial produced biosurfactant, sophorolipid, was previously reported in case of processes using animal fat. The production cost was estimated as $ 2.5-3.0/kg from the data with a fermentation productivity of 97 g/L in 3 days, followed by column chromatography 12) . Although the fermentation data reported for JE1058BS were lower, crude BS preparation by spray drying directly from the culture broth could be more advantageous than the case of sophorolipid, as described previously 7) .…”

Valorisation of food waste in biotechnological processes

“…This approach is particularly interesting as other carbon sources e.g. sunflower, safflower and canola oils, but also oils from food waste are utilisable as precursor in sophorolipid production [44,45].…”

“…Deshpande and Daniels [44] investigated the lipolytic yeast Candida bombicola for production of sophorolipids, a group of glycolipid bio-surfactants. After 68 hours of fermentation time a sophorolipid concentration of 120 g L -1 was obtained on a complex medium containing animal fat and glucose as carbon sources at pH 3.4 and 27°C.…”