Jatropha oil and karanja oil as carbon sources for production of sophorolipids

Autor:	Dipti Narayan Bhowmick, Sandeep Kale, Amit P. Pratap, Sushant Dattaram Wadekar, Arvind M. Lali
Rok vydání:	2012
Předmět:	Neem oil food.ingredient Sophorolipid Food additive Linoleic acid General Chemistry Raw material Environmentally friendly Industrial and Manufacturing Engineering Oleic acid chemistry.chemical_compound food chemistry Botany Fermentation Food science Food Science Biotechnology
Zdroj:	European Journal of Lipid Science and Technology. 114:823-832
ISSN:	1438-9312 1438-7697
DOI:	10.1002/ejlt.201100282
Popis:	Biosurfactants like sophorolipids (SL) are mild and environmentally friendly surfactants to be used in cosmetics and health care products. In addition to surfactant properties, SL also possess antimicrobial and skin healing properties. SL are produced by microbial fermentation using refined vegetable oils with glucose as a carbon source. This affects the economics of the production of SL. In the present work, non-traditional oils like jatropha oil, karanja oil, and neem oil were used as newer feedstock for fermentative production of SL using Starmerella bombicola (ATCC 22214). In the fermentation, jatropha oil and karanja oil gave 6.0 and 7.6 g/L of SL (mainly lactonic form), respectively. HPLC, liquid chromatography–mass spectrometer, and 1H NMR of crude SL obtained from fermentation broth showed lactonic form of two major SL. Oleic acid and linoleic acid were preferentially consumed over other fatty acids by the organism. Neem oil gave lower yield, i.e., 2.63 g/L of SL (mainly acidic form). Practical applications: Jatropha oil and karanja oil are one of the non-traditional oils grown wildly in India that have large potential that is still to be explored. These oils contain non-glycerides components that exclude their use as edible oil. These oils can be used as substrate for SL that can find novel applications like in soil remediation, skin care production, antimicrobial agents, low foaming detergents, and food additives. The current study has provided proof of concept work that has indicated the potential of these oils to be used as substrate for SL. It has opened new avenues and there is further scope to improve the yield by validating the process parameters like aeration rate, residual substrate recycle and pH control.
Databáze:	OpenAIRE
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