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|Title:||Valorization of agro-industrial wastes towards the production of rhamnolipids|
|Author(s):||Gudiña, Eduardo J.|
Freitas, Victor de
Teixeira, J. A.
Rodrigues, L. R.
|Keywords:||Oil mill wastewater|
Corn steep liquor
|Citation:||Gudiña, Eduardo J.; Rodrigues, A.; Freitas, Victor de; Azevedo, Zélia; Teixeira, J. A.; Rodrigues, L. R., Valorization of agro-industrial wastes towards the production of rhamnolipids. Bioresource Technology, 212, 144-150, 2016|
|Abstract(s):||In this work, oil mill wastewater (OMW), a residue generated during olive oil extraction, was evaluated as an inducer of rhamnolipid production. Using a medium containing as sole ingredients corn steep liquor (10%, v/v), sugarcane molasses (10%, w/v) and OMW (25%, v/v), Pseudomonas aeruginosa #112 produced 4.5 and 5.1 g of rhamnolipid per liter in flasks and reactor, respectively, with critical micelle concentrations as low as 13 mg/l. Furthermore, in the medium supplemented with OMW, a higher proportion of more hydrophobic rhamnolipid congeners was observed comparing with the same medium without OMW. OMW is a hazardous waste which disposal represents a serious environmental problem; therefore, its valorization as a substrate for the production of added-value compounds such as rhamnolipids is of great interest. This is the first report of rhamnolipid production using a mixture of these three agro-industrial by-products, which can be useful for the sustainable production of rhamnolipids.|
|Appears in Collections:||CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series|