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Comprehensive characterization of the functional activities of pressurized liquid and ultrasound-assisted extracts from Chlorella vulgaris

AutorPlaza, Merichel ; Santoyo, Susana ; Jaime, Laura ; Cifuentes, Alejandro ; Reglero, Guillermo ; Señoráns, Francisco J. ; Ibáñez, Elena
Fecha de publicación2012
EditorElsevier
CitaciónFood Science and Technology 46(1): 245-253 (2012)
ResumenChlorella vulgaris has been referred as a potential source of bioactive compounds (carotenoids and fatty acids). In this work, the ability of an environmentally friendly extraction technique such as Pressurized Liquid Extraction (PLE) and a traditional extraction technique such as Ultrasound-Assisted Extraction (UAE) to obtain functional compounds from C. vulgaris, at analytical scale, has been demonstrated. Seeked bioactivities were antioxidant and antimicrobial, for their interest in the food industry. Therefore, a methodology including analytical extraction, in-vitro assays and chemical characterization via HPLC-DAD and GC-MS has been used to determine the interest of Chlorella as a source of functional food ingredients. Results demonstrated that PLE provide higher yields than UAE while similar bioactivities were obtained. Important concentration of carotenoids (lutein, neoxanthin, β-carotene, etc.), chlorophylls, sterols, phytols, and fatty acids (among others) have been found in Chlorella extracts that could be correlated to the observed biological activity. © 2011 Elsevier Ltd.
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URIhttp://hdl.handle.net/10261/51619
DOI10.1016/j.lwt.2011.09.024
Identificadoresdoi: 10.1016/j.lwt.2011.09.024
issn: 0023-6438
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