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- Title
Effect of drying and extraction conditions on the recovery of bioactive compounds from Chlorella vulgaris.
- Authors
Stramarkou, Marina; Papadaki, Sofia; Kyriakopoulou, Konstantina; Krokida, Magdalini
- Abstract
Microalgae and especially green algae are microorganisms that are used in a wide range of industrial applications of high economic interest, such as fish farming, food, cosmetics, pharmaceuticals, and biofuel. In this study, the green microalga Chlorella vulgaris was examined as raw material for the recovery of bioactive compounds and the production of multifunctional extracts. Firstly, the drying of raw biomass, which is a crucial pre-treatment stage, was examined with freeze-drying having the best performance. Ultrasound assisted extraction (UAE) applying various solvent systems was studied under optimized conditions. For the untreated microalgal biomass, ethanol was indicated as the preferable solvent, whereas on dried samples, water was a more suitable solvent. UV-Vis spectrometry and high-performance liquid chromatography (HPLC) were used for the determination of total carotenoid, chlorophyll, and protein content in the raw materials, extracts, and extraction residues. Moreover, the suitability of drying technique and extraction solvent system was evaluated according to the obtained antiradical activity of the relevant treated biomass and extraction samples using the DPPH method.
- Publication
Journal of Applied Phycology, 2017, Vol 29, Issue 6, p2947
- ISSN
0921-8971
- Publication type
Article
- DOI
10.1007/s10811-017-1181-8