Journal
BIORESOURCE TECHNOLOGY
Volume 224, Issue -, Pages 618-629Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.10.061
Keywords
Microwave-assisted extraction; beta-Carotene; alpha-Tocopherol; gamma-Linolenic acid; Phycocyanin; FRAP
Funding
- Tecnologia Ambiental Biomex (PEI CONACYT project) [221518]
- Emerging Technologies and Molecular Nutrition, Food, Pharmaceutical and Bioproducts Development, and Environmental Bioprocess Group from Tecnologico de Monterrey
- CONACYT (Mexico) [325470]
- FEMSA Biotechnology Center
- Water Center for Latin America
- Caribbean and Environmental Quality Center
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Bioactivity and functional properties of cyanobacterial extract mostly depends on process of extraction, temperature and solvent used (polar or non-polar). To evaluate these parameters a design of experiment (DOE; using a 2(k) design) was performed with Arthrospira platensis. Extraction process was optimized through microwave-assisted extraction considering solvent ratio, temperature and time of extraction with polar (PS) and non-polar (NPS). Maximum extract yield obtained was 4.32 +/- 0.25% and 5.26 +/- 0.11% (w/w) respectively for PS and NPS. Maximum content of bioactive metabolites in PS extracts were thiamine (846.57 +/- 14.12 mu g/g), riboflavin (101.09 +/- 1.63 mu g/g), C-phycocyanin (2.28 +/- 0.10 mu g/g) and A-phycocyanin (4.11 +/- 0.03 mu g/g), while for NPS extracts were alpha-tocopherol (37.86 +/- 0.78 mu g/g), beta-carotene (123.64 +/- 1.45 mu g/g) and 19.44 +/- 0.21 mg/g of fatty acids. A. platensis PS extracts showed high antimicrobial activity and PS extracts had antioxidant activity of 0.79 +/- 0.12 mu molTE/g for FRAP assay, while for NPS extracts 1.03 +/- 0.08 lmol alpha-TE/g for FRAP assay. (C) 2016 Published by Elsevier Ltd.
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