Journal
FOOD RESEARCH INTERNATIONAL
Volume 125, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.foodres.2019.108541
Keywords
Agaricus blazei; Agroindustrial residue, ergosterol; Extraction optimization; Response surface methodology
Categories
Funding
- Foundation for Science and Technology (FCT, Portugal) [UID/AGR/00690/2019]
- FEDER under Programme PT2020 [UID/AGR/00690/2019]
- FCT, P.I.
- European Regional Development Fund (ERDF) through the Regional Operational Program North 2020 [MobilizadorNorte-01-0247 -FEDER-024479: ValorNatural]
- European Structural and Investment Funds (FEDER), through the Rural Development Program (PDR2020) [PDR2020-101-031472]
- GAIN (Xunta de Galicia) [P.P. 0000 421S 140.08]
- CAPES Foundation, Ministry of Education, Brazil [88881.120010/2016-01]
- CNPq (Conselho Nacional de Desenvolvimento Cientffico e TecnolOgico, Brazil) [307944/2015-8, 304090/2016-6]
- FEDER through COMPETE2020-POCI [POCI-01-0145-FEDER-006984]
- FCT [POCI-01-0145-FEDER-006984]
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Response surface methodology was applied to optimize the recovery of ergosterol from an agroindustrial residue of Agaricus blazei Murrill, by comparing conventional (heat-assisted extraction, HAE) and more sustainable non-conventional approaches (ultrasound and microwave-assisted extractions, UAE and MAE, respectively). A circumscribed central composite design was employed to optimize and describe the interactive effects among variables of the HAE, MAE (time and temperature) and UAE systems (time and ultrasound power), and their performances compared with the standard soxhlet extraction system. The optimum conditions were predicted as 150 min, 81.6 degrees C for HAE, 30 min, 400 W for UAE, and 25 min, 134.6 degrees C, for the MAE system. The UAE system was identified as the most appropriate technique to obtain extracts with the highest amount of ergosterol, followed by MAE and HAE. Overall, these results demonstrate the potential of using the fruiting bodies of A. blazei as a suitable source to obtain ergosterol-rich extracts, which can be used as an ingredient for various bio-based industrial applications.
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