Optimized Ultrasound-Assisted Extraction of Psidium laruotteanum Roots: A Concentrated Source of Piceid from the Brazilian Savanna
Author:
Takao Leandro Kenji1, Setyaningsih Widiastuti2ORCID, Gualtieri Sonia C. J.3, Ruíz-Rodríguez Ana4ORCID, Varela Rosa M.5ORCID, Palma Miguel4ORCID
Affiliation:
1. Federal Institute of Education, Science and Technology of Triângulo Mineiro (IFTM), Rua Belarmino Vilela Junqueira s/n°, Ituiutaba 38305-200, MG, Brazil 2. Department of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Gadjah Mada University, Yogyakarta 55281, Indonesia 3. Department of Botany, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil 4. Department of Analytical Chemistry, Faculty of Sciences, Agrifood Campus of International Excellence (ceiA3), Wine and Food Research Institute (IVAGRO), University of Cadiz, 11510 Puerto Real, Spain 5. Department of Organic Chemistry, Faculty of Sciences, Biomolecules Institute (INBIO), University of Cadiz, 11510 Puerto Real, Spain
Abstract
Psidium laruotteanum is a subshrub Myrtaceae, native to the Brazilian savanna, and distributed in Central and South America. Here, the health beneficial compound piceid (reservatrol-3-β-mono-d-glucoside) is described for the first time in the genus Psidium. The ultrasound-assisted extraction from P. laruotteanum roots was optimized by a response surface methodology. A central composite design was used to assess six extraction variables. Optimal extractions were obtained with 62.5% MeOH in water at 69.1 °C, amplitude of 70%, cycle of 0.5 s−1, pH 5.7 and solvent–solid ratio of 40:1, for 10 min. The method showed excellent recovery (90%–95%) and precision (CV: 0.69% for repeatability and 0.43% for intermediate precision). This species appears as the most concentrated plant source of piceid reported to date (29.15 mg·g−1 in dry roots). Additionally, a very fast extraction (5 min) can afford 96% recovery of piceid from Psidium laruotteanum roots. It could be used as a natural and cheap source of piceid for several applications.
Funder
Plan Propio-University of Cadiz
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