%0 Journal Article 
%A Takao, L.K.
%A Setyaningsih, Widiastuti
%A Gualtieri, S.C.J.
%A Ruiz Rodríguez, Ana
%A Varela Montoya, Rosa María
%A Palma Lovillo, Miguel
%T Optimized Ultrasound-Assisted Extraction of Psidium laruotteanum Roots: A Concentrated Source of Piceid from the Brazilian Savanna
%D 2023
%@ 1999-4907
%U http://hdl.handle.net/10498/31691
%X 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.
%K araçá-cascudo
%K experimental design
%K Psidium laruotteanum
%K trans-piceid
%K ultrasound-assisted extraction
%~ Universidad de Cádiz