Short Communication | Volume: 8, Issue: 9, September, 2018

Variation of Ursolic and Betulinic Acid in Five Malus × domestica clones from Southern Brazil

Andreia C. Wildner Pâmela L. Ferreira Sendy S. Oliveira Simone B. Gnoatto Ana M. Bergold   

Open Access   

Published:  Sep 30, 2018

DOI: 10.7324/JAPS.2018.8922

An easy, fast and efficient combination of ultrasonic-assisted extraction (UAE) with liquid chromatography-mass spectrometry (LC-MS) was developed for the identification and quantification of ursolic acid (UA) and betulinic acid (BA) in apple peel extract of five clones of Gala and Fuji cultivars (“Baigent”, “Fuji Mishima”, “Fuji Suprema”, “Fuji Select” and “Maxi Gala”) from southern Brazil. UA and BA extraction using acetone as a solvent was successfully performed. Chromatographic parameters of the analytical method include positive electrospray ionization (ESI+) with a flow of 1 mL−1 in isocratic mode consisting of 80% acetonitrile and 20% ammonium acetate 10 mM pH 6.0, at room temperature. The method proved to be selective, sensitive, with LOD and LOQ of, 0.087 and 0.266 μg.mL−1 for BA, and 0.398 and 2.117 μg.mL−1 for UA, linear (r > 0.99), precise, accurate and robust, for all analytes. The optimization of UAE combined with the LC-MS technique allowed completing the procedure (extraction and analysis) in less than 4 h. These methods were applied for the first-time characterization of five clones. The results demonstrated that the UAE-LC-MS method is applicable to the routine analysis of triterpene acids in apple peel.

Keyword:     Triterpene LC-MS ultrasound apple peel ursolic acid betulinic acid.


Wildner AC, Ferreira PL, Oliveira SS, Gnoatto SB, Bergold AM. Variation of Ursolic and Betulinic Acid in Five Malus × domestica clones from Southern Brazil. J App Pharm Sci, 2018; 8(09): 158-165.

Copyright: © The Author(s). This is an open-access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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