UPLC-QTOF-MS Analysis of Extracts from the Leaves of Pouteria Caimito (Sapotaceae) and Their Antioxidant Activity
Journal of Biosciences and Medicines, 2019, 7, 92-101 http://www.scirp.org/journal/jbm ISSN Online: 2327-509X ISSN Print: 2327-5081 UPLC-QTOF-MS Analysis of Extracts from the Leaves of Pouteria caimito (Sapotaceae) and Their Antioxidant Activity Lorrayne Clemente Ribeiro de Sousa1, Almir Ribeiro de Carvalho Junior2, Mario Geraldo de Carvalho3, Tania Maria Sarmento da Silva4, Rafaela Oliveira Ferreira1* 1Universidade Federal do Tocantins, Gurupi, Brazil 2Instituto Federal de Santa Catarina, Criciúma, Brazil 3Universidade Federal Rural do Rio de Janeiro, Seropédica, Brazil 4Universidade Federal Rural de Pernambuco, Recife, Brazil How to cite this paper: de Sousa, L.C.R., Abstract de Carvalho Junior, A.R., de Carvalho, M.G., da Silva, T.M.S. and Ferreira, R.O. This study describes the phytochemical profile and antioxidant activity of an (2019) UPLC-QTOF-MS Analysis of Ex- extract from the leaves of Pouteria caimito (Sapotaceae). The extract in etha- tracts from the Leaves of Pouteria caimito nol was obtained by maceration at room temperature and subjected to the (Sapotaceae) and Their Antioxidant Activ- ity. Journal of Biosciences and Medicines, liquid-liquid partition to obtain fractions in hexane and ethyl acetate. Ster- 7, 92-101. oids, triterpenes, saponins, alkaloids and flavonoids were identified by the https://doi.org/10.4236/jbm.2019.73009 phytochemical prospection of extracts and fractions from the leaves. The analysis of the ethyl acetate fraction by UPLC-QTOF-MS allowed us to iden- Received: January 31, 2019 Accepted: March 22, 2019 tify eight triterpenes, namely, euscaphic acid (1), hyptadienic acid (2), Published: March 25, 2019 betulinic acid (3), oleanolic acid (4), ursolic acid (5), 3β-(O-p-coumaroyl)- alphitolic acid (6), 3β-(O-p-coumaroyl)-maslinic acid (7) and 3β-(O-p-cou- Copyright © 2019 by author(s) and maroyl)-2-hydroxy-urs-12-en-28-oic acid (8).
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