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Molecules

Title:		Optimization of Extraction Conditions and Characterization of Volatile Organic Compounds of Eugenia klotzschiana O. Berg Fruit Pulp
Author(s):		Mariano APX; Ramos A; de Oliveira Junior AH; Garcia YM; de Paula A; Silva MR; Augusti R; de Araujo RLB; Melo JOF;
Address:		"Departamento de Alimentos, Faculdade de Farmacia, Campus Belo Horizonte, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil. Departamento de Ciencias Exatas e Biologicas, Campus Sete Lagoas, Universidade Federal de Sao Joao Del-Rei, Sete Lagoas 36307-352, Brazil. Departamento de Ciencias Agrarias, Instituto Federal de Educacao, Ciencia e Tecnologia de Minas Gerais, Campus Bambui, Bambui 38900-000, Brazil. Departamento de Nutricao, Pontificia Universidade Catolica de Minas Gerais, Belo Horizonte 30640-070, Brazil. Departamento de Quimica, Campus Belo Horizonte, Universidade Federal de Minas Gerais, Belo Horizonte 35702-031, Brazil"
Journal Title:		Molecules
Year:		2022
Volume:		20220129
Issue:		3
Page Number:		-
DOI:		10.3390/molecules27030935
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"Eugenia klotzschiana O. Berg is a native species to the Cerrado biome with significant nutritional value. However, its volatile organic compounds (VOCs) chemical profile is not reported in the scientific literature. VOCs are low molecular weight chemical compounds capable of conferring aroma to fruit, constituting quality markers, and participating in the maintenance and preservation of fruit species. This work studied and determined the best conditions for extraction and analysis of VOCs from the pulp of Eugenia klotzschiana O. Berg fruit and identified and characterized its aroma. Headspace solid-phase microextraction (HS-SPME) was employed using different fiber sorbents: DVB/CAR/PDMS, PDMS/DVB, and PA. Gas chromatography and mass spectrometry (GC-MS) were employed to separate, detect, and identify VOCs. Variables of time and temperature of extraction and sample weight distinctly influenced the extraction of volatiles for each fiber. PDMS/DVB was the most efficient, followed by PA and CAR/PDMS/DVB. Thirty-eight compounds that comprise the aroma were identified among sesquiterpenes (56.4%) and monoterpenes (30.8%), such as alpha-fenchene, guaiol, globulol, alpha-muurolene, gamma-himachalene, alpha-pinene, gamma-elemene, and patchoulene"
Keywords:		Eugenia/*chemistry Gas Chromatography-Mass Spectrometry/methods Solid Phase Microextraction/methods Volatile Organic Compounds/*isolation & purification Cerrado Myrtaceae aroma headspace solid-phase microextraction volatile organic compounds;
Notes:		"MedlineMariano, Ana P X Ramos, Ana L C C de Oliveira Junior, Afonso H Garcia, Yesenia M de Paula, Ana C C F F Silva, Mauro R Augusti, Rodinei de Araujo, Raquel L B Melo, Julio O F eng Switzerland 2022/02/16 Molecules. 2022 Jan 29; 27(3):935. doi: 10.3390/molecules27030935"