Abstract
The objective of this study was to explore the extraction and identification of volatile organic compounds (VOCs) present in cagaita fruit (Eugenia dysenterica). Parameters such as type of extraction fiber, agitation, extraction time and extraction temperature were investigated. Initially, the VOCs were extracted using headspace solid-phase microextraction. Then, the compounds were identified using gas chromatography coupled to mass spectrometry. Results revealed the presence of at least 26 different compounds and the polyacrylate (PA) fiber promoted the extraction of a larger number of VOCs. Regarding the PA fiber, the most efficient extraction was achieved using a 50 rpm agitation at 45 oC for 30 min. The majority were monoterpenes (34.64%) and esters (36.28%). An increase in the extraction temperature promoted the isolation of more VOCs when using carboxen/polydimethylsiloxane (CAR/PDMS) and divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) fibers. However, these fibers allowed the isolation of a smaller number of VOCs. The extraction time and agitation had no significant influence.
Highlights
The Cerrado, which covers 22% of Brazil’s territory, is the second largest biome in Latin America, only behind the Amazonian forest, and it is a source of many plant species that play an important role in folk medicine and in food
The optimization of volatile organic compounds (VOCs) extraction conditions by headspace solidphase microextraction (HS-SPME) were performed through multivariate analysis seeking to evaluate the effect of the agitation, time and temperature of extraction on each type of SPME fiber
The number of VOCs identified was considered as response, since this study aimed to optimize a method to determine the largest amount of volatile compounds in cagaita
Summary
The Cerrado, which covers 22% of Brazil’s territory, is the second largest biome in Latin America, only behind the Amazonian forest, and it is a source of many plant species that play an important role in folk medicine and in food. There are different types of fruits, with unique sensory and nutritional characteristics, which gives them economic, through the commercialization of derived products, and nutritional importance, by their consumption.[1,2,3] One of these fruits is the Eugenia dysenterica DC, an exotic fruit of the Myrtaceae family, which is popularly
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