Chemical Physical Characterization and Profile of Fruit Volatile Compounds from Different Accesses of Myrciaria floribunda (H. West Ex Wild.) O. Berg through Polyacrylate Fiber.

Yesenia Mendoza García,Júlio Onésio Ferreira Melo,Rodinei Augusti,Ana Luiza Coeli Cruz Ramos,Raquel Linhares Bello De Araújo,Ana Cardoso Clemente Filha Ferreira De Paula,Maicon Heitor Do Nascimento,Eurico Eduardo Pinto De Lemos

doi:10.3390/molecules26175281

Abstract

Among the many species of native fruit of Brazil that have been little explored, there is Myrciaria floribunda (also known as rumberry, cambuizeiro, or guavaberry), a species with significant variability, which has fruits of different colors (orange, red, and purple) when ripe. The physical-chemical characteristics evaluated were fruit weight (FW), seed weight (SW), pulp weight (PW), number of seeds (NS), longitudinal diameter (LD), transverse diameter (TD), format (LD/TD), hydrogen potential (pH), soluble solids (SS), titratable acidity (TA), and ratio (SS/TA); further, the volatile organic compounds (VOCs) of nine accesses of rumberry orchards were identified. The averages of the variables FW, SW, PW, NS, LD, TD, shape, and firmness were 0.76 g, 0.22 g, 0.54 g, 1.45, 10.06 mm, 9.90 mm, 1.02, 2.96 N, respectively. LD/TD data showed that the fruits have a slightly rounded shape (LD/TD = 1). The averages for pH, SS, TA, and SS/TA were 3.74, 17.58 Brix, 4.31% citric acid, and 4.31, respectively. The evaluated parameters indicated that the fruits can be consumed both in natura and industrialized, with the red-colored fruits presenting a good balance of SS/TA, standards demanded by the processing industries. Thirty-six VOCs were identified, with emphasis on the sesquiterpenes. Caryophyllene (21.6% to 49.3%) and γ-selinene (11.3% to 16.3%) were the most predominant compounds in rumberry fruits.

Highlights

IntroductionThe rumberry has excellent potential for commercial export, widely cultivated due to its edible fruits, consumed both in natura and industrialized
Berg is a species belonging to the Myrtaceae family, from which the fruits are popularly known as ‘camboim,’ ‘jabuticabinha,’ ‘myrtle,’ ‘duke,’ ‘goiabarana,’ ‘araçazeiro,’ ‘cambuí,’ and ‘rumberry.’ In Brazil, this species can be found mainly in the Atlantic Forest biome, observed in the Northeast of the country, in the states of Sergipe and Alagoas [1]
In the absence of studies evaluating the volatile profile of Myrciaria floribunda fruits using the solid-phase microextraction technique, the objective of the present work was to characterize the volatile profile of nine rumberry accesses through the polyacrylate fiber, using SPME-HS/gas chromatograph (GC)–mass spectrometry (MS)

Summary

Introduction

The rumberry has excellent potential for commercial export, widely cultivated due to its edible fruits, consumed both in natura and industrialized. These are globose fruits, with a slightly acidic flavor, of varied color (orange, red, and purple) [2], with high sugar content and are rich in bioactive compounds (carotenoids, flavonoids, and phenolic acids) [3]. The fruits become attractive because of the intense citrusy and slightly sweet aroma of the fleshy and succulent pulp [4]

Objectives

Methods

Results

Conclusion