S23 - Session P7 - Quality of native Brazilian fruit from the Myrtaceae family

Authors: Poliana C Spricigo, Horst B Neto, Isabela B Taver, Bárbara D Antonia, Fernanda F Pazin , Tainá B Nascimento, Angelo Pedro Jacomino *

Brazil has an extensive natural resource of native fruit plants, among them representatives of the Myrtaceae family: cambuci ( Campomanesia phaea ), uvaia ( Eugenia pyriformis ), grumixama ( Eugenia brasiliensis) and cherry of the Rio-Grande ( Eugenia involucrata). For five years, 694 samplings of these fruit were performed, being 203 samplings of cambuci, 234 samplings of uvaia, 182 samplings of grumixama and 75 samplings of cherry of the Rio-Grande. Physicochemical parameters were evaluated: height (mm), diameter (mm), fresh weight (g), seed mass (g), number of seeds, yield (%), total soluble solids (°Brix), total titratable acidity (%), proanthocyanidins (mg 100g -1 ), carotenoids (mg 100g -1 ) and anthocyanins (mg 100g -1 ). Cambucis stand out for fresh weight, with values between 9.23 +- 2.43 g and 159.97+- 28.21 g, total titratable acidity, with values between 0.78 +- 0.00 % and 5.09 +- 0.26 % and proanthocyanidins between 5.78 mg 100 g -1 and 112.43 mg 100 g -1 . Low proanthocyanidins content may provide better sensory experience for consumption in natura. In uvaias, the highest soluble solids content described was 15.30 °Brix, which represented three times more than that of the fruit containing the lowest value. Regarding total titratable acidity, fruit between 0.34 +- 0.04% and 3.88 +- 0.09% were evaluated. For carotenoids, the content in uvaias reached up to 92.10 μg g -1 . In grumixamas, one to eight seeds were observed per fruit and the maximum soluble solids content evaluated was 15.65 °Brix - over twice the lowest value. The maximum anthocyanin content was 320.46 mg 100 g -1 , while for cherry of the Rio-Grande total anthocyanins achieved up to 179.49 mg 100 g -1 . Given these physicochemical characteristics, the species may offer diverse aptitudes for their exploitation, in areas such as cosmetics, food and health.