Post-harvest nutraceutical behaviour during ripening and senescence of 8 highly perishable fruit species from the Northern Brazilian Amazon region. Academic Article uri icon

abstract

  • The post-harvest nutraceutical characteristics of highly perishable native fruits species from the Northern Brazilian Amazon region were studied during 12 day at 15 1 C and 95 3% RH. Uxi and caja fruit showed climacteric behaviour while caju, aai de terra firme, camu-camu, inaj, murici and ara-boi were non-climacteric. Soluble solids and sugars increased for climacteric fruit while total acidity remained constant for all fruits. In general, all fruit species had high levels of total phenolics (121-9889 mg GAE 100 g(-1) dry weight pulp), vitamin C (31-1532 mg AA 100 mL(-1) juice) and antioxidant activity (AOX) (75-288 1 mol Trolox Eq 100 g(-1) dry weight, ORAC value), however, camu-camu, acai and murici were among the highest. All fruits showed an increase in phenolic content (15-82%), a simultaneous decrease in ascorbic acid in both peel (88-98%) and pulp (89-97%), while AOX increased or decreased depending on the fruit species, very likely due to the specific phenolic profile being synthesized. We propose a hypothetical model where ripening/senescence induced a redox homeostasis imbalance which in turn triggered the responses.

published proceedings

  • Food Chem

author list (cited authors)

  • Neves, L. C., Tosin, J. M., Benedette, R. M., & Cisneros-Zevallos, L.

citation count

  • 59

complete list of authors

  • Neves, Leandro Camargo||Tosin, J├ęssica Milanez||Benedette, Ronaldo Moreno||Cisneros-Zevallos, Luis

publication date

  • May 2015