Abstract

PENA-BARACALDO, Fernando Javier; CHAPARRO, Hans Nicolás; ORJUELA-MATTA, Helber M.  and  ROMERO-GUERRERO, Gladys. Postharvest response of berry fruits (Vaccinium meridionale Swartz) to storage in two types of plastic. rev.udcaactual.divulg.cient. [online]. 2020, vol.23, n.2, e1730.  Epub July 30, 2020. ISSN 0123-4226.  https://doi.org/10.31910/rudca.v23.n2.2020.1730.

‘Agraz’ (Vaccinium meridionale Swartz) is a native blueberry from Colombia, being the fruit a globose berry, with nutraceutic quality due to an excellent source of antioxidants and is used as an ingredient for food preparation. The objective of this study was to evaluate the physical-chemical properties of fruits stored during 12 days, at a temperature of 2°C and a relative humidity of 90%. Fruits with two stages of ripeness, color break, an immature state (associated with red color), and fully pigmented (100% purple pigmentation) were stored, packaged in two different plastics recipients, one bioriented polyethylene and the other mono-oriented polypropylene. The results indicate that immature fruits demonstrated a prolonged preservation of the total soluble solids, when combined with the mono-oriented polypropylene packaging, otherwise TSS were significantly increased in mature fruits, packaged in mono-oriented polypropylene, affecting fruit metabolism and carbohydrate reserve. The pH diceased in all treatments, between 6 to 12 days after treatment, coinciding in turn, with the increase in total titratable acidity during the same period.

Keywords : Blueberry packaging; Refrigerated storage; Titratable total acidity; Total soluble solids.

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