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Active plastic tray including encapsulated essential oils improves the quality of fresh chilled blueberries.

Number: 2686

Author(s) : LÓPEZ GÓMEZ A., NAVARRO MARTINEZ A., LÓPEZ-AVILÉS F. J., MARTÍNEZ HERNÁNDEZ G. B.

Summary

 Blueberries production (mainly located in the Huelva area) in Spain has increased in the last decade due to the high health-promoting properties of these blueberries. However, the low optimum temperature for postharvest storage of blueberries implies high energy costs during conservation and transportation. However, plant essential oils (EOs) used as postharvest treatments may preserve the product quality, which may allow to increase in the setting temperature of cold rooms. EO active packaging is an excellent alternative to inefficient EO washing treatments (low EO solubility in water, high sample sensitivity to mechanical damages, removal of the antimicrobial natural waxy layer of blueberries, etc.). Hence, we studied the quality (firmness, microbial and sensorial) of blueberries during refrigerated storage (4 ºC) for up to 7 days using either EO active packaging (with an encapsulated carvacrol:oregano EO:cinnamon EO mix, 70:10:20) or commercial plastic containers. Blueberries packaged with active containers showed 20% higher firmness than control samples on day 7. Yeast loads of samples within the active packaging were 1.1 log units lower than control samples after 7 days. Overall, active packaging better preserved the quality of blueberries during cold storage, which was correlated with the sensory scores of samples.

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Pages: 5 p.

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Details

  • Original title: Active plastic tray including encapsulated essential oils improves the quality of fresh chilled blueberries.
  • Record ID : 30033449
  • Languages: English
  • Subject: Technology
  • Source: 12th CYTEF Congress - Ibero-American Congress of Refrigeration Science and Technology.
  • Publication date: 2024/06/26
  • DOI: http://dx.doi.org/ 10.21134/eyr3ny92

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