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Evaluation of postharvest calcium treatment and biopreservation with Lactobacillus rhamnosus GG on the quality of fresh‐cut ‘Conference’ pears

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Issue date
2018
Author
Zudaire Villanueva, Lorena
Viñas Almenar, Inmaculada
Plaza, Lucía
Iglesias Valenzuela, María Belén
Abadias i Sero, Mª Isabel
Aguiló-Aguayo, Ingrid
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Zudaire Villanueva, Lorena; Viñas Almenar, Inmaculada; Plaza, Lucía; Iglesias Valenzuela, María Belén; Abadias i Sero, Mª Isabel; Aguiló-Aguayo, Ingrid; . (2018) . Evaluation of postharvest calcium treatment and biopreservation with Lactobacillus rhamnosus GG on the quality of fresh‐cut ‘Conference’ pears. Journal of the Science of Food and Agriculture, 2018, vol. 98, núm. 13, p. 4978-4987. https://doi.org/10.1002/jsfa.9031.
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Abstract
BACKGROUND Biological preservation with probiotic bacteria has arisen as an alternative to control the growth of foodborne pathogens on food. The objective of this work was to evaluate the effect of postharvest calcium application and biopreservation with Lactobacillus rhamnosus GG on the quality and bioaccessibility of total phenolic content and antioxidant activity in fresh‐cut pears. RESULTS The immersion of whole pears in a calcium chloride solution did not provide added value. Despite the increase in observed activity of PME and PPO enzymes in fresh‐cut pears during storage, the browning index and firmness values were constant for all samples. The antioxidant properties, including antioxidant activity, total phenolic content and vitamin C content, were maintained during storage, but a significant decrease was observed after in vitro simulated digestion. Ca/LGG samples showed the lowest calcium content (1.75 ± 0.00 g kg−1) after 9 d of storage at 4 °C. In general, the overall visual quality scores were higher in fresh‐cut pears treated with L. rhamnosus GG than in non‐treated pears, with the highest values in the NoCa/LGG (7.7 ± 0.2) samples after 9 d at 4 °C. CONCLUSION Fresh‐cut pears with a postharvest treatment of calcium and immersed in a solution containing antioxidant agents and probiotic bacteria could be a suitable alternative to dairy products for maintaining the overall quality of fruit for up to 9 d of storage.
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http://hdl.handle.net/10459.1/65004
DOI
https://doi.org/10.1002/jsfa.9031
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Journal of the Science of Food and Agriculture, 2018, vol. 98, núm. 13, p. 4978-4987
European research projects
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  • Articles publicats (Grup de Recerca en Postcollita) [57]
  • Articles publicats (Tecnologia dels Aliments) [567]
  • Articles publicats (Agrotecnio Center) [1206]
  • Publicacions de projectes de recerca del Plan Nacional [2684]

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