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

Zudaire Villanueva, Lorena; Viñas Almenar, Inmaculada; Plaza, Lucía; Iglesias Valenzuela, María Belén; Abadias i Sero, Mª Isabel; Aguiló-Aguayo, Ingrid

doi:https://doi.org/10.1002/jsfa.9031

View/Open

Postprint (1.417Mb)

Issue date

2018

Author

Zudaire Villanueva, Lorena

Viñas Almenar, Inmaculada

Plaza, Lucía

Iglesias Valenzuela, María Belén

Abadias i Sero, Mª Isabel

Aguiló-Aguayo, Ingrid

Suggested citation

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.

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.

URI

http://hdl.handle.net/10459.1/65004

DOI

https://doi.org/10.1002/jsfa.9031

Is part of

Journal of the Science of Food and Agriculture, 2018, vol. 98, núm. 13, p. 4978-4987