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Journal of Chemistry
Volume 2015, Article ID 138707, 7 pages
Research Article

Improvement of Shelf Life and Sensory Quality of Pears Using a Specialized Edible Coating

1Department of Food Research, School of Chemistry, Universidad Autónoma de Coahuila, 25280 Saltillo, COAH, Mexico
2School of Agrnonmy, Research Center and Development for Food Industries and CIDIA, Universidad Autónoma de Nuevo León, 66050 General Escobedo, NL, Mexico
3Group of Food Biotechnology, Universidad Autónoma Agraria Antonio Narro, Calzada Antonio Narro 1923, Colonia Buenavista, 25315 Saltillo, COAH, Mexico

Received 12 January 2015; Revised 5 March 2015; Accepted 5 March 2015

Academic Editor: Leiqing Pan

Copyright © 2015 Virgilio Cruz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An edible coating functionalized with pomegranate polyphenols was designed. Different blends of candelilla wax, gum arabic, jojoba oil, and pomegranate polyphenols were formulated in order to improve the shelf life quality of pears (variety Bartlett), and all formulations were applied by immersion onto the fruit surface. Coated pears with and without polyphenols and uncoated pears (control) were stored under the same conditions. Fruits were analyzed to evaluate changes in their physicochemical, microbiological, and sensorial properties during 30 days of storage at room temperature. Coated pears coded as T13 (candelilla wax 3%, gum arabic 4%, jojoba oil 0.15%, and pomegranate polyphenols 0.015%) extended and improved their shelf life quality due to the minimization of the physic-chemical changes and sensorial properties. Therefore, the results indicated that the formulated edible coating has potential to extend the shelf life and maintain quality of pears. It was probed that coated pears were accepted for consumers as a good product. Edible coating application represents a good alternative to keep pears freshness for longer periods.