Effect of Modified Atmosphere Packaging (MAP) and UV-C Irradiation on Postharvest Quality of Red Raspberries

David Gimeno, Jaime Gonzalez-Buesa, Rosa Oria, Maria Eugenia Venturini and Esther Arias
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David Gimeno: Grupo de Investigación de Alimentos de Origen Vegetal, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, C/Miguel Servet 177, 50013 Zaragoza, Spain
Jaime Gonzalez-Buesa: Grupo de Investigación de Alimentos de Origen Vegetal, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, C/Miguel Servet 177, 50013 Zaragoza, Spain
Rosa Oria: Grupo de Investigación de Alimentos de Origen Vegetal, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, C/Miguel Servet 177, 50013 Zaragoza, Spain
Maria Eugenia Venturini: Grupo de Investigación de Alimentos de Origen Vegetal, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, C/Miguel Servet 177, 50013 Zaragoza, Spain
Esther Arias: Grupo de Investigación de Alimentos de Origen Vegetal, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, C/Miguel Servet 177, 50013 Zaragoza, Spain

Agriculture, 2021, vol. 12, issue 1, 1-18

Abstract: Red raspberries ( Rubus idaeus L.) are highly appreciated by consumers. However, their postharvest shelf life scarcely exceeds 5 d under the refrigeration temperatures usually applied during commercialization, due to their high susceptibility to dehydration, softening and rot incidence. Thus, the objective of this study was to investigate the ability of UV-C radiation (UV1: 2 kJ m −2 and UV2: 4 kJ m −2 ), passive modified atmosphere packaging (MAP) with transmission rates (TR) for O 2 and CO 2 of 1805 mL d −1 and 1570 mL d −1 (MAP1), and 902 mL d −1 and 785 mL d −1 (MAP2), respectively, and the combination of both technologies to prolong raspberries’ shelf life at 6 °C. Their influence on respiration, physicochemical parameters, and microbiological and nutritional quality was assessed during 12 d of storage. The combination of 4 kJ m −2 UV-C radiation and a packaging film with O 2 and CO 2 transmission rates of 902 mL d −1 and 785 mL d −1 , respectively, produced a synergistic effect against rot development, delaying senescence of the fruit. The UV2MAP2 and MAP2 samples only showed 1.66% rot incidence after 8 d of storage. The UV2MAP2 samples also had higher bioactive content (1.76 g kg −1 of gallic acid equivalents (GAE), 1.08 g kg −1 of catechin equivalents (CE) and 0.32 g kg −1 of cyanidin 3- O -glucoside equivalents (CGE)) than the control samples at the end of their shelf life. Moreover, the mass loss was minimal (0.56%), and fruit color and firmness were maintained during shelf life. However, the rest of the batches were not suitable for commercialization after 4 d due to excessive mold development.

Keywords: postharvest quality; fruit irradiation; transmission rate; shelf life; phenolic compounds; combined treatments (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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