Delay in controlled atmosphere: effect on color, biocompounds and antioxidant capacity in Hass avocado

Hass variety is the most commercialized worldwide, which is well known by the development of skin changes from green to dark purple during ripening. Fruit quality must be preserved during long transit and storage periods (40-50 day) by the use of postharvest technologies. Low–temperature storage in...

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Autores principales: Olivares, Daniela, Ulloa, Pablo Andrés, Vergara, Cristina, García Rojas, Miguel Ángel, Pedreschi, Romina, Campos Vargas, Reinaldo, Defilippi, Bruno
Formato: Articulo
Lenguaje:Inglés
Publicado: 2023
Materias:
Ciencias Agrarias
color
pigments
quality parameters
antioxidant capacity
postharvest
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/167289
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-167289
record_format dspace
spelling I19-R120-10915-1672892024-07-02T17:21:50Z http://sedici.unlp.edu.ar/handle/10915/167289 Delay in controlled atmosphere: effect on color, biocompounds and antioxidant capacity in Hass avocado Olivares, Daniela Ulloa, Pablo Andrés Vergara, Cristina García Rojas, Miguel Ángel Pedreschi, Romina Campos Vargas, Reinaldo Defilippi, Bruno 2023-12 2024-06-14T17:07:01Z en Ciencias Agrarias color pigments quality parameters antioxidant capacity postharvest Hass variety is the most commercialized worldwide, which is well known by the development of skin changes from green to dark purple during ripening. Fruit quality must be preserved during long transit and storage periods (40-50 day) by the use of postharvest technologies. Low–temperature storage in combination with controlled atmosphere (CA) is the main technology used to extend storage life. Some factors affecting CA efficacy (e.g. varieties, maturity stage and the number of days between harvest and CA storage). This study evaluated the effects of delaying the entry of Hass avocado into CA on color development, total phenolic content (TPC) and antioxidant capacity (AC). Storage conditions (5°C for 50 days) evaluated for avocado with high dry matter content were: i) regular air storage (RA), ii) CA (4% O2 and 6% CO2), iii) 10 d in RA + 40 d in CA, and iv) 20 d in RA + 30 d in CA. All evaluations were performed during storage and after shelf life (20°C), when avocadoes reached the ready-to-eat (RTE; mesocarp firmness <14 N). Results show that, as expected, skin color did not change during storage, but for the RTE fruit stored under CA showed more color development, reaching a black/purple (above 50%) color in contrast with fruit stored in RA, that only a 10% of fruit showed this color. Total chlorophylls content at the end of storage (50 days) of fruit under CA had higher levels than RA fruit. For the fruit stored under CA, anthocyanins were not detected during cold storage. At RTE stage the anthocyanin content was increased, and fruit under CA showed 5-fold more anthocyanin content than RA. Fruit with delay of 20 d showed a high increase (13-fold) in anthocyanin content. Our results indicate that avocado skin contained high amounts of TPC and AC, but decreased slightly at RTE in fruit stored under CA. In conclusion, a delaying into controlled atmosphere did not affect the development of skin color, total chlorophyll, anthocyanin content, TPC and AC during storage; however, at RTE, both skin color and anthocyanin content were benefited. Facultad de Ciencias Agrarias y Forestales Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 149-149
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
color
pigments
quality parameters
antioxidant capacity
postharvest
spellingShingle Ciencias Agrarias
color
pigments
quality parameters
antioxidant capacity
postharvest
Olivares, Daniela
Ulloa, Pablo Andrés
Vergara, Cristina
García Rojas, Miguel Ángel
Pedreschi, Romina
Campos Vargas, Reinaldo
Defilippi, Bruno
Delay in controlled atmosphere: effect on color, biocompounds and antioxidant capacity in Hass avocado
topic_facet Ciencias Agrarias
color
pigments
quality parameters
antioxidant capacity
postharvest
description Hass variety is the most commercialized worldwide, which is well known by the development of skin changes from green to dark purple during ripening. Fruit quality must be preserved during long transit and storage periods (40-50 day) by the use of postharvest technologies. Low–temperature storage in combination with controlled atmosphere (CA) is the main technology used to extend storage life. Some factors affecting CA efficacy (e.g. varieties, maturity stage and the number of days between harvest and CA storage). This study evaluated the effects of delaying the entry of Hass avocado into CA on color development, total phenolic content (TPC) and antioxidant capacity (AC). Storage conditions (5°C for 50 days) evaluated for avocado with high dry matter content were: i) regular air storage (RA), ii) CA (4% O2 and 6% CO2), iii) 10 d in RA + 40 d in CA, and iv) 20 d in RA + 30 d in CA. All evaluations were performed during storage and after shelf life (20°C), when avocadoes reached the ready-to-eat (RTE; mesocarp firmness <14 N). Results show that, as expected, skin color did not change during storage, but for the RTE fruit stored under CA showed more color development, reaching a black/purple (above 50%) color in contrast with fruit stored in RA, that only a 10% of fruit showed this color. Total chlorophylls content at the end of storage (50 days) of fruit under CA had higher levels than RA fruit. For the fruit stored under CA, anthocyanins were not detected during cold storage. At RTE stage the anthocyanin content was increased, and fruit under CA showed 5-fold more anthocyanin content than RA. Fruit with delay of 20 d showed a high increase (13-fold) in anthocyanin content. Our results indicate that avocado skin contained high amounts of TPC and AC, but decreased slightly at RTE in fruit stored under CA. In conclusion, a delaying into controlled atmosphere did not affect the development of skin color, total chlorophyll, anthocyanin content, TPC and AC during storage; however, at RTE, both skin color and anthocyanin content were benefited.
format Articulo
Articulo
author Olivares, Daniela
Ulloa, Pablo Andrés
Vergara, Cristina
García Rojas, Miguel Ángel
Pedreschi, Romina
Campos Vargas, Reinaldo
Defilippi, Bruno
author_facet Olivares, Daniela
Ulloa, Pablo Andrés
Vergara, Cristina
García Rojas, Miguel Ángel
Pedreschi, Romina
Campos Vargas, Reinaldo
Defilippi, Bruno
author_sort Olivares, Daniela
title Delay in controlled atmosphere: effect on color, biocompounds and antioxidant capacity in Hass avocado
title_short Delay in controlled atmosphere: effect on color, biocompounds and antioxidant capacity in Hass avocado
title_full Delay in controlled atmosphere: effect on color, biocompounds and antioxidant capacity in Hass avocado
title_fullStr Delay in controlled atmosphere: effect on color, biocompounds and antioxidant capacity in Hass avocado
title_full_unstemmed Delay in controlled atmosphere: effect on color, biocompounds and antioxidant capacity in Hass avocado
title_sort delay in controlled atmosphere: effect on color, biocompounds and antioxidant capacity in hass avocado
publishDate 2023
url http://sedici.unlp.edu.ar/handle/10915/167289
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