Controlled Atmosphere Storage Alleviates Hass Avocado Black Spot Disorder
As it was previously reported, black spot development in the skin of Hass avocado has been related to a decreased antioxidant defense system. The aim of this study was to investigate the effect of different postharvest storage conditions on controlling black spot development targeting their effect o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/8/5/369 |
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| author | Claudia Fuentealba Juan Vidal Claudio Zulueta Excequel Ponce Virgilio Uarrota Bruno G. Defilippi Romina Pedreschi |
| author_facet | Claudia Fuentealba Juan Vidal Claudio Zulueta Excequel Ponce Virgilio Uarrota Bruno G. Defilippi Romina Pedreschi |
| author_sort | Claudia Fuentealba |
| collection | DOAJ |
| description | As it was previously reported, black spot development in the skin of Hass avocado has been related to a decreased antioxidant defense system. The aim of this study was to investigate the effect of different postharvest storage conditions on controlling black spot development targeting their effect on the antioxidant system (non-enzymatic and enzymatic) of the skin. Four postharvest treatments (T1: regular air storage (RA) at 5 °C for 40 d; T2: controlled atmosphere storage (CA) of 4 kPa O<sub>2</sub> and 6 kPa CO<sub>2</sub> at 5 °C for 40 d; T3: 10 d RA + 30 d CA and T4: 5 µM methyl jasmonate (MeJA) for 30 s + 10 RA + 30 d CA) were tested on controlling black spot incidence in fruit from six orchards from different agroclimatic zones and harvests. Then, on two selected orchards and harvests, the evolution of total phenolics (TPC), antioxidant capacity (AC) and antioxidant enzymes (catalase (CAT), polyphenol oxidase (PPO), superoxide dismutase (SOD), peroxidase (POD), phenylalanine ammonia lyase (PAL)) was monitored. Results revealed that incidence of black spot disorder was not associated to an agroclimatic zone and harvest stage. Immediate application of CA (T2) controlled black spot development during prolonged storage (40 d) and under these conditions TPC content remained higher compared to the other treatments. No clear role of CAT, PPO, SOD, POD and PAL on controlling black spot was observed. The results obtained are of value for the Hass avocado supply chain since a clear performance of CA was evidenced that will result in reduction of postharvest losses associated to this problem. |
| first_indexed | 2024-03-10T03:47:01Z |
| format | Article |
| id | doaj.art-15e3833633054e9cbfda3b5b79855cd7 |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-10T03:47:01Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-15e3833633054e9cbfda3b5b79855cd72023-11-23T11:16:08ZengMDPI AGHorticulturae2311-75242022-04-018536910.3390/horticulturae8050369Controlled Atmosphere Storage Alleviates Hass Avocado Black Spot DisorderClaudia Fuentealba0Juan Vidal1Claudio Zulueta2Excequel Ponce3Virgilio Uarrota4Bruno G. Defilippi5Romina Pedreschi6Facultad de Ciencias Agronómicas y de los Alimentos, Escuela de Alimentos, Pontificia Universidad Católica de Valparaíso, Waddington 716, Playa Ancha, Valparaíso 2360100, ChileFacultad de Ciencias Agronómicas y de los Alimentos, Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Calle San Francisco s/n, La Palma, Quillota 2260000, ChileSociedad Gardiazabal y Mena Ltda, Calle Blanco 512, Quillota 2260890, ChileFacultad de Ciencias Agronómicas y de los Alimentos, Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Calle San Francisco s/n, La Palma, Quillota 2260000, ChileFacultad de Ciencias Agronómicas y de los Alimentos, Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Calle San Francisco s/n, La Palma, Quillota 2260000, ChileUnidad de Poscosecha, Instituto de Investigaciones Agropecuarias, INIA-La Platina, Santiago 8831314, ChileFacultad de Ciencias Agronómicas y de los Alimentos, Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Calle San Francisco s/n, La Palma, Quillota 2260000, ChileAs it was previously reported, black spot development in the skin of Hass avocado has been related to a decreased antioxidant defense system. The aim of this study was to investigate the effect of different postharvest storage conditions on controlling black spot development targeting their effect on the antioxidant system (non-enzymatic and enzymatic) of the skin. Four postharvest treatments (T1: regular air storage (RA) at 5 °C for 40 d; T2: controlled atmosphere storage (CA) of 4 kPa O<sub>2</sub> and 6 kPa CO<sub>2</sub> at 5 °C for 40 d; T3: 10 d RA + 30 d CA and T4: 5 µM methyl jasmonate (MeJA) for 30 s + 10 RA + 30 d CA) were tested on controlling black spot incidence in fruit from six orchards from different agroclimatic zones and harvests. Then, on two selected orchards and harvests, the evolution of total phenolics (TPC), antioxidant capacity (AC) and antioxidant enzymes (catalase (CAT), polyphenol oxidase (PPO), superoxide dismutase (SOD), peroxidase (POD), phenylalanine ammonia lyase (PAL)) was monitored. Results revealed that incidence of black spot disorder was not associated to an agroclimatic zone and harvest stage. Immediate application of CA (T2) controlled black spot development during prolonged storage (40 d) and under these conditions TPC content remained higher compared to the other treatments. No clear role of CAT, PPO, SOD, POD and PAL on controlling black spot was observed. The results obtained are of value for the Hass avocado supply chain since a clear performance of CA was evidenced that will result in reduction of postharvest losses associated to this problem.https://www.mdpi.com/2311-7524/8/5/369epicarpphenolicsantioxidant activityquality attributes |
| spellingShingle | Claudia Fuentealba Juan Vidal Claudio Zulueta Excequel Ponce Virgilio Uarrota Bruno G. Defilippi Romina Pedreschi Controlled Atmosphere Storage Alleviates Hass Avocado Black Spot Disorder Horticulturae epicarp phenolics antioxidant activity quality attributes |
| title | Controlled Atmosphere Storage Alleviates Hass Avocado Black Spot Disorder |
| title_full | Controlled Atmosphere Storage Alleviates Hass Avocado Black Spot Disorder |
| title_fullStr | Controlled Atmosphere Storage Alleviates Hass Avocado Black Spot Disorder |
| title_full_unstemmed | Controlled Atmosphere Storage Alleviates Hass Avocado Black Spot Disorder |
| title_short | Controlled Atmosphere Storage Alleviates Hass Avocado Black Spot Disorder |
| title_sort | controlled atmosphere storage alleviates hass avocado black spot disorder |
| topic | epicarp phenolics antioxidant activity quality attributes |
| url | https://www.mdpi.com/2311-7524/8/5/369 |
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