Sulphur Dioxide Pads Can Reduce Gray Mold While Maintaining the Quality of Clamshell-Packaged ‘BRS Nubia’ Seeded Table Grapes Grown under Protected Cultivation
The purpose of this research is to test the efficacy of different types of SO<sub>2</sub>-generating pads on the incidence of gray mold, and on the physicochemical properties of quality of ‘BRS Nubia’ seeded table grapes grown under protected cultivation. Four types of SO<sub>2<...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-04-01
|
Series: | Horticulturae |
Subjects: | |
Online Access: | https://www.mdpi.com/2311-7524/6/2/20 |
id |
doaj-b2578c579c014304b1a3d0abfc08ea6f |
---|---|
record_format |
Article |
spelling |
doaj-b2578c579c014304b1a3d0abfc08ea6f2020-11-25T02:03:42ZengMDPI AGHorticulturae2311-75242020-04-016202010.3390/horticulturae6020020Sulphur Dioxide Pads Can Reduce Gray Mold While Maintaining the Quality of Clamshell-Packaged ‘BRS Nubia’ Seeded Table Grapes Grown under Protected CultivationKhamis Youssef0Osmar Jose Chaves Junior1Débora Thaís Mühlbeier2Sergio Ruffo Roberto3Agricultural Research Center, Plant Pathology Research Institute, 9 Gamaa St., Giza 12619, EgyptAgricultural Research Center, Department of Agronomy, Londrina State University, Londrina 86057-970, PR, BrazilAgricultural Research Center, Department of Agronomy, Londrina State University, Londrina 86057-970, PR, BrazilAgricultural Research Center, Department of Agronomy, Londrina State University, Londrina 86057-970, PR, BrazilThe purpose of this research is to test the efficacy of different types of SO<sub>2</sub>-generating pads on the incidence of gray mold, and on the physicochemical properties of quality of ‘BRS Nubia’ seeded table grapes grown under protected cultivation. Four types of SO<sub>2</sub>-generating pads, 5 or 8 g of sodium metabisulfite dual release pads, and 4 or 7 g of sodium metabisulfite slow release pads, were used. Grapes bunches were harvested from a vineyard covered with plastic mash and stored in a cold room at 1 ± 1 °C for 45 days followed by 6 days of shelf life at 22 ± 1 °C at a high relative humidity (>95%). The results showed that SO<sub>2</sub>-generating pads with a dual release of 5 or 8 g completely inhibited the development of gray mold at all evaluation times. Also, a high reduction of the disease incidence was achieved by using a slow release of 4 g. The study confirmed that SO<sub>2</sub>-generating pads did not alter the physicochemical properties of ‘BRS Nubia’ seeded table grapes including mass loss, berry firmness, color index, total anthocyanin concentration, total soluble solids (TSS), titratable acidity (TA), and the TSS/TA ratio. Slow release pads at 4 and 7 g reduced the percentage of shattered berries by 56 and 48% as compared to control only after 6 days of shelf life. Also, all types of SO<sub>2</sub>-generating pads reduced the stem browning score at the end of cold storage. The 5 or 8 g dual release pads and 4 g slow release pads can be considered for effective controlling of gray mold for ‘BRS Nubia’ table grapes grown under protected cultivation while maintaining grape quality.https://www.mdpi.com/2311-7524/6/2/20grapesfruit qualitySO<sub>2</sub><i>Botrytis cinerea</i>rots |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Khamis Youssef Osmar Jose Chaves Junior Débora Thaís Mühlbeier Sergio Ruffo Roberto |
spellingShingle |
Khamis Youssef Osmar Jose Chaves Junior Débora Thaís Mühlbeier Sergio Ruffo Roberto Sulphur Dioxide Pads Can Reduce Gray Mold While Maintaining the Quality of Clamshell-Packaged ‘BRS Nubia’ Seeded Table Grapes Grown under Protected Cultivation Horticulturae grapes fruit quality SO<sub>2</sub> <i>Botrytis cinerea</i> rots |
author_facet |
Khamis Youssef Osmar Jose Chaves Junior Débora Thaís Mühlbeier Sergio Ruffo Roberto |
author_sort |
Khamis Youssef |
title |
Sulphur Dioxide Pads Can Reduce Gray Mold While Maintaining the Quality of Clamshell-Packaged ‘BRS Nubia’ Seeded Table Grapes Grown under Protected Cultivation |
title_short |
Sulphur Dioxide Pads Can Reduce Gray Mold While Maintaining the Quality of Clamshell-Packaged ‘BRS Nubia’ Seeded Table Grapes Grown under Protected Cultivation |
title_full |
Sulphur Dioxide Pads Can Reduce Gray Mold While Maintaining the Quality of Clamshell-Packaged ‘BRS Nubia’ Seeded Table Grapes Grown under Protected Cultivation |
title_fullStr |
Sulphur Dioxide Pads Can Reduce Gray Mold While Maintaining the Quality of Clamshell-Packaged ‘BRS Nubia’ Seeded Table Grapes Grown under Protected Cultivation |
title_full_unstemmed |
Sulphur Dioxide Pads Can Reduce Gray Mold While Maintaining the Quality of Clamshell-Packaged ‘BRS Nubia’ Seeded Table Grapes Grown under Protected Cultivation |
title_sort |
sulphur dioxide pads can reduce gray mold while maintaining the quality of clamshell-packaged ‘brs nubia’ seeded table grapes grown under protected cultivation |
publisher |
MDPI AG |
series |
Horticulturae |
issn |
2311-7524 |
publishDate |
2020-04-01 |
description |
The purpose of this research is to test the efficacy of different types of SO<sub>2</sub>-generating pads on the incidence of gray mold, and on the physicochemical properties of quality of ‘BRS Nubia’ seeded table grapes grown under protected cultivation. Four types of SO<sub>2</sub>-generating pads, 5 or 8 g of sodium metabisulfite dual release pads, and 4 or 7 g of sodium metabisulfite slow release pads, were used. Grapes bunches were harvested from a vineyard covered with plastic mash and stored in a cold room at 1 ± 1 °C for 45 days followed by 6 days of shelf life at 22 ± 1 °C at a high relative humidity (>95%). The results showed that SO<sub>2</sub>-generating pads with a dual release of 5 or 8 g completely inhibited the development of gray mold at all evaluation times. Also, a high reduction of the disease incidence was achieved by using a slow release of 4 g. The study confirmed that SO<sub>2</sub>-generating pads did not alter the physicochemical properties of ‘BRS Nubia’ seeded table grapes including mass loss, berry firmness, color index, total anthocyanin concentration, total soluble solids (TSS), titratable acidity (TA), and the TSS/TA ratio. Slow release pads at 4 and 7 g reduced the percentage of shattered berries by 56 and 48% as compared to control only after 6 days of shelf life. Also, all types of SO<sub>2</sub>-generating pads reduced the stem browning score at the end of cold storage. The 5 or 8 g dual release pads and 4 g slow release pads can be considered for effective controlling of gray mold for ‘BRS Nubia’ table grapes grown under protected cultivation while maintaining grape quality. |
topic |
grapes fruit quality SO<sub>2</sub> <i>Botrytis cinerea</i> rots |
url |
https://www.mdpi.com/2311-7524/6/2/20 |
work_keys_str_mv |
AT khamisyoussef sulphurdioxidepadscanreducegraymoldwhilemaintainingthequalityofclamshellpackagedbrsnubiaseededtablegrapesgrownunderprotectedcultivation AT osmarjosechavesjunior sulphurdioxidepadscanreducegraymoldwhilemaintainingthequalityofclamshellpackagedbrsnubiaseededtablegrapesgrownunderprotectedcultivation AT deborathaismuhlbeier sulphurdioxidepadscanreducegraymoldwhilemaintainingthequalityofclamshellpackagedbrsnubiaseededtablegrapesgrownunderprotectedcultivation AT sergiorufforoberto sulphurdioxidepadscanreducegraymoldwhilemaintainingthequalityofclamshellpackagedbrsnubiaseededtablegrapesgrownunderprotectedcultivation |
_version_ |
1724946373228363776 |