SO2-Generating Pads and Packaging Materials for Postharvest Conservation of Table Grapes: A Review

Aguiar, Aline Cristina de; Higuchi, Maíra Tiaki; Yamashita, Fábio; Roberto, Sérgio Ruffo

doi:10.3390/horticulturae9060724

Cited by 9 publications

(9 citation statements)

References 54 publications

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“…This was also observed in our research, where both SGPs were effective in containing the percentage of berries with rot/mold compared to the Control, for which, as mentioned earlier, grapes at T2 were covered with mold to a rate exceeding 70% (Table 2) and thus deemed inedible. Moreover, the SGP, combined with cold storage, yielded appreciable results in terms of containing the phenomenon of stem browning, as reported in other studies [55]. It is also worth noting that the incidence of SO 2 -induced damage caused by SGPs, while statistically significant compared to the Control, was marginal in terms of magnitude, with values averaging below 2%.…”

Section: Discussionsupporting

confidence: 80%

From Farm to Fork: Irrigation Management and Cold Storage Strategies for the Shelf Life of Seedless Sugrathirtyfive Table Grape Variety

Alba,

Russi,

Forte

et al. 2024

Sustainability

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Background: Sustainable water management for table grape has the primary goal of optimizing irrigation through Smart Irrigation (SI) approaches, particularly in Mediterranean regions. In addition, extending the shelf life of table grapes through effective cold storage practices is crucial to meet consumer demands year-round. This research examined the journey “from farm to fork” of Sugrathirtyfive variety (Autumn Crisp® brand), exploring the combined effects of Irrigation Volumes (IV), SO2-Generating Pads (SGPs) and Cold Storage Duration (CSD) on the quality of grapes. Methods: Normal Irrigation (NI—based on the farmer’s experience) and SI (100% vine evapotranspiration restored) were supplied in 2023 to Sugrathirtyfive variety white table grape, trained to an overhead tendone system. Yield and quality parameters, berry texture, CIELAB colour coordinates, phenolic content, flavonoids, antioxidant activity and sensory attributes were evaluated on grapes subjected to different times and methods of cold storage. Results: SI grapes showed higher Total Soluble Solids (TSSs) and nutraceutical content, as well as improved CIELAB coordinates with interesting improved berry texture parameters. No differences emerged between single- or dual-release SGPs after 15 days (T1) and 40 days (T2) of CSD. Conclusions: Under our cold storage conditions (3 °C, 85% U.R.), 40 days represent the maximum temporal limit for the cold storage of Sugrathirtyfive variety, regardless of IV, provided they are refrigerated with the aid of SGPs.

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Section: Discussionsupporting

confidence: 80%

From Farm to Fork: Irrigation Management and Cold Storage Strategies for the Shelf Life of Seedless Sugrathirtyfive Table Grape Variety

Alba,

Russi,

Forte

et al. 2024

Sustainability

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“…P(Survival OC ) and P(Survival AC ), are estimated from experimental data of P. callosus survival as function of duration of various low temperature treatments with or without SO 2 (Myburgh & Kriegler, 1968) (see Table 6 in Section 3.3.2.3 for details). Today, transport at low temperature and use of SO 2 is commonly applied to storage and transport of table grapes (de Aguiar et al., 2023).…”

Section: Data and Methodologiesmentioning

confidence: 99%

Risk assessment of Phlyctinus callosus for the EU

Bragard,

Baptista,

Chatzivassiliou

et al. 2024

EFS2

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Following a request from the European Commission, the EFSA Panel on Plant Health performed a quantitative risk assessment for the EU of Phlyctinus callosus (Coleoptera: Curculionidae), a polyphagous pest occurring in Australia, New Zealand and South Africa. The current risk assessment focused on potential pathways for entry, the climatic conditions allowing establishment, the expected spread capacity and the impact considering a time horizon of 10 years (2023–2032). The Panel identified the import of apples, cut flowers and table grapes as the most relevant entry pathways. Over the next 10 years, an annual median estimate of approximately 49.5 (90% certainty range, CR, ranging from 4.0 to 881.2) potential P. callosus founder populations are expected. When the probability of establishment is considered and climatic indicators are used to define the areas in the EU where establishment is possible, the model estimated a median of 1 founder population every 1.3 years (90% CR: 1 every 30.8 years to 23.3 per year) in the scenario where the areas are defined by the union of all the climatic indicators and 1 founder population every 11.9 years (90% CR: 1 every 256.6 years to 2.5 per year) in the scenario where establishment is possible only in the areas defined by the climatic indicator of minimum soil temperature. The estimated number of founder populations per year is mostly driven by the probability of establishment in the rural areas, infestation rate in table grapes and the probability of transfer to a suitable host in the rural area. The risk of entry for cut flowers and apples is substantially lower than the risk from the table grapes. If such founder populations were to establish, P. callosus is estimated to spread by natural dispersal and common agricultural practices at a rate of 15.5 m/year (90% CR 5.1–46.8 m/year) after a lag phase of 4.0 years (90% CR 1.3–8.7 years). The impact, expressed as percentage loss of the production directly attributable to P. callosus in the areas where establishment is possible and assuming farmers do not apply specific control measures was estimated at 0.5% (90% CR 0.01%–2.8%) for cut flowers/foliage, 5.2% (90% CR 2.2%–11.7%) for apples and 2% (90% CR 1.3%–5.2%) for table grapes. Options for risk reduction are discussed, but their effectiveness is not quantified.

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“…Plastic clamshells containing grape bunches subjected to FieldSO 2 were arranged in a cardboard box, and an SO 2 -generating pad (SlowSO 2 or DualSO 2 ) was placed on top according to the treatment. Finally, the liner was sealed with an adhesive tape [3].…”

Section: Grape Packagingmentioning

confidence: 99%

“…Depending on the grape cultivar, bunches tolerate storage temperatures as low as −2 • C without significant damage from freezing. To ensure the fast cooling of the grapes, the packaging system, including the cardboard boxes and liners, should provide sufficient air movement over the berries via perforations in the packaging [2,3].…”

Section: Introductionmentioning

confidence: 99%

Active Packaging Systems to Extend the Shelf Life of ‘Italia’ Table Grapes

Higuchi,

Aguiar,

Leles

et al. 2024

Horticulturae

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Sulfur dioxide (SO2)-generating pads associated with perforated plastic liners are often used to control gray mold in table grapes during cold storage; however, SO2 may cause bleaching, shattered berries, and an unwanted taste. To overcome this difficulty, a field ultrafast SO2-generating pad was designed to be used for a few hours before packaging grape bunches as an alternative for eradicating spores of fungi from berry skin. This study aimed to assess the postharvest conservation and shelf life of ‘Italia’ table grapes packaged in plastic clamshells and perforated plastic liners using the field ultra-fast SO2-generating pads before packaging, associated with or without slow- or dual-phase SO2-generating pads during cold storage. The packaged grapes were cold stored (1.0 ± 1.0 °C; 95% relative humidity), and after 45 d, grapes were placed at room temperature (22.0 ± 1.0 °C) without plastic liners and SO2-generating pads for 3 d. Before and after the grapes had been subjected to the field ultra-fast SO2-generating pads, the quantification of filamentous fungi on the surface of the berries was assessed. The use of field ultra-fast SO2-generating pads before packaging, associated with slow- or dual-phase SO2-generating pads during cold storage, resulted in a lower incidence of gray mold after 45 d of storage, with low weight loss and shattered berries, good preservation of stem freshness, and no impairment in the color and firmness of the berries. Additionally, a significant decrease in disease incidence was observed when using only the dual-phase SO2-generating pads in cold storage, with good maintenance of bunch quality.

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SO2-Generating Pads and Packaging Materials for Postharvest Conservation of Table Grapes: A Review

Cited by 9 publications

References 54 publications

From Farm to Fork: Irrigation Management and Cold Storage Strategies for the Shelf Life of Seedless Sugrathirtyfive Table Grape Variety

From Farm to Fork: Irrigation Management and Cold Storage Strategies for the Shelf Life of Seedless Sugrathirtyfive Table Grape Variety

Risk assessment of Phlyctinus callosus for the EU

Active Packaging Systems to Extend the Shelf Life of ‘Italia’ Table Grapes

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