Fruit Sorting Based on Maturity Reduces Internal Disorders in Vapor Heat-Treated ‘B74’ Mango
Postharvest internal disorders (IDs) in mango fruit present a significant challenge to the industry, with their underlying causes still unclear. This study investigated the relationship between fruit maturity and the susceptibility of vapor heat-treated (VHT) ‘B74’ mangoes to IDs in three experiment...
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MDPI AG
2024-11-01
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| author | Amit Khanal Muhammad Asad Ullah Priya Joyce Neil White Andrew Macnish Eleanor Hoffman Donald Irving Richard Webb Daryl Joyce |
| author_facet | Amit Khanal Muhammad Asad Ullah Priya Joyce Neil White Andrew Macnish Eleanor Hoffman Donald Irving Richard Webb Daryl Joyce |
| author_sort | Amit Khanal |
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| description | Postharvest internal disorders (IDs) in mango fruit present a significant challenge to the industry, with their underlying causes still unclear. This study investigated the relationship between fruit maturity and the susceptibility of vapor heat-treated (VHT) ‘B74’ mangoes to IDs in three experiments. In the first experiment, fruit were categorized into three maturity groups based on dry matter content (DMC): <15%, 15–17%, and >17%, using a handheld near-infrared device. Half of the fruit in each group underwent VHT, while the remainder were untreated controls. Flesh cavity with white patches (FCWP) was the only disorder observed exclusively in VHT fruit. The incidence and severity of FCWP was significantly higher (<i>p</i> < 0.05) in fruit with <15% DMC, with 12.4% incidence and a severity score of 0.2 on a 0–3 scale (0: healthy and 3: severely affected), compared to more mature fruit. In the second experiment, the fruits were harvested at early and late maturity stages, with average DMC values of 14.5% and 17.4%, respectively. The fruit was subjected to no VHT, VHT, and VHT following a 12 h pre-conditioning period at 37 ± 1 °C. Consistent with the first experiment, FCWP was observed only in VHT fruit, with early-harvested fruit displaying a significantly higher (<i>p</i> < 0.05) FCWP incidence (26.9%) and severity (0.3) compared to late-harvested fruit (8.3% incidence and 0.1 severity). Pre-conditioning significantly reduced FCWP, particularly in early-harvested fruit. In the third experiment, fruit maturity sorted based on density was assessed, followed by VHT and simulated sea freight under controlled (CA) and ambient atmospheres. Fruit density did not effectively differentiate maturity considering DMC as a maturity indicator. Storage conditions significantly reduced (<i>p</i> < 0.05) flesh browning incidence from 71.1% under ambient conditions to 33.3% under CA. This study highlights fruit maturity as a key factor in the susceptibility of ‘B74’ mangoes to postharvest IDs following VHT. Therefore, sorting fruit based on DMC at harvest or at the packing facility prior to VHT serves as a valuable decision support for reducing IDs in VHT fruit. Further research will explore advanced technologies to enable rapid and efficient fruit sorting based on DMC. |
| format | Article |
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| institution | DOAJ |
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| spelling | doaj-art-a4fb9ce56b7b49758fea423f4b586acf2025-08-20T02:53:38ZengMDPI AGHorticulturae2311-75242024-11-011012125710.3390/horticulturae10121257Fruit Sorting Based on Maturity Reduces Internal Disorders in Vapor Heat-Treated ‘B74’ MangoAmit Khanal0Muhammad Asad Ullah1Priya Joyce2Neil White3Andrew Macnish4Eleanor Hoffman5Donald Irving6Richard Webb7Daryl Joyce8School of Agriculture and Food Sustainability, The University of Queensland, Gatton, QLD 4343, AustraliaSchool of Agriculture and Food Sustainability, The University of Queensland, Gatton, QLD 4343, AustraliaIndependent Researcher, Karalee, QLD 4306, AustraliaDepartment of Agriculture and Fisheries, Leslie Research Facility, Toowoomba, QLD 4350, AustraliaDepartment of Agriculture and Fisheries, Maroochy Research Facility, Nambour, QLD 4560, AustraliaSchool of Agriculture and Food Sustainability, The University of Queensland, Gatton, QLD 4343, AustraliaIndependent Researcher, Brisbane, QLD 4052, AustraliaCentre for Microscopy and Microanalysis, The University of Queensland, St. Lucia, QLD 4072, AustraliaSchool of Agriculture and Food Sustainability, The University of Queensland, Gatton, QLD 4343, AustraliaPostharvest internal disorders (IDs) in mango fruit present a significant challenge to the industry, with their underlying causes still unclear. This study investigated the relationship between fruit maturity and the susceptibility of vapor heat-treated (VHT) ‘B74’ mangoes to IDs in three experiments. In the first experiment, fruit were categorized into three maturity groups based on dry matter content (DMC): <15%, 15–17%, and >17%, using a handheld near-infrared device. Half of the fruit in each group underwent VHT, while the remainder were untreated controls. Flesh cavity with white patches (FCWP) was the only disorder observed exclusively in VHT fruit. The incidence and severity of FCWP was significantly higher (<i>p</i> < 0.05) in fruit with <15% DMC, with 12.4% incidence and a severity score of 0.2 on a 0–3 scale (0: healthy and 3: severely affected), compared to more mature fruit. In the second experiment, the fruits were harvested at early and late maturity stages, with average DMC values of 14.5% and 17.4%, respectively. The fruit was subjected to no VHT, VHT, and VHT following a 12 h pre-conditioning period at 37 ± 1 °C. Consistent with the first experiment, FCWP was observed only in VHT fruit, with early-harvested fruit displaying a significantly higher (<i>p</i> < 0.05) FCWP incidence (26.9%) and severity (0.3) compared to late-harvested fruit (8.3% incidence and 0.1 severity). Pre-conditioning significantly reduced FCWP, particularly in early-harvested fruit. In the third experiment, fruit maturity sorted based on density was assessed, followed by VHT and simulated sea freight under controlled (CA) and ambient atmospheres. Fruit density did not effectively differentiate maturity considering DMC as a maturity indicator. Storage conditions significantly reduced (<i>p</i> < 0.05) flesh browning incidence from 71.1% under ambient conditions to 33.3% under CA. This study highlights fruit maturity as a key factor in the susceptibility of ‘B74’ mangoes to postharvest IDs following VHT. Therefore, sorting fruit based on DMC at harvest or at the packing facility prior to VHT serves as a valuable decision support for reducing IDs in VHT fruit. Further research will explore advanced technologies to enable rapid and efficient fruit sorting based on DMC.https://www.mdpi.com/2311-7524/10/12/1257dry matter contentinternal disordersmangovapor heat treatment |
| spellingShingle | Amit Khanal Muhammad Asad Ullah Priya Joyce Neil White Andrew Macnish Eleanor Hoffman Donald Irving Richard Webb Daryl Joyce Fruit Sorting Based on Maturity Reduces Internal Disorders in Vapor Heat-Treated ‘B74’ Mango Horticulturae dry matter content internal disorders mango vapor heat treatment |
| title | Fruit Sorting Based on Maturity Reduces Internal Disorders in Vapor Heat-Treated ‘B74’ Mango |
| title_full | Fruit Sorting Based on Maturity Reduces Internal Disorders in Vapor Heat-Treated ‘B74’ Mango |
| title_fullStr | Fruit Sorting Based on Maturity Reduces Internal Disorders in Vapor Heat-Treated ‘B74’ Mango |
| title_full_unstemmed | Fruit Sorting Based on Maturity Reduces Internal Disorders in Vapor Heat-Treated ‘B74’ Mango |
| title_short | Fruit Sorting Based on Maturity Reduces Internal Disorders in Vapor Heat-Treated ‘B74’ Mango |
| title_sort | fruit sorting based on maturity reduces internal disorders in vapor heat treated b74 mango |
| topic | dry matter content internal disorders mango vapor heat treatment |
| url | https://www.mdpi.com/2311-7524/10/12/1257 |
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