Abstract
Fruits are susceptible to a diverse range of postharvest rots, which can reduce quality if preventive measures are not taken in time. In this study, samples of orange cv. Maltaise and apple cvs. Golden Delicious and Richared were sorted without infection or injury, treated or not with sodium metabisulfite (SMB), and then placed in cold storage for 20, 42, or 59–61 days, followed by a shelf life of 6 or 15 days. Physicochemical characteristics, degree of fruit infection, and weight loss were analyzed for each storage period. Our results indicated that adequate postharvest storage depends on the type of fruit, duration of cold storage, and shelf life. The heat map grouped ‘Richared’ apples close to its fresh state, without developing rot or perceptible weight loss for 60 days at low temperature (6°C) and 15 days of shelf life. These red apples performed better during storage than ‘Golden’ apples, especially in terms of storability and total flavonoids. Apples of ‘Golden’ showed better storage stability than ‘Maltaise,’ which could be stored properly for up to 20 days at 6°C, followed by a 15-day shelf life, regardless of treatment with sodium metabisulfite. The longer the oranges were stored, the greater the risk of infection and the greater the physicochemical properties; in this case, flavonoids decreased. The chemical criteria (TSS and pH) of apples and oranges were not affected by soaking in SMB, which was similar to that of untreated fruit. However, treating such fruits with SMB is regarded as unlikely because of its low effectiveness in preventing fruit decay during long-term storage. Cluster analysis showed that total polyphenols were linked to poor storability, whereas flavonoids, hardness, and TSS were associated with better storability. This suggests that flavonoids may be more reliable indicators of storage suitability than total polyphenols.
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Claims 10
Claim · model-written summary
Richared apples performed better than Golden apples during storage in storability and total flavonoids.
- Taxon
- apples
Malus domesticae2 - Treatment
- during storagee2
- Outcome
- storability and total flavonoidse2
- Direction
- performed bettere2
- Comparator
- Goldene2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chemical criteria (TSS and pH) of apples and oranges were not affected by soaking in SMB”
e2“These red apples performed better during storage than ‘Golden’ apples, especially in terms of storability and total flavonoids”
Claim · model-written summary
Golden apples showed better storage stability than Maltaise apples when stored for up to 20 days at 6°C.
- Taxon
- ApplesMalus domesticae3
- Material
- Goldene3
- Treatment
- 20 days at 6°Ce3
- Outcome
- storage stabilitye3
- Direction
- bettere3
- Comparator
- Maltaisee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chemical criteria (TSS and pH) of apples and oranges were not affected by soaking in SMB”
e3“Apples of ‘Golden’ showed better storage stability than ‘Maltaise,’ which could be stored properly for up to 20 days at 6°C”
Claim · model-written summary
Soaking in sodium metabisulfite did not affect TSS and pH of apples and oranges compared with untreated fruit.
Verbatim
e0“The chemical criteria (TSS and pH) of apples and oranges were not affected by soaking in SMB”
e4“which was similar to that of untreated fruit”
Claim · model-written summary
Total polyphenols were linked to poor storability of apples and oranges.
Not reportedDirection
Verbatim
e0“The chemical criteria (TSS and pH) of apples and oranges were not affected by soaking in SMB”
e5“Cluster analysis showed that total polyphenols were linked to poor storability”
Claim · model-written summary
Flavonoids, hardness and TSS were associated with better storability.
Verbatim
e0“The chemical criteria (TSS and pH) of apples and oranges were not affected by soaking in SMB”
e6“whereas flavonoids, hardness, and TSS were associated with better storability”
Claim · model-written summary
Flavonoids may be more reliable indicators of storage suitability than total polyphenols.
Verbatim
e0“The chemical criteria (TSS and pH) of apples and oranges were not affected by soaking in SMB”
e7“flavonoids may be more reliable indicators of storage suitability than total polyphenols”
Claim · model-written summary
The authors recommend against treating such fruits with sodium metabisulfite because of its low effectiveness.
Verbatim
e0“treating such fruits with SMB is regarded as unlikely because of its low effectiveness”
Claim · model-written summary
The longer oranges were stored, the greater the risk of infection.
Verbatim
e0“The longer the oranges were stored, the greater the risk of infection”
Claim · model-written summary
Flavonoids in oranges decreased with longer storage.
Verbatim
e0“The longer the oranges were stored, the greater the risk of infection”
e1“in this case, flavonoids decreased”
Claim · model-written summary
Richared apples stored at 6°C for 60 days showed no rot and no perceptible weight loss.
- Taxon
- applesMalus domesticae1
- Material
- Richarede1
- Outcome
- perceptible weight losse1
- Qualifier
- for 60 days at low temperature (6°C)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The heat map grouped ‘Richared’ apples close to its fresh state, without developing rot or perceptible weight loss for 60 days at low temperature (6°C) and 15 days of shelf life”
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