Abstract
'Douradão' peach is a perishable product and when cold stored is subject to chilling injury. The objective of the experiment was to evaluate the effect of modified atmosphere packaging (MAP) and cold storage on quality and storage life of these peaches. Fruits were packed in polypropylene (PP) trays and placed inside low density polyethylene (LDPE) bags (30, 50, 60, 75 μm thickness) with active modified atmosphere (10 kPa CO2 + 1.5kPa O2, balance N2). The control was made with peaches held in nonwrapped PP trays. Fruits were kept at 1 ± 1 °C and 90 ± 5% relative humidity (RH) for 28 days and CO2 and O2 within packages was monitored every two days. After 14, 21 and 28 days, samples were withdrawn from MAP and kept in air at 25 ± 1 °C and 90 ± 5% RH for ripening. On the day of removal from the cold storage and after 4 days, peaches were evaluated for weight loss, decay incidence, flesh firmness, woolliness incidence, soluble solids content (SSC), titratable acidity (TA) and juice content. The results showed that MAP had influence on reducing weight loss and prevented postharvest decay. MAP of 1-2 kPa O2 and 3-6 kPa CO2 at 1 °C (from 50 and 60 μm LDPE films) were effective for keeping good quality of 'Douradão' peaches during 28 days of storage, the ripe fruits showed reduced incidence of woolliness, adequate juiciness and flesh firmness. Packages of 30 and 75 μm LDPE films were ineffective for reducing woolliness during cold storage. MAP fruits showed lower SSC and no relevant effect on TA. Control fruits did not present marketable conditions after 14 days of cold storage.
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Claims 9
Claim · model-written summary
Modified atmosphere packaging reduced weight loss of Douradao peach compared with nonwrapped trays.
- Taxon
- peach
Prunus persicae0 - Material
- Douradãoe0
- Treatment
- MAPe1
- Outcome
- weight losse1
- Direction
- reducinge1
- Comparator
- peaches held in nonwrapped PP trayse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Douradão' peach is a perishable product and when cold stored is subject to chilling injury”
e1“The results showed that MAP had influence on reducing weight loss and prevented postharvest decay”
e2“The control was made with peaches held in nonwrapped PP trays”
Claim · model-written summary
Modified atmosphere packaging prevented postharvest decay of Douradao peach compared with nonwrapped trays.
- Taxon
- peachPrunus persicae0
- Material
- Douradãoe0
- Treatment
- MAPe1
- Outcome
- postharvest decaye1
- Direction
- preventede1
- Comparator
- peaches held in nonwrapped PP trayse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Douradão' peach is a perishable product and when cold stored is subject to chilling injury”
e1“The results showed that MAP had influence on reducing weight loss and prevented postharvest decay”
e2“The control was made with peaches held in nonwrapped PP trays”
Claim · model-written summary
MAP with 1-2 kPa O2 and 3-6 kPa CO2 at 1 °C from 50 and 60 μm LDPE films kept good quality of Douradao peaches for 28 days.
- Taxon
- peachesPrunus persicae3
- Material
- Douradãoe3
- Treatment
- MAP of 1-2 kPa O2 and 3-6 kPa CO2 at 1 °Ce3
- Outcome
- good qualitye3
- Direction
- effectivee3
- Value
- 28 dayse3
- Qualifier
- from 50 and 60 μm LDPE filmse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“MAP of 1-2 kPa O2 and 3-6 kPa CO2 at 1 °C (from 50 and 60 μm LDPE films) were effective for keeping good quality of 'Douradão' peaches during 28 days of storage”
Claim · model-written summary
Packages of 30 and 75 μm LDPE films were ineffective for reducing woolliness of peach during cold storage.
- Taxon
- peachPrunus persicae0
- Treatment
- 30 and 75 μm LDPE filmse4
- Outcome
- woollinesse4
- Direction
- ineffectivee4
- Qualifier
- during cold storagee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Douradão' peach is a perishable product and when cold stored is subject to chilling injury”
e4“Packages of 30 and 75 μm LDPE films were ineffective for reducing woolliness during cold storage”
Claim · model-written summary
Ripe peach fruits showed reduced incidence of woolliness.
- Taxon
- peachPrunus persicae0
- Outcome
- incidence of woollinesse5
- Direction
- reducede5
- Qualifier
- ripe fruitse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Douradão' peach is a perishable product and when cold stored is subject to chilling injury”
e5“the ripe fruits showed reduced incidence of woolliness, adequate juiciness and flesh firmness”
Claim · model-written summary
Ripe peach fruits had adequate juiciness and flesh firmness.
- Taxon
- peachPrunus persicae0
- Outcome
- juiciness and flesh firmnesse5
- Qualifier
- adequatee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Douradão' peach is a perishable product and when cold stored is subject to chilling injury”
e5“the ripe fruits showed reduced incidence of woolliness, adequate juiciness and flesh firmness”
Claim · model-written summary
MAP fruits had lower soluble solids content (SSC) than control peaches.
- Taxon
- peachPrunus persicae0
- Treatment
- MAPe6
- Outcome
- SSCe6
- Direction
- lowere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Douradão' peach is a perishable product and when cold stored is subject to chilling injury”
e6“MAP fruits showed lower SSC and no relevant effect on TA”
Claim · model-written summary
MAP had no relevant effect on titratable acidity (TA) of peach.
- Taxon
- peachPrunus persicae0
- Treatment
- MAPe6
- Outcome
- TAe6
- Direction
- no_changeinferrede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Douradão' peach is a perishable product and when cold stored is subject to chilling injury”
e6“MAP fruits showed lower SSC and no relevant effect on TA”
Claim · model-written summary
Control peach fruits did not present marketable conditions after 14 days of cold storage.
- Taxon
- peachPrunus persicae0
- Outcome
- marketable conditionse7
- Qualifier
- after 14 days of cold storagee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Douradão' peach is a perishable product and when cold stored is subject to chilling injury”
e7“Control fruits did not present marketable conditions after 14 days of cold storage”
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