Abstract
A nanocomposite packaging film (NPF) prepared by blending polyethylene (PE) with nanoclay (closite 20A) was used. The effects of NPF on the quality parameters of mature peach fruit were investigated during 42 d of storage at 2 °C. The results showed that barrier properties of active film properly suited fruit respiration and significantly inhibited bacterial growth. The weight loss, softening and internal browning of peach fruit were also significantly inhibited by 42%, 28%, and 15%, respectively, which indicated that NPF could delay peach ripening. In addition, pH, total soluble solid, and titratable acidity of fruit in the neat PE film and the unpacked fruit changed more significantly compared with the NPF-packed fruit. Additionally, peach in NPF exhibited lower polyphenol oxidase and higher peroxidase and catalase activities than the others. These results shown that NPF may be an applicable method to control fruit loss and prolong quality of peach during storage. Practical applications: In this study a clay-nanocomposite film with modified barrier and unti-microbial properties on storage of peach fruit was investigated. The barrier properties of the nanocomposite film improved compared to the neat LDPE film so that causes to decrease the respiration rate of the product. Also it is capable to increase the shelf life and storage life of the product. In addition this nanocomposite film can be used as an active packaging with anti-microbial property. Furthermore, the melt blending extrusion for developing of the nanocomposite film can be used as an industrial and cost effective method for reduction of the product losses in postharvest period.
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Claims 10
Claim · model-written summary
The active film barrier suited fruit respiration.
- Taxon
- peach
Prunus persicat0 - Outcome
- fruit respiratione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach fruit ( Prunus persica Cv. Alberta)”
e0“barrier properties of active film properly suited fruit respiration”
Claim · model-written summary
The film significantly inhibited bacterial growth.
- Taxon
- peachPrunus persicat0
- Treatment
- nanocomposite packaging filme1
- Interactor
- bacteriale0pathogen
- Outcome
- bacterial growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach fruit ( Prunus persica Cv. Alberta)”
e0“barrier properties of active film properly suited fruit respiration and significantly inhibited bacterial growth”
e1“A nanocomposite packaging film (NPF)”
Claim · model-written summary
NPF inhibited peach fruit weight loss by 42%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach fruit ( Prunus persica Cv. Alberta)”
e0“The weight loss, softening and internal browning of peach fruit were also significantly inhibited by 42%, 28%, and 15%, respectively”
e1“A nanocomposite packaging film (NPF)”
Claim · model-written summary
NPF inhibited peach fruit softening by 28%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach fruit ( Prunus persica Cv. Alberta)”
e0“The weight loss, softening and internal browning of peach fruit were also significantly inhibited by 42%, 28%, and 15%, respectively”
e1“A nanocomposite packaging film (NPF)”
Claim · model-written summary
NPF inhibited peach internal browning by 15%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach fruit ( Prunus persica Cv. Alberta)”
e0“The weight loss, softening and internal browning of peach fruit were also significantly inhibited by 42%, 28%, and 15%, respectively”
e1“A nanocomposite packaging film (NPF)”
Claim · model-written summary
Peach pH, soluble solids, and acidity changed more in neat PE and unpacked fruit than in NPF-packed fruit.
- Taxon
- peachPrunus persicat0
- Treatment
- NPF-packede0
- Outcome
- pH, total soluble solid, and titratable aciditye0
- Direction
- changed more significantlye0
- Comparator
- neat PE film and the unpacked fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pH, total soluble solid, and titratable acidity of fruit in the neat PE film and the unpacked fruit changed more significantly compared with the NPF-packed fruit”
t0“peach fruit ( Prunus persica Cv. Alberta)”
Claim · model-written summary
NPF peaches had lower polyphenol oxidase activity than others.
- Taxon
- peachPrunus persicae0
- Treatment
- NPFe0
- Gene
- polyphenol oxidasee0
- Outcome
- polyphenol oxidasee0
- Direction
- lowere0
- Comparator
- the otherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peach in NPF exhibited lower polyphenol oxidase and higher peroxidase and catalase activities than the others”
Claim · model-written summary
NPF peaches had higher peroxidase and catalase activities than others.
- Taxon
- peachPrunus persicae0
- Treatment
- NPFe0
- Outcome
- peroxidase and catalase activitiese0
- Direction
- highere0
- Comparator
- the otherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peach in NPF exhibited lower polyphenol oxidase and higher peroxidase and catalase activities than the others”
Claim · model-written summary
The film barrier improved compared with neat LDPE film.
- Taxon
- peachPrunus persicat0
- Outcome
- barrier propertiese0
- Direction
- improvede0
- Comparator
- neat LDPE filme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach fruit ( Prunus persica Cv. Alberta)”
e0“The barrier properties of the nanocomposite film improved compared to the neat LDPE film”
Claim · model-written summary
The authors proposed NPF to control fruit loss and prolong peach quality in storage.
- Taxon
- peachPrunus persicae0
- Outcome
- control fruit loss and prolong quality of peach during storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPF may be an applicable method to control fruit loss and prolong quality of peach during storage”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.