Abstract
Abstract Biopolymer films are increasingly used in sustainable fruit packaging; however, their practical application is often limited by poor gas and water vapor barrier properties. Enhancing these barrier functions is critical to minimizing moisture loss, oxidative spoilage, and quality degradation in packaged fruits. This study investigates the effects of incorporating cellulose nanocrystals (CNCs) and Coleus aromaticus essential oil (CAEO) on the gas and water vapor permeability of polylactic acid (PLA)/chitosan (CHI) composite films. Films containing higher CNC concentrations (3–4 wt%) exhibited increased porosity and surface defects, which significantly elevated oxygen, carbon dioxide, and water vapor transmission rates (WVTR). In contrast, the addition of CAEO reduced gas permeability and WVTR, likely due to its hydrophobic nature and matrix-densifying effects. The films were further evaluated for their effectiveness in preserving mango fruit quality during storage. While soluble solid content (SSC) showed no significant differences across treatments ( P > 0.05), fruit treated with 1.2% CAEO films exhibited significantly lower weight loss ( P < 0.05) compared to untreated controls. The combination of CNCs and CAEO enhanced the functional performance of PLA/CHI films, indicating their potential as biodegradable active packaging for postharvest fruit preservation, though validation under realistic storage and export conditions is still required.
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Claims 5
Claim · model-written summary
Films with higher CNC concentrations (3-4 wt%) showed significantly elevated oxygen, carbon dioxide and water vapor transmission rates.
- Treatment
- higher CNC concentrations (3–4 wt%)e1
- Outcome
- oxygen, carbon dioxide, and water vapor transmission ratese1
- Direction
- significantly elevatede1
Not reportedTaxonComparatorValue
Verbatim
e1“Films containing higher CNC concentrations (3–4 wt%) exhibited increased porosity and surface defects, which significantly elevated oxygen, carbon dioxide, and water vapor transmission rates (WVTR)”
Claim · model-written summary
Addition of CAEO reduced gas permeability and WVTR of the PLA/CHI films.
Not reportedTaxonComparatorValue
Verbatim
e2“the addition of CAEO reduced gas permeability and WVTR”
Claim · model-written summary
Soluble solid content of mango showed no significant differences across film treatments.
- Taxon
- mango
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Mangifera indicae6 - Treatment
- treatmentse3
- Outcome
- soluble solid content (SSC)e3
- Direction
- no significant differencese3
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e6“preserving mango fruit quality during storage”
e3“While soluble solid content (SSC) showed no significant differences across treatments ( P > 0.05)”
Claim · model-written summary
Mango fruit treated with 1.2% CAEO films had significantly lower weight loss than untreated controls during storage.
- Taxon
- mangoMangifera indicae6
- Treatment
- 1.2% CAEO filmse4
- Outcome
- weight losse4
- Direction
- significantly lowere4
- Comparator
- untreated controlse4
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“preserving mango fruit quality during storage”
e4“fruit treated with 1.2% CAEO films exhibited significantly lower weight loss ( P < 0.05) compared to untreated controls”
Claim · model-written summary
The combination of CNCs and CAEO enhanced the functional performance of PLA/CHI films relative to PLA/CHI films.
Not reportedTaxonValue
Verbatim
e5“The combination of CNCs and CAEO enhanced the functional performance of PLA/CHI films”
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See all 33 papers →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.