Abstract
The growing demand for safe and fresh food, coupled with the challenge of significant food loss and waste, has stimulated research on active packaging. In this study, artichoke leaf extract (ALE), obtained from food loss streams, was mixed with carboxymethyl cellulose (CMC) to develop an active coating on polylactic acid (PLA) packaging using a spray-coating approach. Surface modification of PLA with 1 % w / v PLA and 20 wt% and polyethylene glycol improved hydrophilicity, enhancing coating adherence. Substituting ALE for CMC reduced solution viscosity, allowing a uniform coating. The inclusion of ALE conferred antioxidants (40–67 % DPPH scavenging) and antibacterial properties (2.11 and 1.08 Log reduction against E. coli and S. aureus ) to the coating, with controlled release governed by diffusion and swelling in lipophilic media (50 % ethanol) and predominantly swelling-controlled release in hydrophilic media (10 % ethanol and 3 % acetic acid). Analysis of the performance of active packaging in preservation of cut apples and strawberries demonstrated that ALE-coated PLA packaging effectively slowed oxidation, acid degradation, and microbial proliferation in cut apples and strawberries over 8 and 10 days storage, respectively, thereby improving overall freshness. While limited improvements were observed for firmness and browning in apples, coated packaging significantly enhanced phenolic content, antioxidant activity, and microbial stability, with strawberries showing the strongest protective effects. These findings highlight the potential of ALE-based coatings as a sustainable strategy to extend fruit shelf life and reduce food waste through active packaging solutions. • An active coating was developed for PLA packaging using artichoke leaf extract (ALE). • CMC increased ALE solution viscosity and improved coating formation. • Pre-coating PLA with PLA-PEG solution enhanced adhesion of the active coating layer. • The active coating conferred antioxidant and antibacterial activity to PLA packaging. • Shelf-life studies on cut apples and strawberries showed improved freshness.
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Claims 8
Claim · model-written summary
Coating improved packaging hydrophilicity and adherence.
Not reportedTaxon
Verbatim
e0“Surface modification of PLA with 1 % w / v PLA and 20 wt% and polyethylene glycol improved hydrophilicity, enhancing coating adherence”
Claim · model-written summary
Replacing CMC with ALE reduced coating solution viscosity.
Not reportedTaxon
Verbatim
e0“Substituting ALE for CMC reduced solution viscosity, allowing a uniform coating”
Claim · model-written summary
The coating showed 40–67% DPPH scavenging.
Not reportedTaxon
Verbatim
e0“antioxidants (40–67 % DPPH scavenging)”
Claim · model-written summary
The coating reduced E. coli by 2.11 log.
- Interactor
- E. coli
.jpg?width=60)
Escherichia colie0other - Outcome
- reduction against E. colie0
- Value
- 2.11e0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“2.11 and 1.08 Log reduction against E. coli and S. aureus”
Claim · model-written summary
The coating reduced S. aureus by 1.08 log.
Not reportedTaxon
Verbatim
e0“2.11 and 1.08 Log reduction against E. coli and S. aureus”
Claim · model-written summary
ALE-coated packaging slowed oxidation, acid degradation and microbial proliferation in cut apples.
- Taxon
- cut applese0
- Treatment
- ALE-coated PLA packaginge0
- Outcome
- oxidation, acid degradation, and microbial proliferatione0
- Direction
- slowede0
- Qualifier
- 8 and 10 days storagee0
Not reportedComparator
Verbatim
e0“ALE-coated PLA packaging effectively slowed oxidation, acid degradation, and microbial proliferation in cut apples and strawberries over 8 and 10 days storage, respectively”
Claim · model-written summary
ALE-coated packaging slowed oxidation, acid degradation and microbial proliferation in strawberries.
- Taxon
- strawberries
_single2.jpg?width=60)
Fragaria ×ananassae0 - Treatment
- ALE-coated PLA packaginge0
- Outcome
- oxidation, acid degradation, and microbial proliferatione0
- Direction
- slowede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“ALE-coated PLA packaging effectively slowed oxidation, acid degradation, and microbial proliferation in cut apples and strawberries over 8 and 10 days storage, respectively”
Claim · model-written summary
Packaging significantly enhanced fruit phenolic content, antioxidant activity and microbial stability.
- Taxon
- cut apples and strawberriese1
- Treatment
- coated packaginge0
- Outcome
- phenolic content, antioxidant activity, and microbial stabilitye0
- Direction
- enhancede0
Not reportedComparator
Verbatim
e0“coated packaging significantly enhanced phenolic content, antioxidant activity, and microbial stability, with strawberries showing the strongest protective effects”
e1“preservation of cut apples and strawberries”
The same questions in other papers
storage · quality: phytochemicals · Malus domestica (apple)Positive and negative results
19 papers in the same direction as this paper · 19 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- negative
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See all 41 papers →storage · quality: phytochemicals · Fragaria x ananassa (strawberry)Positive and negative results
38 papers in the same direction as this paper · 9 in the opposite direction
- no effect
- negative
- negative
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See all 48 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.