Abstract
Edible coatings have potential to reduce postharvest losses of fruit such as tomato. In this study, the effects of nanolaminate coatings incorporated with extracts of Flourensia cernua, an endemic plant of the arid and semiarid regions of Mexico, has been investigated. Ethanol extracts of F. cernua (FcE) were prepared and incorporated into polyelectrolyte solutions of alginate and chitosan. The nanolaminates were characterized by determining the zeta potential, contact angle and water vapor and oxygen permeabilities. Shelf-life analyses (20 C for 15 d) were carried out with uncoated fruit (UCF), nanolaminate coating (NL) and nanolaminate coating with FcE (NL + FcE). Physicochemical analyses, gas exchange rates of O 2 and CO 2 and ethylene production, as well as microbiological analyses of treated fruit were measured. Zeta potential and contact angle measurements confirmed the successful assembly of successive nanolayers of alginate and chitosan, as well as those with F. cernua. The nanolaminate coatings resulted in decreased permeabilities to water and O 2 . The best treatment of NL + FcE, extended the shelf-life of fruit by reducing weight loss and microbial growth, reducing gas exchange and ethylene production, and maintaining firmness and color. The NL + FcE treatment are an alternative to extend the shelf-life of tomato fruit.
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Claims 7
Claim · model-written summary
Layer measurements confirmed nanolayer assembly.
- Taxon
- tomato (Solanum lycopersicum L.)
Solanum lycopersicumt0 - Outcome
- successful assembly of successive nanolayers of alginate and chitosane0
- Comparator
- those with F. cernuae0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zeta potential and contact angle measurements confirmed the successful assembly of successive nanolayers of alginate and chitosan, as well as those with F. cernua”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
Nanolaminate coatings reduced water and oxygen permeability.
Not reportedTaxon
Verbatim
e0“The nanolaminate coatings resulted in decreased permeabilities to water and O 2”
Claim · model-written summary
The extract coating reduced tomato fruit weight loss and microbial growth.
- Taxon
- tomato (Solanum lycopersicum L.)Solanum lycopersicumt0
- Treatment
- NL + FcEe0
- Outcome
- weight loss and microbial growthe0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best treatment of NL + FcE, extended the shelf-life of fruit by reducing weight loss and microbial growth, reducing gas exchange and ethylene production, and maintaining firmness and color”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
The extract coating reduced gas exchange and ethylene production.
- Taxon
- tomato (Solanum lycopersicum L.)Solanum lycopersicumt0
- Treatment
- NL + FcEe0
- Outcome
- gas exchange and ethylene productione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best treatment of NL + FcE, extended the shelf-life of fruit by reducing weight loss and microbial growth, reducing gas exchange and ethylene production, and maintaining firmness and color”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
The extract coating maintained tomato fruit firmness and color.
- Taxon
- tomato (Solanum lycopersicum L.)Solanum lycopersicumt0
- Treatment
- NL + FcEe0
- Outcome
- firmness and colore0
- Direction
- maintaininge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best treatment of NL + FcE, extended the shelf-life of fruit by reducing weight loss and microbial growth, reducing gas exchange and ethylene production, and maintaining firmness and color”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
The extract coating extended fruit shelf life.
- Taxon
- tomato (Solanum lycopersicum L.)Solanum lycopersicumt0
- Treatment
- NL + FcEe0
- Outcome
- shelf-life of fruite0
- Direction
- extendede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best treatment of NL + FcE, extended the shelf-life of fruit”
t0“tomato (Solanum lycopersicum L.)”
Claim · model-written summary
The authors recommend the extract coating as an option to extend tomato shelf life.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- alternative to extend the shelf-life of tomato fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NL + FcE treatment are an alternative to extend the shelf-life of tomato fruit”
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See all 5 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.