Abstract
In recent times, the application of protein-based bio-composite edible films in postharvest preservation of food and agricultural products is attracting increased attention due to their biodegradability, eco-friendliness and sustainability. In this study, an avocado pear peel polyphenolic extract enriched keratin-starch composite film was fabricated, characterized and evaluated for antimicrobial activity against fungal infected tomato fruits after 6 days of storage at room (25 ± 2 °C) temperature. The SEM/EDX and FTIR results revealed the successful film formation with high degree of compatibility and homogeneity. Following a 6-day post-coating loss in weight of the coated tomato fruits decreased significantly (p < 0.05) with increasing extract concentration while titratable acidity showed a significant (p < 0.05) increase with increasing extract load. Ascorbic acid and lycopene contents were significantly (p < 0.05) higher in the avocado pear peel polyphenolic extract-loaded films. No significant effect was observed in catechol oxidase activity of the tomato extract across the different treatment groups. In addition, fungal growth inhibition showed a dose dependent increase consistent with avocado pear peel polyphenolic load in coated tomato fruits compared to control. Results obtained in this study showed that polyphenolic activated keratin-starch coating was able to reduce spoilage-induce weight loss as well as conserve the overall quality (including titratable acid levels, lycopene and ascorbic acid contents) of fungal-infected tomato fruit and reduce microbial growth. Therefore polyphenolic activated keratin-starch coating could serve as a sustainable and ecofriendly postharvest preservation method to prolong the shelf life of tomato fruits.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Weight loss of coated tomato fruits after 6 days decreased significantly with increasing extract concentration.
- Taxon
- tomato fruits
Solanum lycopersicumt0 - Treatment
- increasing extract concentratione0
- Outcome
- loss in weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruits”
e0“loss in weight of the coated tomato fruits decreased significantly (p < 0.05) with increasing extract concentration”
Claim · model-written summary
Titratable acidity of coated tomato fruits increased significantly with increasing extract load.
- Taxon
- tomato fruitsSolanum lycopersicumt0
- Treatment
- increasing extract loade0
- Outcome
- titratable aciditye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruits”
e0“titratable acidity showed a significant (p < 0.05) increase with increasing extract load”
Claim · model-written summary
Ascorbic acid and lycopene contents were significantly higher in tomato fruits with extract-loaded films.
- Taxon
- tomato fruitsSolanum lycopersicumt0
- Treatment
- avocado pear peel polyphenolic extract-loaded filmse0
- Outcome
- Ascorbic acid and lycopene contentse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruits”
e0“Ascorbic acid and lycopene contents were significantly (p < 0.05) higher in the avocado pear peel polyphenolic extract-loaded films”
Claim · model-written summary
No significant effect of the treatment groups was observed on catechol oxidase activity of the tomato extract.
- Taxon
- tomato fruitsSolanum lycopersicumt0
- Treatment
- different treatment groupse0
- Outcome
- catechol oxidase activitye0
- Direction
- No significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruits”
e0“No significant effect was observed in catechol oxidase activity of the tomato extract across the different treatment groups”
Claim · model-written summary
Fungal growth inhibition on coated tomato fruits showed a dose-dependent increase with polyphenolic load compared with control.
- Taxon
- tomato fruitsSolanum lycopersicumt0
- Treatment
- avocado pear peel polyphenolic loade0
- Interactor
- fungale0pathogen
- Outcome
- fungal growth inhibitione0
- Direction
- increasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruits”
e0“fungal growth inhibition showed a dose dependent increase consistent with avocado pear peel polyphenolic load in coated tomato fruits compared to control”
Claim · model-written summary
The authors conclude the polyphenolic activated keratin-starch coating could serve as a sustainable postharvest preservation method to prolong tomato shelf life.
- Taxon
- tomato fruitsSolanum lycopersicume0
- Outcome
- prolong the shelf lifee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“polyphenolic activated keratin-starch coating could serve as a sustainable and ecofriendly postharvest preservation method to prolong the shelf life of tomato fruits”
The same questions in other papers
botanical · quality: sugar starch · Solanum lycopersicum (tomato)Positive and negative results
19 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
17 papers more in this group
See all 21 papers →botanical · quality: phytochemicals · Solanum lycopersicum (tomato)Positive and negative results
39 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
39 papers more in this group
See all 43 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.