Abstract
The aim of this work was to assess the natural microbiota of packed fresh-cut apples during refrigerated storage. Two different films were tested for the package, a biodegradable (PLA) film and a conventional and commercial one (OPP). Two antioxidant additives were applied, a natural olive pomace extract and the commercial ascorbic acid used by the industries. The results revealed lower bacteria counts in samples with olive pomace extract and PLA films than in those with ascorbic acid and OPP films after 5 and 12 days of storage. These findings suggest that the use of such natural extracts as additives in fruits could delay the growth of mesophilic bacteria. The characterization and identification of the bacterial isolates from fresh-cut apple samples showed that the most prevalent species were Citrobacter freundii, Staphylococcus warneri, Pseudomonas oryzihabitans, Alcalinogenes faecalis, Corynebacterium jeikeium, Micrococcus spp., Pantoea aglomerans and Bacillus spp. Furthermore, an increase in the microbial diversity during the storage time at refrigerated temperatures was observed, except for the sample treated with olive pomace extract and packaged in OPP film. The highest microbial diversity was found for samples with ascorbic acid as an additive. This could indicate a negative effect of ascorbic acid on the microbial inhibition of apple slices. The natural olive pomace extract demonstrated potential as an antimicrobial additive for fresh-cut apples.
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Claims 14
Claim · model-written summary
Olive pomace extract and PLA film had lower bacterial counts than ascorbic acid and OPP film after 5 and 12 days.
- Taxon
- Apples
Malus domesticat0 - Treatment
- olive pomace extract and PLA filmse0
- Outcome
- bacteria countse0
- Direction
- lowere0
- Qualifier
- after 5 and 12 days of storagee0
- Comparator
- ascorbic acid and OPP filmse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower bacteria counts in samples with olive pomace extract and PLA films than in those with ascorbic acid and OPP films after 5 and 12 days of storage.”
t0“Apples”
Claim · model-written summary
Authors suggest natural fruit additives could delay mesophilic bacterial growth.
- Taxon
- ApplesMalus domesticat0
- Treatment
- natural extractse0
- Interactor
- mesophilic bacteriae0other
- Outcome
- growth of mesophilic bacteriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of such natural extracts as additives in fruits could delay the growth of mesophilic bacteria.”
t0“Apples”
Claim · model-written summary
Citrobacter freundii was among the most prevalent species.
- Taxon
- ApplesMalus domesticat0
- Interactor
- Citrobacter freundii
Citrobacter freundiie0other - Outcome
- most prevalent speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most prevalent species were Citrobacter freundii, Staphylococcus warneri, Pseudomonas oryzihabitans, Alcalinogenes faecalis, Corynebacterium jeikeium, Micrococcus spp., Pantoea aglomerans and Bacillus spp.”
t0“Apples”
Claim · model-written summary
Staphylococcus warneri was among the most prevalent species.
- Taxon
- ApplesMalus domesticat0
- Interactor
- Staphylococcus warneriStaphylococcus warnerie0other
- Outcome
- most prevalent speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most prevalent species were Citrobacter freundii, Staphylococcus warneri, Pseudomonas oryzihabitans, Alcalinogenes faecalis, Corynebacterium jeikeium, Micrococcus spp., Pantoea aglomerans and Bacillus spp.”
t0“Apples”
Claim · model-written summary
Pseudomonas oryzihabitans was among the most prevalent species.
- Taxon
- ApplesMalus domesticat0
- Interactor
- Pseudomonas oryzihabitansPseudomonas oryzihabitanse0other
- Outcome
- most prevalent speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most prevalent species were Citrobacter freundii, Staphylococcus warneri, Pseudomonas oryzihabitans, Alcalinogenes faecalis, Corynebacterium jeikeium, Micrococcus spp., Pantoea aglomerans and Bacillus spp.”
t0“Apples”
Claim · model-written summary
Alcalinogenes faecalis was among the most prevalent species.
- Taxon
- ApplesMalus domesticat0
- Interactor
- Alcalinogenes faecalise0other
- Outcome
- most prevalent speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most prevalent species were Citrobacter freundii, Staphylococcus warneri, Pseudomonas oryzihabitans, Alcalinogenes faecalis, Corynebacterium jeikeium, Micrococcus spp., Pantoea aglomerans and Bacillus spp.”
t0“Apples”
Claim · model-written summary
Corynebacterium jeikeium was among the most prevalent species.
- Taxon
- ApplesMalus domesticat0
- Interactor
- Corynebacterium jeikeiumCorynebacterium jeikeiume0other
- Outcome
- most prevalent speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most prevalent species were Citrobacter freundii, Staphylococcus warneri, Pseudomonas oryzihabitans, Alcalinogenes faecalis, Corynebacterium jeikeium, Micrococcus spp., Pantoea aglomerans and Bacillus spp.”
t0“Apples”
Claim · model-written summary
Micrococcus spp. was among the most prevalent species.
- Taxon
- ApplesMalus domesticat0
- Interactor
- Micrococcus spp.
Micrococcuse0other - Outcome
- most prevalent speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most prevalent species were Citrobacter freundii, Staphylococcus warneri, Pseudomonas oryzihabitans, Alcalinogenes faecalis, Corynebacterium jeikeium, Micrococcus spp., Pantoea aglomerans and Bacillus spp.”
t0“Apples”
Claim · model-written summary
Pantoea aglomerans was among the most prevalent species.
- Taxon
- ApplesMalus domesticat0
- Interactor
- Pantoea aglomeranse0other
- Outcome
- most prevalent speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most prevalent species were Citrobacter freundii, Staphylococcus warneri, Pseudomonas oryzihabitans, Alcalinogenes faecalis, Corynebacterium jeikeium, Micrococcus spp., Pantoea aglomerans and Bacillus spp.”
t0“Apples”
Claim · model-written summary
Bacillus spp. was among the most prevalent species.
- Taxon
- ApplesMalus domesticat0
- Interactor
- Bacillus spp.e0other
- Outcome
- most prevalent speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most prevalent species were Citrobacter freundii, Staphylococcus warneri, Pseudomonas oryzihabitans, Alcalinogenes faecalis, Corynebacterium jeikeium, Micrococcus spp., Pantoea aglomerans and Bacillus spp.”
t0“Apples”
Claim · model-written summary
Microbial diversity increased during refrigerated storage except with olive pomace extract in OPP film.
- Taxon
- ApplesMalus domesticat0
- Outcome
- microbial diversitye0
- Direction
- increasee0
- Qualifier
- except for the sample treated with olive pomace extract and packaged in OPP filme0
- Setting
- refrigerated temperaturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase in the microbial diversity during the storage time at refrigerated temperatures was observed, except for the sample treated with olive pomace extract and packaged in OPP film.”
t0“Apples”
Claim · model-written summary
Ascorbic acid samples had the highest microbial diversity.
- Taxon
- ApplesMalus domesticat0
- Treatment
- ascorbic acide0
- Outcome
- microbial diversitye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest microbial diversity was found for samples with ascorbic acid as an additive.”
t0“Apples”
Claim · model-written summary
Authors infer ascorbic acid might impair microbial inhibition on apple slices.
- Taxon
- ApplesMalus domesticat0
- Treatment
- ascorbic acide0
- Outcome
- microbial inhibition of apple slicese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This could indicate a negative effect of ascorbic acid on the microbial inhibition of apple slices.”
t0“Apples”
Claim · model-written summary
Olive pomace extract showed potential as an antimicrobial additive for fresh cut apples.
- Taxon
- applesMalus domesticae0
- Treatment
- natural olive pomace extracte0
- Outcome
- potential as an antimicrobial additivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The natural olive pomace extract demonstrated potential as an antimicrobial additive for fresh-cut apples.”
The same questions in other papers
ascorbic acid · soil: biology · Malus domestica (apple)Positive and negative results
2 in the opposite direction
- positive
- positive
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.