Abstract
Enzymatic browning could negatively affect the sensory and nutritional properties of eggplants post-harvest. Polyphenols, polyphenol oxidase (PPO), and reactive oxygen species (ROS) are three material conditions involved in enzymatic browning. This paper seeks to evaluate the effect of fertilization techniques and grafting on the activity of PPO and colorimetric parameters in cultivated eggplants. Fertilization alone significantly increased the PPO activity in all eggplant fleshes (p ≤ 0.05), whereas the grafting technique combined with fertilization decreased the PPO activity in most of the samples significantly (p ≤ 0.05). Moreover, there was a significant positive correlation between the PPO activity and the a* values of the eggplants. The a* values in grafted eggplants were significantly different from each other (p ≤ 0.05), showing that grafting the fertilized eggplants could be effective in controlling the enzymatic browning. The eggplant slices exposed to air for 60 min at room temperature showed a significant increase (p ≤ 0.05) in PPO activity, browning index (BI), total color difference (ΔE), and a*, b*, and c* values. Thus, it is necessary to minimize the exposure time of the slices to air at room temperature, even if combining fertilization techniques with grafting could delay the enzymatic browning in fresh-cut eggplants.
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Claims 7
Claim · model-written summary
Fertilization significantly increased PPO activity in all eggplant flesh samples.
- Taxon
- eggplant
Solanum melongenae0 - Organ / stage
- fleshese0
- Treatment
- Fertilization alonee0
- Outcome
- PPO activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization alone significantly increased the PPO activity in all eggplant fleshes (p ≤ 0.05)”
Claim · model-written summary
Grafting combined with fertilization significantly decreased PPO activity in most eggplant samples.
- Taxon
- EggplantsSolanum melongenat0
- Treatment
- grafting technique combined with fertilizatione0
- Outcome
- PPO activitye0
- Direction
- decreasede0
- Qualifier
- most of the samplese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the grafting technique combined with fertilization decreased the PPO activity in most of the samples significantly (p ≤ 0.05)”
t0“Eggplants (Solanum melongena L.)”
Claim · model-written summary
PPO activity and eggplant a* values had a significant positive correlation.
- Taxon
- eggplantsSolanum melongenae0
- Gene
- PPOe0
- Outcome
- PPO activity and the a* valuese0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant positive correlation between the PPO activity and the a* values of the eggplants”
Claim · model-written summary
The a* values differed significantly among grafted eggplants.
- Taxon
- eggplantsSolanum melongenae0
- Treatment
- graftede0
- Outcome
- a* valuese0
- Direction
- differente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The a* values in grafted eggplants were significantly different from each other (p ≤ 0.05)”
Claim · model-written summary
Air exposure for 60 min significantly increased PPO activity, browning index and total color difference in eggplant slices.
- Taxon
- eggplantSolanum melongenae0
- Organ / stage
- slicese0
- Treatment
- exposed to air for 60 min at room temperaturee0
- Outcome
- PPO activity, browning index (BI), total color difference (ΔE)e0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The eggplant slices exposed to air for 60 min at room temperature showed a significant increase (p ≤ 0.05) in PPO activity, browning index (BI), total color difference (ΔE), and a*, b*, and c* values.”
Claim · model-written summary
Air exposure for 60 min significantly increased a*, b* and c* values in eggplant slices.
- Taxon
- eggplantSolanum melongenae0
- Organ / stage
- slicese0
- Treatment
- exposed to air for 60 min at room temperaturee0
- Outcome
- a*, b*, and c* valuese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The eggplant slices exposed to air for 60 min at room temperature showed a significant increase (p ≤ 0.05) in PPO activity, browning index (BI), total color difference (ΔE), and a*, b*, and c* values.”
Claim · model-written summary
The authors recommend minimizing room-temperature air exposure of eggplant slices.
- Taxon
- eggplantSolanum melongenae1
- Outcome
- minimize the exposure time of the slices to air at room temperaturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is necessary to minimize the exposure time of the slices to air at room temperature”
e1“eggplant slices”
The same questions in other papers
fertilization · physiology: antioxidant enzymes · Solanum melongena (eggplant)Results agree
1 paper in the same direction as this paper
- positive
grafting · physiology: antioxidant enzymes · Solanum melongena (eggplant)Results agree
12 papers in the same direction as this paper
- positive
- positive
- positive
9 papers more in this group
See all 13 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.