Abstract
Mechanical damage resulting from excessive impact force during handling and other postharvest operations from harvesting to consumption is a critical quality problem in fresh produce marketing. The study investigates the impact of bruise damage, storage temperature, and storage period on the physiological responses of Omani pomegranate fruit cultivar ‘Helow’. Fruits were subjected to low (45°; 1.18 J) and high (65°; 2.29 J) impact levels using a pendulum test by hitting the fruit on the cheek side. Bruised and non-bruised fruit were stored at 5 and 22 °C for 28 days. Bruise measurements, water loss per unit mass, water loss per surface area, firmness, fruit size measurements, geometric mean diameter, surface area, fruit volume, color parameters, respiration rate, and ethylene production rate were evaluated. Bruise area, bruise volume, and bruise susceptibility of damaged pomegranate fruit were increased as impact level, storage duration, and storage temperature increased. Pomegranates damaged at a high impact level and conditioned at 22 °C showed 20.39% weight loss on the last day of storage compared to the control and low-impact-bruised fruit. Firmness and geometric mean diameter were significantly (p < 0.05) reduced by bruising at a high impact level. Impact bruising level and storage temperature decreased lightness, yellowness, browning index, and increased redness over time. Furthermore, the respiration rate was five times higher in the non-bruised and low- and high-impact-injured fruit stored at 22 °C than that stored at 5 °C. The ethylene production rate recorded its highest value on day 21 in high-level-impact-bruised pomegranate fruit. The bruise susceptibility was strongly correlated with the majority of the studied parameters. This study can confirm that bruising can affect not only the visual quality characteristics but also the physiological attributes of pomegranate fruit; therefore, much care is required to preserve fresh produce and avoid any mechanical damage and losses during postharvest handling.
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Claims 12
Claim · model-written summary
Bruise area rose with impact level, storage duration and temperature.
- Taxon
- pomegranate
Punica granatume0 - Treatment
- impact level, storage duration, and storage temperaturee0
- Outcome
- Bruise areae0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bruise area, bruise volume, and bruise susceptibility of damaged pomegranate fruit were increased as impact level, storage duration, and storage temperature increased”
Claim · model-written summary
Bruise volume rose with impact level, storage duration and temperature.
- Taxon
- pomegranatePunica granatume0
- Treatment
- impact level, storage duration, and storage temperaturee0
- Outcome
- bruise volumee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bruise area, bruise volume, and bruise susceptibility of damaged pomegranate fruit were increased as impact level, storage duration, and storage temperature increased”
Claim · model-written summary
Bruise susceptibility rose with impact level, storage duration and temperature.
- Taxon
- pomegranatePunica granatume0
- Treatment
- impact level, storage duration, and storage temperaturee0
- Outcome
- bruise susceptibilitye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bruise area, bruise volume, and bruise susceptibility of damaged pomegranate fruit were increased as impact level, storage duration, and storage temperature increased”
Claim · model-written summary
High-impact fruit at 22 °C lost 20.39% weight by the last storage day compared with controls and low-impact fruit.
- Taxon
- PomegranatesPunica granatume0
- Treatment
- high impact level and conditioned at 22 °Ce0
- Outcome
- weight losse0
- Direction
- losse0
- Value
- 20.39%e0
- Comparator
- the control and low-impact-bruised fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pomegranates damaged at a high impact level and conditioned at 22 °C showed 20.39% weight loss on the last day of storage compared to the control and low-impact-bruised fruit”
Claim · model-written summary
High-impact bruising significantly reduced firmness.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- bruising at a high impact levele0
- Outcome
- Firmnesse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Firmness and geometric mean diameter were significantly (p < 0.05) reduced by bruising at a high impact level”
t0“Pomegranate”
Claim · model-written summary
High-impact bruising significantly reduced geometric mean diameter.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- bruising at a high impact levele0
- Outcome
- geometric mean diametere0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Firmness and geometric mean diameter were significantly (p < 0.05) reduced by bruising at a high impact level”
t0“Pomegranate”
Claim · model-written summary
Bruising level and temperature decreased fruit lightness, yellowness and browning index over time.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- Impact bruising level and storage temperaturee0
- Outcome
- lightness, yellowness, browning indexe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Impact bruising level and storage temperature decreased lightness, yellowness, browning index, and increased redness over time”
t0“Pomegranate”
Claim · model-written summary
Bruising level and temperature increased redness over time.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- Impact bruising level and storage temperaturee0
- Outcome
- rednesse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Impact bruising level and storage temperature decreased lightness, yellowness, browning index, and increased redness over time”
t0“Pomegranate”
Claim · model-written summary
Respiration at 22 °C was five times that at 5 °C across injury groups.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- stored at 22 °Ce0
- Outcome
- respiration ratee0
- Direction
- highere0
- Value
- five timese0
- Comparator
- stored at 5 °Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the respiration rate was five times higher in the non-bruised and low- and high-impact-injured fruit stored at 22 °C than that stored at 5 °C”
t0“Pomegranate”
Claim · model-written summary
Ethylene production peaked on day 21 in high-impact-bruised fruit.
- Taxon
- pomegranatePunica granatume0
- Outcome
- ethylene production ratee0
- Direction
- higheste0
- Qualifier
- day 21e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ethylene production rate recorded its highest value on day 21 in high-level-impact-bruised pomegranate fruit”
Claim · model-written summary
Bruise susceptibility correlated strongly with most measured parameters.
- Taxon
- pomegranatePunica granatumt0
- Outcome
- bruise susceptibilitye0
- Qualifier
- strongly correlatede0
Not reportedOrgan / stageDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bruise susceptibility was strongly correlated with the majority of the studied parameters”
t0“Pomegranate”
Claim · model-written summary
The authors advise care to avoid postharvest mechanical damage and losses.
- Taxon
- pomegranatePunica granatumt0
- Outcome
- preserve fresh produce and avoid any mechanical damage and lossese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“much care is required to preserve fresh produce and avoid any mechanical damage and losses during postharvest handling”
t0“Pomegranate”
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See all 17 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.