Abstract
ABSTRACT Maintaining kiwifruit firmness is key to global supply chain. Controlled atmosphere (CA) technology can maintain kiwifruit quality. However, there is a risk of ethylene (C 2 H 4 ) accumulation in CA that may accelerate kiwifruit softening. The objectives of this study were to determine the impact of ethylene on kiwifruit quality in CA. ‘Hayward’ kiwifruit were stored in air and CA (5% CO 2 + 2% O 2 ) at 0°C, 95% RH for 13 weeks. Ethylene at concentrations of 10, 100, 1000 nL·L −1 was added after 3 weeks of storage. The responses of kiwifruit to ethylene were dose‐dependent in both air and CA storage. Ethylene‐induced kiwifruit softening was delayed and slowed by CA. However, white‐core inclusions (WCI) disorder was observed after 8 weeks of exposure to 100 and 1000 nL·L −1 ethylene in CA. The lowest concentrations of ethylene (≤ 10 nL·L −1 ) in CA did not influence kiwifruit quality. This work demonstrates that kiwifruit sensitivity to ethylene is lower in CA than that in air, but excessive softening and WCI may negatively impact kiwifruit quality when exposed to a high ethylene concentration in CA for extended periods. Hence, ethylene monitoring and management may be less critical in kiwifruit stored in CA but are required.
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Claims 6
Claim · model-written summary
Kiwifruit responses to ethylene were dose-dependent in both air and CA storage.
- Taxon
- kiwifruit
Actinidia deliciosae0 - Material
- Haywardt0
- Treatment
- ethylenee0
- Outcome
- responses of kiwifruit to ethylenee0
- Qualifier
- dose‐dependent in both air and CA storagee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Hayward’ kiwifruit”
e0“The responses of kiwifruit to ethylene were dose‐dependent in both air and CA storage”
Claim · model-written summary
CA delayed and slowed ethylene-induced kiwifruit softening.
- Taxon
- kiwifruitActinidia deliciosae1
- Treatment
- CAe1
- Outcome
- kiwifruit softeninge1
- Direction
- delayed and slowede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ethylene‐induced kiwifruit softening was delayed and slowed by CA”
Claim · model-written summary
White-core inclusions disorder was observed after 8 weeks of exposure to ethylene in CA.
- Taxon
- kiwifruitActinidia deliciosat0
- Treatment
- ethylenee2
- Outcome
- white‐core inclusions (WCI) disordere2
- Qualifier
- after 8 weeks of exposuree2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Hayward’ kiwifruit”
e2“However, white‐core inclusions (WCI) disorder was observed after 8 weeks of exposure to 100 and 1000 nL·L −1 ethylene in CA”
Claim · model-written summary
The lowest ethylene concentrations (10 nL·L −1 or less) in CA did not influence kiwifruit quality.
- Taxon
- kiwifruitActinidia deliciosae3
- Treatment
- ethylenee3
- Outcome
- kiwifruit qualitye3
- Direction
- did not influencee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The lowest concentrations of ethylene (≤ 10 nL·L −1) in CA did not influence kiwifruit quality”
Claim · model-written summary
Kiwifruit sensitivity to ethylene is lower in CA than in air.
- Taxon
- kiwifruitActinidia deliciosae4
- Treatment
- CAe4
- Outcome
- sensitivity to ethylenee4
- Direction
- lowere4
- Comparator
- aire4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“This work demonstrates that kiwifruit sensitivity to ethylene is lower in CA than that in air”
Claim · model-written summary
Ethylene monitoring and management may be less critical for kiwifruit stored in CA but are still required.
- Taxon
- kiwifruitActinidia deliciosae5
- Outcome
- ethylene monitoring and managemente5
- Qualifier
- may be less criticale5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Hence, ethylene monitoring and management may be less critical in kiwifruit stored in CA but are required”
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