Abstract
Abstract The effects of the storage atmosphere composition (2% O2 + 4% CO2; 2% O2 + 8% CO2; 2% O2 + 12% CO2) on polyphenoloxidase activity and phenolic content of the ‘Jonagored’ apple variety during cold storage was evaluated, and the relationship with enzymatic browning investigated. Controlled atmosphere storage inhibited the polyphenoloxidase (PPO) activity of apple cubes during storage. It seems that the higher the concentration of carbon dioxide in the storage atmosphere the higher inhibition of PPO and the lower browning achieved. At the substrate-enzyme levels investigated, the phenolic content, substrate level was the major factor determining darkening.
Abstract from the paper’s OpenAlex record; open copy licensed other-oa. 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 4
Claim · model-written summary
Controlled atmosphere storage inhibited PPO activity in apple cubes.
- Taxon
- apple
Malus domesticae0 - Organ / stage
- apple cubese0
- Treatment
- Controlled atmosphere storagee0
- Outcome
- polyphenoloxidase (PPO) activitye0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Controlled atmosphere storage inhibited the polyphenoloxidase (PPO) activity of apple cubes during storage.”
Claim · model-written summary
Higher carbon dioxide concentrations appeared to inhibit PPO more.
- Taxon
- appleMalus domesticat0
- Treatment
- carbon dioxidee0
- Outcome
- inhibition of PPOe0
- Direction
- highere0
- Qualifier
- It seemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It seems that the higher the concentration of carbon dioxide in the storage atmosphere the higher inhibition of PPO and the lower browning achieved.”
t0“apple”
Claim · model-written summary
Higher carbon dioxide concentrations appeared to reduce browning.
- Taxon
- appleMalus domesticat0
- Treatment
- carbon dioxidee0
- Outcome
- browninge0
- Direction
- lowere0
- Qualifier
- It seemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It seems that the higher the concentration of carbon dioxide in the storage atmosphere the higher inhibition of PPO and the lower browning achieved.”
t0“apple”
Claim · model-written summary
Phenolic substrate content was the major determinant of darkening at the investigated levels.
- Taxon
- appleMalus domesticat0
- Compound
- phenolic contente0
- Outcome
- darkeninge0
- Qualifier
- At the substrate-enzyme levels investigatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the substrate-enzyme levels investigated, the phenolic content, substrate level was the major factor determining darkening.”
t0“apple”
The same questions in other papers
storage · physiology: antioxidant enzymes · Malus domestica (apple)Positive and negative results
9 papers in the same direction as this paper · 5 in the opposite direction
- negative
- no effect
- no effect
11 papers more in this group
See all 15 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.