Abstract
`Golden Delicious' apples (Malus domestica Borkh.) harvested at the preclimacteric and climacteric stages of ripening were stored for up to 8 months at 1C in air and under various controlled atmosphere(s) (CA), including ultralow oxygen (ULO) storage conditions. Aroma volatiles were measured at 2-month intervals in fruit ripened for 10 days at 20C. Fruits harvested at the climacteric stage produced more volatiles during all storage conditions than preclimacteric fruit. All CA storage treatments suppressed aroma production compared to cold storage. The greatest reduction was found under ULO (1% O 2 ) and high CO 2 (3%) conditions. A partial recovery of aroma production was observed when CA fruits were subsequently stored for 14 days under cold storage conditions. Suppression of aroma production under ULO conditions seems to be related to low fatty acid synthesis and/or degradation, and is restricted to volatiles having a straight C chain. Production of branched C-chain aroma compounds was suppressed by high CO 2 concentrations. The reduced capacity of aroma production during shelf life after ULO storage is confined to apple cultivars producing mainly ester compounds with a straight C-chain, e.g., `Golden Delicious'.
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Claims 7
Claim · model-written summary
Apples harvested at the climacteric stage produced more volatiles under all storage conditions than preclimacteric fruit.
- Taxon
- Malus domestica
Malus domesticae1 - Treatment
- harvested at the climacteric stagee0
- Outcome
- volatilese0
- Direction
- moree0
- Comparator
- preclimacteric fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruits harvested at the climacteric stage produced more volatiles during all storage conditions than preclimacteric fruit”
e1“Malus domestica”
Claim · model-written summary
All controlled-atmosphere storage treatments suppressed aroma production compared with cold storage.
- Taxon
- Malus domesticaMalus domesticae1
- Treatment
- CA storagee0
- Outcome
- aroma productione0
- Direction
- suppressede0
- Comparator
- cold storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All CA storage treatments suppressed aroma production compared to cold storage”
e1“Malus domestica”
Claim · model-written summary
The greatest reduction in aroma production was found under ULO (1% O2) and high CO2 (3%) conditions.
- Taxon
- Malus domesticaMalus domesticae1
- Treatment
- ULO (1% O 2 ) and high CO 2 (3%) conditionse0
- Outcome
- greatest reductione0
- Direction
- greatest reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest reduction was found under ULO (1% O 2 ) and high CO 2 (3%) conditions”
e1“Malus domestica”
Claim · model-written summary
A partial recovery of aroma production was observed when CA fruits were subsequently stored 14 days under cold storage conditions.
- Taxon
- Malus domesticaMalus domesticae1
- Treatment
- stored for 14 days under cold storage conditionse0
- Outcome
- aroma productione0
- Direction
- partial recoverye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A partial recovery of aroma production was observed when CA fruits were subsequently stored for 14 days under cold storage conditions”
e1“Malus domestica”
Claim · model-written summary
Suppression of aroma production under ULO conditions seems related to low fatty acid synthesis and/or degradation, and is restricted to volatiles with a straight C chain.
- Taxon
- Malus domesticaMalus domesticae1
- Treatment
- ULO conditionse0
- Compound
- fatty acide0
- Outcome
- Suppression of aroma productione0
- Qualifier
- restricted to volatiles having a straight C chaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Suppression of aroma production under ULO conditions seems to be related to low fatty acid synthesis and/or degradation, and is restricted to volatiles having a straight C chain”
e1“Malus domestica”
Claim · model-written summary
Production of branched C-chain aroma compounds was suppressed by high CO2 concentrations.
- Taxon
- Malus domesticaMalus domesticae1
- Treatment
- high CO 2 concentrationse0
- Outcome
- Production of branched C-chain aroma compoundse0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Production of branched C-chain aroma compounds was suppressed by high CO 2 concentrations”
e1“Malus domestica”
Claim · model-written summary
The reduced aroma production capacity during shelf life after ULO storage is confined to apple cultivars producing mainly straight C-chain esters, e.g. Golden Delicious.
- Taxon
- Malus domesticaMalus domesticae1
- Material
- Golden Deliciouse0
- Outcome
- reduced capacity of aroma productione0
- Qualifier
- apple cultivars producing mainly ester compounds with a straight C-chaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduced capacity of aroma production during shelf life after ULO storage is confined to apple cultivars producing mainly ester compounds with a straight C-chain, e.g., `Golden Delicious'”
e1“Malus domestica”
The same questions in other papers
cold · quality: phytochemicals · Malus domestica (apple)Positive and negative results
11 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
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See all 15 papers →storage · quality: phytochemicals · Malus domestica (apple)Positive and negative results
19 papers in the same direction as this paper · 19 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
37 papers more in this group
See all 41 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.