Abstract
The content of acetaldehyde (AA) and ethanol (EtOH) increases in ripening climacteric fruit. Application of EtOH inhibits tomato ( Lycopersicon esculentum ) fruit ripening without affecting subsequent quality, and AA enhances organoleptic quality. AA inhibited ripening of mature-green tomato discs (MGTD) at about 30% conc of EtOH. The relationship between EtOH and AA inhibition of tomato fruit ripening is unclear. The inter-conversion of AA and EtOH is catalyzed by alcohol dehydrogenase (ADH) which is inhibited by 4-methylpyrazole (4-MP). No adverse physiological effects upon ripening were observed in MGTD receiving 20 μL of 4.0 mM 4-MP. Treating MGTD with 0.5 to 4.0 mM 4-MP in concert with AA (≤2.0 μL/g FW) or EtOH (≤8 μL/g FW) was not deleterious to ripening. A rapid, efficient method for the analysis of tissue AA and EtOH was linear (r2 = 0.97) for discs spiked with 0 to 45 μL EtOH. No temporal (0 to 42 h) changes in tissue AA and EtOH were detected in MGTD receiving 2.0 mM 4-MP. MGTD treated with 2.0 mM 4-MP and 8 μL/g FW EtOH had a 360-fold increase in AA after 6 days of ripening, but had no differences on EtOH conc. These conditions maximally inhibited ripening as determined by lycopene content.
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Claims 12
Claim · model-written summary
Ethanol inhibited tomato fruit ripening without affecting subsequent quality.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- EtOHe0
- Outcome
- fruit ripeninge0
- Direction
- inhibitse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of EtOH inhibits tomato ( Lycopersicon esculentum ) fruit ripening without affecting subsequent quality”
Claim · model-written summary
Ethanol did not affect subsequent fruit quality.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- EtOHe0
- Outcome
- subsequent qualitye0
- Direction
- without affectinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of EtOH inhibits tomato ( Lycopersicon esculentum ) fruit ripening without affecting subsequent quality”
Claim · model-written summary
Acetaldehyde enhanced organoleptic quality.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- AAe0
- Outcome
- organoleptic qualitye0
- Direction
- enhancese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AA enhances organoleptic quality”
e1“tomato ( Lycopersicon esculentum ) fruit ripening”
Claim · model-written summary
Acetaldehyde inhibited ripening of mature green tomato discs at about 30% of ethanol concentration.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- mature-green tomato discse0
- Treatment
- AAe0
- Outcome
- ripeninge0
- Direction
- inhibitede0
- Value
- 30%e0
- Comparator
- EtOHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AA inhibited ripening of mature-green tomato discs (MGTD) at about 30% conc of EtOH”
Claim · model-written summary
4-methylpyrazole produced no adverse ripening physiology at the tested dose.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 20 μL of 4.0 mM 4-MPe0
- Outcome
- adverse physiological effects upon ripeninge0
- Direction
- Noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No adverse physiological effects upon ripening were observed in MGTD receiving 20 μL of 4.0 mM 4-MP”
e1“mature-green tomato discs”
Claim · model-written summary
4-methylpyrazole with acetaldehyde was not deleterious to ripening.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 0.5 to 4.0 mM 4-MP in concert with AA (≤2.0 μL/g FW)e0
- Outcome
- ripeninge0
- Direction
- not deleteriouse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treating MGTD with 0.5 to 4.0 mM 4-MP in concert with AA (≤2.0 μL/g FW) or EtOH (≤8 μL/g FW) was not deleterious to ripening”
e1“mature-green tomato discs”
Claim · model-written summary
4-methylpyrazole with ethanol was not deleterious to ripening.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 0.5 to 4.0 mM 4-MP in concert with AA (≤2.0 μL/g FW) or EtOH (≤8 μL/g FW)e0
- Outcome
- ripeninge0
- Direction
- not deleteriouse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treating MGTD with 0.5 to 4.0 mM 4-MP in concert with AA (≤2.0 μL/g FW) or EtOH (≤8 μL/g FW) was not deleterious to ripening”
e1“mature-green tomato discs”
Claim · model-written summary
The tissue acetaldehyde and ethanol analysis was linear across the ethanol spike range.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- lineare0
- Value
- r2 = 0.97e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A rapid, efficient method for the analysis of tissue AA and EtOH was linear (r2 = 0.97) for discs spiked with 0 to 45 μL EtOH”
e1“tomato discs”
Claim · model-written summary
No temporal tissue acetaldehyde or ethanol changes were detected with 2.0 mM 4-MP.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 2.0 mM 4-MPe0
- Outcome
- tissue AA and EtOHe0
- Direction
- No temporal (0 to 42 h) changese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No temporal (0 to 42 h) changes in tissue AA and EtOH were detected in MGTD receiving 2.0 mM 4-MP”
e1“mature-green tomato discs”
Claim · model-written summary
4-MP plus ethanol increased acetaldehyde 360 fold after six days.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 2.0 mM 4-MP and 8 μL/g FW EtOHe0
- Outcome
- AAe0
- Direction
- increasee0
- Value
- 360-folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MGTD treated with 2.0 mM 4-MP and 8 μL/g FW EtOH had a 360-fold increase in AA after 6 days of ripening”
e1“mature-green tomato discs”
Claim · model-written summary
The combined treatment did not alter ethanol concentration.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 2.0 mM 4-MP and 8 μL/g FW EtOHe0
- Outcome
- EtOH conce0
- Direction
- no differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MGTD treated with 2.0 mM 4-MP and 8 μL/g FW EtOH had a 360-fold increase in AA after 6 days of ripening, but had no differences on EtOH conc”
e1“mature-green tomato discs”
Claim · model-written summary
The combined treatment maximally inhibited ripening by lycopene content.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- 2.0 mM 4-MP and 8 μL/g FW EtOHe1
- Outcome
- ripeninge0
- Direction
- maximally inhibitede0
- Qualifier
- lycopene contente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These conditions maximally inhibited ripening as determined by lycopene content”
e1“MGTD treated with 2.0 mM 4-MP and 8 μL/g FW EtOH”
e2“mature-green tomato discs”
The same questions in other papers
ethanol · quality: general · Solanum lycopersicum (tomato)Results differ
1 in the opposite direction
- positive
ethanol · quality: postharvest · Solanum lycopersicum (tomato)Results differ
2 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →ethanol · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
acetaldehyde · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
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.