Paper · 1998 · Journal of the American Society for Horticultural Science

Heat Treatment of Mature-green Tomatoes: Differential Effects of Ethylene and Partial Ripening

R.E. McDonald; T.G. McCollum; E.A. Baldwin

17
claims
39
verbatim quotes
20
citations
1
research areas
✓
Open access

Abstract

Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.) were treated in varying order with C 2 H 4 , 42 °C water for 1 hour, 38 °C air for 2days, held 2 days at 20 °C (partial ripening), or not treated and then stored at 2 °C (chilled) for 14 days before ripening at 20 °C. Heat-treated fruit stored at 2 °C and transferred to 20 °C ripened normally, while 63% of nonheated fruit decayed before reaching the red-ripe stage. Partially ripened fruit developed more chilling injury, were firmer, were lighter, and were less red in color than fruit not partially ripened. Lycopene content and internal quality characteristics of fruit were similar at the red-ripe stage irrespective of sequence of C 2 H 4 exposure, heat treatment, or a partial ripening period. Of the 15 flavor volatiles analyzed, 10 were reduced by storage at 2 °C, Exposure to C 2 H 4 before the air heat treatment reduced the levels of four volatiles, while C 2 H 4 application either before or after the water heat treatment had no effect on flavor volatiles. Two volatiles were decreased and two were increased by partial vipening, Storage at 2 °C decreased the level of cholesterol and increased levels of campesterol and isofucosterol in the free sterol pool. Exposure to C 2 H 4 before or following heat treatments, the method of heat treatment, and partial ripening had little effect on free sterols, steryl esters, steryl glycosides, or acylated steryl glycosides in the pericarp of red-ripe fruit. A shortor long-term heat treatment of mature-green tomatoes could permit storage at low temperatures with little loss in their ability to ripen normally, whereas partial ripening did not reduce chilling injury.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 17

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Heat-treated fruit stored at 2 °C and transferred to 20 °C ripened normally.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
Heat-treated fruit stored at 2 °Ce1
Outcome
ripened normallye1

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“Heat-treated fruit stored at 2 °C and transferred to 20 °C ripened normally”

✓ located verbatim in the source · abstract, characters 283–358 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

About 63% of nonheated fruit decayed before reaching the red-ripe stage.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Outcome
decayed before reaching the red-ripe stagee2
Value
63%e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e2

“while 63% of nonheated fruit decayed before reaching the red-ripe stage”

✓ located verbatim in the source · abstract, characters 360–431 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Lycopene content and internal quality characteristics of red-ripe fruit were similar irrespective of ethylene exposure, heat treatment or partial ripening.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Organ / stage
red-ripe stagee3
Treatment
heat treatmente3
Outcome
Lycopene content and internal quality characteristicse3
Direction
were similare3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e3

“Lycopene content and internal quality characteristics of fruit were similar at the red-ripe stage irrespective of sequence of C 2 H 4 exposure, heat treatment, or a partial ripening period”

✓ located verbatim in the source · abstract, characters 577–765 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Partially ripened fruit developed more chilling injury than fruit not partially ripened.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
partial ripeninge5
Outcome
chilling injurye4
Direction
moree4
Comparator
fruit not partially ripenede6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e4

“Partially ripened fruit developed more chilling injury”

✓ located verbatim in the source · abstract, characters 433–487 · show in text ↑
e5

“held 2 days at 20 °C (partial ripening)”

✓ located verbatim in the source · abstract, characters 155–194 · show in text ↑
e6

“were firmer, were lighter, and were less red in color than fruit not partially ripened”

✓ located verbatim in the source · abstract, characters 489–575 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Partially ripened fruit was firmer than fruit not partially ripened.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
partial ripeninge5
Outcome
firmere6
Direction
firmere6
Comparator
fruit not partially ripenede6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e5

“held 2 days at 20 °C (partial ripening)”

✓ located verbatim in the source · abstract, characters 155–194 · show in text ↑
e6

“were firmer, were lighter, and were less red in color than fruit not partially ripened”

✓ located verbatim in the source · abstract, characters 489–575 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Partially ripened fruit was lighter than fruit not partially ripened.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
partial ripeninge5
Outcome
lightere6
Direction
lightere6
Comparator
fruit not partially ripenede6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e5

“held 2 days at 20 °C (partial ripening)”

✓ located verbatim in the source · abstract, characters 155–194 · show in text ↑
e6

“were firmer, were lighter, and were less red in color than fruit not partially ripened”

✓ located verbatim in the source · abstract, characters 489–575 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Partially ripened fruit was less red in color than fruit not partially ripened.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
partial ripeninge5
Outcome
red in colore6
Direction
lesse6
Comparator
fruit not partially ripenede6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e5

“held 2 days at 20 °C (partial ripening)”

✓ located verbatim in the source · abstract, characters 155–194 · show in text ↑
e6

“were firmer, were lighter, and were less red in color than fruit not partially ripened”

✓ located verbatim in the source · abstract, characters 489–575 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Storage at 2 °C decreased the level of free sterol cholesterol.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Organ / stage
free sterol poole1
Treatment
Storage at 2 °Ce1
Outcome
level of cholesterole1
Direction
decreasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“Storage at 2 °C decreased the level of cholesterol and increased levels of campesterol and isofucosterol in the free sterol pool”

✓ located verbatim in the source · abstract, characters 1110–1238 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Storage at 2 °C increased levels of campesterol and isofucosterol in the free sterol pool.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Organ / stage
free sterol poole1
Treatment
Storage at 2 °Ce1
Outcome
levels of campesterol and isofucosterole1
Direction
increasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“Storage at 2 °C decreased the level of cholesterol and increased levels of campesterol and isofucosterol in the free sterol pool”

✓ located verbatim in the source · abstract, characters 1110–1238 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Of 15 flavor volatiles, 10 were reduced by storage at 2 °C.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
storage at 2 °Ce7
Outcome
flavor volatilese7
Direction
reducede7
Value
10e7

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e7

“Of the 15 flavor volatiles analyzed, 10 were reduced by storage at 2 °C”

✓ located verbatim in the source · abstract, characters 767–838 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Exposure to C2H4 before the air heat treatment reduced the levels of four volatiles.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
Exposure to C 2 H 4 before the air heat treatmente1
Outcome
levels of four volatilese1
Direction
reducede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“Exposure to C 2 H 4 before the air heat treatment reduced the levels of four volatiles”

✓ located verbatim in the source · abstract, characters 840–926 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

C2H4 application before or after the water heat treatment had no effect on flavor volatiles.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
C 2 H 4 application either before or after the water heat treatmente1
Outcome
flavor volatilese1
Direction
had no effecte1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“C 2 H 4 application either before or after the water heat treatment had no effect on flavor volatiles”

✓ located verbatim in the source · abstract, characters 934–1035 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Two flavor volatiles were decreased by partial ripening.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
partial vipeninge1
Outcome
Two volatilese1
Direction
decreasede1
Value
Twoe1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“Two volatiles were decreased and two were increased by partial vipening”

✓ located verbatim in the source · abstract, characters 1037–1108 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Two flavor volatiles were increased by partial ripening.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
partial vipeninge1
Outcome
Two volatilese1
Direction
increasede1
Value
twoe1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“Two volatiles were decreased and two were increased by partial vipening”

✓ located verbatim in the source · abstract, characters 1037–1108 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Exposure to C2H4, heat treatment method and partial ripening had little effect on free sterols, steryl esters, steryl glycosides and acylated steryl glycosides in red-ripe pericarp.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Organ / stage
pericarp of red-ripe fruite1
Treatment
partial ripeninge1
Outcome
free sterols, steryl esters, steryl glycosides, or acylated steryl glycosidese1
Direction
had little effecte1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“Exposure to C 2 H 4 before or following heat treatments, the method of heat treatment, and partial ripening had little effect on free sterols, steryl esters, steryl glycosides, or acylated steryl glycosides in the pericarp of red-ripe fruit”

✓ located verbatim in the source · abstract, characters 1240–1480 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

A short- or long-term heat treatment could permit low-temperature storage of mature-green tomatoes with little loss of their ability to ripen normally.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Outcome
ability to ripen normallye1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“A shortor long-term heat treatment of mature-green tomatoes could permit storage at low temperatures with little loss in their ability to ripen normally”

✓ located verbatim in the source · abstract, characters 1482–1634 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Partial ripening did not reduce chilling injury.

Taxon
Lycopersicon esculentumSolanum lycopersicume0
Treatment
partial ripeninge1
Outcome
chilling injurye1
Direction
did not reducee1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Mature-green `Sunbeam' tomatoes ( Lycopersicon esculentum Mill.)”

✓ located verbatim in the source · abstract, characters 0–64 · show in text ↑
e1

“partial ripening did not reduce chilling injury”

✓ located verbatim in the source · abstract, characters 1644–1691 · show in text ↑

heat · quality: phytochemicals · Solanum lycopersicum (tomato)Results differ

32 papers: 17 positive, 15 negative or no effect

14 papers in the same direction as this paper · 17 in the opposite direction

  1. positive
  2. positive
  3. positive

28 papers more in this group

See all 32 papers →

stage · crop injury · Solanum lycopersicum (tomato)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

stage · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results

8 papers: 2 positive, 6 negative or no effect

5 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. no effect

4 papers more in this group

See all 8 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.