Paper · 1993 · Journal of the American Society for Horticultural Science

Firmness and Decay of Apples following Postharvest Pressure Infiltration of Calcium and Heat Treatment

Carl E. Sams; William S. Conway; Judith A. Abbott; et al.

9
claims
20
verbatim quotes
109
citations
2
research areas
✓
Open access

Abstract

Heating `Golden Delicious' apples (Malus domestica Borkh.) for 4 days at 38C or pressure-infiltrating them with a 4% CaCl 2 solution reduced decay and maintained fruit firmness during 6 months of storage at 0C. Heating reduced decay caused by Penicillium expansum Link ex Thorn by ≈30%, while pressure infiltration with CaCl 2 reduced decay by >60%. Pressure infiltration with CaCl 2 after heating reduced decay by ≈40%. Pressure infiltration maintained firmness best (>84 N), as measured with a manually driven electronic fruit-firmness probe, followed by heat and CaCl 2 (76 N), heat alone (71 N), and no treatment (control) (60 N). Force vs. deformation (FD) curves from a puncture test with a fruit-firmness probe mounted in a universal testing machine showed that fruit heated before storage were firmer than all nonheated fruit, except those pressure-infiltrated with 4% CaCl 2 . However, FD curves also showed that apples pressure-infiltrated with 4% CaCl 2 differed quantitatively from apples in all other treatments, including those heated.

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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 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Heating reduced decay caused by Penicillium expansum by about 30%.

Taxon
Malus domesticaMalus domesticae0
Treatment
Heatinge1
Interactor
Penicillium expansum Link ex ThornPenicillium expansume1pathogen
Outcome
decaye1
Direction
reducede1
Value
≈30%e1

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗
Penicillium expansum
Penicillium expansum · InteractorH.J. Larsen, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“`Golden Delicious' apples (Malus domestica Borkh.)”

✓ located verbatim in the source · abstract, characters 8–58 · show in text ↑
e1

“Heating reduced decay caused by Penicillium expansum Link ex Thorn by ≈30%”

✓ located verbatim in the source · abstract, characters 211–285 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pressure infiltration with CaCl 2 reduced decay by more than 60%.

Taxon
Malus domesticaMalus domesticae0
Treatment
pressure infiltration with CaCl 2e2
Interactor
Penicillium expansum Link ex ThornPenicillium expansume1pathogen
Outcome
decaye2
Direction
reducede2
Value
>60%e2

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗
Penicillium expansum
Penicillium expansum · InteractorH.J. Larsen, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“`Golden Delicious' apples (Malus domestica Borkh.)”

✓ located verbatim in the source · abstract, characters 8–58 · show in text ↑
e1

“Heating reduced decay caused by Penicillium expansum Link ex Thorn by ≈30%”

✓ located verbatim in the source · abstract, characters 211–285 · show in text ↑
e2

“while pressure infiltration with CaCl 2 reduced decay by >60%”

✓ located verbatim in the source · abstract, characters 287–348 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pressure infiltration with CaCl 2 after heating reduced decay by about 40%.

Taxon
Malus domesticaMalus domesticae0
Treatment
Pressure infiltration with CaCl 2 after heatinge3
Interactor
Penicillium expansum Link ex ThornPenicillium expansume1pathogen
Outcome
decaye3
Direction
reducede3
Value
≈40%e3

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗
Penicillium expansum
Penicillium expansum · InteractorH.J. Larsen, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“`Golden Delicious' apples (Malus domestica Borkh.)”

✓ located verbatim in the source · abstract, characters 8–58 · show in text ↑
e1

“Heating reduced decay caused by Penicillium expansum Link ex Thorn by ≈30%”

✓ located verbatim in the source · abstract, characters 211–285 · show in text ↑
e3

“Pressure infiltration with CaCl 2 after heating reduced decay by ≈40%”

✓ located verbatim in the source · abstract, characters 350–419 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Heating maintained fruit firmness during 6 months of storage at 0C.

Taxon
Malus domesticaMalus domesticae0
Treatment
Heatinge5
Outcome
fruit firmnesse5
Direction
maintainede5
Setting
6 months of storage at 0Ce5

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“`Golden Delicious' apples (Malus domestica Borkh.)”

✓ located verbatim in the source · abstract, characters 8–58 · show in text ↑
e5

“Heating `Golden Delicious' apples (Malus domestica Borkh.) for 4 days at 38C or pressure-infiltrating them with a 4% CaCl 2 solution reduced decay and maintained fruit firmness during 6 months of storage at 0C”

✓ located verbatim in the source · abstract, characters 0–209 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pressure infiltration maintained firmness best, above 84 N, compared with heat and CaCl 2.

Taxon
Malus domesticaMalus domesticae0
Treatment
Pressure infiltratione6
Outcome
firmnesse6
Direction
maintained firmness beste6
Value
>84 Ne6
Qualifier
as measured with a manually driven electronic fruit-firmness probee6
Comparator
heat and CaCl 2e6

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“`Golden Delicious' apples (Malus domestica Borkh.)”

✓ located verbatim in the source · abstract, characters 8–58 · show in text ↑
e6

“Pressure infiltration maintained firmness best (>84 N), as measured with a manually driven electronic fruit-firmness probe, followed by heat and CaCl 2 (76 N), heat alone (71 N), and no treatment (control) (60 N)”

✓ located verbatim in the source · abstract, characters 421–633 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Heat alone gave higher fruit firmness (71 N) than no treatment (60 N).

Taxon
Malus domesticaMalus domesticae0
Treatment
heat alonee6
Outcome
firmnesse6
Direction
higherinferrede6
Value
71 Ne6
Comparator
no treatment (control)e6

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“`Golden Delicious' apples (Malus domestica Borkh.)”

✓ located verbatim in the source · abstract, characters 8–58 · show in text ↑
e6

“Pressure infiltration maintained firmness best (>84 N), as measured with a manually driven electronic fruit-firmness probe, followed by heat and CaCl 2 (76 N), heat alone (71 N), and no treatment (control) (60 N)”

✓ located verbatim in the source · abstract, characters 421–633 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Heat and CaCl 2 gave higher fruit firmness (76 N) than no treatment (60 N).

Taxon
Malus domesticaMalus domesticae0
Treatment
heat and CaCl 2e6
Outcome
firmnesse6
Direction
higherinferrede6
Value
76 Ne6
Comparator
no treatment (control)e6

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“`Golden Delicious' apples (Malus domestica Borkh.)”

✓ located verbatim in the source · abstract, characters 8–58 · show in text ↑
e6

“Pressure infiltration maintained firmness best (>84 N), as measured with a manually driven electronic fruit-firmness probe, followed by heat and CaCl 2 (76 N), heat alone (71 N), and no treatment (control) (60 N)”

✓ located verbatim in the source · abstract, characters 421–633 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Apples heated before storage were firmer than nonheated apples, except those pressure-infiltrated with CaCl 2.

Treatment
heated before storagee7
Outcome
deformation (FD) curvese7
Direction
firmere7
Qualifier
except those pressure-infiltrated with 4% CaCl 2e7
Comparator
nonheated fruite7

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“`Golden Delicious' apples (Malus domestica Borkh.)”

✓ located verbatim in the source · abstract, characters 8–58 · show in text ↑
e7

“Force vs. deformation (FD) curves from a puncture test with a fruit-firmness probe mounted in a universal testing machine showed that fruit heated before storage were firmer than all nonheated fruit, except those pressure-infiltrated with 4% CaCl 2”

✓ located verbatim in the source · abstract, characters 635–883 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Apples pressure-infiltrated with CaCl 2 differed quantitatively in FD curves from all other treatments, including heated apples.

Treatment
pressure-infiltrated with 4% CaCl 2e6
Outcome
FD curvese6
Direction
differed quantitativelye6
Comparator
all other treatmentse6

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“`Golden Delicious' apples (Malus domestica Borkh.)”

✓ located verbatim in the source · abstract, characters 8–58 · show in text ↑
e6

“However, FD curves also showed that apples pressure-infiltrated with 4% CaCl 2 differed quantitatively from apples in all other treatments, including those heated”

✓ located verbatim in the source · abstract, characters 886–1048 · show in text ↑

calcium dichloride · quality: postharvest · Malus domestica (apple)Positive and negative results

15 papers: 14 positive, 1 negative or no effect

13 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

calcium dichloride · Penicillium expansum · Malus domestica (apple)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

heat · quality: postharvest · Malus domestica (apple)Results differ

42 papers: 34 positive, 8 negative or no effect

33 papers in the same direction as this paper · 8 in the opposite direction

  1. positive
  2. positive
  3. positive

38 papers more in this group

See all 42 papers →

heat · Penicillium expansum · Malus domestica (apple)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. positive

3 papers more in this group

See all 7 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.