Paper · 1968 · Journal of the Science of Food and Agriculture

Survey of o‐phenylphenol residues found in marketable citrus fruit

Anna Rajzman; A. Apfelbaum

7
claims
14
verbatim quotes
7
citations
2
research areas
—
Not open access

Abstract

Abstract Residues of o ‐phenylphenol (OPP) were determined in peel, pulp and the whole fruit of Shamouti and Valencia oranges, grapefruits and lemons which were treated under industrial conditions with solutions of sodium‐ o ‐phenylphenate (SOPP). The OPP residues found in the peel of the different species of citrus fruit varied from 5.4 to 26.1 ppm OPP. In many cases OPP residues were not detectable in the pulp, and in other cases traces and 0.4 ppm of OPP were found. The residues in the whole fruit were found to range from 1.8 to 8.3 ppm, with 80% of the samples analysed containing less than 5 ppm. These amounts were within the tolerance limits generally established for residues of OPP in citrus fruit (10 and 12 ppm of OPP). The SOPP concentration of the disinfectant solutions ranged from 0.24 to 0.55% SOPP.4H 2 O and had little effect on the OPP content of the fruits. The fruits which were treated at a pH below 11.6 usually contained more OPP than those treated at pH values between 11.6 and 12.3.

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Claims 7

Observationobservedoriginal resultmeasured

Claim · model-written summary

OPP residues in citrus fruit peel ranged from 5.4 to 26.1 ppm.

Taxon
citrus fruitCitruse0
Organ / stage
peele0
Outcome
OPP residues found in the peele0
Value
5.4 to 26.1 ppme0

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The OPP residues found in the peel of the different species of citrus fruit varied from 5.4 to 26.1 ppm OPP”

✓ located verbatim in the source · abstract, characters 248–355 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

OPP residues were not detectable in the pulp of citrus fruit in many cases; in other cases traces and 0.4 ppm were found.

Taxon
citrus fruitCitruse0
Organ / stage
pulpe1
Outcome
OPP residuese1
Value
0.4 ppme1
Qualifier
In many casese1

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The OPP residues found in the peel of the different species of citrus fruit varied from 5.4 to 26.1 ppm OPP”

✓ located verbatim in the source · abstract, characters 248–355 · show in text ↑
e1

“In many cases OPP residues were not detectable in the pulp, and in other cases traces and 0.4 ppm of OPP were found”

✓ located verbatim in the source · abstract, characters 357–472 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

OPP residues in whole citrus fruit ranged from 1.8 to 8.3 ppm.

Taxon
citrus fruitCitruse0
Organ / stage
whole fruite2
Outcome
residues in the whole fruite2
Value
1.8 to 8.3 ppme2

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The OPP residues found in the peel of the different species of citrus fruit varied from 5.4 to 26.1 ppm OPP”

✓ located verbatim in the source · abstract, characters 248–355 · show in text ↑
e2

“The residues in the whole fruit were found to range from 1.8 to 8.3 ppm”

✓ located verbatim in the source · abstract, characters 474–545 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Eighty percent of the analysed citrus fruit samples contained less than 5 ppm OPP.

Taxon
citrus fruitCitruse0
Outcome
samples analysed containing less than 5 ppme3
Value
80%e3

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The OPP residues found in the peel of the different species of citrus fruit varied from 5.4 to 26.1 ppm OPP”

✓ located verbatim in the source · abstract, characters 248–355 · show in text ↑
e3

“with 80% of the samples analysed containing less than 5 ppm”

✓ located verbatim in the source · abstract, characters 547–606 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Whole-fruit OPP residues were within the tolerance limits for citrus fruit.

Taxon
citrus fruitCitruse0
Outcome
within the tolerance limitse4
Value
10 and 12 ppm of OPPe4
Comparator
tolerance limitse4

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The OPP residues found in the peel of the different species of citrus fruit varied from 5.4 to 26.1 ppm OPP”

✓ located verbatim in the source · abstract, characters 248–355 · show in text ↑
e4

“These amounts were within the tolerance limits generally established for residues of OPP in citrus fruit (10 and 12 ppm of OPP)”

✓ located verbatim in the source · abstract, characters 608–735 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The SOPP concentration of the disinfectant solutions had little effect on OPP content of citrus fruit.

Taxon
citrus fruitCitruse0
Treatment
SOPP concentration of the disinfectant solutionse6
Outcome
OPP content of the fruitse5
Direction
had little effecte5

Not reportedComparator

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The OPP residues found in the peel of the different species of citrus fruit varied from 5.4 to 26.1 ppm OPP”

✓ located verbatim in the source · abstract, characters 248–355 · show in text ↑
e5

“and had little effect on the OPP content of the fruits”

✓ located verbatim in the source · abstract, characters 828–882 · show in text ↑
e6

“The SOPP concentration of the disinfectant solutions ranged from 0.24 to 0.55%”

✓ located verbatim in the source · abstract, characters 737–815 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Fruits treated at pH below 11.6 usually contained more OPP than fruits treated at pH 11.6 to 12.3.

Taxon
citrus fruitCitruse0
Treatment
pH below 11.6e7
Outcome
OPPe7
Direction
moree7
Qualifier
usuallye7
Comparator
pH values between 11.6 and 12.3e7

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

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The OPP residues found in the peel of the different species of citrus fruit varied from 5.4 to 26.1 ppm OPP”

✓ located verbatim in the source · abstract, characters 248–355 · show in text ↑
e7

“The fruits which were treated at a pH below 11.6 usually contained more OPP than those treated at pH values between 11.6 and 12.3”

✓ located verbatim in the source · abstract, characters 884–1013 · show in text ↑

sodium atom · molecular: metabolites · CitrusResults agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. no effect
See all 2 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.