Paper · 1962 · Journal of the American Oil Chemists Society

Analyses of pecan, peanut, and other oils by gas‐liquid chromatography and ultra‐violet spectrophotometry

R. B. French

7
claims
7
verbatim quotes
37
citations
3
research areas
—
Not open access

Abstract

Abstract Comparative analyses of oils obtained from 12 varieties of pecans, 11 of peanuts, two of avocados and one each of citrus seed, Wesson oil, corn, and of lard by GLC and UV procedures showed good agreement except for Wesson oil, corn oil, and lard. Iodine values computed from GLC results checked Wijs values closely. Oleic acid ranged from 51 to 77% in pecans and from 43 to 64% in the peanut with linoleic acid in complementary percentages. Level of palmitic acid in the peanut varied directly with level of linoleic acid, in the avocado it apparently varied directly with level of hexadecenoic acid while in the pecan the level of palmitic remained constant even though the level of unsaturated acids varied widely. Both peanuts and pecans were locally grown under similar environmental conditions.

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Claims 7

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

GLC and UV oil analyses generally agreed, with exceptions for Wesson oil, corn oil, and lard.

Outcome
good agreemente0
Comparator
UV procedurese0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Comparative analyses of oils obtained from 12 varieties of pecans, 11 of peanuts, two of avocados and one each of citrus seed, Wesson oil, corn, and of lard by GLC and UV procedures showed good agreement except for Wesson oil, corn oil, and lard.”

✓ located verbatim in the source · abstract, characters 9–255 · show in text ↑
Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

GLC-derived iodine values closely matched Wijs values.

Outcome
Iodine valuese0
Comparator
Wijs valuese0

Not reportedTaxon

Verbatim

e0

“Iodine values computed from GLC results checked Wijs values closely.”

✓ located verbatim in the source · abstract, characters 256–324 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Pecan oleic acid ranged from 51 to 77%.

Outcome
Oleic acide0
Value
51 to 77%e0

Not reportedDirection

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Oleic acid ranged from 51 to 77% in pecans”

✓ located verbatim in the source · abstract, characters 325–367 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Peanut oleic acid ranged from 43 to 64%.

Outcome
linoleic acid in complementary percentagese0
Value
43 to 64%e0

Not reportedDirection

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“from 43 to 64% in the peanut with linoleic acid in complementary percentages”

✓ located verbatim in the source · abstract, characters 372–448 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Peanut palmitic acid level varied directly with linoleic acid level.

Compound
linoleic acide0
Outcome
Level of palmitic acide0

Not reportedDirection

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Level of palmitic acid in the peanut varied directly with level of linoleic acid”

✓ located verbatim in the source · abstract, characters 450–530 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Avocado palmitic acid apparently varied directly with hexadecenoic acid.

Taxon
avocadoPersea americanae0
Compound
hexadecenoic acide0
Outcome
level of hexadecenoic acide0
Qualifier
apparentlye0

Not reportedDirection

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

Persea americana
Persea americana · TaxonB.navez · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in the avocado it apparently varied directly with level of hexadecenoic acid”

✓ located verbatim in the source · abstract, characters 532–608 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Pecan palmitic acid remained constant despite widely varying unsaturated acids.

Compound
unsaturated acidse0
Outcome
level of palmitice0
Direction
remained constante0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“in the pecan the level of palmitic remained constant even though the level of unsaturated acids varied widely”

✓ located verbatim in the source · abstract, characters 615–724 · show in text ↑