Paper · 1995 · Journal of the American Oil Chemists Society

Effect of germination on tannin, mineral, and trace element composition of groundnut varieties

P. Udayasekhara Rao

11
claims
19
verbatim quotes
12
citations
1
research areas
—
Not open access

Abstract

Abstract Groundnut varieties were analyzed for their tannin, ionizable iron, soluble zinc, phytate phosphorus, total iron, total phosphorus, total zinc, copper, magnesium, and manganese contents in ungerminated seed and after 0, 24, 48, and 72 h of germination. Tannin content varied between 100 and 623 mg/100 g; ionizable iron ranged from 136–2178 µg/100 g; phytate phosphorus ranged from 415–655 mg/100 g; soluble zinc varied between 776 and 951 µg/100 g of kernels. Soaking groundnuts overnight in water resulted in a decrease in content of most of the minerals, trace elements, tannins, and soluble zinc. As the germination period increased from 0 to 24, 48, and 72 h, ionizable iron (50%) and soluble zinc (95%) increased substantially. Ionizable iron as percent of total iron increased from 10% in ungerminated kernels to 23% in 72‐h germinated kernels. Soluble zinc as percent of total zinc also increased from 18% in ungerminated groundnuts to 31% in 72‐h germinated ones. There was a negative correlation between tannin content and ionizable iron content of ungerminated and germinated kernels (r=−0.5203). Germination decreased the antinutritional factors, such as tannin, and increased the bioavailable forms of iron and zinc, namely ionizable iron and soluble zinc contents of groundnut kernels.

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Claims 11

Observationobservedoriginal resultmeasured

Claim · model-written summary

Groundnut kernel tannin content ranged from 100 to 623 mg/100 g.

Taxon
GroundnutArachis hypogaeat0
Outcome
Tannin contente0
Value
100 and 623 mg/100 ge0

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

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

Verbatim

e0

“Tannin content varied between 100 and 623 mg/100 g”

✓ located verbatim in the source · abstract, characters 262–312 · show in text ↑
t0

“groundnut”

✓ located verbatim in the source · title, characters 75–84 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Ionizable iron ranged from 136 to 2178 µg/100 g.

Taxon
groundnutArachis hypogaeat0
Outcome
ionizable irone0
Value
136–2178 µg/100 ge0

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

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

Verbatim

e0

“ionizable iron ranged from 136–2178 µg/100 g”

✓ located verbatim in the source · abstract, characters 314–358 · show in text ↑
t0

“groundnut”

✓ located verbatim in the source · title, characters 75–84 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Phytate phosphorus ranged from 415 to 655 mg/100 g.

Taxon
groundnutArachis hypogaeat0
Outcome
phytate phosphoruse0
Value
415–655 mg/100 ge0

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

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

Verbatim

e0

“phytate phosphorus ranged from 415–655 mg/100 g”

✓ located verbatim in the source · abstract, characters 360–407 · show in text ↑
t0

“groundnut”

✓ located verbatim in the source · title, characters 75–84 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Soluble zinc ranged from 776 to 951 µg/100 g of kernels.

Taxon
groundnutArachis hypogaeat0
Outcome
soluble zince0
Value
776 and 951 µg/100 ge0

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

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

Verbatim

e0

“soluble zinc varied between 776 and 951 µg/100 g of kernels”

✓ located verbatim in the source · abstract, characters 409–468 · show in text ↑
t0

“groundnut”

✓ located verbatim in the source · title, characters 75–84 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Overnight water soaking decreased most minerals and trace elements in groundnuts.

Taxon
groundnutsArachis hypogaeae0
Treatment
Soaking groundnuts overnight in watere0
Outcome
content of most of the minerals, trace elementse0
Direction
decreasee0

Not reportedComparator

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

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

Verbatim

e0

“Soaking groundnuts overnight in water resulted in a decrease in content of most of the minerals, trace elements, tannins, and soluble zinc.”

✓ located verbatim in the source · abstract, characters 470–609 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Overnight soaking decreased tannins and soluble zinc in groundnuts.

Taxon
groundnutsArachis hypogaeae0
Treatment
Soaking groundnuts overnight in watere0
Outcome
tannins, and soluble zince0
Direction
decreasee0

Not reportedComparator

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

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

Verbatim

e0

“Soaking groundnuts overnight in water resulted in a decrease in content of most of the minerals, trace elements, tannins, and soluble zinc.”

✓ located verbatim in the source · abstract, characters 470–609 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Germination increased ionizable iron by 50%.

Taxon
groundnutArachis hypogaeat0
Treatment
germination periode0
Outcome
ionizable irone0
Direction
increasede0
Value
50%e0
Comparator
0e0

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

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

Verbatim

e0

“As the germination period increased from 0 to 24, 48, and 72 h, ionizable iron (50%) and soluble zinc (95%) increased substantially.”

✓ located verbatim in the source · abstract, characters 610–742 · show in text ↑
t0

“groundnut”

✓ located verbatim in the source · title, characters 75–84 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Germination increased soluble zinc by 95%.

Taxon
groundnutArachis hypogaeat0
Treatment
germination periode0
Outcome
soluble zince0
Direction
increasede0
Value
95%e0
Comparator
0e0

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

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

Verbatim

e0

“As the germination period increased from 0 to 24, 48, and 72 h, ionizable iron (50%) and soluble zinc (95%) increased substantially.”

✓ located verbatim in the source · abstract, characters 610–742 · show in text ↑
t0

“groundnut”

✓ located verbatim in the source · title, characters 75–84 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ionizable iron as a fraction of total iron rose from 10% in ungerminated to 23% in 72-hour germinated kernels.

Taxon
groundnutArachis hypogaeat0
Treatment
72‐h germinated kernelse0
Outcome
Ionizable iron as percent of total irone0
Direction
increasede0
Value
23%e0
Qualifier
10%e0
Comparator
ungerminated kernelse0

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

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

Verbatim

e0

“Ionizable iron as percent of total iron increased from 10% in ungerminated kernels to 23% in 72‐h germinated kernels.”

✓ located verbatim in the source · abstract, characters 743–860 · show in text ↑
t0

“groundnut”

✓ located verbatim in the source · title, characters 75–84 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soluble zinc as a fraction of total zinc rose from 18% in ungerminated groundnuts to 31% after 72 hours germination.

Taxon
groundnutsArachis hypogaeae0
Treatment
72‐h germinated onese0
Outcome
Soluble zinc as percent of total zince0
Direction
increasede0
Value
31%e0
Qualifier
18%e0
Comparator
ungerminated groundnutse0

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

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

Verbatim

e0

“Soluble zinc as percent of total zinc also increased from 18% in ungerminated groundnuts to 31% in 72‐h germinated ones.”

✓ located verbatim in the source · abstract, characters 861–981 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Tannin content was negatively correlated with ionizable iron in ungerminated and germinated kernels.

Taxon
groundnutArachis hypogaeat0
Compound
tannine0
Outcome
ionizable iron contente0
Direction
negativee0
Value
r=−0.5203e0

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

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

Verbatim

e0

“negative correlation between tannin content and ionizable iron content of ungerminated and germinated kernels (r=−0.5203)”

✓ located verbatim in the source · abstract, characters 994–1115 · show in text ↑
t0

“groundnut”

✓ located verbatim in the source · title, characters 75–84 · show in text ↑

processing · nutrient: content · Arachis hypogaea (peanut)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

1 paper in the same direction as this paper · 1 reporting no difference from an alternative

  1. no effect
  2. positive
See all 3 papers →

stage · nutrient: content · Arachis hypogaea (peanut)Positive and negative results

8 papers: 6 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

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.