Abstract
The aim of the present work was to study the effect of foliar application of micronutrients [Zinc: Zn1 (0%); Zn2 (0.5%); Zn3 (1.0%) and Boron: B1 (0%); B2 (0.25%); B3 (0.5%)] on the antioxidants and pungency of onion cv. “Sukhsagar” (Allium cepa L.). In this experiment, it was suggested that the highest contents of total and free phenol was obtained by the highest dose of Zn (1%) in combination with 0% B, and single dose of Zn (0.5%) in combination with 0% B respectively. The superoxide dismutase (SOD) activity was found to increase with respect to control following the highest dose of B (0.5%) alone. However, the peroxidase (POD) activity increased more with respect to control following the single dose of B (0.25%) rather than the double dose (0.5%). The highest Molybdate reducing antioxidant potential (MRAP) was observed in 0.5% Zn in combination with 0% B, whereas that of 2, 2-Diphenyl-β-picrylhydrazyl radical scavenging activity (DPPHRAC) was found in the interaction effect of the double doses of both Zn (1%) and B (0.5%), which also offered the lowest lipid peroxidation. The highest pyruvic acid development was observed by the interaction effect of 0% Zn and 0.25% B. Based on the average values of the biochemical parameters and the results of PCA, the treatment with Zn1B3 (0% of Zn in combination with double dose of 0.5% of B) was proved to be most promising with respect to antioxidant properties.
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Claims 9
Claim · model-written summary
One percent Zn with no B produced the highest total phenol content.
- Taxon
- onion
Allium cepat0 - Treatment
- Zn (1%) in combination with 0% Be0
- Outcome
- totale0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest contents of total and free phenol was obtained by the highest dose of Zn (1%) in combination with 0% B, and single dose of Zn (0.5%) in combination with 0% B respectively”
t0“onion”
Claim · model-written summary
Half-percent Zn with no B produced the highest free phenol content.
- Taxon
- onionAllium cepat0
- Treatment
- Zn (0.5%) in combination with 0% Be0
- Outcome
- free phenole0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest contents of total and free phenol was obtained by the highest dose of Zn (1%) in combination with 0% B, and single dose of Zn (0.5%) in combination with 0% B respectively”
t0“onion”
Claim · model-written summary
B at 0.5% alone increased SOD activity versus control.
- Taxon
- onionAllium cepat0
- Treatment
- B (0.5%) alonee0
- Outcome
- superoxide dismutase (SOD) activitye0
- Direction
- increasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The superoxide dismutase (SOD) activity was found to increase with respect to control following the highest dose of B (0.5%) alone.”
t0“onion”
Claim · model-written summary
B at 0.25% increased POD activity more than B at 0.5%, versus control.
- Taxon
- onionAllium cepat0
- Treatment
- B (0.25%)e0
- Outcome
- peroxidase (POD) activitye0
- Direction
- increased moree0
- Comparator
- double dose (0.5%)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the peroxidase (POD) activity increased more with respect to control following the single dose of B (0.25%) rather than the double dose (0.5%)”
t0“onion”
Claim · model-written summary
Half-percent Zn without B yielded the highest MRAP.
- Taxon
- onionAllium cepat0
- Treatment
- 0.5% Zn in combination with 0% Be0
- Outcome
- Molybdate reducing antioxidant potential (MRAP)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest Molybdate reducing antioxidant potential (MRAP) was observed in 0.5% Zn in combination with 0% B”
t0“onion”
Claim · model-written summary
One-percent Zn with 0.5% B yielded the highest DPPH radical scavenging activity.
- Taxon
- onionAllium cepat0
- Treatment
- Zn (1%) and B (0.5%)e0
- Outcome
- 2, 2-Diphenyl-β-picrylhydrazyl radical scavenging activity (DPPHRAC)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that of 2, 2-Diphenyl-β-picrylhydrazyl radical scavenging activity (DPPHRAC) was found in the interaction effect of the double doses of both Zn (1%) and B (0.5%), which also offered the lowest lipid peroxidation”
t0“onion”
Claim · model-written summary
One-percent Zn with 0.5% B gave the lowest lipid peroxidation.
- Taxon
- onionAllium cepat0
- Treatment
- Zn (1%) and B (0.5%)e0
- Outcome
- lipid peroxidatione0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“double doses of both Zn (1%) and B (0.5%), which also offered the lowest lipid peroxidation”
t0“onion”
Claim · model-written summary
No Zn and 0.25% B yielded the highest pyruvic acid development.
- Taxon
- onionAllium cepat0
- Treatment
- 0% Zn and 0.25% Be0
- Outcome
- pyruvic acid developmente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest pyruvic acid development was observed by the interaction effect of 0% Zn and 0.25% B.”
t0“onion”
Claim · model-written summary
The authors judged no Zn and 0.5% B most promising for antioxidant properties.
- Taxon
- onionAllium cepat0
- Treatment
- Zn1B3 (0% of Zn in combination with double dose of 0.5% of B)e0
- Outcome
- antioxidant propertiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment with Zn1B3 (0% of Zn in combination with double dose of 0.5% of B) was proved to be most promising with respect to antioxidant properties”
t0“onion”
The same questions in other papers
zinc atom · quality: phytochemicals · Allium cepa (onion)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
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.