Abstract
Garlic is an important bulb vegetable because of its medicinal and nutritional values. Selenium, an important trace element, and humic acid, a soil amendment, can positively affect garlic's nutritional values. To evaluate the impact of selenium and humic acid on antioxidant activity and phenol, flavonoid and allicin contents in garlic, Na 2 SeO 4 solution was sprayed in concentrations of 0, 10, 20 and 30 μg Se/mL, and humic acid was used in fertigation at rates of 0, 10 and 20 kg/ha. Results showed the applied treatments had positive effects on the total antioxidant activity in garlic. The application of low concentrations of Se with moderate amounts of humic acid caused the highest antioxidant activity, as did the application of high Se concentrations with no humic acid. Humic acid at the rate of 10 kg/ha contributed more to the lower total phenol content than did the 20 kg/ha (H 20 ) rate. The Se treatment decreased flavonoid content, and the control plants (Se 0 ) had the highest amount of flavonoids. The results regarding sulphur and allicin contents were greatly similar in that they were both at their maximum level in the Se 0 H 20 treatment. Se 0 led to the highest allicin content, and its difference from other Se treatments was significant ( P < 0.01). A strong negative correlation was found between selenium concentration and allicin content ( R 2 = 0.881). The findings showed that humic acid positively affects most tested traits, but negative or no effects were seen for the Se treatment. Therefore, if the production of Se‐enriched garlic is the aim, a decrease in some nutritional values must be accepted.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
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 11
Claim · model-written summary
Applied treatments increased garlic total antioxidant activity.
- Taxon
- garlic
Allium sativume0 - Treatment
- applied treatmentse0
- Outcome
- total antioxidant activitye0
- Direction
- positive effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed the applied treatments had positive effects on the total antioxidant activity in garlic.”
Claim · model-written summary
Low selenium with moderate humic acid produced the highest antioxidant activity.
- Taxon
- garlicAllium sativumt0
- Treatment
- low concentrations of Se with moderate amounts of humic acide0
- Outcome
- antioxidant activitye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of low concentrations of Se with moderate amounts of humic acid caused the highest antioxidant activity”
t0“garlic”
Claim · model-written summary
High selenium without humic acid also produced the highest antioxidant activity.
- Taxon
- garlicAllium sativumt0
- Treatment
- high Se concentrations with no humic acide0
- Outcome
- antioxidant activitye1
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as did the application of high Se concentrations with no humic acid.”
t0“Antioxidant properties of garlic as affected by selenium and humic acid treatments”
e1“Results showed the applied treatments had positive effects on the total antioxidant activity in garlic.”
e2“The application of low concentrations of Se with moderate amounts of humic acid caused the highest antioxidant activity”
Claim · model-written summary
Humic acid at 10 kg/ha lowered total phenol more than 20 kg/ha.
- Taxon
- garlicAllium sativumt0
- Treatment
- Humic acid at the rate of 10 kg/hae0
- Outcome
- total phenol contente0
- Direction
- lowere0
- Comparator
- 20 kg/ha (H 20 ) ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Humic acid at the rate of 10 kg/ha contributed more to the lower total phenol content than did the 20 kg/ha (H 20 ) rate.”
t0“garlic”
Claim · model-written summary
Selenium treatment decreased flavonoid content.
- Taxon
- garlicAllium sativumt0
- Treatment
- Se treatmente0
- Outcome
- flavonoid contente0
- Direction
- decreasede0
- Comparator
- control plants (Se 0 )e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Se treatment decreased flavonoid content, and the control plants (Se 0 ) had the highest amount of flavonoids.”
t0“garlic”
Claim · model-written summary
Se 0 H 20 gave maximum sulphur content.
- Taxon
- garlicAllium sativumt0
- Treatment
- Se 0 H 20 treatmente0
- Outcome
- sulphure0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulphur and allicin contents were greatly similar in that they were both at their maximum level in the Se 0 H 20 treatment.”
t0“garlic”
Claim · model-written summary
Se 0 H 20 gave maximum allicin content.
- Taxon
- garlicAllium sativumt0
- Treatment
- Se 0 H 20 treatmente0
- Outcome
- allicin contentse0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulphur and allicin contents were greatly similar in that they were both at their maximum level in the Se 0 H 20 treatment.”
t0“garlic”
Claim · model-written summary
Se 0 had the highest allicin content, significantly different from other Se treatments.
- Taxon
- garlicAllium sativumt0
- Treatment
- Se 0e0
- Outcome
- allicin contente0
- Direction
- higheste0
- Value
- P < 0.01e0
- Comparator
- other Se treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Se 0 led to the highest allicin content, and its difference from other Se treatments was significant ( P < 0.01).”
t0“garlic”
Claim · model-written summary
Selenium concentration was negatively correlated with allicin content.
- Taxon
- garlicAllium sativumt0
- Compound
- selenium concentratione0
- Outcome
- allicin contente0
- Direction
- negativee0
- Value
- R 2 = 0.881e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A strong negative correlation was found between selenium concentration and allicin content ( R 2 = 0.881).”
t0“garlic”
Claim · model-written summary
Humic acid positively affected most tested traits.
- Taxon
- garlicAllium sativumt0
- Treatment
- humic acide0
- Outcome
- most tested traitse0
- Direction
- positivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic acid positively affects most tested traits”
t0“garlic”
Claim · model-written summary
Producing selenium enriched garlic requires accepting some nutritional losses.
- Taxon
- garlicAllium sativume0
- Outcome
- decrease in some nutritional values must be acceptede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“if the production of Se‐enriched garlic is the aim, a decrease in some nutritional values must be accepted.”
t0“garlic”
The same questions in other papers
selenium atom · quality: phytochemicals · Allium sativum (garlic)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
2 papers more in this group
See all 6 papers →selenium atom · nutrient: content · Allium sativum (garlic)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
5 papers more in this group
See all 9 papers →selenium atom · molecular: metabolites · Allium sativum (garlic)Results agree
2 papers in the same direction as this paper
- positive
- positive
other · quality: phytochemicals · Allium sativum (garlic)Results agree
3 papers in the same direction as this paper
- positive
- 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.