Abstract
Nitrogen is an important element for grapevine and winemaking which affects the development of the plant and yeast, and therefore it is important for wine quality. The aim of this work was to study the influence of foliar application to vineyard of proline, phenylalanine and urea and two commercial nitrogen fertilizers, without and with amino acids in their formulation, on the wine amino acid content and their consumption during the alcoholic fermentation. The results showed that these treatments did not affect the amino acid composition in wines. The differences observed for certain amino acids were so small that the concentration of total amino acids was not significantly different among wines. Moreover, it was observed that the higher the content of amino acids in the medium, the greater their consumption during the alcoholic fermentation.
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Claims 4
Claim · model-written summary
Foliar nitrogen and amino acid treatments of grapevine did not change the amino acid composition of wines.
- Treatment
- foliar application to vineyard of proline, phenylalanine and urea and two commercial nitrogen fertilizerse1
- Outcome
- amino acid composition in winese2
- Direction
- no_changeinferrede2
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Amino acid content in red wines obtained from grapevine nitrogen foliar treatments: consumption during the alcoholic fermentation”
e1“the influence of foliar application to vineyard of proline, phenylalanine and urea and two commercial nitrogen fertilizers, without and with amino acids in their formulation”
e2“these treatments did not affect the amino acid composition in wines”
Claim · model-written summary
Foliar nitrogen and amino acid treatments of grapevine did not significantly change total amino acid concentration in wines.
- Treatment
- foliar application to vineyard of proline, phenylalanine and urea and two commercial nitrogen fertilizerse1
- Outcome
- concentration of total amino acidse3
- Direction
- no_changeinferrede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Amino acid content in red wines obtained from grapevine nitrogen foliar treatments: consumption during the alcoholic fermentation”
e1“the influence of foliar application to vineyard of proline, phenylalanine and urea and two commercial nitrogen fertilizers, without and with amino acids in their formulation”
e3“the concentration of total amino acids was not significantly different among wines”
Claim · model-written summary
Differences in certain wine amino acids after foliar treatment were very small.
- Treatment
- foliar application to vineyard of proline, phenylalanine and urea and two commercial nitrogen fertilizerse1
- Outcome
- differences observed for certain amino acidse4
- Qualifier
- so smalle4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Amino acid content in red wines obtained from grapevine nitrogen foliar treatments: consumption during the alcoholic fermentation”
e1“the influence of foliar application to vineyard of proline, phenylalanine and urea and two commercial nitrogen fertilizers, without and with amino acids in their formulation”
e4“The differences observed for certain amino acids were so small”
Claim · model-written summary
Higher wine amino acid content was associated with greater amino acid consumption during alcoholic fermentation.
- Treatment
- content of amino acids in the mediume5
- Outcome
- consumption during the alcoholic fermentatione5
- Direction
- increaseinferrede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Amino acid content in red wines obtained from grapevine nitrogen foliar treatments: consumption during the alcoholic fermentation”
e5“the higher the content of amino acids in the medium, the greater their consumption during the alcoholic fermentation”
The same questions in other papers
proline · molecular: metabolites · VitisPositive and negative results
1 in the opposite direction
- positive
phenylalanine · molecular: metabolites · VitisPositive and negative results
1 in the opposite direction
- positive
proline · quality: general · VitisResults agree
1 paper in the same direction as this paper
- no effect
phenylalanine · quality: general · VitisResults agree
1 paper in the same direction as this paper
- no effect
nitrogen · quality: general · VitisPositive and negative results
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- positive
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- positive
- positive
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See all 20 papers →application · quality: general · VitisPositive and negative results
5 papers in the same direction as this paper · 26 in the opposite direction
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- positive
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See all 32 papers →fertilization · quality: general · VitisPositive and negative results
9 papers in the same direction as this paper · 28 in the opposite direction
- positive
- positive
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See all 38 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.