Abstract
Nitrogen (N) fertilizer is used routinely in potato (Solanum tuberosum) cultivation to maximize yield. However, it also affects sugar and free amino acid concentrations in potato tubers, and this has potential implications for food quality and safety because free amino acids and reducing sugars participate in the Maillard reaction during high-temperature cooking and processing. This results in the formation of color, aroma, and flavor compounds, but also some undesirable contaminants, including acrylamide, which forms when the amino acid that participates in the final stages of the reaction is asparagine. Another mineral, sulfur (S), also has profound effects on tuber composition. In this study, 13 varieties of potato were grown in a field trial in 2010 and treated with different combinations of N and S. Potatoes were analyzed immediately after harvest to show the effect of N and S fertilization on concentrations of free asparagine, other free amino acids, sugars, and acrylamide-forming potential. The study showed that N application can affect acrylamide-forming potential in potatoes but that the effect is type- (French fry, chipping, and boiling) and variety-dependent, with most varieties showing an increase in acrylamide formation in response to increased N but two showing a decrease. S application reduced glucose concentrations and mitigated the effect of high N application on the acrylamide-forming potential of some of the French fry-type potatoes.
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Claims 5
Claim · model-written summary
Higher N increased acrylamide formation in most potato varieties.
- Taxon
- Potato
Solanum tuberosumt0 - Material
- most varietiese0
- Treatment
- increased Ne0
- Outcome
- acrylamide formatione0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most varieties showing an increase in acrylamide formation in response to increased N”
t0“Potato”
Claim · model-written summary
Higher N decreased acrylamide formation in two potato varieties.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- twoe0
- Treatment
- Nt0
- Outcome
- Acrylamide-Forming Potentialt0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but two showing a decrease.”
t0“Nitrogen and Sulfur Fertilization on Free Amino Acids, Sugars, and Acrylamide-Forming Potential in Potato”
Claim · model-written summary
The N effect depended on potato type and variety.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- varietye0
- Outcome
- effecte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect is type- (French fry, chipping, and boiling) and variety-dependent”
t0“Potato”
Claim · model-written summary
Sulfur application reduced glucose concentration.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- S applicatione0
- Outcome
- glucose concentrationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S application reduced glucose concentrations”
t0“Potato”
Claim · model-written summary
Sulfur mitigated high N effects on acrylamide potential in some French fry potatoes.
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- Sulfur Fertilizationt0
- Outcome
- acrylamide-forming potentiale0
- Direction
- mitigatede0
- Comparator
- high N applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mitigated the effect of high N application on the acrylamide-forming potential of some of the French fry-type potatoes.”
t0“Effects of Nitrogen and Sulfur Fertilization on Free Amino Acids, Sugars, and Acrylamide-Forming Potential in Potato”
The same questions in other papers
sulfur atom · molecular: metabolites · Solanum tuberosum (potato)Results agree
6 papers in the same direction as this paper
- positive
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3 papers more in this group
See all 7 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.