Low-Acrylamide French Fries and Potato Chips
Author Information
Author(s): Caius M. Rommens, Yan Hua, Kathy Swords, Craig Richael, Jing Song Ye
Primary Institution: J. R. Simplot Company
Hypothesis
Can the accumulation of acrylamide in potato products be reduced by silencing asparagine synthetase genes?
Conclusion
The study found that silencing asparagine synthetase genes in potatoes significantly reduces acrylamide levels in processed products without affecting yield or sensory characteristics.
Supporting Evidence
- Transformed potato tubers showed up to 20-fold reduced levels of free asparagine.
- Heat-processed products from low-asparagine tubers contained only 5% of the acrylamide found in wild-type controls.
- The sensory characteristics of fries from transformed tubers were indistinguishable from those of untransformed controls.
- Replacing current potato varieties with intragenic potatoes could reduce average daily acrylamide intake by almost one-third.
Takeaway
Scientists changed potato plants so they make less of a chemical called asparagine, which helps make acrylamide when cooked, leading to healthier fries and chips.
Methodology
The study involved genetic engineering to silence two asparagine synthetase genes in potato tubers and analyze the resulting changes in asparagine and acrylamide levels.
Limitations
The study did not fully explore the effects of environmental stresses on asparagine levels in the field.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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