April 2024 - 16

The one consistency through both years of trials was smoke's lack of an impact on total yield,
researchers said.
" One of the things we want to look
at is, does the influence of smoke
exposure affect the raw material for
acrylamide formation, and do we
get higher acrylamide product from
potatoes that have been smokeexposed? "
McDougal said.
He said between 3,000 and 6,000
metabolites are found in each
potato variety.
McDougal, assisted by Atkinson,
conducted a metabolic analysis of half
the potatoes immediately after harvest.
Bevan then processed the first half of
potatoes into french fries by either par
frying or fully frying them.
McDougal and his team further
studied the fries for the total amount
of reducing sugars, asparagine and
acrylamide. The other half of potatoes
went into storage for six months before
another round of metabolic analysis to
determine any changes during storage.
They were then sent to Bevan for fry
processing and put through another
round of metabolic analysis.
Discussing the second-year results
in December 2023, Atkinson said that
the overall smoke effect created a
slight drop in reducing sugars on all
three varieties, while asparagine levels
dropped in Alturas and Russet Burbanks
but increased in Russet Clearwater.
McDougal and Atkinson both noted
that the smoked potatoes made darker
fries even though the reducing sugars
in the potatoes was lower.
Sugars and asparagine are precursors
to acrylamide formation, McDougal said.
" So, ideally, if those levels are higher
within a potato variety, you would expect
more acrylamide during the frying
process under the same conditions, " he
said. " That's what we'd expect, but I'm
not sure that's what we saw. "
One finding stood out to McDougal:
Potatoes stored for six months were
found to have lower reducing sugars
but produced darker fries.
" Reducing sugars are part of the
color component; you would almost
expect a lighter fry, " he said. " So there
were some disparities in what you
would expect based on the
chemical composition. "
The research will be completed with
Guenthner's economic cost analysis,
expected later this year.
16
Spudman * April 2024

https://www.novasource.com/en/linex/include-group-7-linexr-control-triazine-resistant-weeds-potatoes

April 2024

Table of Contents for the Digital Edition of April 2024

Editor's Letter
Breeding breakthroughs
Psyllid watch
Trail by smoke
Digging up answers
Immense impact
Potato Association of America
National Potato Council
Potatoes USA
Calendar/Ad Index
April 2024 - 1
April 2024 - 2
April 2024 - 3
April 2024 - Editor's Letter
April 2024 - 5
April 2024 - 6
April 2024 - 7
April 2024 - Breeding breakthroughs
April 2024 - 9
April 2024 - 10
April 2024 - 11
April 2024 - Psyllid watch
April 2024 - 13
April 2024 - Trail by smoke
April 2024 - 15
April 2024 - 16
April 2024 - Digging up answers
April 2024 - 18
April 2024 - 19
April 2024 - Immense impact
April 2024 - 21
April 2024 - Potato Association of America
April 2024 - 23
April 2024 - National Potato Council
April 2024 - Potatoes USA
April 2024 - Calendar/Ad Index
April 2024 - 27
April 2024 - 28
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