Paper · 2019 · FoodBalt ...

Changes of biologically active compound level in potatoes during storage under fluorescent light

Reinis Zarins; Zanda Kruma; Ilze Skrabule

3
claims
6
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

Potatoes (Solanum tuberosum L.) are globally grown and consumed crop and contains many vitally important elements benefiting human diet that makes them actual subject from scientific and food market standpoint. Potatoes naturally contain active element combination named phenolic compounds that are secondary metabolites and enrich potatoes with antioxidant, anticarcinogenic, antibacterial, etc. qualities. The aim of current study was to evaluate changes of biologically active compound level in potatoes during storage under fluorescent light. In present research potatoes of four varieties ('Imanta', 'Magdalena', 'Blue Congo', and 'Lenora') were tested. For the experiment samples were kept under fluorescent light of 1000 lux for 3 and 7 days in climate chamber with controlled temperature of 20 C and relative humidity of 40% that way imitating real shop shelf conditions. Total phenolic content, antioxidant activity (DPPH and ABTS assays), moisture and firmness was determined in potatoes. It was established that during all storage period potato firmness did not change significantly, while moisture decreased in some cases. Phenolic compounds and antioxidant activity showed variety dependent variations.

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Claims 3

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Potato firmness did not change significantly during storage.

Treatment
fluorescent light of 1000 lux for 3 and 7 dayse1
Outcome
potato firmnesse0
Direction
did not change significantlye0
Setting
climate chambere1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“It was established that during all storage period potato firmness did not change significantly, while moisture decreased in some cases.”

✓ located verbatim in the source · abstract, characters 999–1134 · show in text ↑
e1

“samples were kept under fluorescent light of 1000 lux for 3 and 7 days in climate chamber with controlled temperature of 20 C and relative humidity of 40%”

✓ located verbatim in the source · abstract, characters 678–832 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Moisture decreased in some potato storage cases.

Treatment
fluorescent light of 1000 lux for 3 and 7 dayse1
Outcome
moisturee0
Direction
decreasede0
Qualifier
in some casese0
Setting
climate chambere1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“It was established that during all storage period potato firmness did not change significantly, while moisture decreased in some cases.”

✓ located verbatim in the source · abstract, characters 999–1134 · show in text ↑
e1

“samples were kept under fluorescent light of 1000 lux for 3 and 7 days in climate chamber with controlled temperature of 20 C and relative humidity of 40%”

✓ located verbatim in the source · abstract, characters 678–832 · show in text ↑
Associationobservedoriginal resultmixedmeasured

Claim · model-written summary

Phenolic compounds and antioxidant activity varied with potato variety.

Taxon
potatoesSolanum tuberosumt0
Material
varietye0
Outcome
Phenolic compounds and antioxidant activitye0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Phenolic compounds and antioxidant activity showed variety dependent variations.”

✓ located verbatim in the source · abstract, characters 1135–1215 · show in text ↑
t0

“potatoes”

✓ located verbatim in the source · title, characters 49–57 · show in text ↑

light · quality: postharvest · Solanum tuberosum (potato)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

light · soil: physics · Solanum tuberosum (potato)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
See all 3 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.