Abstract
Strawberries (Fragaria × ananassa Duch. cvs. Everest, Elsanta) were grown in a tunnel covered with two films, which were distinguished in their ultraviolet transparency, as well as under open-field conditions. One applied film was not transparent for UVB radiation, and the second film transmitted 70% of UVB radiation. During the present study, the nutritional value and quality parameters of the fruits were evaluated. Strawberries were UV-unresponsive in view of the content of ascorbic acid and sum parameters like total anthocyanins and antioxidant capacity measured with TEAC (trolox equivalent antioxidant capacity), ORAC (oxygen radical absorbance capacity) and total phenols. These parameters were mainly affected by sampling date and cultivar. However, HPLC analysis showed that individual phenolics were affected in the absence of UV radiation. The content of the anthocyanin cyanidin 3-glucoside and the flavonols quercetin 3-glucuronide and kaempferol 3-glucoside was decreased in the fruits grown under UV blocking film compared to open-field grown strawberries. By means of the UV transparent film the content of the mentioned flavonoids could be enhanced up to similar amounts like in open-field grown strawberries. All other phenolics were not consistently affected by UV radiation. This result was independent of cultivar.
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Claims 7
Claim · model-written summary
Ascorbic acid, total anthocyanins and antioxidant measures were unresponsive to UV conditions.
- Taxon
- Strawberries
_single2.jpg?width=60)
Fragaria ×ananassae0 - Treatment
- UVe0
- Outcome
- content of ascorbic acid and sum parameters like total anthocyanins and antioxidant capacitye0
- Direction
- UV-unresponsivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Strawberries were UV-unresponsive in view of the content of ascorbic acid and sum parameters like total anthocyanins and antioxidant capacity measured with TEAC (trolox equivalent antioxidant capacity), ORAC (oxygen radical absorbance capacity) and total phenols.”
Claim · model-written summary
Sampling date and cultivar mainly affected these fruit quality parameters.
- Taxon
- StrawberriesFragaria ×ananassae1
- Material
- cultivare0
- Outcome
- These parameterse0
- Qualifier
- sampling date and cultivare0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These parameters were mainly affected by sampling date and cultivar.”
e1“Strawberries were UV-unresponsive in view of the content of ascorbic acid and sum parameters like total anthocyanins and antioxidant capacity measured with TEAC (trolox equivalent antioxidant capacity), ORAC (oxygen radical absorbance capacity) and total phenols.”
Claim · model-written summary
UV blocking film decreased cyanidin 3-glucoside content versus open field fruit.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- UV blocking filme0
- Outcome
- content of the anthocyanin cyanidin 3-glucosidee0
- Direction
- decreasede0
- Comparator
- open-field grown strawberriese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of the anthocyanin cyanidin 3-glucoside and the flavonols quercetin 3-glucuronide and kaempferol 3-glucoside was decreased in the fruits grown under UV blocking film compared to open-field grown strawberries.”
Claim · model-written summary
UV blocking film decreased quercetin 3-glucuronide content versus open field fruit.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- UV blocking filme0
- Outcome
- quercetin 3-glucuronidee0
- Direction
- decreasede0
- Comparator
- open-field grown strawberriese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of the anthocyanin cyanidin 3-glucoside and the flavonols quercetin 3-glucuronide and kaempferol 3-glucoside was decreased in the fruits grown under UV blocking film compared to open-field grown strawberries.”
Claim · model-written summary
UV blocking film decreased kaempferol 3-glucoside content versus open field fruit.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- UV blocking filme0
- Outcome
- kaempferol 3-glucosidee0
- Direction
- decreasede0
- Comparator
- open-field grown strawberriese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of the anthocyanin cyanidin 3-glucoside and the flavonols quercetin 3-glucuronide and kaempferol 3-glucoside was decreased in the fruits grown under UV blocking film compared to open-field grown strawberries.”
Claim · model-written summary
UV transparent film enhanced the mentioned flavonoids to amounts similar to open field fruit.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- UV transparent filme0
- Outcome
- content of the mentioned flavonoidse0
- Direction
- enhancede0
- Comparator
- open-field grown strawberriese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By means of the UV transparent film the content of the mentioned flavonoids could be enhanced up to similar amounts like in open-field grown strawberries.”
Claim · model-written summary
Other phenolics were not consistently affected by UV radiation, independent of cultivar.
- Taxon
- StrawberriesFragaria ×ananassae1
- Treatment
- UV radiatione0
- Outcome
- All other phenolicse0
- Qualifier
- independent of cultivare0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All other phenolics were not consistently affected by UV radiation. This result was independent of cultivar.”
e1“Strawberries were UV-unresponsive”
The same questions in other papers
uv · molecular: metabolites · Fragaria x ananassa (strawberry)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
uv · quality: phytochemicals · Fragaria x ananassa (strawberry)Positive and negative results
9 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- positive
- no effect
12 papers more in this group
See all 16 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.