Abstract
The levels of health-related phytochemicals were determined in lettuce leaf and in strawberry, raspberry and blueberry fruits grown in near-commercial conditions under plastic films of three different UV transparencies. In the red lettuce Lollo Rosso, total phenolics, anthocyanin, luteolin and quercetin levels were all raised by changing from a UV blocking film to a film of low UV transparency, and to a film of high UV transparency. The related green lettuce, Lollo Biondo, cultivated under the same conditions, showed virtually no phytochemical responses to the same variation in UV levels. Overall, the phenolic levels of strawberries, raspberries, and blueberries were unresponsive to the UV transparency of the plastic film under which the crops were grown. The significance of these findings is discussed in relation to the nutritional quality of soft fruit and salad crops which are increasingly being grown commercially under plastic tunnels.
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Claims 6
Claim · model-written summary
Red lettuce Lollo Rosso had raised total phenolics, anthocyanin and luteolin under more UV transparent films.
- Taxon
- lettuce
Lactuca sativae0 - Material
- Lollo Rossoe0
- Treatment
- a film of low UV transparencye0
- Outcome
- total phenolics, anthocyanin, luteoline0
- Direction
- raisede0
- Comparator
- a UV blocking filme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the red lettuce Lollo Rosso, total phenolics, anthocyanin, luteolin and quercetin levels were all raised by changing from a UV blocking film to a film of low UV transparency, and to a film of high UV transparency”
Claim · model-written summary
Red lettuce Lollo Rosso had raised quercetin under more UV transparent films.
- Taxon
- lettuceLactuca sativae0
- Material
- Lollo Rossoe0
- Treatment
- a film of high UV transparencye0
- Outcome
- quercetin levelse0
- Direction
- raisede0
- Comparator
- a UV blocking filme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the red lettuce Lollo Rosso, total phenolics, anthocyanin, luteolin and quercetin levels were all raised by changing from a UV blocking film to a film of low UV transparency, and to a film of high UV transparency”
Claim · model-written summary
Green lettuce Lollo Biondo showed virtually no phytochemical response to UV variation.
- Taxon
- lettuceLactuca sativae0
- Material
- Lollo Biondoe0
- Treatment
- variation in UV levelse0
- Outcome
- phytochemical responsese0
- Direction
- virtually noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The related green lettuce, Lollo Biondo, cultivated under the same conditions, showed virtually no phytochemical responses to the same variation in UV levels”
Claim · model-written summary
Strawberry phenolic levels were unresponsive to film UV transparency.
- Taxon
- strawberries
_single2.jpg?width=60)
Fragaria ×ananassae0 - Treatment
- UV transparency of the plastic filme0
- Outcome
- phenolic levelse0
- Direction
- unresponsivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Overall, the phenolic levels of strawberries, raspberries, and blueberries were unresponsive to the UV transparency of the plastic film under which the crops were grown”
Claim · model-written summary
Raspberry phenolic levels were unresponsive to film UV transparency.
- Taxon
- raspberriese0
- Treatment
- UV transparency of the plastic filme0
- Outcome
- phenolic levelse0
- Direction
- unresponsivee0
Not reportedComparator
Verbatim
e0“Overall, the phenolic levels of strawberries, raspberries, and blueberries were unresponsive to the UV transparency of the plastic film under which the crops were grown”
Claim · model-written summary
Blueberry phenolic levels were unresponsive to film UV transparency.
- Taxon
- blueberriese0
- Treatment
- UV transparency of the plastic filme0
- Outcome
- phenolic levelse0
- Direction
- unresponsivee0
Not reportedComparator
Verbatim
e0“Overall, the phenolic levels of strawberries, raspberries, and blueberries were unresponsive to the UV transparency of the plastic film under which the crops were grown”
The same questions in other papers
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- no effect
- negative
- negative
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- positive
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mulching · quality: phytochemicals · Rubus idaeus (red raspberry)Positive and negative results
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- positive
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- positive
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- no effect
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3 papers in the same direction as this paper · 17 in the opposite direction
- positive
- positive
- positive
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See all 21 papers →mulching · quality: phytochemicals · VacciniumResults agree
2 papers in the same direction as this paper
- no effect
- no effect
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.