Abstract
The strawberry fruit contains abundant polyphenols, such as anthocyanins, flavan-3-ol, and ellagitannin. Polyphenol enrichment improves the quality of strawberries and leads to a better understanding of the polyphenol induction process. We measured the total polyphenol content of strawberry fruits under different growth conditions, developmental stages, and treatment conditions during pre-harvest and post-harvest periods. High fruit polyphenol content was observed in cold treatment, which was selected for further analysis and optimization. A transcriptome analysis of cold-treated fruits suggested that the candidate components of polyphenols may exist in the phenylpropanoid pathway. Coverage with a porous film bag excluded the effects of drought stress and produced polyphenol-rich strawberry fruits without affecting quality or quantity. The degree of stress was assessed using known stress indicators. A rapid accumulation of abscisic acid was followed by an increase in superoxide dismutase and DPPH (2,2-Diphenyl-1-picrylhydrazyl) activity, suggesting that the strawberry fruits responded to cold stress immediately, reaching the climax at around 6 days, a trend consistent with that of polyphenol content. These findings enhance our understanding of the mechanism of post-harvest polyphenol accumulation and the value of strawberries as a functional food.
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Claims 7
Claim · model-written summary
Cold treatment resulted in high polyphenol content in strawberry fruit.
- Taxon
- Fragaria × ananassa
_single2.jpg?width=60)
Fragaria ×ananassat0 - Organ / stage
- fruite1
- Treatment
- cold treatmente1
- Outcome
- fruit polyphenol contente1
- Direction
- Highe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
t0“Strawberry (Fragaria × ananassa)”
e1“High fruit polyphenol content was observed in cold treatment, which was selected for further analysis and optimization”
Claim · model-written summary
Transcriptome analysis suggested that candidate polyphenol components may exist in the phenylpropanoid pathway of cold-treated strawberry fruit.
- Taxon
- Fragaria × ananassaFragaria ×ananassat0
- Outcome
- candidate components of polyphenolse2
- Qualifier
- phenylpropanoid pathwaye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry (Fragaria × ananassa)”
e2“A transcriptome analysis of cold-treated fruits suggested that the candidate components of polyphenols may exist in the phenylpropanoid pathway”
Claim · model-written summary
Covering strawberry fruit with a porous film bag produced polyphenol-rich fruit without affecting quality or quantity.
- Taxon
- Fragaria × ananassaFragaria ×ananassat0
- Organ / stage
- fruitse3
- Treatment
- Coverage with a porous film bage3
- Outcome
- quality or quantitye3
- Direction
- without affectinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry (Fragaria × ananassa)”
e3“Coverage with a porous film bag excluded the effects of drought stress and produced polyphenol-rich strawberry fruits without affecting quality or quantity”
Claim · model-written summary
Covering strawberry fruit with a porous film bag excluded the effects of drought stress.
- Taxon
- Fragaria × ananassaFragaria ×ananassat0
- Treatment
- porous film bage3
- Outcome
- effects of drought stresse3
- Direction
- excludede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry (Fragaria × ananassa)”
e3“Coverage with a porous film bag excluded the effects of drought stress and produced polyphenol-rich strawberry fruits without affecting quality or quantity”
Claim · model-written summary
Abscisic acid accumulated rapidly in cold-stressed strawberry fruit.
- Taxon
- Fragaria × ananassaFragaria ×ananassat0
- Outcome
- rapid accumulation of abscisic acide4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry (Fragaria × ananassa)”
e4“A rapid accumulation of abscisic acid was followed by an increase in superoxide dismutase and DPPH (2,2-Diphenyl-1-picrylhydrazyl) activity, suggesting that the strawberry fruits responded to cold stress immediately, reaching the climax at around 6 days, a trend consistent with that of polyphenol content”
Claim · model-written summary
Superoxide dismutase and DPPH activity increased in cold-stressed strawberry fruit.
- Taxon
- Fragaria × ananassaFragaria ×ananassat0
- Treatment
- cold stresse4
- Outcome
- superoxide dismutase and DPPHe4
- Direction
- increasee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry (Fragaria × ananassa)”
e4“A rapid accumulation of abscisic acid was followed by an increase in superoxide dismutase and DPPH (2,2-Diphenyl-1-picrylhydrazyl) activity, suggesting that the strawberry fruits responded to cold stress immediately, reaching the climax at around 6 days, a trend consistent with that of polyphenol content”
Claim · model-written summary
The stress indicators in cold-stressed strawberry fruit peaked at around 6 days, a trend consistent with polyphenol content.
- Taxon
- Fragaria × ananassaFragaria ×ananassat0
- Outcome
- reaching the climax at around 6 dayse4
- Qualifier
- a trend consistent with that of polyphenol contente4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry (Fragaria × ananassa)”
e4“A rapid accumulation of abscisic acid was followed by an increase in superoxide dismutase and DPPH (2,2-Diphenyl-1-picrylhydrazyl) activity, suggesting that the strawberry fruits responded to cold stress immediately, reaching the climax at around 6 days, a trend consistent with that of polyphenol content”
The same questions in other papers
cold · quality: phytochemicals · Fragaria x ananassa (strawberry)Positive and negative results
7 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
11 papers more in this group
See all 15 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.