Abstract
SummaryChanges in the concentrations of trans-resveratrol (Res) and other phenolic compounds in the skin and seeds of red grape (Vitis vinifera × V. amurensis ‘Beiquan’) during low temperature storage (−1º ± 0.5ºC) after post-harvest UV-B and UV-C irradiation and incubation at room temperature (25ºC) were evaluated. No obvious changes in Res levels were observed in control and UV-B-irradiated grape skins after 14 d. A higher content of Res was recorded in UV-B-irradiated grape skins for only 7 d in cold storage, but the content was highest in UV-C-irradiated grape skins for the entire period (28 d) in cold storage. Total levels of anthocyanins in grape skins after either UV treatment were significantly higher than in controls during the first 7 d of storage, while only those in UV-B-treated skins were significantly higher than controls during the later period (from 21 – 28 d) of storage, due to sharp declines in levels of the five main anthocyanins in UV-C-treated grape skins. Total flavan-3-ol and flavonol contents remained constant in UV-B- and UV-C-treated grape skins during cold storage and did not differ from controls. Levels of Res in grape seeds remained constant and did not differ between UV treatments, or from controls, over 28 d of low temperature storage. However, the total flavan-3-ol and flavonol contents in control and UV-B-treated grape seeds declined from day-2 to day-28 of cold storage, while those of UV-C-treated grape seeds remained constant. Changes in catechin and epicatechin were responsible for the changes observed in total flavan-3-ols and flavonols during cold storage.
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Claims 12
Claim · model-written summary
Control and UV-B grape skin resveratrol showed no obvious change after 14 days.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)
Vitis viniferae1 - Organ / stage
- grape skinse0
- Outcome
- Res levelse0
- Direction
- No obvious changese0
- Qualifier
- after 14 de0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No obvious changes in Res levels were observed in control and UV-B-irradiated grape skins after 14 d”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
UV-B irradiated skins had higher resveratrol content for only seven days in cold storage.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae1
- Organ / stage
- grape skinse0
- Treatment
- UV-B-irradiatede0
- Outcome
- content of Rese0
- Direction
- highere0
- Qualifier
- only 7 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A higher content of Res was recorded in UV-B-irradiated grape skins for only 7 d in cold storage”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
UV-C irradiated skins had the highest resveratrol content over 28 days of cold storage.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae1
- Organ / stage
- grape skinse0
- Treatment
- UV-C-irradiatede0
- Outcome
- contente0
- Direction
- higheste0
- Qualifier
- entire period (28 d)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content was highest in UV-C-irradiated grape skins for the entire period (28 d) in cold storage”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
Either UV treatment raised skin anthocyanins over controls in the first seven days.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae1
- Organ / stage
- grape skinse0
- Treatment
- either UV treatmente0
- Outcome
- Total levels of anthocyaninse0
- Direction
- highere0
- Qualifier
- first 7 de0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total levels of anthocyanins in grape skins after either UV treatment were significantly higher than in controls during the first 7 d of storage”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
Only UV-B treated skins had higher anthocyanins than controls from days 21 to 28.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae2
- Treatment
- UV-B-treatede0
- Outcome
- Total levels of anthocyaninse1
- Direction
- highere0
- Qualifier
- from 21 – 28 de0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only those in UV-B-treated skins were significantly higher than controls during the later period (from 21 – 28 d) of storage”
e1“Total levels of anthocyanins in grape skins”
e2“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
Five main anthocyanins sharply declined in UV-C treated skins.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae1
- Organ / stage
- grape skinse0
- Treatment
- UV-C-treatede0
- Outcome
- levels of the five main anthocyaninse0
- Direction
- sharp declinese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sharp declines in levels of the five main anthocyanins in UV-C-treated grape skins”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
Skin flavan-3-ol and flavonol contents stayed constant with UV-B and UV-C and did not differ from controls.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae1
- Organ / stage
- grape skinse0
- Outcome
- Total flavan-3-ol and flavonol contentse0
- Direction
- remained constante0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total flavan-3-ol and flavonol contents remained constant in UV-B- and UV-C-treated grape skins during cold storage and did not differ from controls”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
Seed resveratrol stayed constant and did not differ among UV treatments and controls over 28 days.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae1
- Organ / stage
- grape seedse0
- Outcome
- Levels of Rese0
- Direction
- remained constante0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Levels of Res in grape seeds remained constant and did not differ between UV treatments, or from controls, over 28 d of low temperature storage”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
Control seed flavan-3-ol and flavonol contents declined from day 2 to day 28.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae1
- Organ / stage
- grape seedse0
- Treatment
- controle0
- Outcome
- total flavan-3-ol and flavonol contentse0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total flavan-3-ol and flavonol contents in control and UV-B-treated grape seeds declined from day-2 to day-28 of cold storage”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
UV-B treated seed flavan-3-ol and flavonol contents declined from day 2 to day 28.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae1
- Organ / stage
- grape seedse0
- Treatment
- UV-B-treatede0
- Outcome
- total flavan-3-ol and flavonol contentse0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total flavan-3-ol and flavonol contents in control and UV-B-treated grape seeds declined from day-2 to day-28 of cold storage”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
UV-C treated seed flavan-3-ol and flavonol contents remained constant.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae2
- Organ / stage
- grape seedse0
- Treatment
- UV-C-treatede0
- Outcome
- total flavan-3-ol and flavonol contentse1
- Direction
- remained constante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those of UV-C-treated grape seeds remained constant”
e1“the total flavan-3-ol and flavonol contents in control and UV-B-treated grape seeds”
e2“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
Claim · model-written summary
Catechin and epicatechin changes explained changes in total flavan-3-ols and flavonols during storage.
- Taxon
- grape (Vitis vinifera × V. amurensis ‘Beiquan’)Vitis viniferae1
- Compound
- catechin and epicatechine0
- Outcome
- total flavan-3-ols and flavonolse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes in catechin and epicatechin were responsible for the changes observed in total flavan-3-ols and flavonols during cold storage”
e1“grape (Vitis vinifera × V. amurensis ‘Beiquan’)”
The same questions in other papers
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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.