Abstract
Effects of ozone and storage temperature on carrots and two postharvest pathogens— Botrytis cinerea Pers. and Sclerotinia sclerotiorum de Bary—were investigated. Pathogen-inoculated and uninoculated whole carrots were exposed to an ozone concentration of 0 (control), 7.5, 15, 30, or 60 μl·liter -1 . Treatment chambers were flushed with a total flow rate of 0.5 liters·min -1 (air and ozone) for 8 h daily for 28 days. The experiment was repeated twice at storage temperatures of 2, 8, and 16C. The residual ozone concentration (ozone supplied-exhausted and reacted ozone) increased with ozone supply concentration but was less at higher storage temperatures. A 50% reduction of daily growth rates of both fungi at the highest ozone concentration indicated that ozone was fungistatic. Carrot respiration rate, electrolyte leakage, and total color differences increased with ozone concentration. Ozone-treated carrots were lighter (higher L * values) and less intense (lower chroma values) in color than control carrots.
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Claims 7
Claim · model-written summary
Residual ozone rose with supplied ozone concentration.
- Taxon
- Carrots
Daucus carotat0 - Treatment
- ozone supply concentratione0
- Outcome
- residual ozone concentratione0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The residual ozone concentration (ozone supplied-exhausted and reacted ozone) increased with ozone supply concentration but was less at higher storage temperatures.”
t0“Carrots”
Claim · model-written summary
Residual ozone was lower at higher storage temperatures.
- Taxon
- CarrotsDaucus carotat0
- Treatment
- higher storage temperaturese0
- Outcome
- residual ozone concentratione0
- Direction
- lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The residual ozone concentration (ozone supplied-exhausted and reacted ozone) increased with ozone supply concentration but was less at higher storage temperatures.”
t0“Carrots”
Claim · model-written summary
Highest ozone reduced Botrytis cinerea daily growth rate by 50%.
- Taxon
- CarrotsDaucus carotat0
- Treatment
- highest ozone concentratione0
- Interactor
- Botrytis cinerea
Botrytis cinereae1pathogen - Outcome
- daily growth rates of both fungie0
- Direction
- reductione0
- Value
- 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A 50% reduction of daily growth rates of both fungi at the highest ozone concentration indicated that ozone was fungistatic.”
e1“Botrytis cinerea Pers. and Sclerotinia sclerotiorum de Bary”
t0“Carrots”
Claim · model-written summary
Highest ozone reduced Sclerotinia sclerotiorum daily growth rate by 50%.
- Taxon
- CarrotsDaucus carotat0
- Treatment
- highest ozone concentratione0
- Interactor
- Sclerotinia sclerotiorum
Sclerotinia sclerotiorume1pathogen - Outcome
- daily growth rates of both fungie0
- Direction
- reductione0
- Value
- 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A 50% reduction of daily growth rates of both fungi at the highest ozone concentration indicated that ozone was fungistatic.”
e1“Botrytis cinerea Pers. and Sclerotinia sclerotiorum de Bary”
t0“Carrots”
Claim · model-written summary
Carrot respiration, electrolyte leakage and color differences increased with ozone concentration.
- Taxon
- CarrotDaucus carotae0
- Treatment
- ozone concentratione0
- Outcome
- respiration rate, electrolyte leakage, and total color differencese0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carrot respiration rate, electrolyte leakage, and total color differences increased with ozone concentration.”
Claim · model-written summary
Ozone-treated carrots were lighter than controls.
- Taxon
- carrotsDaucus carotae0
- Treatment
- Ozone-treatede0
- Outcome
- L * valuese0
- Direction
- highere0
- Comparator
- control carrotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ozone-treated carrots were lighter (higher L * values) and less intense (lower chroma values) in color than control carrots.”
Claim · model-written summary
Ozone-treated carrots had less intense color than controls.
- Taxon
- carrotsDaucus carotae0
- Treatment
- Ozone-treatede0
- Outcome
- chroma valuese0
- Direction
- lowere0
- Comparator
- control carrotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ozone-treated carrots were lighter (higher L * values) and less intense (lower chroma values) in color than control carrots.”
The same questions in other papers
ozone · Sclerotinia sclerotiorum · Daucus carota (carrot)Positive and negative results
1 in the opposite direction
- no effect
ozone · Botrytis cinerea · Daucus carota (carrot)Results agree
1 paper in the same direction as this paper
- positive
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.