Abstract
The effect of gamma irradiation (0.5~2 kGy) on the microbiological, physicochemical and sensory properties of peaches was investigated during 6 day storage at 20±3 o C. Total aerobic bacteria, yeasts and molds significantly decreased with increasing dose level. In Hunter's color values, L-values decreased and a- and b-values increased with increment of irradiation dose level. Hardness significantly decreased with increment of irradiation dose level whereas pH, soluble solid, and total polyphenol contents increased with increment of irradiation dose level. DPPH (1,1-diphenyl-2-picrylhydrazyl) radical-scavenging activity of irradiated peach was higher than that of control and its activity increased with increment of irradiation dose level. Vitamin C content was not affected by irradiation. In sensory test, overall acceptabilities of irradiated samples were higher than those of control. These results suggest that gamma irradiation on peach was effective for microbiological safety while improving the antioxidant activity, but not good on color and texture of peach.
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Claims 10
Claim · model-written summary
Aerobic bacteria, yeasts and molds decreased significantly with irradiation dose.
- Taxon
- Peach
Prunus persicat0 - Treatment
- increasing dose levele0
- Outcome
- Total aerobic bacteria, yeasts and moldse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total aerobic bacteria, yeasts and molds significantly decreased with increasing dose level”
t0“Peach”
Claim · model-written summary
Peach L color values fell with irradiation dose.
- Taxon
- PeachPrunus persicat0
- Treatment
- irradiation dose levele0
- Outcome
- L-valuese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Hunter's color values, L-values decreased and a- and b-values increased with increment of irradiation dose level”
t0“Peach”
Claim · model-written summary
Peach a and b color values rose with irradiation dose.
- Taxon
- PeachPrunus persicat0
- Treatment
- irradiation dose levele0
- Outcome
- a- and b-valuese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Hunter's color values, L-values decreased and a- and b-values increased with increment of irradiation dose level”
t0“Peach”
Claim · model-written summary
Hardness decreased significantly with irradiation dose.
- Taxon
- PeachPrunus persicat0
- Treatment
- irradiation dose levele0
- Outcome
- Hardnesse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hardness significantly decreased with increment of irradiation dose level”
t0“Peach”
Claim · model-written summary
pH, soluble solids and polyphenols increased with irradiation dose.
- Taxon
- PeachPrunus persicat0
- Treatment
- irradiation dose levele0
- Outcome
- pH, soluble solid, and total polyphenol contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pH, soluble solid, and total polyphenol contents increased with increment of irradiation dose level”
t0“Peach”
Claim · model-written summary
Irradiated peach had higher DPPH radical scavenging activity than controls.
- Taxon
- PeachPrunus persicat0
- Treatment
- irradiated peache0
- Outcome
- radical-scavenging activitye0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“radical-scavenging activity of irradiated peach was higher than that of control”
t0“Peach”
Claim · model-written summary
DPPH radical scavenging activity rose with irradiation dose.
- Taxon
- PeachPrunus persicat0
- Treatment
- irradiation dose levele0
- Outcome
- radical-scavenging activity of irradiated peache1
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“its activity increased with increment of irradiation dose level”
e1“radical-scavenging activity of irradiated peach”
t0“Peach”
Claim · model-written summary
Irradiation did not affect vitamin C content.
- Taxon
- PeachPrunus persicat0
- Treatment
- irradiatione0
- Outcome
- Vitamin C contente0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitamin C content was not affected by irradiation”
t0“Peach”
Claim · model-written summary
Irradiated samples had higher overall sensory acceptability than controls.
- Taxon
- PeachPrunus persicat0
- Treatment
- irradiated samplese0
- Outcome
- overall acceptabilitiese0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overall acceptabilities of irradiated samples were higher than those of control”
t0“Peach”
Claim · model-written summary
The authors judged irradiation effective for microbial safety and antioxidant activity but unfavorable for color and texture.
- Taxon
- peachPrunus persicae0
- Outcome
- effective for microbiological safety while improving the antioxidant activity, but not good on color and texture of peache0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“gamma irradiation on peach was effective for microbiological safety while improving the antioxidant activity, but not good on color and texture of peach”
The same questions in other papers
radiation · quality: postharvest · Prunus persica (peach)Positive and negative results
1 in the opposite direction
- positive
radiation · quality: phytochemicals · Prunus persica (peach)Results agree
2 papers in the same direction as this paper
- positive
- 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.