Abstract
Among fruits and fruit products, oranges and orange juice are the most widely consumed worldwide. However, the effects of pest infestation of oranges on the quality of orange juice are not yet known. To evaluate the effect of the oriental fruit fly Bactrocera dorsalis on the antioxidant activity of orange juice, we measured changes in the vitamin C (Vc) concentration, total phenol content, and antioxidant activity of orange juice after the introduction of fruit fly eggs. Ten days after the eggs were introduced (larvae removed), the concentration of Vc in orange juice was 18.65 µg/mL, which was 9.16 µg/mL lower than that measured in healthy orange juice. In addition, the total phenol content decreased by 46.519 mg Gallic Acid Equivalents (GAE)/g to 9.748 mg GAE/g. Furthermore, the free-radical scavenging activity decreased from 22.297% to 5.393%. Correlation analysis indicated significant correlations between Vc concentration, total phenol content, and antioxidant activity of orange juice after B. dorsalis infestation. The decrease in Vc concentration, total phenol content and free-radical scavenging activity indicated that B. dorsalis changed the quality of orange juice by affecting the antioxidant activity of the juice after the oranges were infested.
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Claims 4
Claim · model-written summary
Ten days after fruit fly eggs were introduced, vitamin C concentration in orange juice was 9.16 µg/mL lower than in healthy juice.
- Taxon
- orangee4
- Treatment
- eggs were introducede1
- Interactor
- Bactrocera dorsalis
Bactrocera dorsalise5pest - Outcome
- concentration of Vce1
- Direction
- lowere1
- Value
- 9.16 µg/mLe1
- Qualifier
- Ten days after the eggs were introduced (larvae removed)e1
- Comparator
- healthy orange juicee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ten days after the eggs were introduced (larvae removed), the concentration of Vc in orange juice was 18.65 µg/mL, which was 9.16 µg/mL lower than that measured in healthy orange juice”
e4“Correlation analysis indicated significant correlations between Vc concentration, total phenol content, and antioxidant activity of orange juice after B. dorsalis infestation”
e5“the effect of the oriental fruit fly Bactrocera dorsalis on the antioxidant activity of orange juice”
Claim · model-written summary
B. dorsalis infestation decreased total phenol content of orange juice to 9.748 mg GAE/g.
- Taxon
- orangee4
- Treatment
- B. dorsalis infestatione4
- Outcome
- total phenol contente2
- Direction
- decreasede2
- Value
- 9.748 mg GAE/ge2
Not reportedComparator
Verbatim
e2“the total phenol content decreased by 46.519 mg Gallic Acid Equivalents (GAE)/g to 9.748 mg GAE/g”
e4“Correlation analysis indicated significant correlations between Vc concentration, total phenol content, and antioxidant activity of orange juice after B. dorsalis infestation”
e5“the effect of the oriental fruit fly Bactrocera dorsalis on the antioxidant activity of orange juice”
Claim · model-written summary
B. dorsalis infestation decreased the free-radical scavenging activity of orange juice to 5.393%.
- Taxon
- orangee4
- Treatment
- B. dorsalis infestatione4
- Outcome
- free-radical scavenging activitye3
- Direction
- decreasede3
- Value
- 5.393%e3
Not reportedComparator
Verbatim
e3“the free-radical scavenging activity decreased from 22.297% to 5.393%”
e4“Correlation analysis indicated significant correlations between Vc concentration, total phenol content, and antioxidant activity of orange juice after B. dorsalis infestation”
e5“the effect of the oriental fruit fly Bactrocera dorsalis on the antioxidant activity of orange juice”
Claim · model-written summary
Vitamin C concentration, total phenol content and antioxidant activity of orange juice were significantly correlated after B. dorsalis infestation.
- Taxon
- orangee4
- Treatment
- B. dorsalis infestatione4
- Interactor
- B. dorsalisBactrocera dorsalise4pest
- Outcome
- Vc concentration, total phenol content, and antioxidant activitye4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Correlation analysis indicated significant correlations between Vc concentration, total phenol content, and antioxidant activity of orange juice after B. dorsalis infestation”
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See all 5 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.