Abstract
Polyphenols are one of the most important dietary antioxidants, and the apples, being a major source of polyphenolic compounds. There is increasing evidence that the consumption of fruit and their preserves, which are rich sources of vitamins and phenolics, is negatively associated with lung cancer and coronary heart disease. The influence of ascorbic acid addition on the quality, polyphenolic profile and antioxidant capacity in 14 selected varieties of apple juices during the 3 years of study was examined. Evaluation of changes of ascorbic acid content allowed to demonstrate the differences in susceptibility of apples on the enzymatic oxidation. The study shows that the variations of the least susceptible to oxidation of ascorbic acid are ‘Shampion’ and ‘Topaz’, and to a lesser extent, ‘Szara Reneta’, ‘Arlet’ and ‘Jonafree’ apples. A total of 17 kinds of polyphenolic compounds including catechins, procyanidins, hydroxycinnamates, flavonols, anthocyanins and dihydrochalcones were identified in apple tissues by HPLC with DAD analysis and after phloroglucinolysis and LC–MS. During the 3 years of study, the addition of ascorbic acid positively affects on the polyphenol compounds and antioxidant capacity (DPPH, ABTS and FRAP), increasing their content in the analyzed samples by 65 and 433, 328 and 300 %, respectively. The correlation coefficient between DPPH, ABTS and FRAP antioxidant capacity and ascorbic acid was 0.71, 0.71 and 0.72, respectively.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Shampion and Topaz apples were least susceptible to ascorbic acid oxidation.
- Taxon
- apples
Malus domesticae1 - Material
- ‘Shampion’ and ‘Topaz’e0
- Outcome
- least susceptible to oxidation of ascorbic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the variations of the least susceptible to oxidation of ascorbic acid are ‘Shampion’ and ‘Topaz’”
e1“apples on the enzymatic oxidation”
Claim · model-written summary
Szara Reneta, Arlet and Jonafree showed somewhat lower resistance to oxidation.
- Taxon
- applesMalus domesticae0
- Material
- ‘Szara Reneta’, ‘Arlet’ and ‘Jonafree’e0
- Outcome
- to a lesser extente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to a lesser extent, ‘Szara Reneta’, ‘Arlet’ and ‘Jonafree’ apples”
Claim · model-written summary
Seventeen polyphenolic compounds were identified in apple tissues.
- Taxon
- appleMalus domesticae0
- Organ / stage
- tissuese0
- Outcome
- polyphenolic compoundse0
- Value
- 17e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A total of 17 kinds of polyphenolic compounds including catechins, procyanidins, hydroxycinnamates, flavonols, anthocyanins and dihydrochalcones were identified in apple tissues”
Claim · model-written summary
Ascorbic acid addition increased polyphenol compounds in apple juice by 65%.
- Taxon
- appleMalus domesticae1
- Treatment
- addition of ascorbic acide0
- Outcome
- polyphenol compoundse0
- Direction
- increasinge0
- Value
- 65e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“addition of ascorbic acid positively affects on the polyphenol compounds and antioxidant capacity (DPPH, ABTS and FRAP), increasing their content in the analyzed samples by 65 and 433, 328 and 300 %, respectively”
e1“apple juices”
Claim · model-written summary
Ascorbic acid addition increased DPPH antioxidant capacity by 433%.
- Taxon
- appleMalus domesticae2
- Treatment
- addition of ascorbic acide1
- Outcome
- DPPHe0
- Direction
- increasinge0
- Value
- 433e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“antioxidant capacity (DPPH, ABTS and FRAP), increasing their content in the analyzed samples by 65 and 433, 328 and 300 %, respectively”
e1“addition of ascorbic acid”
e2“apple juices”
Claim · model-written summary
Ascorbic acid addition increased ABTS antioxidant capacity by 328%.
- Taxon
- appleMalus domesticae2
- Treatment
- addition of ascorbic acide1
- Outcome
- ABTSe0
- Direction
- increasinge0
- Value
- 328e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“antioxidant capacity (DPPH, ABTS and FRAP), increasing their content in the analyzed samples by 65 and 433, 328 and 300 %, respectively”
e1“addition of ascorbic acid”
e2“apple juices”
Claim · model-written summary
Ascorbic acid addition increased FRAP antioxidant capacity by 300%.
- Taxon
- appleMalus domesticae2
- Treatment
- addition of ascorbic acide1
- Outcome
- FRAPe0
- Direction
- increasinge0
- Value
- 300 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“antioxidant capacity (DPPH, ABTS and FRAP), increasing their content in the analyzed samples by 65 and 433, 328 and 300 %, respectively”
e1“addition of ascorbic acid”
e2“apple juices”
Claim · model-written summary
DPPH capacity correlated with ascorbic acid at 0.71.
- Taxon
- appleMalus domesticae1
- Compound
- ascorbic acide0
- Outcome
- DPPHe0
- Value
- 0.71e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“correlation coefficient between DPPH, ABTS and FRAP antioxidant capacity and ascorbic acid was 0.71, 0.71 and 0.72, respectively”
e1“apple juices”
Claim · model-written summary
ABTS capacity correlated with ascorbic acid at 0.71.
- Taxon
- appleMalus domesticae1
- Compound
- ascorbic acide0
- Outcome
- ABTSe0
- Value
- 0.71e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“correlation coefficient between DPPH, ABTS and FRAP antioxidant capacity and ascorbic acid was 0.71, 0.71 and 0.72, respectively”
e1“apple juices”
Claim · model-written summary
FRAP capacity correlated with ascorbic acid at 0.72.
- Taxon
- appleMalus domesticae1
- Compound
- ascorbic acide0
- Outcome
- FRAPe0
- Value
- 0.72e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“correlation coefficient between DPPH, ABTS and FRAP antioxidant capacity and ascorbic acid was 0.71, 0.71 and 0.72, respectively”
e1“apple juices”
The same questions in other papers
ascorbic acid · quality: phytochemicals · Malus domestica (apple)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.