Abstract
Public attention is increasingly drawn to the protective effects of natural antioxidants against civilization diseases. An important source of antioxidants are berries, which until recently has received little attention, but the latest research towards the right to it. The phenolic profile and quantitative composition of blueberries as well as the corresponding antioxidant activity of blueberries is well documented. The aim of this paper was the determination of the relationship between different methods of fertilization and total antioxidant activity of six selected varieties of blueberries and five varieties of lingonberries. Each sample of blueberry varieties (Bluejay, Nelson, Bluecrop, Patriot, Berkeley and Brigitta) and lingonberry varieties (Koralle, Ida, Sanna, Linnea and Sussi) were collected from the research station Krivá in Orava. The values of total antioxidant activity of the extracts of studied varieties of blueberry after organic fertilization ranged from 27.15 to 52.25 μg.mg-1 eq. Trolox. After mineral fertilization, the values of total antioxidant activity of the extracts of studied varieties of blueberry ranged from 21.27 to 51.00 μg.mg-1 eq. Trolox. In the control treatment, the values of total antioxidant activity of the extracts of studied varieties of blueberry ranged from 26.99 to 54.15 μg.mg-1 eq. Trolox. The values of values of total antioxidant activity of the extracts of studied varieties of lingonberry after organic fertilization ranged from 42.49 to 60.27 μg.mg-1 eq. Trolox. After mineral fertilization, the values of total antioxidant activity of the extracts of studied varieties of lingonberry were in the interval from 38.85 to 55.15 μg.mg-1 eq. Trolox. In the variant without fertilization, the values of total antioxidant activity of the extracts of studied varieties of lingonberry ranged from 37.16 to 65.11 μg.mg-1 eq. Trolox. The application of organic fertilizer has a positive effect to increasing values of antioxidant activity in blueberries and lingonberries. It should be noted that the value of the total antioxidant activity is significantly influenced by the rainfall.
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Claims 10
Claim · model-written summary
Organically fertilized blueberries had total antioxidant activity of 27.15 to 52.25 μg.mg-1 eq. Trolox.
Verbatim
e0“The values of total antioxidant activity of the extracts of studied varieties of blueberry after organic fertilization ranged from 27.15 to 52.25 μg.mg-1 eq. Trolox.”
Claim · model-written summary
Minerally fertilized blueberries had total antioxidant activity of 21.27 to 51.00 μg.mg-1 eq. Trolox.
Verbatim
e0“After mineral fertilization, the values of total antioxidant activity of the extracts of studied varieties of blueberry ranged from 21.27 to 51.00 μg.mg-1 eq. Trolox.”
Claim · model-written summary
Control blueberries had total antioxidant activity of 26.99 to 54.15 μg.mg-1 eq. Trolox.
Verbatim
e0“In the control treatment, the values of total antioxidant activity of the extracts of studied varieties of blueberry ranged from 26.99 to 54.15 μg.mg-1 eq. Trolox.”
Claim · model-written summary
Organically fertilized lingonberries had total antioxidant activity of 42.49 to 60.27 μg.mg-1 eq. Trolox.
- Taxon
- lingonberry
Vaccinium vitis-idaeae0 - Treatment
- organic fertilizatione0
- Outcome
- total antioxidant activitye0
- Value
- 42.49 to 60.27 μg.mg-1 eq. Troloxe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The values of values of total antioxidant activity of the extracts of studied varieties of lingonberry after organic fertilization ranged from 42.49 to 60.27 μg.mg-1 eq. Trolox.”
Claim · model-written summary
Minerally fertilized lingonberries had total antioxidant activity of 38.85 to 55.15 μg.mg-1 eq. Trolox.
- Taxon
- lingonberryVaccinium vitis-idaeae0
- Treatment
- mineral fertilizatione0
- Outcome
- total antioxidant activitye0
- Value
- 38.85 to 55.15 μg.mg-1 eq. Troloxe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After mineral fertilization, the values of total antioxidant activity of the extracts of studied varieties of lingonberry were in the interval from 38.85 to 55.15 μg.mg-1 eq. Trolox.”
Claim · model-written summary
Unfertilized lingonberries had total antioxidant activity of 37.16 to 65.11 μg.mg-1 eq. Trolox.
- Taxon
- lingonberryVaccinium vitis-idaeae0
- Treatment
- without fertilizatione0
- Outcome
- total antioxidant activitye0
- Value
- 37.16 to 65.11 μg.mg-1 eq. Troloxe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the variant without fertilization, the values of total antioxidant activity of the extracts of studied varieties of lingonberry ranged from 37.16 to 65.11 μg.mg-1 eq. Trolox.”
Claim · model-written summary
Organic fertilizer increased blueberry antioxidant activity.
Not reportedComparator
Verbatim
e0“The application of organic fertilizer has a positive effect to increasing values of antioxidant activity in blueberries and lingonberries.”
Claim · model-written summary
Organic fertilizer increased lingonberry antioxidant activity.
- Taxon
- lingonberriesVaccinium vitis-idaeae0
- Treatment
- organic fertilizere0
- Outcome
- antioxidant activitye0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of organic fertilizer has a positive effect to increasing values of antioxidant activity in blueberries and lingonberries.”
Claim · model-written summary
Rainfall significantly influenced total antioxidant activity.
- Taxon
- highbush blueberry (Vaccinium corymbosum L.)
Vaccinium corymbosumt0 - Treatment
- rainfalle0
- Outcome
- total antioxidant activitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It should be noted that the value of the total antioxidant activity is significantly influenced by the rainfall.”
t0“highbush blueberry (Vaccinium corymbosum L.)”
Claim · model-written summary
Rainfall significantly influenced total antioxidant activity in lingonberry.
- Taxon
- lingonberry (Vaccinium vitis-idaea L.)Vaccinium vitis-idaeat0
- Treatment
- rainfalle0
- Outcome
- total antioxidant activitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It should be noted that the value of the total antioxidant activity is significantly influenced by the rainfall.”
t0“lingonberry (Vaccinium vitis-idaea L.)”
The same questions in other papers
fertilization · quality: phytochemicals · VacciniumResults 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.