Abstract
The biofortification of leafy vegetables with selenium (Se) is a good way to increase human dietary Se intake. In addition, selenium delays plant senescence by enhancing the antioxidant capacity of plant tissues, decreasing postharvest losses. We investigated the effects of selenium addition on the production and quality of sweet basil (Ocimum basilicum) leaves of two harvesting phases, hereafter referred to as cuts, during the crop cycle. Plants were hydroponically grown and treated with 0 (control), 4, 8 and 12 mg Se L−1 as selenate. To evaluate the growth, nutritional value and quality of the basil leaves, selected qualitative parameters were determined at harvest and after five days of storage. Application of Se at varying rates (4, 8 and 12 mg L−1) was associated with an increased leaf selenium concentration in the first, but not the second cut. The application of Se significantly affected the antioxidant capacity as well as the total phenol and rosmarinic acid contents at harvest. The reduction in ethylene production observed in the plants at 4 mg Se L−1 after five days of storage suggests that this Se treatment could be used to prolong and enhance the shelf-life of basil. The daily consumption of 10 g of Se-enriched basil leaves, which, as an example, are contained in a single portion of Italian pesto sauce, would also satisfy the recommended selenium supplementation in humans.
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Claims 5
Claim · model-written summary
Selenium application at 4, 8 and 12 mg L−1 increased leaf selenium concentration in the first cut of basil compared with the 0 mg L−1 control.
- Taxon
- sweet basil
Ocimum basilicume0 - Organ / stage
- leafe2
- Treatment
- Application of Se at varying rates (4, 8 and 12 mg L−1)e2
- Outcome
- leaf selenium concentratione2
- Direction
- increasede2
- Qualifier
- in the first, but not the second cute2
- Comparator
- 0 (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We investigated the effects of selenium addition on the production and quality of sweet basil (Ocimum basilicum) leaves”
e1“Plants were hydroponically grown and treated with 0 (control), 4, 8 and 12 mg Se L−1 as selenate”
e2“Application of Se at varying rates (4, 8 and 12 mg L−1) was associated with an increased leaf selenium concentration in the first, but not the second cut”
Claim · model-written summary
Selenium application did not increase leaf selenium concentration in the second cut of basil.
- Taxon
- sweet basilOcimum basilicume0
- Treatment
- Application of Se at varying ratese2
- Outcome
- leaf selenium concentratione2
- Direction
- no_changeinferrede2
- Qualifier
- second cute2
- Comparator
- 0 (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We investigated the effects of selenium addition on the production and quality of sweet basil (Ocimum basilicum) leaves”
e1“Plants were hydroponically grown and treated with 0 (control), 4, 8 and 12 mg Se L−1 as selenate”
e2“Application of Se at varying rates (4, 8 and 12 mg L−1) was associated with an increased leaf selenium concentration in the first, but not the second cut”
Claim · model-written summary
Selenium application significantly affected the antioxidant capacity, total phenol and rosmarinic acid contents of basil at harvest.
- Taxon
- sweet basilOcimum basilicume0
- Treatment
- application of See3
- Outcome
- antioxidant capacity as well as the total phenol and rosmarinic acid contentse3
- Qualifier
- at harveste3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We investigated the effects of selenium addition on the production and quality of sweet basil (Ocimum basilicum) leaves”
e3“The application of Se significantly affected the antioxidant capacity as well as the total phenol and rosmarinic acid contents at harvest”
Claim · model-written summary
Selenium at 4 mg L−1 reduced ethylene production in basil leaves after five days of storage.
- Taxon
- sweet basilOcimum basilicume0
- Treatment
- 4 mg Se L−1e4
- Outcome
- ethylene productione4
- Direction
- reductione4
- Qualifier
- after five days of storagee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We investigated the effects of selenium addition on the production and quality of sweet basil (Ocimum basilicum) leaves”
e4“The reduction in ethylene production observed in the plants at 4 mg Se L−1 after five days of storage”
Claim · model-written summary
The authors suggest that the 4 mg L−1 Se treatment could be used to prolong and enhance the shelf life of basil.
- Taxon
- basilOcimum basilicume5
- Treatment
- this Se treatmente5
- Outcome
- shelf-lifee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“this Se treatment could be used to prolong and enhance the shelf-life of basil”
The same questions in other papers
selenium atom · nutrient: content · Ocimum basilicum (basil)Results differ
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.