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Agronomic Biofortification of Stevia rebaudiana with Zinc Oxide (ZnO) Phytonanoparticles and Antioxidant Compounds
- Source :
- Sugar Tech. 23:453-460
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- Agronomic biofortification is a process used to increase the concentration of essential elements in plants through fertilization and thus improve their nutritional quality. Increasing the content of Zn+2 in Stevia rebaudiana plants would imply adding value to the crop. The use of ZnO phytonanoparticles, in addition to increasing the content of Zn+2, can also generate an inductor effect that promotes the synthesis of metabolites of commercial interest. This study reports the effect of fertilization with ZnO phytonanoparticles on morphometric parameters of S. rebaudiana plants and the content of Zn+2, stevioside, rebaudioside A, total phenols, flavonoids and the antiradical activity of leaf extracts. Biofortification was carried out in a hydroponic culture using peat moss/agrolite as a support under a completely random experimental design. The green ZnO nanoparticles were added via root at different concentrations. The physiological and morphometric parameters of the plant were not affected with respect to the control by the use of phytonanoparticles. The biofortification of S. rebaudiana with ZnO phytonanoparticles at a concentration of 75 mg/L enhanced zinc content up to 406.8% with respect to the control. The total phenols (60.5%) and flavonoids (87.8%) were also increased without having a negative effect on plant growth. The biosynthetic pathway of steviol glycosides was not affected.
- Subjects :
- 0106 biological sciences
chemistry.chemical_classification
Biofortification
Glycoside
chemistry.chemical_element
Steviol
04 agricultural and veterinary sciences
Zinc
01 natural sciences
chemistry.chemical_compound
Stevia rebaudiana
chemistry
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
Stevioside
Food science
Phenols
Agronomy and Crop Science
Rebaudioside A
010606 plant biology & botany
Subjects
Details
- ISSN :
- 09740740 and 09721525
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Sugar Tech
- Accession number :
- edsair.doi...........b2af99a40a41c8e4461e3e3d770cfd88