Dry biomass and glycosides yield from Stevia rebaudiana leaves under different harvesting times

Authors

  • Carlise Pereira Universidade Federal de Santa Maria
  • Lindolfo Storck Universidade Federal de Santa Maria
  • Sidinei José Lopes Universidade Federal de Santa Maria
  • Thomas Newton Martin Universidade Federal de Santa Maria
  • Dilson Antonio Bisognin Universidade Federal de Santa Maria

DOI:

https://doi.org/10.14393/BJ-v32n6a2016-31574

Keywords:

steviol glycosides, environmental conditions, Stevia rebaudiana

Abstract

The Stevia rebaudiana (Bert) Bertoni is a perennial plant native in the Amambay Hills in the South America. The leaves of this plant produce various natural sweeteners useful to replace the human needs of saccharine. The aims of this study were to evaluate the dry biomass and the glycoside concentration in the Stevia leaves along different growing periods of the growing season to determine the best time to harvest the crops. We selected and identified six groups of 20 plants for analyses. The highest plant yield was found in December, from the first harvest for the groups 3, 4 and 2 with 292.4; 285.2 and 206.7 g m-2, respectively. The sweetener concentrations and the glycosides ranged within the harvests and the compounds analyzed. The highest concentrations of stevioside (12.16% - group 1 and 11.36% - group 5) and rebaudioside C (2.43% - group 5 and 1.95% - group 1) were found in January while rebaudioside A had the highest concentrations of 7.01% (group 6); 6.16% (group 4) and 6.15% (group 3) in December, February and March, respectively. The environmental conditions have influence in days to harvesting as well as in the concentration of glycosides.

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Published

2016-12-06

How to Cite

PEREIRA, C., STORCK, L., LOPES, S.J., MARTIN, T.N. and BISOGNIN, D.A., 2016. Dry biomass and glycosides yield from Stevia rebaudiana leaves under different harvesting times . Bioscience Journal [online], vol. 32, no. 6, pp. 1462–1471. [Accessed1 December 2022]. DOI 10.14393/BJ-v32n6a2016-31574. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/31574.

Issue

Section

Agricultural Sciences