Profile of phytochemistry and antioxidant activity of sorrel in function of organic fertilization and density of plantio

  • Marina Portugal Torres Fundação Zoobotânica de Belo Horizonte
  • Lanamar de Almeida Carlos Universidade Federal de São João del Rei - Campus Sete Lagoas -UFSJ-CSL - Professora
  • Marinalva Woods Pedrosa EPAMIG/URECO
  • Ana Paula Coelho Madeira Silva Universidade Federal de São João del Rei - Campus Sete Lagoas -UFSJ-CSL - Professora
  • Ernani Clarete da Silva Universidade Federal de São João del Rei - Campus Sete Lagoas -UFSJ-CSL - Professor
  • Leila de Castro Louback Ferraz Universidade Federal de São João del Rei - Campus Sete Lagoas -UFSJ-CSL - Professora
Keywords: Rumex acetosa., Non-conventional vegetable., Bioactive compounds.

Abstract

The revival of non-conventional edible plants enables important gains in nutritional, social, cultural, economic, and environmental points of view. Among them, sorrel — Rumex acetosa L. — has been deemed pleasant by consumers due to its acid taste. As we do not have a lot of phytotechnical and nutritional information about this plant, the objective was to assess the influence of different spacing sets and cattle manure dosages on their physical-chemical characteristics and bioactive compounds content with antioxidant action. Randomized blocks with four repetitions was chosen as experimental design, using a scheme of subdivided plots, with five dosages of weather-beaten cattle manure in the plots and two sets of spacing in the subplots. Data was submitted to a variance analysis with two factors (two-way ANOVA). It was not verified any significant effect (P>0.05) in the interaction Dosage x Spacing. Fertilization dosages and spacing sets did not have any effect on color and total soluble solids average contents, humidity, titratable acidity, and phenolic compounds. Increasing dosages of organic fertilizer, up to 75 kg ha-1, reduced the plant’s pH; above that amount, pH rose. Presence of anthocyanins and vitamin C was not detected. The total carotenoids average content was not influenced by the manure factor, and the plant presented greater total carotenoids content in the smallest spacing. Antioxidant activity [1.0 mg mL-1], although inferior to the standards that were used (BHT, vitamin C and quercetin), was quite representative. A conclusion was reached that fertilizing with weather-beaten cattle manure had an effect only on pH, and cropping spacing had an influence only on carotenoids content. Other phytochemicals and physical-chemical characteristics were not influenced in sorrel plants with different levels of fertilization and sets of spacing.

Downloads

Download data is not yet available.

Author Biographies

Marina Portugal Torres, Fundação Zoobotânica de Belo Horizonte
Enhenheira Agrônoma, Mestre -Departamento Jardim Botânico- Botânica
Lanamar de Almeida Carlos, Universidade Federal de São João del Rei - Campus Sete Lagoas -UFSJ-CSL - Professora
Bacharel em QuimicaA, Doutora,  Departamento de Engenharia de Alimentos -Ciência e Tecnologia de frutas e hortaliças. D
Marinalva Woods Pedrosa, EPAMIG/URECO
Engenheira Agrônomo, Doutora, Pesquisadora da EPAMIG/URECO
Ana Paula Coelho Madeira Silva, Universidade Federal de São João del Rei - Campus Sete Lagoas -UFSJ-CSL - Professora

Matemática, Departamento de Ciências Exatas e Biológicas - Universidade Federal de São João del-Rei

Ernani Clarete da Silva, Universidade Federal de São João del Rei - Campus Sete Lagoas -UFSJ-CSL - Professor

Engenheiro Agrônoimo, Doctor, Departamento de Ciências Agrárias, Universidade Federal de São João del-Rei

Leila de Castro Louback Ferraz, Universidade Federal de São João del Rei - Campus Sete Lagoas -UFSJ-CSL - Professora
Engenheira Agrônoma, Doutora, Fitopatologista - Departamento de CIéncias Agrárias,  Olericultura, Agroecologia. Plantas Medicinais
Published
2019-04-16
Section
Agricultural Sciences