SciELO - Scientific Electronic Library Online

 
vol.109 número3-4Local land-use planning and the role of conservation: An example analysing opportunitiesTaxonomic research priorities for the conservation of the South African flora índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Em processo de indexaçãoSimilares em Google

Compartilhar


South African Journal of Science

versão On-line ISSN 1996-7489
versão impressa ISSN 0038-2353

Resumo

PAKADE, Vusumzi; CUKROWSKA, Ewa  e  CHIMUKA, Luke. Comparison of antioxidant activity of Moringa oleifera and selected vegetables in South Africa. S. Afr. j. sci. [online]. 2013, vol.109, n.3-4, pp.01-05. ISSN 1996-7489.

The antioxidant activity of the leaves and flowers of the Moringa oleifera plant were investigated and the results were compared to those of selected vegetables (cabbage, spinach, broccoli, cauliflower and peas). Antioxidant activity was determined by analysing the total phenolics content, total flavonoids content, reducing power and radical scavenging activity using the 2,2-diphenyl-1-picrylhydrazyl free radical method. The total phenolics content of moringa was almost twice that of the vegetables and the total flavonoids content was three times that of the selected vegetables. The reducing power of moringa was higher than that of the vegetables and the percentage of free radicals remaining was lower compared with the vegetables. These results combined show that moringa is a good source of antioxidants. This finding also explains why moringa forms part of the diet of people in many developing countries, especially in the southern hemisphere.

Palavras-chave : phenolics; flavonoids; reducing power; 2,2-diphenyl-1-picrylhydrazyl; free radicals.

        · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons