Moringa oleifera, nutritional, phytochemical and toxicological evaluation of stem, stalk

• Autor(a) principal: Santos, Mirian Lima dos
• Data de Publicação: 2022
• Outros Autores: Oliveira, Antonio Paulo da Silva, Santos, Brenda Nayranne Gomes dos, Silva, Oskar Almeida, Nunes, Lívio Cesar Cunha
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/27682
• topic: Moringa oleifera; Nutritional assessment; Phytochemical; Toxicological; Pharmacological.; Moringa oleifera; Evaluación nutricional; Fitoquímica; Toxicológica; Farmacológica.; Moringa oleífera; Avaliação nutricional; Fitoquímica; Toxicológica; Farmacológica.

The objective of the present work was to compare the nutritional, phytochemical and toxicological aspects of the stem, stalk and leaf of Moringa oleífera. The methodology used for nutritional assessment was centesimal analysis, with quantification of ash, moisture, lipids, proteins and carbohydrates (Aoac, 2005). Qualitative phytochemical analysis was performed using colorimetric methods to identify alkaloids, tannins, flavonoids, saponins and quinones, while the quantification of total phenolic compounds and flavonoids was performed by spectrophotometry and the antioxidant activity was performed using the DPPH method (2 ,2-diphenyl-1-picrylhydrazyl). The presumptive toxicity test was performed through the lethality in Artemia salina (Mclaughlin, 1991). The nutritional analysis showed that all parts have low moisture values and good ash content, also demonstrating the presence of lipids, proteins and carbohydrates. The sheet obtained more significant numbers in relation to the other parts. The phytochemical analysis showed the presence of alkaloids, tannins and flavonoids. The total phenolics of stem, stalk and leaf showed values of 479.47 mg of GAE/100g, 1830.31 mg of GAE/100g and 1468.97 mg of GAE/100g, respectively, and total flavonoids of 147.80 mg of CAE /100g 331.10 mg of CAE/100g and 343.33 mg of CAE/100g for stem, stalk and leaf, respectively. In the antioxidant test, the stalk showed the best reduction of free radicals (545.51 µmol/L). Finally, in the toxicity tests, both the stem, stalk and leaf were low or showed no toxicity.