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2021, Number 1

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Rev Cubana Plant Med 2021; 26 (1)

Metabolites side and antioxidant ability of the dried leaf of Moringa oleifera Lam. cultivated in Cuba

Lago AV, Almora HE, González GK, Hernández RY, Echemendia AO, Monteagudo BR

Language: Spanish
References: 21
Page: 1-12
PDF size: 340.62 Kb.


ABSTRACT

Introduction: The Moringa oleifera Lam. specie is an arboreal plant widely cultivated in the tropical areas all around the world, its leaves have great nutritional and medicinal qualities due to the high content of vitamins, amino acids, proteins, polyphenols and flavonoids.
Objective: To determine the antioxidant capacity and the content of secondary metabolites of the dried leaves of Moringa oleifera.
Methods: The plant material that was used corresponded to the leaves of Moringa oleifera Lam., cultivated on land destined to its cultivation for pharmaceutical purposes at the ECTI "Sierra Maestra." The leaves were collected after 90 days of establishment of the crop, in the month of June 2019. The drying was carried out in CONA solar ovens at a temperature lower than 45 ºC. The qualitative analysis was carried out by colorimetric technique and the secondary metabolites and antioxidant capacity by the spectrophotometric method.
Results: The phytochemical screening showed the presence of tannins, flavonoids, oils and fats, alkaloids, triterpenes and steroids, catechins, reducing sugar and amino acids. It has a high content of polyphenols and flavonoids. The antioxidant capacity presented a significant difference between the ethanolic extracts, obtaining the best result at 70%.
Conclusion: It was shown that as the concentration of ethanol increases, the content of polyphenols and flavonoids increases too. The samples extracted with distilled water presented a lower content of these compounds. It was possible to establish a direct relationship between the content of metabolites and the antioxidant capacity.


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