Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae)
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| Formato: | Online |
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Universidad de Costa Rica
2010
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/5428 |
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RBT54282022-06-06T18:38:15Z Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae) Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae) Jimoh, Florence Adedapo, Adeolu Aliero, Adamu Afolayan, Anthony antibacterial antioxidante valor nutritional Argemone subfusiformis Urtica urens antioxidant nutritional value Nowadays there is a resurgence of interest in wild plants for their possible medicinal value in diets, since some epidemiological studies have demonstrated their effectiveness against important diseases. Generally, foods of plant origin contain many bioactive compounds, proteins, energy, vitamins and specific minerals; in addition, the popular wild plant species provide fibre, essential fatty acids and enhance the taste and colour in diets. We studied the nutritional and medicinal potential of leaves of A. subfusiformis and U. urens, collected in Alice, South Africa in November 2006. To asses this we analyzed the phytochemical, antioxidant and antibacterial activities of leaves in acetone, methanol and water extracts, using standard analytical methods. The proximate analysis showed that the leaves of both plant species contained appreciable percentages of moisture; ashes; carbohydrates; crude proteins, lipids and fibres. Elemental analysis of macro and microelements showed higher values for U. urens that contained in decreasing order: iron > manganese > zinc > copper > calcium > potassi um > nitrogen > magnesium > phosphorus > sodium, for A. subfusiformis resulted in iron > zinc > manganese > coppe r > calcium > potassium > nitrogen > magnesium > phosphorus > sodium. Besides, the chemical composition showed higher concentration of alkaloids, saponins and phytates in A. subfusiformis. The extracts also caused 1, 1- diphenyl-2-picrylhydrazyl (DPPH) and 2, 2-azinobis-3 ethylbenzothiazoline-6-sulfonic acid (ABTS) radical scavenging activities which were comparable to those of ascorbic acid. The extracts of both plants contained appreciable levels of polyphenols and also caused varied inhibition of some bacterial strains used in this study. When the nutrient and chemical constituents of these plants were compared with recommended dietary allowance (RDA) values, the results revealed that the leaves contain an appreciable amount of nutrients, minerals, and phytochemicals and low levels of toxicants. Since the plants also exhibited some level of antibacterial activities, their use for medicinal purposes is to some extent being justified. Universidad de Costa Rica 2010-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/5428 10.15517/rbt.v58i4.5428 Revista de Biología Tropical; Vol. 58 No. 4 (2010): Volume 58 – Regular number 4 – December 2010; 1517–1531 Revista de Biología Tropical; Vol. 58 Núm. 4 (2010): Volumen 58 – Número regular 4 – Diciembre 2010; 1517–1531 Revista Biología Tropical; Vol. 58 N.º 4 (2010): Volume 58 – Regular number 4 – December 2010; 1517–1531 2215-2075 0034-7744 10.15517/rbt.v58i4 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/5428/5174 Copyright (c) 2010 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
Jimoh, Florence Adedapo, Adeolu Aliero, Adamu Afolayan, Anthony |
| spellingShingle |
Jimoh, Florence Adedapo, Adeolu Aliero, Adamu Afolayan, Anthony Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae) |
| author_facet |
Jimoh, Florence Adedapo, Adeolu Aliero, Adamu Afolayan, Anthony |
| author_sort |
Jimoh, Florence |
| title |
Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae) |
| title_short |
Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae) |
| title_full |
Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae) |
| title_fullStr |
Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae) |
| title_full_unstemmed |
Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae) |
| title_sort |
polyphenolic and biological activities of leaves extracts of argemone subfusiformis (papaveraceae) and urtica urens (urticaceae) |
| title_alt |
Polyphenolic and biological activities of leaves extracts of Argemone subfusiformis (Papaveraceae) and Urtica urens (Urticaceae) |
| publisher |
Universidad de Costa Rica |
| publishDate |
2010 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/5428 |
| work_keys_str_mv |
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1810114538471686144 |