Sudanese folk medicine represents a unique blend of indigenous cultures with Islamic, Arabic and African traditions. In addition, Sudan encompasses different terrains and climatic zones, ranging from desert and semi-desert in the north to equatorial with a short rainy season (semi-aridand semi-humid) in the centre to equatorial with a long rainy season (arid-humid and equatorialhumid) in the south. This variation contributes to the immense diversity of vegetation in the region. The flora of Sudan consists of 3137 species of flowering plants belonging to 170 families and 1280 genera. It is estimated that 15% of these plants are endemic to Sudan. The intersection of diverse cultures and the unique geography holds great potential for Sudanese herbal medicine. Medicinal and aromatic plants and their derivatives represent an integral part of life in Sudan. Indigenous remedies are the only form of therapy available to the majority of poor people. It has been estimated that only 11% of the population has access to formal health care. Therefore, research on the desired pharmacological effects and possible unwanted side effects or toxicity is required to improve efficacy and safety of Sudanese herbal medicine. In the future, it would be preferable to promote the use of traditional herbal remedies by conversion of raw plant material into more sophisticated products instead of completely replacing the traditional remedies with synthetic products from industrialized countries. The present review gives an overview of traditional Sudanese medicinal and aromatic herbs and their habitats, traditional uses, and phytochemical constituents.
Natural products have been a rich source of bioactive compounds, some of these compounds showed significant antibacterial activity. Black pepper fruit (Piper nigrum L.) is one of the most famous pungency and flavor spices in the world, it is known as the king of spices. However, its benefit is not restricted on food seasoning. It has numerous bioactive effects on the human body. One of these benefits is its noticeable antibacterial activity. This mini-review summarizes the findings of scientific studies on the antibacterial activity of black pepper fruit against 6gram negative and 7gram positive bacteria, highlights the methods used for testing the antibacterial activity and the best solvent for extraction of the plant. The findings validate the use of this spice in traditional medicine and recommend it as a source of innovative therapeutic agents against food borne pathogens and infectious diseases.
This study reports on the determination of 11 elements in 33 medicinal plants from Sudan and discusses a possible correlation between their curative effects and their trace elements content. Further, a possible accumulation of adverse heavy metals could be excluded. A total of 11 elements (cadmium, lead, mercury, tin, copper, iron, manganese, zinc, chromium, selenium and magnesium) were determined using inductively coupled plasma (ICP)-optical emission spectrometry (ICP-OES), ICP-sector field-mass spectrometry (ICP-sf-MS) and hydride generation (HG)-ICP-OES techniques. The results of the present study showed no heavy metal accumulation in any of the plants. Cd, Pb, Hg and Sn were found only in trace concentrations significantly below the global limits. This indicates the possibility of a safe use of these medicinal plants. Elevated chromium concentrations were found in those phytopharmaca which are employed for the treatment of diabetes mellitus in Sudanese traditional medicine. Cr was detected in the same range as in other plants reported to be applied for diabetes mellitus treatment. Aside from these medicinal plants, some others were identified which could be potential sources for providing reasonable amounts of Cr, Zn, Mn, Se and Mg for the treatment of diabetes mellitus, smooth muscle relaxation and/or against gastro-intestinal cramps.
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