Assessment of in-vitro proximate composition and mineral analysis of different combinations of moringa (Moringa oleifera) leaves and ginger (Zingiber officinale) rhizomes as herbal supplements in the possible prevention and management of hypertension

Hypertension is one of the most common causes of cardiovascular diseases (CVDs) and is among the leading causes of death globally. Recent reports revealed that hypertension and related cardiovascular complications are gaining more importance in sub-Saharan Africa, especially in Nigeria. Plant herbs such as moringa (Moringa oleifera) leaves and ginger (Zingiber officinale) rhizomes are popular folklore for the management of hypertension, but limited scientific information is available on their possible synergistic effect in militating against the scourge of high blood pressure. This study sought to evaluate the effect of combination of moringa (Moringa oleifera) leaves and ginger (Zingiber officinale) root in different proportions. The proximate composition and mineral analysis of these combinations was assessed. Sample A contained 100% powdered moringa leaves, sample B contained 100% powdered ginger rhizomes, sample C contained 50% powdered moringa leaves and 50% powdered ginger rhizomes, sample D contained 25% powdered moringa leaves and 75% powdered ginger rhizomes, while sample E contained 75% powdered moringa leaves and 25% powdered ginger rhizomes. The proximate composition of moringa leaves and ginger rhizome showed that moringa had a higher percentage of moisture, fat and carbohydrate than ginger while ginger had a higher percentage of protein, fibre and ash. Upon combination at different proportions, a number of positive synergy was observed. The different combinations of the two herbal plants show increased percentage of the proximate compositions and minerals compared to the lower individual percentage in nearly all parameters assessed. This can be harnessed to achieve the desired nutrient and nutraceuticals aimed at managing hypertension.