Nootropic Activity of Calyces of Hibiscus Sabdariffa Linn

Conversion of Sorrel (Hibiscus Sabdariffa) Calyces To Glucose

The utilization of agrowaste for the production of bioethanol has attracted worldwide attention as a strategy for reducing global warming and improving global energy security. Sorrel drink, popularly known as “zoborodo” in Nigeria is a non-alcoholic drink, which is obtained from the calyces of Hibiscus sabdariffa, by solid-liquid extraction process, leaving the calyces pulp as the raffinate. Th...

Antimicrobial Activity of Hibiscus Sabdariffa (flowers)

Mechanisms of the anti-hypertensive effect of Hibiscus sabdariffa L. calyces.

Previous studies have demonstrated the anti-hypertensive effects of Hibiscus sabdariffa L. (HS) in both humans and experimental animals. To explore the mechanisms of the anti-hypertensive effect of the HS, we examined the effects of a crude methanolic extract of the calyces of HS (HSE) on vascular reactivity in isolated aortas from spontaneously hypertensive rats. HSE relaxed, concentration-dep...

Antitumour Activity of Hibiscus tiliaceus Linn. Roots

The aim of this study was to evaluate antitumour activity of the roots of Hibiscus tiliaceus Linn. against Dalton’s Ascitic Lymphoma (DAL) in Swiss albino mice. A significant enhancement of mean survival time (MST) of H. tiliaceus treated tumour bearing mice was found with respect to control group. H. tiliaceus treatment was found to enhance peritoneal cell counts. When these H. ti...

Toxicity and immunomodulatory activity of fractions of Hibiscus sabdariffa Linn (family Malvaceae) in animal models.

This study evaluated immunomodulatory properties and the sub-acute toxicity profile of two fractions of the aqueous alcoholic extract of the dried calyx of Hibiscus sabdariffa in experimental animals. Immunomodulatory activity was evaluated using red blood cell-induced immunostimulation. The fractions were not found to be toxic after 7-day administration, though there was severe weight loss wit...

Antidiabetic Effect of Roselle Calyces Extract (Hibiscus Sabdariffa L.) in Streptozotocin Induced Mice

Diabetes mellitus is a symptom that can be characterized by chronic hyperglycemia and impaired metabolism of carbohydrates, fats and proteins associated with the lack of insulin secretion or insulin action both in absolute and relative terms. Treatment with drugs distributed on the market either relatively more expensive because of its use in the long term or have considerable side effects. Pre...