Abelmoschus esculentus is an important medicinal plant belongs to family Malvaceae. It originates from Ethiopia and is widely spread all over tropical, subtropical and warm temperate regions of the world. This research work has been designed to evaluate the antioxidant, antimicrobial and toxicological potential of A. esculentus leaves and seeds. The antifungal and antioxidant components of A. esculentus leaves and seeds were extracted by using four solvent systems (80% methanol, 80% ethanol, 100% methanol and 100% ethanol) and leaves presented maximum extract yield (38.1 g/100g DW)in 80% methanolic solvent system. Phytochemical analysis of A. esculentus leaves and seeds extracts performed in terms of total phenolic and total flavonoid contents, showed that 80% methanolic leaves extract offered highest total phenolic contents (31.2 mg GAE/g DW), whereas 80% ethanolic leaves gave maximum total flavonoid contents (41.8 mg CE/g DW). Antioxidant activity was determined by DPPH radical scavenging activity and measure of reducing power. Results revealed that 80% methanolic leaves extract showed highest radical scavenging activity and reducing potential. Antimicrobial activity of A. esculentus leaves and seeds was investigated by Disc Diffusion Method and Minimum Inhibitory Concentration (MIC). Results showed that 80% methanolic extract of leaves exhibited highest antibacterial and antifungal potential against P. multocida (30 mm DIZ) and A. paraciticus (29 mm DIZ), respectively. Cytotoxicity analysis was performed on BHK-21 cell by adopting the MTT assay. The cytotoxicity activity of the 80% methanolic extract of leaves was evaluated by noticing the cell survival percentage (52.5%). Overall results of the present study showed that 80% methanolic leaves extracts of A. esculentus possesses very good antioxidant, antimicrobial and cytotoxic properties.
Fundamental oil of Mentha piperita are perplexing blends detached from sweet-smelling plants which may have antimicrobial, cooling receptor trigger, pesticidal, anticancer, hack, asthma, and use in painkiller, exercises of enthusiasm for the sustenance and corrective enterprises just as in the human well-being field in pharmaceutical. According to the German Commission E monographs, peppermint oil is greatly employed as an antispasmodic in the stomach and intestine in bile channel and for the treatment of peevish entrails disorder, inflammation of the respiratory tract, and aggravation of the oral mucosa. Remotely, M. piperita has been employed for myalgia and neuralgia. As indicated by German Commission E, M. piperita may likewise go about as a carminative, disinfectant, and pectolytic, having soothing activity. Enteric-covered peppermint oil containers (Colpermin) are mostly employed as an orally controlled antispasmodic premedication in the study of large intestine.
Nanotechnology is involved in the diagnosis and treatment of infectious and inflammatory diseases. It has shown a good role in regenerating, restoring and repairing damaged body parts, such as the heart, lungs and blood vessels. Nanoparticles (NPs) are helpful in osteoblasts formation and also used in the treatment of bone inflammation, skin infections, tuberculosis (TB), human immunodeficiency virus (HIV), Parkinson’s disease, atherosclerosis, cardiovascular and pulmonary diseases. They also assist the anti-inflammatory drugs in penetrating the skin. Platinum nanoparticles (NP) are used in bone allograft and dentistry while silver NPs possess an excellent potential against viruses, fungi and bacteria. For diagnostic purposes, nanoparticles are mostly used in the form of nanorobots, microchips and biosensors. Quantum dots give information about the tumor; the gold nano-particles are ideal to detect the antibodies of hepatitis and also for RNA and DNA delivery. Nanomaterials play an important role in the management of plant diseases and the activation of their defense mechanisms. The NPs of copper and silver are directly toxic to microorganisms while those of zinc, silicon, manganese, copper and boron have a function in host defense as a fertilizer and alter the nutritional status of the crop. Enzyme-based biosensors coated with Ti, Cu, Ag or Au-NPs greatly enhance the sensitivity of diagnostic probes for the detection of plant infections. The nano-Zn products have been effectively used to control viral, fungal, phytoplasma or bacterial diseases in crop plants. Nanoparticles are also used in packing edible food films.
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