The effect of pH, contact time, dose, and concentration on the adsorption of malachite green over green Mn3O4 was carried out. Carbonyl groups derived from flavonoids or carboxylic compounds were found in the surface of green Mn3O4 nanoparticles.

The X-ray diffraction and N2 isotherm plots confirmed the presence of tetragonal γ-Mn3O4 phase and mesoporous structure, respectively.

The materials were characterized using several physicochemical techniques such as Fourier-transform infrared spectroscopy, X-ray diffraction, Energy-dispersive X-ray spectroscopy, scanning electron microscopy, Raman spectroscopy, and N2 adsorption desorption isotherm measurement. Herein, we developed green Mn3O4 nanoparticles synthesized using natural compounds extracted from Costus woodsonii flowers under an ultrasound-assisted mode. The pollution of organic dyes such as malachite green is one of the globally critical issues, calling for efficient mitigation methods. woodsonii plant and result indicated high polarity solvent (methanol and water) recovered higher bioactive compounds. In short, sequential extraction provides understanding of polarity specificity of C. Overall, methanolic extracts showed the significantly (p ≤ 0.05) highest ascorbic acid content (75.76☑.47 mg/100mL), total phenolic content (249.64☒.83 mg GAE/100g), DPPH free radical scavenging activity (78.76☐.97 %), ferric reducing antioxidant power (22.55☐.96 mg TEAC/g), superoxide anion scavenging activity (46.60☑.57 %) and hydroxyl radical scavenging activity (50.35☐.96 %). Phytochemical screening showed positive presence of flavonoids (all types of extracts), terpenoids (only in methanolic extract) and tannins (except aqueous extract). woodsonii bract, at increasing polarities. Solvents of different polarities (hexane, ethyl acetate, methanol and water) were used to sequentially extract the C. The current study reports the composition, phytochemical and antioxidant properties of red button ginger (Costus woodsonii) using sequential extraction. Costus plant is considered as a medicinal plant especially in therapeutic intervention.

Red button ginger full sun