Advances in Bioscience and Biotechnology · 2019 · 23 citations · 23 references
Life SciencesBiochemistryBiotechnologyEnzymologyNanobiotechnologyPlant BiotechnologyAntioxidant DefenseBioinorganic ChemistryEnzyme InhibitionMedicinal PlantsPhytochemical EnhancementPlant Natural Product BiosynthesisAntioxidant Capacity EnhancementBioactive Plant CompoundsCrude Extract PreparationExtractNanoparticlesOxidation-reduction PotentialPlant Extract AntioxidantsUrease Activity
Objective: Evaluating the bio-reducing activity and various potential, annotates the biological entitties of Fagonia cretica. Method: By fractionating the crude extract with different ethanol-water fraction mixture. This substantiates the reduction potential for the biological synthesis of AgNPs, its antioxidant, anti-urease and anti-Tyrosinase activity. Results: UV-visible spectra confirm the bio-reducing potential for Ag NPs with the optimized 50% ethanol-water fraction mixture. Transmission electron microscopy (TEM) confirmed the round shaped AgNPs with an average size of 16 nm in optimized 50% fraction mixture. Further evaluating Ethanol-water fraction with 90% and 70% of plant extract showed more potentials for Anti-Tyrosinase and Anti-urease activity. Moreover, diluted 30% fraction exhibits two folds higher Anti-oxidant and Anti urease activity. Conclusion: Overall, this work showed that 50% Ethanol-water fraction has potentially active molecules (among all fractions) primarily involved in bio-reducing potential of Ag NPs and enzymatic assay while 90% mixture proved to be least active. This study suggested electing the optimum mixture fraction of 50% ethanol-water in order to screen the bioactive compounds and to inculcate their activity status for clinical trials.
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Preliminary screening of some tropical plants for anti-tyrosinase activity
N Baurin, Éric Arnoult, Thomas Scior et al. · Journal of Ethnopharmacology · 2002 · 155 citations
Hao Dang, Murtaza Hasan Weiwei Meng, Haiwei Zhao et al. · Journal of Nanoparticle Research · 2014 · 128 citations