IN VIVO ANALYSIS OF THE EFFECT OF NANOSTRUCTURED LIPID CARRIER-BASED GEL OF MULBERRY ROOT EXTRACT AGAINST ULTRAVIOLET LIGHT
Keywords:Mulberry root, Morus alba L, Sunscreen, Nanostructured lipid carrier, Erythema value
Objective: This study aimed to analyze the in vivo anti-ultraviolet (UV) activity of nanostructured lipid carrier (NLC) of mulberry extract on six New
Methods: Mulberry roots were treated with 96% ethanol using a maceration-ultrasonication method, and the extract was transformed into NLCs
using the solvent evaporation method. The NLC was characterized for particle size and polydispersity index and zeta potential. The morphology of
nanoparticles was examined using transmission electron microscope and subsequently in the NLC-based gel preparation. The gel was evaluated in vivo
for anti-UV activity on male rabbits in three treatment groups: Positive control, sample gel, and negative control (exposed to UV light for 6 h). The
anti-UV activity was scored as a skin erythema response using DermalabÂ®, and the results were analyzed using Kruskalâ€“Wallis and Mannâ€“Whitney
Results: The particle size, polydispersity index, and zeta potential of the NLC were quantified as 203.2 nm, 0.264, and âˆ’38.7 mV, respectively. The
viscosity of the gel was 42,500 cps, with pseudoplastic thixotropic flow properties including the spreading ability, particle size 5156.81 mm, and
pH 5.92, respectively. The anti-UV activity was determined as 0.22, 1.44, and 2.22 for the positive control, NLC-based gel, and negative control groups,
Conclusion: The anti-UV activity of NLC-based gel of mulberry root extract was very small on areas where erythema had formed and differed
significantly between the positive and negative control groups (p<0.05).
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