“Formulation and Evaluation of Nano Emulsion to Enhance the Solubility of Rutin Trihydrate”

Abstract

Introduction: Rutin trihydrate is a chemical with low water solubility, and the purpose of this research is to improve its oral bioavailability by developing and characterizing a nanoemulsion formulation. Nano emulsions were created by ultrasonic emulsification with orange oilas the oil phase, Polysorbate 80 as the emulsifier, and Polyethylene Glycol 200 as the cosurfactant. To enhance the formulation, methods such as component screening, the development of pseudo-ternary phase charts and thermodynamic stability studies were used.With a tiny droplet size (58.0 ± 0.27 nm), high drug content (99.03 ± 2.14%), excellent transmittance (99.78 ± 0.03%), and good zeta potential (−22.9 mV), the optimized nanoemulsion demonstrated physical stability. A considerably greater release rate (79.67 ± 0.23% in 30 minutes) was found in in vitro drug release experiments than in the isolated drug (46.75 ± 0.35%). First-order kinetics that is non-Fickian diffusion mechanism were used to release the drug. According to these results, nanoemulsion technology holds promise for enhancing the oral administration of hydrophobic medications such as rutin trihydrate.

Objectives: This study aims to formulate and evaluate of Nano emulsion of rutin trihydrate to improve the    solubility.

Methods: Dakshin (2015) claims that the ultrasonication method was used to manufacture nanoemulsions.     Add orange oil and rutin trihydrate to a beaker and mix continuously. In a separate beaker, mix the cosurfactant and surfactant (Smix) together while stirring continuously. After that, The oil phase was constantly swirled at 300 rpm as Smix was added progressively. The oil and smix solution mixture was then gradually mixed with the aqueous phase while being constantly swirled at 600 rpm. After creating a nanoemulsion with an ultrasonic probe sonicator, the coarse emulsion was sent through a high-speed homogenizer set to 1700 rpm. Since the sample could be harmed by probe sonication,All of the pre-emulsion samples were maintained in a cold bath during the experiment to lessen the ultrasonic thermal effect of the probe sonicator. The nanoemulsion preparation schematic

Results: The formulated Rutin Trihydrate showed particle size in the desired range, drug content in the Nano emulsion which is consistent across batches, and in vitro drug release studies exhibited immediate drug release. Formulation batch N-6 concluded as our optimized batch, showed best desired properties including high percentage of drug content, % of Transmittance and Immediate drug Release, further nano emulsion were formulated of optimized batch which exhibited in-vitro drug diffusion.

Conclusions: It was concluded that it is possible to optimize the release of Rutin trihydrate for better therapeutic efficacy. Rutin trihydrate prepared using orange oil, PEG 200, Tween 80 was found to be suitable to for the Immediate release formulation and also Rutin trihydrate containing Nano emulsion showed the Immediate release action.