STUDIES ON THE GROWTH, CHARACTERIZATION, PHYSICOCHEMICAL PROPERTIES AND ANTI-BACTERIAL ACTIVITY OF FERULIC ACID CRYSTALS

  • M. Sangeetha Sri Sarada College for Women (Autonomous)
  • R. Mathammal Department of Physics, Sri Sarada College for Women (Autonomous), Salem 636016, India

Abstract

Objective: The main objective of this research is to study the chosen Ferulic acid for pharmaceutical application through crystal growth technique. The interest of growing crystals helps in studying the physical and chemical properties of the title compound. The computational method provides a detailed interpretation of the compound under study.

Methods: Crystallization from solution is a very crucial process in the manufacture of active pharmaceutical ingredients (APIs). Ferulic acid (FA) corresponds to monohydroxylatedcinnamic acid. The biological efficiency of this kind of phenolic systems is expected to be dose-and structure-dependent, which renders the studies for the understanding of their multi-functional biological action. In the present work, ferulic acid crystals were grown using slow evaporation technique. The crystalline nature was revealed from the powder x-ray diffraction technique. The functional groups were determined using FTIR and FT-RAMAN spectra and compared with the theoretical data obtained using computational DFT method. Thermal and physicochemical stability of the grown crystal was examined by Thermogravimetric analysis (TGA) and Differential thermal analysis (DTA) studies. The charge transfer within the molecule was studied with the help of Natural Bond Orbital (NBO) analysis. The anti-bacterial activity was carried out for the title compound using disc diffusion method. The test compounds were screened in vitro for their antibacterial activity against two Gram-positive species (B. cereus and B. substilis) and three Gram-negative species (E. coli, P. vulgaris and S. typhi) of bacterial strains by the disc diffusion method.

Results: The grown crystal was pure and crystalline in nature. The functional groups were confirmed by FTIR and FT-Raman analysis. The melting point of the sample was found to be 172 °C. The HOMO-LUMO energy gap was calculated as 3.87eV. The first hyper polarizability was found to be 10.612 x 10-30 esu. The molecular geometry revealed the Cs symmetry of the molecule. NBO analysis confirmed the intramolecular charge transfer from lone pair oxygen atom to π*(C1-C6) and σ*(C17-O19). The compound is dominant for the B. substilis organism which is revealed from the zone of inhibition.

Conclusion: The grown Ferulic acid crystals confirmed to have good anti-bacterial activity and the theoretical study proves the biological activity of the compound.

 

Keywords: Ferulic acid, Crystal growth, PXRD, Anti-bacterial activity

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How to Cite
Sangeetha, M., and R. Mathammal. “STUDIES ON THE GROWTH, CHARACTERIZATION, PHYSICOCHEMICAL PROPERTIES AND ANTI-BACTERIAL ACTIVITY OF FERULIC ACID CRYSTALS”. International Journal of Pharmacy and Pharmaceutical Sciences, Vol. 8, no. 1, Nov. 2015, pp. 121-6, https://innovareacademics.in/journals/index.php/ijpps/article/view/9013.
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