Chitosan nanocomposite incorporated Satureja kermanica essential oil and extract: Synthesis, characterization and antifungal assay

Int J Biol Macromol. 2022 Nov 30:221:1356-1364. doi: 10.1016/j.ijbiomac.2022.09.044. Epub 2022 Sep 14.

Abstract

The present study reports the design, synthesis, and characterization of nanoencapsulated Satureja kermanica essential oil/extract by chitosan biopolymer (SKEO-CSN)/(SKEX-CSN) for the antifungal efficacy against Fusarium oxysporum, Alternaria alternata, Botrytis cinerea, Sclerotinia sclerotiorum, Rhizoctonia solani, and Pythium aphanidermatum. The prepared SKEO-CSN and SKEX-CSN were characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and X-ray diffraction analysis (XRD). GC-Mass analysis was done to identify Satureja kermanica essential oil chemical compounds (SKEO). Thirty-five different components were detected from GC-MS analysis. Thymol (46.54 %), and Carvacrol (30.54 %) were demonstrated as major compounds. Antifungal studies showed that the SKEO-CSN and SKEX-CSN formulation effectively inhibit fungal growth more than free SKEO and SKEX. According to the results, SKEO-CSN and SKEX-CSN provide a wide range of promising antifungal effects and can be applied as an efficient green strategy to protect plants from fungus infections.

Keywords: Antifungal; Chitosan; Nanoencapsulation.

MeSH terms

  • Antifungal Agents / chemistry
  • Antifungal Agents / pharmacology
  • Chitosan* / chemistry
  • Chitosan* / pharmacology
  • Nanocomposites*
  • Oils, Volatile* / chemistry
  • Oils, Volatile* / pharmacology
  • Plant Extracts / chemistry
  • Satureja* / chemistry

Substances

  • Oils, Volatile
  • Antifungal Agents
  • Chitosan
  • Plant Extracts