Preparation of polysaccharide fraction from basil seed mucilage and its application as a stabilizer in the Pickering emulsion containing orange peel essential oil
BACKGROUND
This study was conducted to develop and characterize Pickering emulsions stabilized by basil seed mucilage powder (BSMP), incorporating orange peel essential oil at two concentrations (2% and 4%), with the aim of determining their physicochemical properties, stability, and antimicrobial activity against foodborne pathogens.
RESULTS
The recovery yield of BSMP from basil seeds was 8.55 g 100 g−1 and BSMP showed flake-like structure with thin layers, high crystallinity, and glass transition temperature of 192.8 °C. Meanwhile, orange peel essential oil contained 93.247% d-limonene and demonstrated bacteriostatic effects against different Gram-positive and Gram-negative bacteria despite being incapable of destroying them. The resulting Pickering emulsions, particularly at 4% oil concentration, showed excellent stability over 3 weeks with maintained nano-sized particles (d10 of 138.87 nm) and highly negative zeta potential (−52.0 mV) while exhibiting enhanced antimicrobial efficacy against various pathogenic bacteria at lower concentrations compared to pure essential oils.
期刊介绍:
Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.