Formulating a recipe for preparing antibacterial soap from Perilla frutescens (L.) Britt leaves

Abstract

Perilla frutescens was a leafy vegetable. The leaves had many biologically active substances such as: anti-cancer, anti-oxidant, anti-inflammatory, antibacterial. Therefore, Perilla frutescens was used in traditional medicine. However, the research on using Perilla frutescens for skin care products was limited. The objective of the study was to use the antibacterial activity of Perilla frutescens in soap making. By the experimental method, the natural antibacterial soap formulation was determined with ingredients including NaOH, coconut oil, 0,5% Perilla frutescens leaf extract and 10% glycerol. The Perilla frutescens soap had the ability to inhibit 97% of S. aureus and E. coli at a concentration of 500 ug/mL after 60 seconds of touching. The results of Perilla frutescens soap product analysis showed that with pH 6.2, the amount of fatty acid 65,16%, free fatty acids 0,26%, the degree of foam was 75% after 15 minutes, also there was negative free alkali, brown color, classic soapy smell, solid structure, smooth and no cracks. The results of this study showed that the surveyed criteria of this soap met the TCVN 2224:1991.