Abstract: Cinnamon extract was prepared by steam distillation from cinnamon,and its antibacterial effect was studied for developing the cleanser essence.The antibacterial effects of cinnamon extract on colibacillus and airborne bacteria were determined by bacteriostatic test,and the recipe of cleanser essence was optimized with detergency and antibacterial rate as indicators.Results show that cinnamaldehyde mass fraction of 758 and 75.8 mg/kg of cinnamon extract is significant,and they show certain antimicrobial activity on colibacillus and airborne bacteria.The optimized cleanser essence formulation is as follows:the mass fraction of cinnamon extract is 15%,the mass fraction of surfactants fatty alcohol polyoxyethylene ether is 6%,dodecyl benzene sulfonate is 8%,and fatty alcohol polyoxyethylene ether sulfate is 9%.Compared with the commercially available cleanser essence,the cleanser essence containing 15% cinnamon extract has stronger antibacterial effect.

Key words: cleanser essence, cinnamon, extract, antibacterial, detergency