单月桂酸甘油酯微乳液抗菌性研究

Study on antimicrobial effect of glycerol monolaurate microemulsion

单月桂酸甘油酯(GML)作为一种食品级乳化剂也具有一定抗菌作用。本研究将GML与其它配合物复合,使其抗菌性得到不同程度提高,通过Box–Behnken Design–响应面优化分析设计,得出抗菌性最佳GML乳化液配方为:以浓度为50μg/mL 10 ml GML为基质,山梨酸钾加入量0.050 g、吐温–80加入量0.022 g、SE–15加入量0.030 gS、SL加入量0.025 g,在此乳化液中加入盐、乙醇和水制成GML微乳液。实验证明,其具有优良抗菌效果,应用到馒头制作中也得到良好防霉保鲜效果,为GML在食品中应用提供新的思路。

Glycerol Monolaurate（GML） is widely used as an emulsifier in food industry.This paper discussed the antimicrobial effect of GML.Some additives was added to improve the antimicrobial effect of GML.The best formula was obtained by Box–Behnken Design–Response surfaced optimization：potassium sorbet amount 0.050 g,twain–80 0.022 g,SE–15 0.030 g,and SSL 0.025 g added in 10 mL GML solution（50 μg/mL）.Salt、ethanol and water was added to prepare GML microemulsion.And the antimicrobial effect of GML microemulsion was even better.The application in steamed bread also showed the good antimicrobial effect of GML microemulsion.