Abstract: Sucrose methyl fumarate(SMF) was synthesized based on the structure- activity relationship of preservatives, mold preventives and structure characteristics of emulsifier. The anti-microbial experiments showed that SMF with degree of esterification(DE) 5.5 had good anti-microbial activity that its minimum inhibition concentrations were lower than sorbic acid’s and close to dimethyl fumarate’s(DMF). The half-life value of SMF was the highest among the three experimental preservatives. The results showed that SMF had a good prospect of development because of its excellent anti-metabolism. The emulsifying experiments showed that surface activity of SMF of DE 5.5 was close to span-80, with HLB value as 6.8, CMC 0.7g/L and surface tension 28.5mN/m of 0.3% mass concentration. The characteristics of SMF recombinated with other surfactants and the application in food industry and daily chemicals industry would need further research.

Key words: sucrose methyl fumarate, anti-microbial activity, emulsion character