非对称富马酸酯类的合成及对西式火腿肠的保鲜效果研究

以马来酸酐为原料先进行C_nH_(2n+1)OH（n＝2～9）醇解合成马来酸单酯，然后催化转型生成富马酸单酯，再与甲醇酯化合成了一系列非对称富马酸酯类，产率85％以上。抗菌效果试验结果表明，非对称富马酸酯类可使微生物的生长适应期（t_0）延长2～8倍，半对数生长期（t_(0.5)）缩短1／3～2／3，相对生长量降低75％以上，生长势（t_(0.5)／t_0）仅为对照的1／28～1／6，并可显著地诱导和促进微生物菌群的自溶作用。

Preparation of methyl n-alkyl famarates and antibacterial effects on han sausage

Methyl n-alkyl ethyls, propyl, butyl, amyl, nonyl famarates were preprated, the yields were over 85%. These diesters could effectively prolong adaptive phose (t) of bacteria from deteriorate ham sausage for 2-8 times, shorten the half logarithmic growth phase (t) to 1/3~2/3, t/to values were only 1/28~1/6 of the control. Methyl n-alkyl famarates significantly inhibited the growth and induced the autolysis of bacteria.