将肉桂醛谷氨酸、亮氨酸和天冬氨酸3种氨基酸进行反应，制备出3种水溶性肉桂醛-氨基酸钾盐席夫碱。并采用傅里叶红外光谱（Fourier transform infrared spectroscopy ，FTIR）和核磁共振氢谱（1 H nuclear magnetic resonance ，1 H NMR）对肉桂醛-氨基酸钾盐席夫碱的结构进行表征。选取黑曲霉和桔青霉为供试菌种，研究肉桂醛-氨基酸钾盐席夫碱的抑菌性能。结果表明：不同氨基酸钾盐席夫碱具有不同的生物活性，肉桂醛-天冬氨酸钾盐席夫碱的抑菌活性为最强，而肉桂醛-亮氨酸钾盐席夫碱为最弱。%Cinnamaldehyde-potassium salt of amino acid Schiff bases were prepared by three amino acids and cinnamaldehyde .Cin-namaldehyde-potassium salt of amino acid Schiff bases were identified by Fourier transform infrared spectroscopy (FTIR) and 1 H nuclear magnetic resonance (1 H NMR) .The antimold activity of the compounds to Aspergillus niger and Penicillium citrinum was studied .The results show that all the cinnamaldehyde-potassium salt of amino acid Schiff bases are effective against A .niger and P .citrinum .Different cinnamaldehyde-potassium salt of amino acid Schiff bases present different antimold activity ,the bioc-ativity of cinnamaldehyde-potassium aspartate Schiff base is the strongest ,while the biocativity of cinnamaldehyde-potassium leu-cine Schiff base is the weakest .
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