以“圆脆”鲜枣为试材,对拮抗酵母菌(美极梅奇酵母菌)在其表面的定殖情况进行了研究。结果表明:高的接种浓度(108 cfu/mL)、贮藏环境中高的相对湿度(RH 95%~100%)更利于美极梅奇酵母菌在“圆脆”表面的定殖,其在25℃时定殖能力强于在5℃时;接种病原菌对美极梅奇酵母菌定殖能力有一定影响,特别是在接种病菌24h后再接种美极梅奇酵母菌,其定殖能力显著下降;增效因子能提高美极梅奇酵母菌的定殖能力,尤其是0.2%(w/v)的丙酸钙能显著增强美极梅奇酵母菌在“圆脆”表面定殖能力。 With “Yuancai” fresh dates as test material, the antagonistic activity of yeast (Megi Pseudozygotic yeast) on its surface was studied. The results showed that the high inoculum concentration (108 cfu / mL) and the high relative humidity (95% ~ 100% RH) in storage environment were more favorable for the colonization of the " The colonization ability at 25 ℃ was stronger than that at 5 ℃. Inoculation with pathogens had a certain impact on the colonization ability of Meigeji yeast, especially the inoculation of Meigeqi yeast after inoculation with bacteria for 24h, and its colonization ability was significant Decreased. The synergistic factor could increase the colonization capacity of the yeast in the genus Megi, especially the calcium propionate 0.2% (w / v) could significantly enhance the colonization of the organism ability.