中药材提取物复配液对鸡蛋的保鲜研究

Study on preservation effect of extracts of Chinese herbal medicines on eggs

以鸡蛋失水率和鸡蛋内容物细菌总数为响应值,采用Box-Behnken Design设计分析和优化中草药提取物、聚乙烯醇与单甘脂不同水平对鸡蛋新鲜度的影响。结果表明保鲜液最佳配比为:中草药提取物0.45 g/m L、聚乙烯醇10.68 g/m L、单甘脂2.05 g/m L。验证实验表明,鸡蛋经保鲜液处理后在25℃、相对湿度60%条件下贮藏30 d后失水率为5.84%,细菌总数为4.54 lgcfu/g,哈夫单位为55.1,保鲜效果显著优于对照组。

Box- Behnken Design was employed to analyze and optimize the effect of Chinese herbal medicine extracts,PVA and monoglyceride on the fresh- keeping efficiency of eggs with water loss rate and the total bacteria colonial as responses. The results showed that optimal ratio were Chinese herbal medicine extracts0.45 g / m L,PVA 10.68 g / m L and monoglyceride 2.05 g / m L.Under the conditions,the water loss rate,total bacterial colonial and HU of coated eggs was 5.84%,4.54 lgcfu / g and 55.1 respectively after 30 days storage at 25 ℃,RH60%,which was significantly better than the control group.