蒲公英多酚的提取及在草莓保鲜中的应用  

Extraction of Dandelion Polyphenols and Its Application in Strawberry Preservation

作　　者：郎伍营 曾培培 王晨曦 蒲桥 李江涛 LANG Wuying;ZENG Peipei;WANG Chenxi;PU Qiao;LI Jiangtao(College of Biomedicine and Food Engineering,Shangluo University,Shangluo,Shaanxi 726000,China;Grain Engineering Technology Research Center of Shangluo City,Shangluo University,Shangluo,Shaanxi 726000,China;Shangluo Lufuran Animal Husbandry Technology Co.,Ltd.,Shangluo,Shaanxi 726000,China)

机构地区：[1]商洛学院生物医药与食品工程学院,陕西商洛726000 [2]商洛学院商洛市粮食工程技术研究中心,陕西商洛726000 [3]商洛绿富然畜牧科技有限公司,陕西商洛726000

出　　处：《陕西农业科学》2025年第2期30-34,共5页Shaanxi Journal of Agricultural Sciences

基　　金：陕西省技术创新引导专项(2024ZC-YYDP-89);商洛学院科学与技术研究基金项目(20SKY011)。

摘　　要：为研究蒲公英多酚的利用价值以及其在食品行业中的开发利用,本研究以整株蒲公英为原料,将提取时间、料液比、提取温度、乙醇浓度作为单因素,在单因素试验的基础上,采用正交试验法对蒲公英多酚物质溶剂浸提法提取工艺进行优化,并将提取的多酚物质用于草莓涂膜保鲜。研究结果表明:蒲公英中多酚物质提取的最优工艺为提取时间30 min、料液比1∶40、提取温度60℃、乙醇浓度50%,在此条件下蒲公英多酚得率为1.53%。草莓被多酚涂膜剂涂膜贮藏8 d后感官评分为6分、可滴定酸度为0.72%、腐败率为47.02%,结果表明蒲公英多酚具有较强的防腐保鲜能力。To explore the utilization value of dandelion polyphenol and their potential in the food industry,this study used the whole dandelion as the raw materials.Extraction time,material-to-liquid ratio,extraction temperature,and ethanol concentration were selected as the single factors.Based on single-factor experiments,the extraction process of dandelion polyphenols was optimized using the orthogonal experimental design,and the extracted polyphenols were applied in strawberry film coatings for preservation.The results showed that the optimal extraction conditions for dandelion polyphenols were an extraction time of 30 minutes,a material-to-liquid ratio of 1∶40,an extraction temperature of 60℃,and an ethanol concentration of 50%,which the polyphenol yield reached 1.53%.Strawberries coated with the polyphenol film were stored for 8 days,which the sensory score was 6,titratable acidity was 0.72%,and spoilage rate was 47.02%.These findings demonstrate that dandelion polyphenols possess strong preservative and freshness-preserving properties.

关 键 词：蒲公英多酚 草莓 保鲜 

分 类 号：S436[农业科学—农业昆虫与害虫防治]