菜芙蓉花黄酮微胶囊的制备工艺及其贮藏稳定性  

Preparation process and storage stability of Abelmoschus Manihot(L.)medic flowers flavonoids microcapsules

作　　者：赵斗 杨胜男 刘楠楠 仇燕[1] ZHAO Dou;YANG Shengnan;LIU Nannan;QIU Yan(College of Food Science and Biology,Hebei University of Science and Technology,Shijiazhuang,Hebei 050018,China)

机构地区：[1]河北科技大学食品与生物学院,河北石家庄050018

出　　处：《河北科技大学学报》2024年第5期508-517,共10页Journal of Hebei University of Science and Technology

基　　金：河北省重点研发计划项目(22322801D)。

摘　　要：为提高菜芙蓉花黄酮的贮藏稳定性,扩展其应用范围,以菜芙蓉花黄酮提取液为芯材、β-环糊精为壁材,采用超声辅助包埋-冷冻干燥法制备菜芙蓉花黄酮微胶囊,通过单因素和响应面试验确定微胶囊制备工艺参数,利用扫描电镜、红外光谱和抗氧化活性对其进行表征,并考察不同温度、湿度、光照和氧气贮藏条件对菜芙蓉花黄酮微胶囊保留率的影响。结果表明:黄酮微胶囊最佳制备工艺为超声功率210 W、超声温度56℃、超声时间40 min、芯壁比1.6 mL:1 g,在此条件下制备的微胶囊的黄酮包埋率为96.89%;制备的微胶囊呈无定型玻璃状,红外光谱分析显示菜芙蓉花黄酮被壁材包裹,具有较好的抗氧化能力。微胶囊化能够有效提高菜芙蓉花黄酮的稳定性,可为新型食品天然抗氧化剂的开发应用提供理论依据。In order to improve the storage stability and extend the application range of the Abelmoschus Manihot(L.)medic flowers flavonoids(AMF),A.Manihot flowers flavonoids microcapsules(AMFM)were prepared by ultrasonic-assisted embedding-freeze drying method with the flavonoids extracts of AMF as core material andβ-cyclodextrin as wall material.The preparation parameters of microcapsules were determined by single factor and response surface test,and AMFM was characterized by scanning electron microscopy,infrared spectroscopy and antioxidant activities.The effects of different storage conditions of temperature,humidity,light and oxygen on the retention rate of the microcapsules were investigated.The results show that the optimal preparation process of AMFM is ultrasonic power of 210 W,ultrasonic temperature of 56℃,ultrasonic time of 40 min and core-wall ratio of 1.6 mL∶1 g.Under these conditions,the flavonoid embedding rate of microcapsules was 96.89%.The prepared microcapsules are amorphous glassy solids,and the infrared spectrum analysis shows that the AMF are embedded by the wall material.AMFM has good antioxidant capabilities and can effectively improve the stability of flavonoids.This study provides a theoretical basis for the development of AMF for the application of new food natural antioxidants.

关 键 词：食品添加剂技术 菜芙蓉 黄酮微胶囊 超声辅助包埋 贮藏稳定性 

分 类 号：TS202.1[轻工技术与工程—食品科学]