以β胡萝卜素包埋率为指标,采用超声法用β-环糊精包合β-胡萝卜素。通过单因素和正交实验确定的最佳工艺条件为:超声功率为300W、n(β胡萝卜素)∶n(β-环糊精)=1∶4,超声时间为40min。用显微镜观察和X射线衍射分析对包合物进行了验证,并对包合前后的保留率进行了比较测定,结果表明β-胡萝卜素的保留率提高了25.5%。 Β-carotene embedding rate as an indicator, the use of ultrasound β-cyclodextrin inclusion β-carotene. The optimum conditions were determined by single factor and orthogonal experiments: ultrasonic power is 300W, n (β-carotene): n (β-cyclodextrin) = 1: 4, ultrasonic time is 40min. The inclusion complex was verified by microscopic observation and X-ray diffraction analysis, and the retention rate before and after inclusion was compared. The results showed that the retention rate of β-carotene increased by 25.5%.