摘要
以壳聚糖粒子为载体,VD3为模型物,采用超临界二氧化碳注入法制备VD3-壳聚糖复合物。采用紫外测试法考察过程参数压力、温度以及时间对VD3在VD3-壳聚糖复合物中负载量的影响。结果表明:随着压力和温度的增加,VD3负载量均为先增大后减小;当压力20MPa、温度35℃时,VD3负载量达到最大值;当温度和压力一定时,时间由1h增至3h,VD3负载量也有不同程度的增加。
The impregnation of vitamin D3 into chitosan particles using supercritical CO2 fluid was investigated with respect to the effects of pressure,temperature and length of impregnation time evaluated by UV-vis spectroscopy.The results showed that with increasing pressure,VD3 impregnation amount initially increased and then decreased;as temperature increased,an identical change pattern in VD3 impregnation amount was observed.VD3 impregnation amount reached its maximum value under the conditions of 20 MPa and 35 ℃.Increasing length of impregnation time from 1 to 3 h resulted in a higher VD3 impregnation amount when pressure and temperature kept unchangeable.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2010年第12期21-24,共4页
Food Science
基金
国家"863"计划项目(2007AA10Z350)
