V_E-β-环糊精包络物抗光敏和超声辐射稳定性研究  

Study on the stabilization of anti-photosensitivity and ultrasonic irradiation for vitamin E and its inclusion compound by β-cyclodextrin

作　　者：欧阳玉祝[1] 麻成金[1] 余佶[1] 黄群[1] 

机构地区：[1]吉首大学食品科学研究所,吉首416000

出　　处：《食品科技》2006年第11期62-65,共4页Food Science and Technology

基　　金：湖南省教育厅资助课题(02C003)

摘　　要：用β-环糊精对VE进行包络,制备了VE-β-环糊精包络物,考察了VE及其包络物对紫外光和超声波辐射以及KClO3氧化的稳定性。实验结果表明,用365nm紫外光常温辐射7h,在pH值为5、7、9、11时,VE及其包络物的吸光度分别增大了4.3%、4.82%、7.24%、7.07%和3.79%、3.69%、5.7%、5.52%。在40℃、60℃、80℃温度下,用40kHz超声波辐射6h,VE及其包络物的吸光度分别增大4.65%、4.98%、8.45%和3.91%、3.07%、6.61%。用1mL0.1mol/LKClO3反应7h,VE及其包络物的吸光度分别增大了9.99%和4.72%。Inclosing the vitamin E with β-cyclodextfin got vitamin E-β-cyclodextrin inclusion compound. The stabiliazation on the ultraviolet light, the ultrasonic radialization and the oxydation of KClO3 for vitamin E and its inclusion compound by β-cyclodextrin is investigate. The results shown that under the radialization by UV light at the wavelength of 365nm for 7 hours and the pH value are 5, 7, 9, 11separately, the absorbency of vitamin E and inclusion compound are correspondingly increased 4.30%, 4.82%, 7.24%, 7.07% and 3.79%, 3.69%, 5.70%, 5.52% respectively. Under the ultrasonic radialization at the frequency of 40kHz for 7 hours and the temperatures are 40℃, 60℃, 80℃ separately, the absorbency of vitamin E and inclusion compound are correspondingly increased 4.65%, 4.98%, 8.45% and 3.91%, 3.07%, 6.61% respectively. Moreover, in l mL of 0.1mol/L KClO3 solution for 7 hours, the absorbency of the vitamin E and inclusion compoud are increased 9.99% and 4.72% respectively.

关 键 词：VE Β-环糊精包络物 超声 辐射 

分 类 号：TS201[轻工技术与工程—食品科学]