School of Biotechnology and Food, Anyang Institute of Technology, Huanghe Road, Anyang 455000, China.
Carbohydr Polym. 2013 Jan 2;91(1):385-9. doi: 10.1016/j.carbpol.2012.08.059. Epub 2012 Aug 24.
Storage stability of astaxanthin/hydroxypropyl-β-cyclodextrin (HPCD) inclusion complex was evaluated and which was compared with native astaxanthin. The storage stability of astaxanthin was enhanced after included in HPCD under 4 °C and 25 °C storage conditions. Antioxidant activity of astaxanthin/HPCD inclusion complex was also assayed using ascorbic acid as a control sample. The reducing power and DPPH radical scavenging activity of native astaxanthin were lower than ascorbic acid, while which of the complex were higher at low concentration for the good water solubility. The hydroxyl radical scavenging activities of astaxanthin and astaxanthin/HPCD complex far outclassed that of ascorbic acid, and the activity of the complex was a little lower than that of the native astaxanthin.
虾青素/羟丙基-β-环糊精（HPCD）包合物的储存稳定性进行了评价，并与天然虾青素进行了比较。在 4°C 和 25°C 储存条件下，虾青素包入 HPCD 后，其储存稳定性得到提高。抗氧化活性虾青素/HPCD 包合物也用抗坏血酸作为对照样品进行了测定。还原力和 DPPH 自由基清除活性天然虾青素低于抗坏血酸，而在低浓度下的复合物更高，因为其具有良好的水溶性。虾青素和虾青素/HPCD 复合物的羟基自由基清除活性远远超过抗坏血酸，且该复合物的活性略低于天然虾青素。
