Li Liang, Zhang Wenhui, Peng Jian, Xue Bei, Liu Zhendong, Luo Zhang, Lu Deze, Zhao Xiaorui
Food Science College, TAAHC-SWU Medicinal Plants Joint Research and Development Centre, Tibet Agriculture & Animal Husbandry University, Nyingchi 860000, China.
Institute of Agriculture Products Development and Food Science Research, Tibet Academy of Agriculture and Animal Science, Lhasa 850032, China.
Materials (Basel). 2020 Mar 6;13(5):1192. doi: 10.3390/ma13051192.
Highland barley starch (HBS), as a carbohydrate shell material with excellent performance in microcapsule applications, has rarely been reported. In the present study, three different microcapsules (CEO-SWSM, CEO-PM, and CEO-UM) were synthesized successfully via saturated aqueous solution method, molecular inclusion method and ultrasonic method, respectively, using HBS as shell material coupled with cinnamon essential oil (CEO) as the core material. The potential of HBS as a new shell material and the influence of synthetic methods on the performance of microcapsules, encapsulation efficiency (EE), yield, and release rate of CEO-SWSM, CEO-PM, and CEO-UM were determined, respectively. The results confirmed that CEO-PM had the most excellent EE (88.2%), yield (79.1%), as well as lowest release rate (11.5%, after 25 days of storage). Moreover, different kinetic models were applied to fit the release process of these three kinds of microcapsules: CEO-SWSM, CEO-PM, and CEO-UM had the uppermost R-squared value in the Higuchi model, the zero-order model, and the first-level model, respectively. Over all, this work put forward a novel perspective for the improved encapsulation effect of perishable core materials (e.g., essential oil) for the food industry.
青稞淀粉(HBS)作为一种在微胶囊应用中具有优异性能的碳水化合物壳材,鲜有报道。在本研究中,分别采用饱和水溶液法、分子包合法和超声法,成功合成了三种不同的微胶囊(CEO-SWSM、CEO-PM和CEO-UM),以HBS为壳材,肉桂精油(CEO)为芯材。分别测定了HBS作为新型壳材的潜力以及合成方法对微胶囊性能、包封率(EE)、产率和CEO-SWSM、CEO-PM及CEO-UM释放率的影响。结果证实,CEO-PM具有最优异的包封率(88.2%)、产率(79.1%)以及最低的释放率(储存25天后为11.5%)。此外,应用不同的动力学模型拟合这三种微胶囊的释放过程:CEO-SWSM、CEO-PM和CEO-UM分别在Higuchi模型、零级模型和一级模型中具有最高的决定系数。总体而言,这项工作为食品工业中易腐芯材(如精油)的改进包封效果提出了新的视角。