| 李彩云，康 健.超声辅助制备红花籽油微胶囊[J].中国油脂,2017,42(01):.[LI Caiyun，KANG Jian.Ultrasound-assisted preparation of safflower seed oil microcapsules[J].China Oils and Fats,2017,42(01):.] |
| 超声辅助制备红花籽油微胶囊 |
| Ultrasound-assisted preparation of safflower seed oil microcapsules |
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| DOI： |
| 中文关键词: 红花籽油 微胶囊 喷雾干燥 制备 |
| 英文关键词:safflower seed oil microcapsules spray drying preparation |
| 基金项目: |
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| 摘要点击次数: 957 |
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| 中文摘要: |
| 微胶囊化不仅可以很好地保持红花籽油的风味、增强其氧化稳定性，还可以起到缓释的作用，更充分合理地体现物质的营养价值。以同种壁材配方制备微胶囊乳液，分别进行喷雾干燥和冷冻干燥，测定微胶囊的包埋率并观察其形态，从而选择较优的干燥方法，即喷雾干燥法。设计4种壁材配方以喷雾干燥法制备红花籽油微胶囊，测定包埋率及微胶囊总油含量。经60 d后测定包埋率、氧化程度及微胶囊总油含量，并以扫描电镜观察形态，确定包埋效果，选取最佳包埋壁材配方。以超声法进行均质，离心分离法测其乳化稳定性，用正交试验法确定最佳均质条件。结果表明：鲜蛋清、麦芽糊精1∶1为壁材配方制备的微胶囊形态最好，60 d后红花籽油包埋率、过氧化值分别为96.07%、4.48 mmol/kg；适宜工艺参数为芯壁比1∶4、超声功率200 W、超声时间10 min、超声温度40℃、进风温度190℃、出风温度60℃、载量300 mL/h。 |
| 英文摘要: |
| Microencapsulation of safflower seed oil can not only keep its flavor well, enhance its oxidation resistance,but also has slow release effect and reflect the nutritional value of the material reasonably. Microcapsule emulsion was prepared with different wall material formula, then processed by spray drying and freeze-drying respectively, and the embedding rate of each microcapsule was determined and the morphology was observed, then spray drying was chosen as a better drying method. Using four kinds of wall material formula, safflower seed oil microcapsules were prepared with spray drying, and the embedding rate and total oil content were determined. After 60 d, the embedding rates, oxidation degrees and total oil contents of the four microcapsules were determined, and the morphologies were observed by scan electron microscope to determine the embedding effect to select the optimal embedding wall material formula. Homogeneous with ultrasonic method and determination of emulsion stability by centrifugation, the homogeneous conditions were optimized by orthogonal experiment. The results showed that the morphology of microcapsule prepared by wall material formula with ratio of fresh egg white to maltodextrin 1∶1 was the best, the embedding rate and peroxide value of safflower seed oil were 96.07% and 4.48 mmol/kg respectively after 60 d. And the suitable process parameters were obtained as follows: ratio of core material to wall material 1∶4, ultrasonic power 200 W, ultrasonic time 10 min, ultrasonic temperature 40℃, inlet air temperature 190℃, outlet air temperature 60℃, loading capacity 300 mL/h. |
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