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| 蒜头果油微胶囊制备工艺优化及性质分析 |
| Preparation process optimization and properties of Malania oleifera oil microcapsules |
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| DOI： |
| 中文关键词: 蒜头果油 微胶囊 喷雾干燥 理化性质 体外模拟消化 |
| 英文关键词:Malania oleifera oil microcapsule spray-drying physicochemical property in vitro simulated digestion |
| 基金项目:广西研究生教育创新计划项目(GKYC202012)；国家自然科学基金委员会资助项目地区科学(21662003)；广西壮族自治区中青年教师基础能力提升项目(KY2016Y B250)；广西糖资源绿色加工重点实验室主任基金(GXTZY 202005)；大学生创新训练计划项目(202010594214)；广西科技大学博士(校科博14Z06) |
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| 中文摘要: |
| 以阿拉伯胶和麦芽糊精为复合壁材，采用喷雾干燥法制备蒜头果油微胶囊。通过单因素试验，考察固形物含量、乳化剂添加量、壁材比、芯壁比、进风温度、进料量对蒜头果油微胶囊包埋率的影响，采用Box-Behnken设计响应面试验优化蒜头果油微胶囊的制备工艺，并采用扫描电子显微镜（SEM）、粒度分析仪、热重分析仪和体外模拟消化等对蒜头果油微胶囊的性质进行了分析。结果表明：蒜头果油微胶囊最佳制备工艺条件为乳化剂添加量1%、阿拉伯胶与麦芽糊精质量比4∶ 3、芯壁比1∶ 4、固形物含量16%、进风温度160 ℃、进料量4 mL/min，在最佳条件下蒜头果油微胶囊的包埋率为76.92%；蒜头果油微胶囊呈较光滑球形，其结构完整、粒径均一，且具有良好的流动性、热稳定性、分散性；体外模拟胃肠道消化后，微胶囊芯材几乎完全释放。蒜头果油微胶囊化有利于保护蒜头果油的有效成分，提高其消化吸收效果，扩大其应用范围。 |
| 英文摘要: |
| The Malania oleifera oil microcapsules was prepared via the spray-drying using gum acacia and maltodextrin as wall materials. The effects of solid content, emulsifier dosage, gum acacia/maltodextrin ratio, core/wall ratio, inlet air temperature and feed flow rate on microencapsulation efficiency were investigated by single factor experiment. The selected key parameters were optimized using response surface methodology with Box-Behnken experimental design. The SEM, particle size analyzer, thermogravimentric analyzer, and in vitro simulated digestion etc. were used to analyze the properties of microcapsules. The results showed that the optimal conditions were obtained as follows: solid content 16%, emulsifier dosage 1%, gum acacia/maltodextrin ratio 4∶ 3, core/wall ratio 1∶ 4, inlet air temperature 160 ℃ and feed flow rate 4 mL/min. Under these conditions, the microencapsulation efficiency was 76.92%. The Malania oleifera oil microcapsules had integrious structure, uniform particle size, good fluidity, dispersibility and thermal stability. The encapsulated oil was released from microcapsules after simulated gastrointestinal digestion. Microencapsulation of Malania oleifera oil could protect the effective components in Malania oleifera oil, improve its digestion and absorption effect, and expand its application range. |
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