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| 大扁杏杏仁油微胶囊的制备及品质研究 |
| Preparation and quality determination of microcapsules of almond oil from Prunus armeniaca Linn. |
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| DOI：10.12166/j.zgyz.1003-7969/2020.06.016 |
| 中文关键词: 大扁杏 杏仁油 微胶囊 喷雾干燥 制备 品质 |
| 英文关键词:Prunus armeniaca Linn. almond oil microcapsule spray-drying preparation quality |
| 基金项目:中央高校科技成果转化培育项目（GK201906007） |
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| 中文摘要: |
| ：以大豆分离蛋白（SPI）和麦芽糊精（MD）为壁材，大豆卵磷脂为乳化剂，通过喷雾干燥法制备大扁杏杏仁油微胶囊。在单因素实验的基础上，通过响应面法确定大扁杏杏仁油微胶囊制备的最佳工艺条件，并对其品质进行分析。结果表明，大扁杏杏仁油微胶囊制备的最佳工艺条件为芯材与固形物质量比0.35∶ 1、SPI与MD质量比0.30∶ 1、固形物质量浓度0.28 g/mL、大豆卵磷脂质量浓度0.04 g/mL。在最佳工艺条件下，微胶囊包埋率为89.98%。微胶囊化可有效延长大扁杏杏仁油的货架期。所制得的微胶囊产品为乳白色粉末状，颗粒平均粒径为13.87 μm，略有清香，水分含量为246%，溶解度为94.35%，具有一定流动性，菌落总数和大肠菌群数满足GB 7101—2015要求。 |
| 英文摘要: |
| With soybean protein isolate (SPI) and maltodextrin (MD) as coating materials and soybean lecithin as emulsifier, microcapsules of almond oil from Prunus armeniaca Linn. was prepared by spray-drying technology. The response surface methodology was employed to optimize the preparation conditions of almond oil microcapsules on the basis of single factor experiment, and its quality were determined.The results showed that the optimal preparation conditions of almond oil microcapsules were obtained as follows: mass ratio of core material to solid 0.35∶ 1, mass ratio of SPI to MD 0.30∶ 1, mass concentration of solid 0.28 g/mL and mass concentration of soybean lecithin 0.04 g/mL. Under these conditions, the microcapsule embedding rate was 89.98%. Microencapsulation could effectively prolong the shelf life of almond oil. The product was milky white powder with a particle size of 13.87 μm and light fragrance.The water content and solubility of the product were 2.46% and 94.35% respectively, and it had certain liquidity. The aerobic plate count and coliforms count met the requirement of GB 7101—2015. |
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