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林产化学与工业 ›› 2015, Vol. 35 ›› Issue (5): 58-64.doi: 10.3969/j.issn.0253-2417.2015.05.010

• 研究报告 • 上一篇    下一篇

喷雾干燥制备角鲨烯微胶囊的研究

游凤1, 黄立新1,2, 张彩虹1,2, 谢普军1, 张耀雷1   

  1. 1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产 化学工程重点开放性实验室;江苏省 生物质能源与材料重点实验室, 江苏 南京 210042;
    2. 中国林业科学院 林业新技术研究所, 北京 100091
  • 收稿日期:2014-05-30 出版日期:2015-10-25 发布日期:2015-10-24
  • 通讯作者: 黄立新,研究员,博士生导师,研究领域:林特产品深加工及干燥技术;E-mail:l_x_huang@163.com E-mail:l_x_huang@163.com
  • 作者简介:游 凤(1988—),女,湖北黄石人,硕士生,主要从事天然产物深加工的研究工作
  • 基金资助:
    国家林业局 948技术引进项目 (2012-4-12);国家 863计划资助项目(2011AA100802)

Study of Squalene Microcapsule by Spray Drying Technology

YOU Feng1, HUANG Li-xin1,2, ZHANG Cai-hong1,2, XIE Pu-jun1, ZHANG Yao-lei1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.of Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2014-05-30 Online:2015-10-25 Published:2015-10-24

摘要: 以明胶、阿拉伯胶和麦芽糊精复配作为壁材,蔗糖酯和聚氧乙烯脱水山梨醇单油酸酯(吐温-80)为乳化剂,采用超声波乳化-均质-喷雾干燥工艺制备角鲨烯微胶囊产品。对超声波乳化工艺、壁材配比、乳化剂添加量以及喷雾干燥等参数进行了研究,并将优化工艺所制备的产品与冷冻干燥法制备微胶囊进行比较。结果表明,产品的最佳工艺为:角鲨烯3.0 g,吐温-80为0.6 g,经超声波乳化后(功率240 W,时间4 min)与明胶2.0 g,阿拉伯胶2.0 g,麦芽糊精10.0 g,蔗糖酯0.5 g,按料液固体质量分数为3.88%的比例与水混合,在进风温度180 ℃,出风温度105 ℃,喷雾空气流速为1.5 m3/h,进料速率为6 mL/min的条件下进行喷雾干燥。此条件下,角鲨烯微胶囊包埋率92.3%,颗粒呈球形,粒径在12.0 μm左右。喷雾干燥相较于冷冻干燥,所得微胶囊包埋率更高,产品颗粒呈球形,粒径更小,热性能也更加稳定。

关键词: 角鲨烯, 微胶囊, 喷雾干燥, 超声波乳化

Abstract: The microcapsule of squalene was carried out by ultrasonic-assisted emulsion, homogenization and spray drying using mixture of gelatin, arabic gum, maltodetrin as wall material, sucrose ester and tween-80 as emulsifier. The conditions of ultrasonic-assisted emulsion, ratio of wall materials, emulsifier amount and spray drying parameters were studied. The microcapsules produced respectively by spray drying and freezing drying were compared in this paper. The optimum process was showed as squalene 3.0 g and tween-80 0.6 g were emulsified under 240 W for 4 min, and then mixed with water as solid content 3.88% with gelatin 2.0 g,arabic gum 2.0 g,maltodetrin 10.0 g,sucrose ester 0.5 g; the inlet and outlet temperatures for spray drying were 180 ℃ and 105 ℃; and the spray air speed was 1.5 m3/h and feeding rate was 6 mL/min. Under these conditions, the encapsulation efficiency was 92.3% and the microcapsule was nearly spherical, the mean size was about 12.0 μm. Microencapsulated products by spray drying had higher encapsulation efficiency, smaller particle size and higher reliability compared with the products by freeze drying.

Key words: squalene, microcapsule, spray drying, ultrasonic-assisted emulsion

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