食品科学 ›› 2011, Vol. 32 ›› Issue (20): 44-47.doi: 10.7506/spkx1002-6630-201120010

• 工艺技术 • 上一篇    下一篇

不同干燥方法对三七内部结构和复水品质的影响

周国燕,詹 博,桑迎迎,王春霞,胡晓亮   

  1. 上海理工大学低温生物与食品冷冻研究所
  • 出版日期:2011-10-25 发布日期:2011-10-12
  • 基金资助:
    国家自然科学基金青年基金项目(50206013);上海市重点学科建设项目(S30503); 上海市教委科研创新项目(09YZ230)

Influence of Drying Methods on Inner Structure and Rehydration Quality of Radix Notoginseng

ZHOU Guo-yan,ZHAN Bo,SANG Ying-ying,WANG Chun-xia,HU Xiao-liang   

  1. (Institute of Cryo-medicine and Food Refrigeration, Shanghai University of Science and Technology, Shanghai 200093, China)
  • Online:2011-10-25 Published:2011-10-12

摘要: 对比研究真空冷冻干燥、真空干燥和热风干燥对三七内部结构和复水品质的影响。采用微CT技术对干燥样品进行扫描和图像重构,计算干燥样品的孔隙率和复水比,对3种干燥方法所得样品的复水品质进行对比分析。结果表明:3种干燥方法对孔隙率和复水比都有极显著影响(P<0.01)。从内部结构的保持和复水品质角度来看,真空冷冻干燥优于其他两种干燥方法,较适于工业生产。

关键词: 三七, 孔隙率, 复水品质, 干燥方法

Abstract: The influence of vacuum freeze-drying, vacuum drying and hot-air drying on the inner structure and rehydration quality of Radix Notoginseng (dried roots of Panax notoginseng) was comparatively investigated. Porosity and rehydration rate of dried samples were calculated based on Micro-CT scanning and image reconstruction. All the three drying methods had a highly significant impact on porosity and rehydration rate of dried samples. In terms of inner structure maintenance and rehydration quality, vacuum freeze-drying was superior to the other two methods and more suitable for industrial production.

Key words: Panax notoginseng, porosity, rehydration quality, drying method

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