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›› 2011, Vol. 45 ›› Issue (4): 1-9.

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Dispersibility and Flowability of Modified Ginkgo biloba Seed Powder by Spray Drying

ZHANG Cai-hong1, HUANG Li-xin1,2, LIU Wei1, XIE Pu-jun1, ARUN S MUJUMDAR3   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.on Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;2. Institute of New Technology of Forestry, CAF, Beijing 100091, China;3. Department of Mechanical Engineering, National University of Singapore, 119260 Singapore
  • Received:2010-12-23 Revised:1900-01-01 Online:2011-07-30 Published:2011-07-30

Abstract: The dispersibility and flowability of modified Ginkgo biloba (GB) powder by spray drying was investigated. The additives for modification, i.e., maltodextrin, β-cyclodextrin and arabic gum, were selected. The dispersibility of modified powder at different water temperature, was measured as well. The results showed that β-cyclodextrin was the best to modify the dispersibility and flowability of GB product among the three addtitives. The dispersibility at 60℃ and the flowability increased with the increased ratio of β-cyclodextrin to GB solid content. The best ratio was 4:10. But at 40℃, the dispersibility increased with ratio increase and then reduced. The best ratio was 3:10. It was also found that the dispersibility of modified dried powder increased with temperature increased first and then decreased. The best dispersibility of modified GB powder was obtained in the range of 40-60℃.

Key words: dispersibility, flowability, modified GB powder, spray drying

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