文献类型：期刊文献

英文题名：Low-Temperature Vacuum Drying of Natural Gardenia Yellow Pigment

作者：Liu, Wei[1,2] Zheng, Yanyi[3] Huang, LiXin[1,2] Zhang, CaiHong[1,2] Xie, PuJun[1,2]

第一作者：Liu, Wei

通信作者：Huang, LX[1]|[a000570f79d3438a5c2bd]黄立新;

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu Prov, Peoples R China;[2]Chinese Acad Forestry, Inst Forest New Technol, Beijing, Peoples R China;[3]Nanjing Forestry Univ, Nanjing, Peoples R China

年份：2011

卷号：29

期号：10

起止页码：1132-1139

外文期刊名：DRYING TECHNOLOGY

收录：;EI(收录号：20112914151585);Scopus(收录号：2-s2.0-79960239943);WOS:【SCI-EXPANDED(收录号:WOS:000294804100002)】；

基金：This project was sponsored by the key project of the State Forest Administration (Grant No: 2011-02), the sub-project of the 863 plan "New Technical Research on the Distribution of Flow and Temperature Fields of Energy-Efficient and Homogeneous Drying," and the fund programs from the Chinese Academy of Forestry, P.R. China (Project No. CAFINT2010K05).

语种：英文

外文关键词：Color value; Effective diffusion coefficient; Low-temperature vacuum drying; Model

摘要：The effects of operational parameters, that is, drying temperature, feed solution layer thickness, and level of vacuum, on product qualities and drying kinetics for low-temperature vacuum drying of Gardenia yellow pigment were studied. Temperature had the most significant effect on product quality and drying time. The optimal operating conditions to yield the best product quality were obtained as heating temperature, 35 degrees C; layer thickness, 7 mm; and vacuum level, 0.09 MPa. Simulation results showed that the well-known Page model gave the best prediction. The effective diffusion coefficients for Gardenia yellow pigment solutions (20% wb) were estimated from the drying curves in the range 8.45 x 10(-9) m(2)/s at 35 degrees C and 1.10 x 10(-8) m(2)/s at 55 degrees C.