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Position: Home > Articles > Application of Membrane Separation Technology Integration in Separation and Concentration of Hibiscus sabdariffa Pigments FOOD SCIENCE 2011,32 (14) 341-345

膜分离技术集成在玫瑰茄色素加工中的应用

作  者:
郭宏;彭义交;吕晓莲;贾建会;田旭
单  位:
北京市食品研究所
关键词:
玫瑰茄;超滤;反渗透;膜清洗
摘  要:
通过超滤和反渗透技术集成,在常温条件下实现对玫瑰茄色素的提纯和浓缩,以实现对色素这一热敏性物质起到较好的保护作用,提高色素的品质。采用切割相对分子质量50000的聚砜超滤膜对玫瑰茄浸提液中的果胶进行分离,操作压力0.3MPa、操作温度30℃、料液流速1.375m/s、加料液1/4的水量洗滤后,色素和果胶分离率分别大于96%和90%;采用HR95PP聚酰胺反渗透膜将玫瑰茄超滤透过液浓缩至20°Bx,操作压力4.5MPa、温度30℃。
译  名:
Application of Membrane Separation Technology Integration in Separation and Concentration of Hibiscus sabdariffa Pigments
作  者:
GUO Hong,PENG Yi-jiao,LU Xiao-lian,JIA Jian-hui,TIAN Xu(Beijing Food Research Institute,Beijing 100162,China)
关键词:
Hibiscus sabdariffa L;ultra-filtration;reverse osmosis;membrane cleaning
摘  要:
The integration of ultra-filtration and reverse osmosis membrane technology can provide a protection effect on Hibiscus sabdariffa pigments and improve their quality during purification and condensation process at room temperature.The optimal separation process conditions were ultra-filtration pressure of 0.3 MPa,filtration temperature of 30 ℃,flow rate of 1.375 m/s and material/liquid ratio of 1:4.Under the optimal separation conditions,the separation rates of pectin and pigment were over 96% and 90%,respectively.The permeate was condensed to 20 °Bx by reverse osmosis at 4.5 MPa and 30 ℃.The membrane cleaning method discussed in this paper can provide a promising method for separating and concentrating Hibiscus sabdariffa pigments and other natural pigments.

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