Microfiltration Process by Inorganic Membranes for Clarification of TongBi Liquor
AbstractMembrane separation is an alternative separation technology to the conventional method of filtration. Hence, it has attracted use in the purification and concentration of Chinese Herbal Medicine Extracts (CHMEs). The purpose of this work was to study the process of microfiltration of Tongbi liquor (TBL), a popular Chinese herbal drink, using ceramic membranes. Zirconium oxide and aluminum oxide membranes with pore mean sizes of 0.2 μm and 0.05 μm, respectively, are used for comparisons in terms of flux, transmittance of the ingredients, physical-chemical parameters, removal of macromolecular materials and fouling resistance. The results show that 0.2 μm zirconium oxide membrane is more suitable. The stable permeate flux reaches 135 L·h−1·m−2, the cumulative transmittance of the indicator is 65.53%. Macromolecular materials, such as starch, protein, tannin, pectin and total solids were largely eliminated in retentate after filtration using 0.2 μm ZrO2 ceramic membrane, resulting in clearer TBL. Moreover, this work also reveals that continuous ultrasound could strengthen membrane process that the permeate flux increases significantly. This work demonstrates that the purification of CHME with ceramic membranes is possible and yielded excellent results.
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Li, B.; Huang, M.; Fu, T.; Pan, L.; Yao, W.; Guo, L. Microfiltration Process by Inorganic Membranes for Clarification of TongBi Liquor. Molecules 2012, 17, 1319-1334.
Li B, Huang M, Fu T, Pan L, Yao W, Guo L. Microfiltration Process by Inorganic Membranes for Clarification of TongBi Liquor. Molecules. 2012; 17(2):1319-1334.Chicago/Turabian Style
Li, Bo; Huang, Minyan; Fu, Tingming; Pan, Linmei; Yao, Weiwei; Guo, Liwei. 2012. "Microfiltration Process by Inorganic Membranes for Clarification of TongBi Liquor." Molecules 17, no. 2: 1319-1334.