Food polymer pullulan-κ-carrageenan composite membrane performed smart function both on mass transfer and molecular size recognition

2011 ◽  
Vol 34 (1-3) ◽  
pp. 239-245 ◽  
Author(s):  
Peng Wu ◽  
Masanao Imai
Keyword(s):  
Mass Transfer ◽  
Composite Membrane ◽  
Molecular Size

Influence of the Multilayer Nature of a Composite Membrane on Mass Transfer

2009 ◽  
Vol 12 (8) ◽  
pp. 749-757 ◽  
Author(s):  
E. Tsotsas ◽  
A. Hussain ◽  
A. Seidel-Morgenstern
Keyword(s):  
Mass Transfer ◽  
Composite Membrane

Mathematical Modelling of Extraction Yield, Glycosaponin and Eurycomanone Content from Eurycoma longifolia Roots

2021 ◽  
Vol 07 ◽  
Author(s):  
Abirame Segaran ◽  
Lee Suan Chua ◽  
Sivakumar Kumaresan
Keyword(s):  
Mass Transfer ◽  
Molecular Size ◽  
Well Being ◽  
Extraction Yield ◽  
Single Step ◽  
Quadratic Model ◽  
South East Asia ◽  
Mass Transfer Limitation ◽  
Eurycoma Longifolia ◽  
And Diffusion

Aim: The technique of modeling was used to predict the performance of herbal extraction. Background: Eurycoma longifolia is a traditional herb which is widely used to promote overall well-being by local folks in South East Asia. Objective: The objective of this study was to model the extraction yield, glycosaponin and eurycomanone content from the roots of E. longifolia in a reflux system. Results: A quadratic model is well-fitted to the yield of extraction, while a linear model is proposed for the extraction of eurycomanone which is significantly affected by temperature. The single step of reflux process revealed that glycosaponin extraction behaves linearly with temperature and particle size, but in inverse direction. However, further reflux process using crude extract prior to gravimetric precipitation could produce higher content of glycosaponin which can be explained using a quadratic model. Conclusion: The extraction of eurycomanone was faster than glycosaponin because the mass transfer and diffusion coefficients of eurycomanone was about two times larger than glycosaponin. Other: This could be due to larger molecular size of glycosaponin, and thus higher mass transfer limitation to diffuse from plant cells into solvent during extraction.

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