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Studies on Pervaporation for Recovery of Natural
Aroma Compound. Edition No. 1
VDM Publishing House, Oct 2008, Pages: 164
Aroma compounds are widely used as additives in many
products (food, pharmacy and cosmetics). Most
industries applied extraction and distillation to
recover aroma compounds from natural sources;
however, both suffer from disadvantages (product
contamination and energy consumption). Pervaporation
(PV), a membrane separation process, is considered
as a promising technique to overcome above
challenges. This book contains both experimental and
parametric studies dealing with the application of
PV for aroma compound recovery from aqueous
solutions using poly (ether-block-amide) (PEBA)
membranes. The effect of process conditions on PV
performance (permeation flux and selectivity) were
investigated. The solubility and diffusivity of the
aroma compounds in PEBA membrane were evaluated. A
modified PV process was studied parametrically. In
conclusion, PEBA membrane was found selective for
aroma-water separation, the molecular interactions
between permeant-permeant and permeant-membrane had
significant role affecting the mass transfer
behavior of permeant across the membrane, and the
modified PV process could improve the aroma compound
recovery.
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