OF DOCTORAL DISSERTATION HELSINKI UNIVERSITY OF TECHNOLOGY P.O. BOX 1000, FI-02015 TKK http://www.tkk.fi Author Marko Outinen Name of the dissertation Effect of pre-treatment of cheese milk on the composition and characteristics of whey and whey products Manuscript submitted 2.10.2009 Manuscript revised 24.11.2009 Date of the defence 20.1.2010 Monograph x Article dissertation (summary + origina...

A two-step-cascade membrane separation by ultrafiltration was performed on caprine milk prepared under different temperature conditions to eliminate beta-lactoglobulin (β-Lg) from the whey fraction. Effects of temperature treatment and membrane pore size on the elimination of β-Lg and retention of alpha-lactalbumin (α-La) were examined to determine the optimum permeate fraction for production o...

in this study the bacterial growth inhibitory activity of peptide fragments produced from goat’s milk whey proteins by enzymatic hydrolysis using trypsin, ficin and a combination of both was investigated. goat’s milk whey proteins were isolated and subjected to enzymatic hydrolysis and peptides were purified by ultrafiltration followed by reverse-phase high-performance liquid chromatography (rp...

Low energy ultrasound irradiation (20 kHz, 1.0 W·L) was applied to enhance bioethanol production from whey ultrafiltration permeate by co-immobilized Saccharomyces cerevisiae cells and β-galactosidese enzyme. Sugar utilization and ethanol formation were investigated as a function of hydraulic retention time (HRT) between 12 and 36 h. Maximum ethanol production under HRT of 36 h was 26.30 g·L wi...

In this paper, a process for the stable production of low allergenicity hydrolysates is presented. Whey protein was hydrolysed at 50 C and pH 8.5 using a bacterial protease in a continuous stirred tank membrane reactor including a polyethersulfone plate and frame ultrafiltration module with a molecular weight cut-off of 3 kDa. The reactor was maintained in operation for 16 h. Conversion reached...