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Improved isolation of bioactive components of bovine colostrum using cross‐flow microfiltration
Author(s) -
Gosch Thomas,
Apprich Silvia,
Kneifel Wolfgang,
Novalin Senad
Publication year - 2013
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/1471-0307.12027
Subject(s) - microfiltration , colostrum , membrane , chromatography , ultrafiltration (renal) , casein , bovine milk , permeation , chemistry , ceramic membrane , food science , biochemistry , antibody , biology , immunology
Bovine colostrum contains bioactive components such as growth factors, immunoglobulins and antimicrobial factors. As conventional heat treatment methods inactivate these valuable components, cross‐flow microfiltration ( MF ) seems to be a promising option for the processing of bovine colostrum. A series of cross‐flow MF experiments with tubular ceramic membranes of various pore sizes and geometries were conducted. MF with pore sizes of 0.8 and 1.4 μm resulted in a 5.4‐ and 3.5‐log reduction of the microbial content, respectively. Applying 0.14‐ and 0.2‐μm membranes lead to a permeate that was almost free from micro‐organisms and casein. However, the maximum transmission of whey protein into the permeate was only 33%.