Delactosed permeate (DLP), commonly referred to as mother liquor, is a plentiful byproduct in the dairy industry. It is a direct byproduct of edible lactose manufacture produced in cheese and dairy ingredient facilities. Despite being rich in lactose and minerals, DLP is most commonly relegated to an animal feed product due to its high ash content, it inhibits and disallows crystallization of any remaining lactose.
Delactosed permeate showed many inconsistencies from supplier to supplier and within lots from the same supplier in the eight DLP samples obtained from four separate mozzarella and cheddar manufacturing facilities. Nanofiltration (NF) opens potential food applications for DLP. The eight DLP samples obtained were processed via NF creating two separate product streams. A retentate (NFR) with increased lactose concentrations on a dry basis in addition to increased concentrations of large molecular weight minerals and organic acids (Ca, Mg, S, citric acid). In addition to, a permeate rich in small molecular weight minerals and organic acids (Cl, Na, K, lactic and formic acid). Flux rate and the composition of retentates/permeates varied from trial to trial and is likely due to different milk compositions, cheese making practices, whey handling practices and lactose manufacturing methods.
The DLP retentate proved to have increased lactose concentration. Unfortunately, the remaining minerals and organic acid concentration inhibited effective lactose crystallization when blended with industry deproteinized whey concentrate samples.
|School:||South Dakota State University|
|School Location:||United States -- South Dakota|
|Source:||MAI 82/3(E), Masters Abstracts International|
|Keywords:||Delactosed permeate, Lactose crystallization, Mother liquor, Nanofiltration|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be