Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
|
pubmed:dateCreated |
1997-1-17
|
pubmed:abstractText |
A new method was developed for obtaining pure beta-CN. Calcium caseinate (3%) was reconstituted, renneted to form a gel, cooled (4 degrees C) to allow beta-CN dissociation from the caseinate gel, and centrifuged. The supernatant was warmed to 30 degrees C, precipitating pure beta-CN from solution. Large quantities of beta-CN were recovered by scaling-up this procedure, but these beta-CN preparations were less pure than the beta-CN that was prepared on a smaller scale. Chromatography (FPLC) and urea-PAGE showed beta-CN to be the main component in the precipitate. Chymosin, used to form the caseinate gel, did not extensively hydrolyze beta-CN under the conditions of these experiments. Calcium concentration, cooling time, and caseinate concentration influenced the recovery of beta-CN. Maximum recovery of beta-CN, under the experimental conditions used, occurred at 10 mM calcium, 48 h of cooling, and 3% caseinate concentration.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Caseins,
http://linkedlifedata.com/resource/pubmed/chemical/Chymosin,
http://linkedlifedata.com/resource/pubmed/chemical/Gels,
http://linkedlifedata.com/resource/pubmed/chemical/Peptide Fragments,
http://linkedlifedata.com/resource/pubmed/chemical/Urea,
http://linkedlifedata.com/resource/pubmed/chemical/rennet
|
pubmed:status |
MEDLINE
|
pubmed:month |
Aug
|
pubmed:issn |
0022-0302
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
79
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1332-9
|
pubmed:dateRevised |
2009-11-19
|
pubmed:meshHeading |
pubmed-meshheading:8880456-Calcium,
pubmed-meshheading:8880456-Caseins,
pubmed-meshheading:8880456-Chemical Precipitation,
pubmed-meshheading:8880456-Chromatography, High Pressure Liquid,
pubmed-meshheading:8880456-Chymosin,
pubmed-meshheading:8880456-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:8880456-Gels,
pubmed-meshheading:8880456-Hydrolysis,
pubmed-meshheading:8880456-Peptide Fragments,
pubmed-meshheading:8880456-Urea
|
pubmed:year |
1996
|
pubmed:articleTitle |
A method for isolating beta-casein.
|
pubmed:affiliation |
Department of Nutrition and Food Science, University of Minnesota, St. Paul 55108, USA.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|