Linked Life Data

9655582

Source:http://linkedlifedata.com/resource/pubmed/id/9655582

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1998-8-10
pubmed:abstractText
This investigation gives an overview of the concentrations of naturally occurring androgens, progestogens, corticosteroids, and their precursors and metabolites in meat from bulls and steers. A recently developed gas chromatography-mass spectrometry IGC-MS) method with improved sensitivity for steroid analysis was used. Eighty-two beef samples were analyzed using the GC-MS method. Beef from bulls contained higher concentrations of testosterone, which is an anabolic androgen, and its metabolite epitestosterone (P < .01) and the androgen precursor dehydroepiandrosterone (P < .05) than beef from steers. Beef from steers contained higher (P < .05) concentrations of the basic hormone precursor pregnenolone and cortisol, which is a catabolic corticosteroid, than beef from bulls. A classification of an unknown beef sample to one of the categories (bull or steer) was possible in most cases (>90%) using a masculinity index (MI) that was calculated using the concentrations of testosterone, epitestosterone, and pregnenolone. Because the hormonal status of beef cattle is related to meat quality characteristics, such as tenderness or fat and protein distribution, the MI may contribute to meat quality assessment and meat quality control.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0021-8812
pubmed:author
pubmed:issnType
Print
pubmed:volume
76
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1621-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Differences in natural steroid hormone patterns of beef from bulls and steers.
pubmed:affiliation
Department of Food Chemistry, University of Hamburg, Germany.
pubmed:publicationType
Journal Article