[Determination of naturally occurring sex steroid hormones (androgens and progestagens) in beef]. / Bestimmung natürlich vorkommender steroidaler Sexualhormone (Androgene und Gestagene) in Rindfleisch.
Z Lebensm Unters Forsch
; 201(6): 533-6, 1995 Dec.
Article
em De
| MEDLINE
| ID: mdl-8585330
ABSTRACT
The content of 10 naturally occurring steroidal sex hormones (androgens and progestogens), their biosynthetic precursors and metabolites was determined in 62 samples of beef (bulls, steers, heifers). After enzymatic hydrolysis of their conjugates, the steroids were extracted from the tissue by liquid-liquid extraction and purified by solid phase extraction. The identification and quantification was carried out by GC-MS of the trimethylsilyl ethers. The progestogens progesterone and pregnenolone were quantitatively dominant (43.7 and 6.5 micrograms/kg respectively). The highest steroid concentrations were determined in female cattle.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Progestinas
/
Androgênios
/
Carne
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
De
Revista:
Z Lebensm Unters Forsch
Ano de publicação:
1995
Tipo de documento:
Article
País de afiliação:
Alemanha