Transfer of soy isoflavone into the egg yolk of chickens

Citation
S. Saitoh et al., Transfer of soy isoflavone into the egg yolk of chickens, BIOS BIOT B, 65(10), 2001, pp. 2220-2225
Citations number
26
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Agricultural Chemistry","Biochemistry & Biophysics
Journal title
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
ISSN journal
0916-8451 → ACNP
Volume
65
Issue
10
Year of publication
2001
Pages
2220 - 2225
Database
ISI
SICI code
0916-8451(200110)65:10<2220:TOSIIT>2.0.ZU;2-B
Abstract
A diet containing a high concentration of soy isoflavone was administered t o laying hens and the contents of the isoflavones transferred to the plasma and egg yolk were measured. A method for quantitatively measuring the conc entration of isoflavone in the yolk was first established, before a high co ncentration of soy isoflavone was administered to the laying hens over an 1 8-day period. The concentrations of isoflavone in the plasma and egg yolk r eached their highest on the 12th day of the feeding period, the values bein g 3,167 nmol/l and 65.29 mug/100 g, respectively. The concentration of chol esterol in the yolk was slightly affected during the early stages of the fe eding period. These findings clearly demonstrate that soy isoflavone was tr ansferred into the yolk from the feed and that the cholesterol concentratio n in the yolk was affected by administering the soy isoflavone-enriched fee d.