期刊
JOURNAL OF FOOD SCIENCE
卷 75, 期 9, 页码 H306-H310出版社
WILEY
DOI: 10.1111/j.1750-3841.2010.01860.x
关键词
GC-MS; isoflavone; sex-hormone related diseases; soymilk; urinary equol producer
资金
- Natl. Science Council (NSC) [NSC 91-2313-B415-001]
- Dept. of Health (DOH), Republic of China [DOH 94TD-F-113-025]
Status of equol excretion is likely a reflection of incidence risk of sex-hormone related diseases and deserves research attention. In this study, urine samples collected from 182 volunteers after soymilk ingestion were subjected to equol quantification using GC-MS. As categorized into male, female, and both genders and each category further classified into 6 age (year) categories, namely, < 20, 21 to 30, 31 to 40, 41 to 50, > 51 and overall, a trend indicating that the younger age the higher equol producer ratio was observed. For the > 51 subjects, the corresponding producer ratios of males and females were 35.3% and 50.0%, respectively. Among the volunteers, 20 nonproducers were further recruited to ingest 1000 mL soymilk weekly for 16 wk and urines were analyzed bi-weekly. As resulted, 8 of 20 nonproducers were induced to become equol producers. The observed change of nonproducers to equol producers induced by repeating ingestions of soymilk is of merit from the viewpoint of healthcare.
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