Content of phytoestrogens in soy-based dietary supplements

被引:30
作者
Boniglia, Concetta [1 ]
Carratu, Brunella [1 ]
Gargiulo, Raffaella [1 ]
Giammarioli, Stefania [1 ]
Mosca, Maurizio [1 ]
Sanzini, Elisabetta [1 ]
机构
[1] Ist Super Sanita, Dept Vet Publ Hlth & Food Safety, I-00161 Rome, Italy
关键词
Phytoestrogens; Aglycones; Soy-based dietary supplements; ISOFLAVONES; FOODS;
D O I
10.1016/j.foodchem.2009.01.062
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The isoflavone content of 14 soy-based dietary supplements intended to help alleviate perimenopausal and menopausal symptoms on sale in Italy were analysed using HPLC with UV detection. The aim was to quantify soy isoflavones after hydrolysis as aglycones, which are the bioactive part of isoflavone molecules. In the examined products, the amounts of isoflavones were frequently expressed ambiguously, and none of the products stated whether the isoflavone content of the product was expressed as aglycones or as conjugates. Each product revealed a different aglycone concentration profile. These supplements have different "fingerprints", probably due to different sources of raw materials and to methods used in processing and preparation of extracts. In more than half the supplements tested, the actual values contained were below those stated and below those expected to help alleviate perimenopausal and menopausal symptoms. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1389 / 1392
页数:4
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