Comparative Analysis of Over-the-Counter Tablet Preparations of Isoflavones Extracted from Soy Available in Portugal

The results of a survey of 28 over-the-counter tablet preparations of isoflavones extracted from soy and 2 with black cohosh that are available in Portuguese pharmacies are presented. All were remedies for hot flushes and post-menopause related problems. Their isoflavone content was analysed by HPLC...

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Bibliographic Details
Published inNatural product communications Vol. 1; no. 11; p. 1934578
Main Authors Campos, Maria G., Paranhos, António H., Matos, Miguel P., Câmara, Maria T., Cunha, Margarida M., Pinto, Paula R.O., Silvestre, Armando J.D., Amado, Francisco M. L., Neto, Carlos P.
Format Journal Article
LanguageEnglish
Published Los Angeles, CA SAGE Publications 01.11.2006
Subjects
phytoestrogens
quality control
Soy
post-menopause treatment
antioxidant activity
HPLC/DAD isoflavones
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Summary:The results of a survey of 28 over-the-counter tablet preparations of isoflavones extracted from soy and 2 with black cohosh that are available in Portuguese pharmacies are presented. All were remedies for hot flushes and post-menopause related problems. Their isoflavone content was analysed by HPLC/DAD and LC/MS-MS. The results show that the isoflavonoids in soy extracts sold by the pharmaceutical companies in Portugal are mainly daidzin, glycitin and genistin.
ISSN:1934-578X
1555-9475
DOI:10.1177/1934578X0600101111