Pharmaceutics | |
Ingredient Consistency of Commercially Available Polyphenol and Tocopherol Nutraceuticals | |
Connie M. Remsberg1  Renee L. Good1  | |
[1] Department of Pharmaceutical Sciences, College of Pharmacy, Washington State University, Pullman, WA 99164-6534, USA; | |
关键词: content analysis; polyphenols; nutraceuticals; vitamin E succinate; pterostilbene; phloretin; myricetin; | |
DOI : 10.3390/pharmaceutics2010050 | |
来源: mdpi | |
【 摘 要 】
Label claims of vitamin E succinate and polyphenolic nutraceuticals are assessed. A validated HPLC method was utilized to assess vitamin E succinate products. Three novel LC/MS methods were used to assess the polyphenols, pterostilbene, phloretin, and myricetin, in dietary supplements. The amount of vitamin E succinate varied from 0-130% of the stated label content with two products containing vitamin E acetate rather than vitamin E succinate. Expected polyphenols were found in 7 of the 8 supplement products. None of the polyphenol supplements contained content within 100-120% of label claims. The present study indicates a lack of uniformity in nutraceutical products.
【 授权许可】
CC BY
© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190054490ZK.pdf | 107KB | download |