Ingredient Consistency of Commercially Available Polyphenol and Tocopherol Nutraceuticals
Abstract
:1. Introduction
2. Experimental section
2.1. Polyphenol and Vitamin E succinate products
2.2. Sample extraction and preparation
Vitamin E succinate product | Label claims of vitamin E succinate per capsule/tablet | ||||
Bronson® Natural Vitamin E | 300 IU | ||||
Puritan’s Pride® Natural “Non Oily” Dry Vitamin E | 400 IU | ||||
LifeExtension™ Vitamin E | 400 IU | ||||
NOW® Dry Vitamin E | 400 IU | ||||
GNC Vitamin E | 400 IU | ||||
Jarrow Formulas® Dry Vitamin E | 400 IU | ||||
Twinlab® Vitamin E | 400 IU | ||||
Carlson® Key-E Vitamin E | 400 IU | ||||
Solgar® Natural Vitamin E | 400 IU | ||||
Bluebonnet Dry Vitamin E | 400 IU | ||||
Allergy Research Group® Vitamin E Succinate | 400 IU | ||||
Hypoallergic | 400 IU | ||||
American Biologics® Dry Vitamin E Succinate | 400 IU | ||||
Super Spectrim® Vitamin E | 200 IU | ||||
Polyphenol product | Lot Number | Expiration date | Label claims per capsule/tablet | ||
Pterostilbene | Phloretin | Myricetin | |||
LifeExtension™ Blueberry extract | 27321 | 12/1/2009 | • | † | |
Source Naturals® Myricetin | 723915 | 11/1/2010 | • | ||
Source Naturals® Policosanol Cholesterol Complex | 730536 | 11/1/2010 | • | ||
Swanson® Double strength apple cider vinegar | 158461 | 9/1/2009 | † | ||
Swanson® GreenFoods Formulas, Wild blueberry extract | 158371 | 9/1/2009 | • | † | |
Swanson® Superior herbs, Red wine extract | 157639 | 7/1/2009 | † | ||
Swanson Ultra® 100% Natural pterostilbene | 156251 | 5/1/2009 | • | ||
Swanson Ultra® Maximum strength apple polyphenols | 156948 | 6/1/2009 | † |
2.3. Analysis methods
3. Results and discussion
3.1. Vitamin E succinate products
Number | Vitamin E succinate (%) | Vitamin E acetate (%) | Gamma- tocopheryl succinate(%) |
---|---|---|---|
1 | 112.5 ± 8.4 | 0 | 0.38 |
2 | 116.9 ± 8.3 | 0 | 0.46 |
3 | 104.2 ± 9.7 | 0 | 0.71 |
4 | 103.9 ± 3.3 | 0 | 0.47 |
5 | 99.5 ± 7.1 | 0 | 0.37 |
6 | 106.1 ± 2.8 | 0 | 0.29 |
7 | 110.5 ± 5.9 | 0 | 0.74 |
8 | 106.4 ± 5.5 | 0 | 0.41 |
9 | 116.8 ± 4.2 | 0 | 0.94 |
10 | 110.0 ± 5.1 | 0 | 0.55 |
11 | 103.7 ± 2.9 | 0 | 0.81 |
12 | 119.3 ± 4.3 | 0 | 0.57 |
13 | 0 | 9.3 | 0 |
14 | 0 | 84.7 | 0 |
3.2. Polyphenol nutraceuticals
Number | Pterostilbene | Phloretin | Myricetin | ||||||
---|---|---|---|---|---|---|---|---|---|
Claimed | Aglycone | Glycoside | Claimed | Aglycone | Glycoside | Claimed | Aglycone | Glycoside | |
1 | 0 | 0 | 0.0024 | 0 | 10 mg | 2.65 | 0.132 | ||
2 | 0.1 mg | 0.232 | 0 | 0.0050 | 0.0048 | † | 0.150 | 0.062 | |
3 | 0 | 0 | 0.0019 | 0 | 100 mg | 2.21 | 0.012 | ||
4 | 0 | 0 | † | 0.105 | 0 | 0 | 0 | ||
5 | 0.25 mg | 0.552 | 0 | 0 | 0 | † | 0.035 | 0.0674 | |
6 | 30 mg | 1.28 | 0.186 | 0 | 0 | 0 | 0 | ||
7 | 0 | 0 | 0.0059 | 0 | † | 0.030 | 0.0014 | ||
8 | 0 | 0 | † | 0 | 0 | 0 | 0 |
4. Conclusions
Acknowledgements
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Remsberg, C.M.; Good, R.L.; Davies, N.M. Ingredient Consistency of Commercially Available Polyphenol and Tocopherol Nutraceuticals. Pharmaceutics 2010, 2, 50-60. https://doi.org/10.3390/pharmaceutics2010050
Remsberg CM, Good RL, Davies NM. Ingredient Consistency of Commercially Available Polyphenol and Tocopherol Nutraceuticals. Pharmaceutics. 2010; 2(1):50-60. https://doi.org/10.3390/pharmaceutics2010050
Chicago/Turabian StyleRemsberg, Connie M., Renee L. Good, and Neal M. Davies. 2010. "Ingredient Consistency of Commercially Available Polyphenol and Tocopherol Nutraceuticals" Pharmaceutics 2, no. 1: 50-60. https://doi.org/10.3390/pharmaceutics2010050
APA StyleRemsberg, C. M., Good, R. L., & Davies, N. M. (2010). Ingredient Consistency of Commercially Available Polyphenol and Tocopherol Nutraceuticals. Pharmaceutics, 2(1), 50-60. https://doi.org/10.3390/pharmaceutics2010050