Single-Laboratory Validation for Determination of Total Soluble Proanthocyanidins in Cranberry Using 4-Dimethylaminocinnamaldehyde
| Autor: | David G. Cunningham, Tony Chang, Xianli Wu, Lin Li, Ronald L. Prior, Marsha Sintara |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Modified method
01 natural sciences Analytical Chemistry food 4-dimethylaminocinnamaldehyde Environmental Chemistry Vaccinium macrocarpon Proanthocyanidins Food science food.beverage Pharmacology 010405 organic chemistry Chemistry 010401 analytical chemistry CRANBERRY JUICE Reproducibility of Results Repeatability American cranberry food.food Anti-Bacterial Agents 0104 chemical sciences Fruit and Vegetable Juices Proanthocyanidin Cinnamates Spectrophotometry Agronomy and Crop Science Food Science |
| Zdroj: | Journal of AOAC INTERNATIONAL. 101:805-809 |
| ISSN: | 1944-7922 1060-3271 |
| DOI: | 10.5740/jaoacint.17-0288 |
| Popis: | American cranberry (Vaccinium macrocarpon) is native to Eastern North America. Recent studies have suggested that the A-type proanthocyanidins (PACs) in cranberries are effective in preventing urinary tract infection. To meet the growing interest in the cranberry market, an accurate, reliable, and simple method to determine PAC concentration is needed. In this study, a modified method using 4-dimethylaminocinnamaldehyde to quantify total PACs in cranberry products was validated. Cranberry juice extract powder, cranberry capsules containing juice extract, and cranberry juice concentrate were used as the samples in this study. With the modified method, the calibration curves for proanthocyanidin A2 had correlation coefficients (r2) of >0.99. The recoveries of two different concentrations after spiking were 97.1 and 99.1%, and the RSDs for repeatability and reproducibility were |
| Databáze: | OpenAIRE |
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