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| Content Provider | Springer Nature Link |
|---|---|
| Author | Camelo Méndez, G. A. Ragazzo Sánchez, J. A. Jiménez Aparicio, A. R. Vanegas Espiza, P. E. Paredes López, O. Villar Martínez, A. A. |
| Copyright Year | 2013 |
| Abstract | Anthocyanins are a group of water-soluble pigments that provide red, purple or blue color to the leaves, flowers, and fruits. In addition, benefits have been attributed to hypertension and cardiovascular diseases. This study compared the content of total anthocyanins and volatile compounds in aqueous and ethanolic extracts of four varieties of Mexican roselle, with different levels of pigmentation. The multivariable analysis of categorical data demonstrated that ethanol was the best solvent for the extraction of both anthocyanins and volatile compounds. The concentration of anthocyanin in pigmented varieties ranged from 17.3 to 32.2 mg of cyanidin 3-glucoside/g dry weight, while volatile compounds analysis showed that geraniol was the main compound in extracts from the four varieties. The principal component analysis (PCA) allowed description of results with 77.38 % of variance establishing a clear grouping for each variety in addition to similarities among some of these varieties. These results were validated by the confusion matrix obtained in the classification by the factorial discriminate analysis (FDA); it can be useful for roselle varieties classification. Small differences in anthocyanin and volatile compounds content could be detected, and it may be of interest for the food industry in order to classify a new individual into one of several groups using different variables at once. |
| Starting Page | 229 |
| Ending Page | 234 |
| Page Count | 6 |
| File Format | |
| ISSN | 09219668 |
| Journal | Plant Foods for Human Nutrition |
| Volume Number | 68 |
| Issue Number | 3 |
| e-ISSN | 15739104 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2013-05-29 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Roselle Anthocyanins Volatile compounds Categorical multifactorial analysis Principal component analysis (PCA) and factorial discriminate analysis (DFA) Food Science Chemistry/Food Science Nutrition Ecology Plant Physiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Food Science |
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