Comparative Study of Anthocyanin and Volatile Compounds Content of Four Varieties of Mexican Roselle (Hibiscus sabdariffa L.) by Multivariable Analysis

G. A. Camelo-Méndez, J. A. Ragazzo-Sánchez, A. R. Jiménez-Aparicio, P. E. Vanegas-Espinoza, O. Paredes-López, A. A. Del Villar-Martínez

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

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.

Original languageEnglish
Pages (from-to)229-234
Number of pages6
JournalPlant Foods for Human Nutrition
Volume68
Issue number3
DOIs
StatePublished - Sep 2013

Keywords

  • Anthocyanins
  • Categorical multifactorial analysis
  • Principal component analysis (PCA) and factorial discriminate analysis (DFA)
  • Roselle
  • Volatile compounds

Fingerprint

Dive into the research topics of 'Comparative Study of Anthocyanin and Volatile Compounds Content of Four Varieties of Mexican Roselle (Hibiscus sabdariffa L.) by Multivariable Analysis'. Together they form a unique fingerprint.

Cite this