Analysis of Phenolic Compounds in Two Blackberry Species (Rubus glaucus and Rubus adenotrichus) by High-Performance Liquid Chromatography with Diode Array Detection and Electrospray Ion Trap Mass Spectrometry

• Published in: Journal of agricultural and food chemistry Vol. 55; no. 21; pp. 8616 - 8624
• Main Authors: Mertz, Christian, Cheynier, Veronique, Günata, Ziya, Brat, Pierre
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 17.10.2007
• Subjects: anthocyanins; Biological and medical sciences; blackberries; Blackberry; Chromatography, High Pressure Liquid - methods; Compos of Foods/Feeds; Coumaric Acids - analysis; diode array detection; electrospray ion trap mass spectrometry; ellagic acid; ellagitannins; Flavonoids - analysis; flavonols; Food engineering; Food industries; Fruit - chemistry; fruit composition; Fundamental and applied biological sciences. Psychology; General aspects; high performance liquid chromatography; HPLC; Hydrolyzable Tannins - analysis; Life Sciences; mass spectrometry; Methods of analysis, processing and quality control, regulation, standards; phenolic compounds; Phenols - analysis; Polyphenols; Rosaceae - chemistry; Rubus; Rubus adenotrichus; Rubus glaucus; Spectrometry, Mass, Electrospray Ionization; phenolic compounds; Rubus glaucus; mass spectrometry; Blackberry; Rubus adenotrichus; HPLC; Rosaceae; Rubus; HPLC chromatography; Electrospray; Ion trap; Analysis method; Dicotyledones; Angiospermae; Phenols; Diode array; Spermatophyta; Control method; Detection; Species; Mass spectrometry; RUBUS ADENOTRICHUS; MASS SPECTROMETRY; PHENOLIC COMPOUND; BLACKBERRY; RUBUS GLAUCUS; MURE
• ISSN: 0021-8561; 1520-5118
• DOI: 10.1021/jf071475d

High-performance liquid chromatography with diode array (LC-DAD) and electrospray ionization mass spectrometric detection (ESI-MS) was used to analyze phenolic compounds of two blackberry species (Rubus glaucus Benth. and Rubus adenotrichus Schlech.) growing in South America. UV–visible spectrophotometry was a valuable tool for identifying the class of phenolic compound, whereas MS and MS n fragmentation data were useful for their structural characterization. Ellagitannins were the major compounds, with sanguiin H-6 and lambertianin C being the predominant ones. The anthocyanin composition as well as the presence or absence of kaempferol glycosides can be used to distinguish the Rubus species studied. Flavonol hexoside-malonates were identified in both berries. Hydroxycinnamic acids were minor compounds and found as ferulic, caffeic, and p-coumaric acid esters. Similar contents were obtained by analysis of soluble ellagitannins and ellagic acid glycosides as ellagic acid equivalents and by analysis of ellagic acid equivalents released after acid hydrolysis.