Determination of Water-Soluble Polyphenolic Compounds in Commercial Herbal Teas from Lamiaceae: Peppermint, Melissa, and Sage

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• 作者：Izabela Fecka ; Sebastian Turek
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2007
• 出版时间：December 26, 2007
• 年：2007
• 卷：55
• 期：26
• 页码：10908 - 10917
• 全文大小：786K
• 年卷期：v.55,no.26(December 26, 2007)
• ISSN：1520-5118

文摘

Chromatographic techniques (HPLC and HPTLC) were used for qualitative and quantitative determination of eriocitrin, luteolin 7-O-rutinoside, luteolin 7-O-β-glucuronide, lithospermic acid, rosmarinic acid, and methyl rosmarinate together with other known compounds in commercial herbal teas from the Lamiaceae family: peppermint leaf (Menthae piperitae folium), melissa leaf (Melissae folium), and sage leaf (Salviae officinalis folium). Contents of analyzed compounds in infusions, the most popular forms, were established using a C18 column with acetonitrile−water−formic acid as a mobile phase. The HPLC method was validated for linearity, precision, and accuracy. Luteolin 7-O-β-glucuronide and lithospermic acid were identified as new Mentha × piperita compounds. The investigated herbal teas delivered polyphenols in high amounts, up to 182.2 mg for the infusion of one peppermint tea bag.