PMID- 19138116 OWN - NLM STAT- MEDLINE DCOM- 20090302 LR - 20211020 IS - 1520-5118 (Electronic) IS - 0021-8561 (Print) IS - 0021-8561 (Linking) VI - 57 IP - 3 DP - 2009 Feb 11 TI - Quantitative and fingerprint analyses of Chinese sweet tea plant ( Rubus suavissimus S. Lee). PG - 1076-83 LID - 10.1021/jf8029397 [doi] AB - The quality of botanical food is increasingly assessed by the content of multiple bioactive compounds. This study reports, for the first time, an HPLC fingerprinting method for the quality evaluation of Rubus suavissimus leaves possessing multiple bioactivities. Five constituents, gallic acid, rutin, ellagic acid, rubusoside, and steviol monoside, were quantified and used in developing qualitative chromatographic fingerprints. The limits of detection and quantification ranged from 0.29 to 37.86 mug/mL. The relative standard deviations (RSDs) of intra- and interday precisions were no more than 3.14 and 3.01%, respectively. The average recoveries were between 93.1 and 97.5%. The developed method was validated in the analysis 14 leaf samples with satisfactory results. The contents of the five marker compounds accounted for an average of about 6% w/w with a variability of 16% among the 14 samples collected from a single site and year. Gallic acid was the least, whereas steviol monoside the most, variable compound among the 14 leaf samples. The characteristic compound rubusoside that is responsible for the sweet taste accounted for 5% of leaf weight. The validated method can now be used to quantitatively and qualitatively assess the quality of R. suavissimus leaves as traditional beverage or potential medicines. FAU - Chou, Guixin AU - Chou G AD - School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, Louisiana 70803, USA. FAU - Xu, Shun-Jun AU - Xu SJ FAU - Liu, Dong AU - Liu D FAU - Koh, Gar Yee AU - Koh GY FAU - Zhang, Jian AU - Zhang J FAU - Liu, Zhijun AU - Liu Z LA - eng GR - R21 AT002882/AT/NCCIH NIH HHS/United States GR - R21 AT002882-01A2/AT/NCCIH NIH HHS/United States GR - R21AT002882/AT/NCCIH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Agric Food Chem JT - Journal of agricultural and food chemistry JID - 0374755 RN - 0 (Diterpenes, Kaurane) RN - 0 (Glucosides) RN - 19YRN3ZS9P (Ellagic Acid) RN - 5G06TVY3R7 (Rutin) RN - 60129-60-4 (glucosilsteviol) RN - 632XD903SP (Gallic Acid) RN - TCV5K3M3GX (rubusoside) SB - IM MH - Chromatography, High Pressure Liquid/methods MH - Diterpenes, Kaurane/analysis MH - Ellagic Acid/analysis MH - Gallic Acid/analysis MH - Glucosides/analysis MH - Plant Leaves/*chemistry MH - Reproducibility of Results MH - Rosaceae/*chemistry MH - Rutin/analysis MH - Sensitivity and Specificity PMC - PMC2680688 MID - NIHMS87845 EDAT- 2009/01/14 09:00 MHDA- 2009/03/03 09:00 PMCR- 2010/02/11 CRDT- 2009/01/14 09:00 PHST- 2009/01/14 09:00 [entrez] PHST- 2009/01/14 09:00 [pubmed] PHST- 2009/03/03 09:00 [medline] PHST- 2010/02/11 00:00 [pmc-release] AID - 10.1021/jf8029397 [pii] AID - 10.1021/jf8029397 [doi] PST - ppublish SO - J Agric Food Chem. 2009 Feb 11;57(3):1076-83. doi: 10.1021/jf8029397.