Minor constituents of total capsaicinoids from Capsicum annuum

Chemistry of Natural Compounds
2011.0

Abstract

Our goal was to determine the minor components in total capsaicinoids isolated from red chili pepper Capsicum annuum L. growing in the Fergan Valley, Kokand, Uzbekistan. Total capsaicinoids were isolated using petroleum ether extraction followed by column chromatography over a C18 hydrophobic silochrom sorbent, with a yield of 0.65 ± 0.05% per dry weight of the starting material. Pure capsaicinoids were separated by HPLC on a Zorbax 300SB-C18 column (4.6 × 250 mm) using a mobile phase of 0.1% trifluoroacetic acid (TFA) and acetonitrile (CH3CN) with gradient elution (5% CH3CN for 0–5 min, 5–60% CH3CN for 5–35 min, 60% CH3CN for 35–40 min, and a reverse gradient to 5% CH3CN over 5 min) at a flow rate of 1 mL/min and detection at 269 nm. Capsaicinoids were identified via liquid chromatography-mass spectrometry (LC-MS) using a Waters ZQ-4000 instrument with electrospray ionization (ESI+) under conditions including a drying gas flow rate of 450 L/h, drying gas temperature of 250°C, skimmer cone potentials of 35 and 50 V, and a mass range of 100–400 m/z. Eleven pure compounds were analyzed, with their mass spectra showing characteristic positive ions (e.g., 3-methoxy-4-hydroxybenzylidene at m/z 136.6, 100%). The qualitative and quantitative compositions of these compounds, including their trivial names, radicals, contents (ranging from 45.29% for capsaicin to 0.140% for nordihydrocapsaicin II), and elution times, are presented in Table 1. This study is the first to report the qualitative and quantitative composition of the minor constituents of total capsaicinoids from Capsicum annuum grown in Uzbekistan.

Knowledge Graph

Similar Paper

Minor constituents of total capsaicinoids from Capsicum annuum
Chemistry of Natural Compounds 2011.0
Purification and Structure Determination of Glucosides of Capsaicin and Dihydrocapsaicin from Various <i>Capsicum </i>Fruits
Journal of Agricultural and Food Chemistry 2006.0
Separation and Quantification of Capsaicinoids Using Complexation Chromatography
Journal of Natural Products 1995.0
Nachweis und Identifizierung neuer Scharfstoffe in Capsicum–Früchten
Planta Medica 1979.0
Rapid sample preparation method for HPLC analysis of capsaicinoids in capsicum fruits and oleoresins
Journal of Agricultural and Food Chemistry 1987.0
Antioxidant Activity of a New Capsaicin Derivative from Capsicum annuum
Journal of Natural Products 2003.0
Antioxidant Activity of a New Capsaicin Derivative from <i>Capsicum </i><i>a</i><i>nnuum</i>
Journal of Natural Products 2003.0
Separation of capsaicin from phenylpropanoid compounds by high-performance liquid chromatography to determine the biosynthetic status of cells and tissues of Capsicum frutescens Mill. in vivo and in vitro
Journal of Agricultural and Food Chemistry 1992.0
Analysis of volatile compounds in fresh healthy and diseased peppers (Capsicum annuum L.) using solvent free solid injection coupled with gas chromatography-flame ionization detector and confirmation with mass spectrometry
Journal of Pharmaceutical and Biomedical Analysis 2007.0
Flavour profile of capers (Capparis spinosa L.) from the Eolian Archipelago by HS-SPME/GC–MS
Food Chemistry 2007.0