[Essential oil analysis and trace element study of the roots of Piper nigrum L].
Pepper roots contain 0.39% of essential oil. By GC-MS method, 44 peaks and 22 compounds were obtained and identified. The major component was trans-caryophyllene. The trace metal content analysis showed that the heavy metals were under the safety level.
Institute of Chinese Material Medica, China Academy of Traditional Chinese Medicine, Beijing 100700.
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D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D019684:Magnoliopsida / Q000737:chemistry; D009822:Oils, Volatile / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D014131:Trace Elements / Q000032:analysis*
D004365:Drugs, Chinese Herbal; D009822:Oils, Volatile; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; D014131:Trace Elements; C024714:caryophyllene