Determination of Heavy Metals in Fruits of Capsicum annuum L. by inductively Coupled Plasma Mass Spectrometry
Capsicum annuum L. belonging to the family Solanaceae is a popular spice in Thailand. The mature fruits (long red pepper) are composed of carotenoid, capsaicinoid and ascorbic acid exhibiting physiological and pharmacological properties. Because of environmental pollution, these fruits might be contaminated with toxic heavy metals. Therefore, the objective of this study was to determine the concentrations of eleven heavy metals in long red pepper using nitric acid digestion followed by ICP-MS analysis. Thirteen samples of fresh fruits were collected from nine provinces located in the west of Thailand. The concentrations of toxic heavy metals including arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb) in all samples were lower than the permissible limits (4, 0.3, 0.02, and 10 mg/kg, respectively) while the concentrations of essential elements including copper (Cu) and zinc (Zn) were less than the permissible limits (20 and 100 mg/kg, respectively). The highest concentrations of aluminium (Al), chromium (Cr), iron (Fe), manganese (Mn), and nickel (Ni) found were 36.813, 0.345, 44.464, 32.172, and 1.623 mg/kg, respectively. The method adopted in this study could be valuable in quality control of edible spices for Thai people.
heavy metals Capsicum annuum ICP-MS long red pepper
Chutima Limmatvapirat Thawatchai Phaechamud Juree Charoenteeraboon
Department of Pharmaceutical Chemistry, Faculty of Pharmacy,Silpakorn University, Nakhon Pathom 7300 Department of Pharmaceutical Technology, Faculty of Pharmacy,Silpakorn University, Nakhon Pathom 730 Department of Biopharmacy, Faculty of Pharmacy,Silpakorn University, Nakhon Pathom 73000, Thailand
国际会议
Fourth International Conference on Advanced Design and Manufacturing(第四届先进设计与制造国际会议)
昆明
英文
135-138
2011-09-21（万方平台首次上网日期，不代表论文的发表时间）