Grain Research Laboratory, Canadian Grain Commission, Winnipeg, Manitoba, Canada.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2009 Jul;26(7):1002-12. doi: 10.1080/02652030902894389.
Canada is a significant exporter of field peas and, thus, issues of food safety are important in all grain and food products within the international marketplace. Environmental contaminants, such as trace elements, may be present in all foods and, as a result, international standards have been established for a number of toxic trace elements, such as cadmium, lead, mercury and arsenic, in raw food commodities and food products. The Canadian Grain Commission has undertaken a baseline study of various trace elements in Canadian peas to ensure compliance with international food safety legislation. Mean total cadmium content was found to be 0.023 mg kg(-1); arsenic and lead mean values were below the method limit of quantification of 0.050 mg kg(-1) and the total mean mercury level was below the quantification level of 0.002 mg kg(-1). All measured values in the study were below the maximum residue levels (MRLs) established by the FAO and WHO in the Codex Alimentarius. The mean total selenium content was 0.331 mg kg(-1), with 56% of the measured values exceeding the MRL established by the People's Republic of China (PRC) of 0.3 mg kg(-1). No Codex MRL has been established for selenium as it is regarded as an essential trace element for human health and the PRC is currently reviewing its MRL for selenium in light of this fact. For those parts of the world where selenium-deficiency is of nutritional concern, the higher level of selenium in Canadian peas and their products may be of nutritional benefit.
加拿大是豌豆的主要出口国，因此食品安全问题在国际市场上所有谷物和食品中都很重要。环境污染物，如微量元素，可能存在于所有食物中，因此，国际标准已经为一些有毒微量元素，如镉、铅、汞和砷，在生食品和食品产品中制定。加拿大谷物委员会已经对加拿大豌豆中的各种微量元素进行了基线研究，以确保符合国际食品安全法规。发现总镉含量的平均值为 0.023 毫克/千克；砷和铅的平均值低于 0.050 毫克/千克的定量限，总汞水平低于 0.002 毫克/千克的定量限。研究中的所有测量值均低于粮农组织和世界卫生组织在食品法典中设定的最大残留限量（MRLs）。总硒含量的平均值为 0.331 毫克/千克，其中 56%的测量值超过了中华人民共和国（中国）设定的 0.3 毫克/千克的 MRL。由于硒被认为是人体健康所必需的微量元素，因此尚未为硒制定食品法典最大残留限量，中国目前正在根据这一事实审查其硒的最大残留限量。对于那些存在硒缺乏问题的地区，加拿大豌豆及其产品中较高的硒含量可能具有营养益处。
