中、日、韩三国紫菜中总砷和无机砷的初步检测  

Comparison of total arsenic and inorganic arsenic contents in processed Pyropia among China,Japan and South Korea

作　　者：杜晶[1] 马家海[1] 张勤[1] 孙彬[1] 黄健 沈辉[3] 

机构地区：[1]上海海洋大学农业部水产种质资源与养殖生态重点开放实验室,上海201306 [2]福建省水产技术推广总站,福州350003 [3]江苏省海洋水产研究所,南通226007

出　　处：《海洋渔业》2015年第5期465-472,共8页Marine Fisheries

基　　金：国家海洋局海洋公益性行业科研专项(201105023)

摘　　要：为比较中国、日本、韩国紫菜加工品中的总砷和无机砷含量,分别用氢化物原子荧光光度法和银盐法检测2012~2013年中国、日本、韩国紫菜加工品的总砷含量和无机砷含量。结果显示：中国坛紫菜（Pyropia haitanensis）加工品、中国条斑紫菜（Pyropia yezoensis）加工品、日本条斑紫菜加工品和韩国条斑紫菜加工品的总砷含量分别为21.58~60.25 mg·kg-1、17.96~33.79 mg·kg-1、11.18~38.12 mg·kg-1、17.76~41.87mg·kg-1,其均值分别为41.74、26.39、25.81、29.09 mg·kg-1。中国坛紫菜加工品、中国条斑紫菜加工品、日本条斑紫菜加工品和韩国条斑紫菜加工品的无机砷含量分别为0.104~0.368 mg·kg-1、0.105~0.328 mg·kg-1、0.032~0.321 mg·kg-1、0.093~0.335 mg·kg-1,其均值分别为0.240、0.210、0.190、0.220 mg·kg-1。中国坛紫菜加工品的总砷和无机砷含量均明显高于中、日、韩三国条斑紫菜加工品（P〈0.01）。中国条斑紫菜和日本条斑紫菜加工品的总砷含量差异不显著（P〉0.05）,均显著低于韩国条斑紫菜加工品（P〈0.01）。日本条斑紫菜加工品的无机砷含量最低,中国条斑紫菜加工品的无机砷含量稍低于韩国条斑紫菜加工品,但两者间的差异不显著（P〉0.05）。紫菜中的总砷和无机砷呈正相关关系（P〈0.01）,且无机砷含量仅占总砷含量的0.21%~1.54%。本研究的所有紫菜加工品的无机砷含量都远低于《GB/T 23597-2009干紫菜》中无机砷的安全限量标准1.5 mg·kg-1。Pyropia is popular edible and economic seaweed with rich nutrition and unique taste. China, Japan and South Korea are the main producing countries of Pyropia. As the main cultivated species, Pyropia haitanensis is endemic to China. Pyropia is known to contain high concentrations of arsenic in comparison to terrestrial plants owing to its strong ability to absorb arsenic from seawater. Arsenic and its compounds were proved to be a carcinogen by the international agency for research on cancer （IARC）. The arsenic in seaweeds exists in various forms. Arsenical toxicity strongly depends on chemical forms. The toxicity of trivalent inorganic arsenic is higher than that of pentavalent inorganic arsenic, the latter is higher than that of organic arsenic. Whereas, organoarsenicals are generally considered to be non-toxic. As a major country of laver production and export, it is imperative for China to understand the quality of laver in Japan and South Korea. The study could provide data for improving the standard of arsenic in Chinese laver products, offer scientific and technological support for safety and quality control of laver food in China, and promote sustainable and healthy development of the industry and laver import and export trade. According to the distribution of major laver cultivation areas and actual production areas, samples ofPyropia haitanensis were collected in Fujian Province from Fuding, Xiapu, Lianjiang, Putian, Quanzhou, Zhangpu. Samples of Pyropia yezoensis in China were collected in Jiangsu Province from Lianyungang, Dafeng, Huanyu port of Rudong, Beiyu port of Rudong, Haimen. Five batches of laver were harvested during the entire production cycle of 2012 - 2013. 90 samples of Pyropia haitanensis products and 75 samples of Pyropia yezoensis products in China were collected from 11 laver cultivation sea areas in Jiangsu Province and Fujian Province based on different harvesting batches. 30 samples of Pyropia yezoensis products from the Ariake Sea, Seto Inland Sea and Chiba-ken in Japan and 23

关 键 词：中国 日本 韩国 总砷 无机砷 

分 类 号：S985.42[农业科学—捕捞与储运]