怀化市食品包装用箬叶所属物种调查和7种元素含量测定  

Species Survey and Seven Elements Determination of Indocalamus Leaves for Food Packaging in Huaihua

作　　者：刘立萍 陈慧 罗宏泉 王宁[1] 唐序文 杨兵[1] LIU Li-ping;CHEN Hui;LUO Hong-quan;WANG Ning;TANG Xu-wen;YANG Bing(Institute of Food and Medicine Quality Inspection,Huaihua 418000,China;Institute of Product and Commodity Quality Inspection and Supervision,Huaihua 418000,China)

机构地区：[1]怀化市食品药品检验所,湖南怀化418000 [2]怀化市产品商品质量监督检验所,湖南怀化418000

出　　处：《包装工程》2022年第5期122-129,共8页Packaging Engineering

基　　金：湖南省市场监督管理局科技计划(2020KJJH69)。

摘　　要：目的 对怀化市食品包装用箬叶所属物种开展调查,测定其中铜、锌、铅、镉、铬、汞和砷7种金属元素的含量,为制定食品包装用箬叶的安全标准提供基础数据。方法 以民间走访和标本采集的方法,调查怀化市13个行政县市区的食品包装用箬竹叶所属物种;以茶叶标准物质成分测定为质量控制方式,用原子吸收光谱法和氢化物发生原子荧光光谱法测定箬叶中铜、锌、铅、镉、铬、汞和砷7种金属元素含量。结果 通过调查和物种鉴定发现,怀化市食品包装用箬叶所属物种主要有5个,分别是阔叶箬竹、箬竹、美丽箬竹、广东箬竹和硬毛箬竹。箬叶中7种元素的含量差别较大,且与物种没有关联,锌含量为12.93~47.10 mg/kg,汞含量为0.012~0.94 mg/kg,铜含量为3.02~9.39 mg/kg,铬含量为2.10~15.96 mg/kg,铅含量为0.33~2.55 mg/kg,镉含量为0.015~0.37 mg/kg,砷含量为0.044~0.44 mg/kg。结论 怀化市食品包装用箬叶所属物种主要有5个,其中以阔叶箬竹分布最广,阔叶箬竹叶使用最广泛,箬叶中7种元素含量差别较大,该研究结果为箬竹栽培的物种选择和箬叶安全标准制定提供了参考依据。The work aims to investigate the species of Indocalamus leaves used for food packaging in Huaihua and determine the contents of Cu, Zn, Pb, Cd, Cr, Hg and As in the samples, so as to provide basic data for establishing safety standard of Indocalamus leaves for food packaging. The species of Indocalamus leaves used in food packaging were investigated in 13 administrative cities, districts and counties through folk interviews and sample collection. With the content determination of tea reference materials as the quality control method, the contents of 7 metal elements, Cu, Zn, Pb,Cd, Cr, Hg and As in the Indocalamus leaves were determined by Atomic Absorption Spectroscopy and Hydride Atomic Fluorescence Spectroscopy. According to the survey and species identification, the Indocalamus leaves used for food packaging in Huaihua included Indocalamus latifolius, Indocalamus tessellatus(Munro) Keng f., Indocalamus decorus,Indocalamus guangdongensis and Indocalamus hispidus. The contents of seven elements in Indocalamus leaves were quite different and had no relation with the species. The contents of Zn were ranging from 12.93 to 47.10 mg/kg, Hg from 0.012 to 0.94 mg/kg, Cu from 3.02 to 9.39 mg/kg, Cr from 2.10 to 15.96 mg/kg, Pb from 0.33 to 2.55 mg/kg, Cd from 0.015 to 0.37 mg/kg, and As from 0.044 to 0.44 mg/kg. There are 5 species of Indocalamus for food packaging in Huaihua area, among which Indocalamus latifolius is the most widely distributed and used.The contents of 7 elements in Indocalamus leaves were quite different. The results of this study provide a reference for the selection of Indocalamus species for cultivation and the establishment of safety standards for Indocalamus leaves.

关 键 词：食品包装 箬叶 物种调查 金属元素测定 原子吸收光谱法 氢化物发生原子荧光光谱法 

分 类 号：TS201.6[轻工技术与工程—食品科学]