食品与发酵工业 >

2023 , Vol. 49 >Issue 4: 282 - 287

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.032065

分析与检测

湖南省市售豆制品中铝含量测定及差异性分析

  • 薛敏敏 ,
  • 刘芳芳 ,
  • 朱礼 ,
  • 吴海智 ,
  • 陈瑶 ,
  • 卢超
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  • (湖南省产商品质量检验研究院,湖南 长沙,410007)
硕士,工程师(通信作者,E-mail:356355093@qq.com)

收稿日期: 2022-04-20

  修回日期: 2022-05-16

  网络出版日期: 2023-03-20

基金资助

湖南省市场监督管理局科技计划项目(2022KJJH46)

收起

Determination and difference analysis of aluminum content in commercial soybean products in Hunan province

  • XUE Minmin ,
  • LIU Fangfang ,
  • ZHU Li ,
  • WU Haizhi ,
  • CHEN Yao ,
  • LU Chao
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  • (Hunan Testing Institute of Product and Commodity Supervision, Changsha 410007, China)

Received date: 2022-04-20

  Revised date: 2022-05-16

  Online published: 2023-03-20

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摘要

该研究优化GB 5009.268—2016《食品安全国家标准 食品中多元素的测定》中的前处理技术,利用超级微波消解-电感耦合等离子体质谱法测定豆制品中铝含量。对2021年采集的湖南省市售豆制品三大类15小类共计1 088份样品进行铝含量测定,并依据现有国家限量标准对检测结果进行差异性分析。结果表明,优化后的方法能够有效测定豆制品中的铝,标准曲线在0~1 000 μg/L质量浓度范围内线性关系良好,相关系数为0.999 8,加标回收率为93%~109%,相对标准偏差为1.7%~5.2%,均能满足测定要求。在1 088份豆制品样品中,铝平均含量为30.29 mg/kg,相对标准偏差为0.71,仅在非发酵性豆制品大类中的豆干与豆皮两小类中,各存在1份样品超过GB 2760—2014《食品安全国家标准 食品添加剂使用标准》中规定的豆制品中铝残留量限量标准100 mg/kg(干样品,以Al计),分别达到了155、170 mg/kg,总体合格率为99.82%。2021年湖南省市售豆制品中铝的安全卫生质量较好,但铝含量的类别差异性与地区差异性具有统计学意义(P<0.05),同时部分地区的非发酵性豆制品存在一定程度的铝污染风险,应引起充分重视。

关键词： 豆制品; 铝; 含量测定; 差异性分析; 超级微波消解; 电感耦合等离子体质谱法

本文引用格式

薛敏敏 , 刘芳芳 , 朱礼 , 吴海智 , 陈瑶 , 卢超 . 湖南省市售豆制品中铝含量测定及差异性分析[J]. 食品与发酵工业, 2023 , 49(4) : 282 -287 . DOI: 10.13995/j.cnki.11-1802/ts.032065

Abstract

The content of aluminum in commercial soybean products in Hunan province in 2021 was studied to provide evidence for the supervision and management of relevant departments. The pretreatment technology in GB 5009.268—2016 national standard of food safety for determination of multiple elements in food was optimized, and then the content of aluminum in soybean products was determined by ultra-wave digestion-inductively coupled plasma mass spectrometry. For 1 088 samples collected from 3 categories and 15 subcategories of commercial soybean products in Hunan province in 2021, their aluminum contents were tested and the difference was also analyzed according to existing national limitation standards. The optimized method could effectively determine the content of aluminum in soybean products. The linearity of the standard curve was good in the range of 0-1 000 μg/L and the linear correlation coefficient was 0.999 8. Moreover, the recovery percent and the relative standard deviation (RSD) were 93%-109% and 1.7%-5.2%, respectively, so the method could meet the determination requirements. The mean and the RSD of the aluminum content of 1 088 samples of soybean products were 30.29 and 0.71 mg/kg, respectively. However, there were only two samples that had higher aluminum contents than the limitation standard of 100 mg/kg (dry sample, in Al) of the residual amount of aluminum in soybean products, which was established by GB 2760—2014 national standard of food safety for standards of using food additives. These two samples belonged to two subcategories of dried tofu and tofu skin in non-fermented bean products and had aluminum contents of 155 and 170 mg/kg, respectively. In a word, the overall qualified rate was 99.82%. The safety and health quality of aluminum in soybean products in Hunan province in 2021 were good, but the region difference and the category difference were statistically significant (P<0.05). Meanwhile, the non-fermented bean products in some districts have a certain degree of risk of aluminum pollution, which should be fully valued.

Key words： soybean products; aluminum; content determination; difference analysis; ultra-wave digestion; inductively coupled plasma mass spectrometry

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