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不确定度评定在赤砂糖菌落总数检验中的应用

林雅慧 陈海宁 邓倩南 刘学文

甘蔗糖业Issue(3):59-62,4.
甘蔗糖业Issue(3):59-62,4.

不确定度评定在赤砂糖菌落总数检验中的应用

Evaluation of Uncertainty for Measurement Bacteria Aerobic Count Examination in Brown Granulated Sugar

林雅慧 1陈海宁 2邓倩南 1刘学文2

作者信息

  • 1. 广州甘蔗糖业研究所 广东省甘蔗改良与生物炼制重点实验室,广东广州510316
  • 2. 国家糖业质量监督检验中心,广东广州510316
  • 折叠

摘要

Abstract

The critical value of uncertainty evaluation of measurement results for bacteria aerobic count was judged in thebrown granulated sugar. The bacteria aerobic count of a certain sample and the similar samples was tested according to the method of GB4789.2-2010 “Food Microbiology Examination: Aerobic Plate Count”, and then the uncertainty of testing data was analyzed. The extended uncertainty value of aerobic bacterial count was 0.030 for one certain brand of brown granulated sugar, the lgX ranged from±0.030. While the expanded uncertainty value was 0.186 for 20 different samples, the lgXj ranged from±0.186. The study showed that the exponential methodprocessing the results of bacteria aerobic count could judge the data at the critical value. Evaluation method of merging sample standard deviation was more practical than the single sample average standard deviation, which was more suitable for each sample test results.

关键词

检验/菌落总数/不确定度评定/赤砂糖

Key words

Examination/Bacteria aerobic count/Evaluation uncertainty/Brown granulated sugar

分类

轻工纺织

引用本文复制引用

林雅慧,陈海宁,邓倩南,刘学文..不确定度评定在赤砂糖菌落总数检验中的应用[J].甘蔗糖业,2016,(3):59-62,4.

基金项目

广东省省级科技计划项目“制糖产业升级关键技术与食品安全检测”(2013B061800023);“食糖与功能性糖检验与标准化服务平台”(2014B040404054) (2013B061800023)

甘蔗糖业

OACSTPCD

1005-9695

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