The Enumeration of Yeasts and Moulds of NLFD for FEPAS in 2007

2007年藥物食品檢驗局參加英國FEPAS黴菌及酵母菌精準度實驗

王鳳英(Feng-Ing Wang)

《食品營養研究期刊》 1期 (2009/12) Pp. 10-15

摘要

在2007年有46個實驗室參加美國FEPAS，必需於時限內交出實驗結果。這些實驗是利用10g麵粉中摻有已定量的黴菌及酵母菌，進行檢驗黴菌及酵母菌的計數實驗。在所有被指定的進行檢驗數據中應計算評估出這份物質最精確正確的數值，經過FEPAS收集資料進行統計分析之後，訂出標準值及標準差，算出每個參與者的結果標準偏差值（Z-score），Z-score在正負2之內算為滿意值。這次的標準數據為4.71 log10cfu/g，在46個實驗室有41個是達到滿意程度（約占89%），本次本實驗室得到結果是滿意，Z值為1.1。

關鍵字

黴菌及酵母菌之計數 ； 精準度

並列摘要

Of the 46 participants to receive test materials, returned results for an examination within the time-scale demanded by the Scheme for FEPAS, in 2007. The test materials for enumeration of yeasts and moulds were 10g flour with moulds M 1536. The assigned value for each enumeration examination was calculated from the most appropriate measure of central tendency of participants' results were assessed based on the presence or absence of the target organism in the test materials issued. The target standard deviation was calculated using retrospective FEPAS data and in conjunction with the assigned value was used to derive a z-score for participarts' results. Z-Scores are considered satisfactory if -2≦z≦2.The assigned value is 4.71 log10cfu/g. Total number of results is 46. The number of satisfactory z-scores is 41. The satisfactory percent is 89. Our laboratory results is satisfactory and the z is 1.1.

並列關鍵字

Enumeration of yeasts and moulds ； FEPAS ； Proficiency testing