{"title":"Accuracy and Precision of Assaying Starch-Liquefying Activity of Bacterial α-Amylase by JIS Method","authors":"Y. Miyashita, T. Kotaka","doi":"10.5458/JAG1972.38.291","DOIUrl":null,"url":null,"abstract":"工業用アミラーゼのJIS規格(K-7001)が平成2年9月1日に改正された.液化力試験方法については引き続き粘度法が採用されたが,精度の向上と個人差の縮小が図られた.この改正に当り,七つの試験室で,同じ一つの液化型アミラーゼ試料の液化力を,改正後の試験方法で,同じ6ロットのばれいしょ澱粉を使って,ロットごとに5回測定した.その結果, 1)本法は習熟を要するが,習熟者による測定の変動係数は約2~3%であった. 2)ばれいしょ澱粉のロット間には,基質としての品質の差が認められた. 3)各試験室の測定値の水準には,かなりの差が認められた.","PeriodicalId":17372,"journal":{"name":"Journal of the Japanese Society of Starch Science","volume":"141 1","pages":"291-296"},"PeriodicalIF":0.0000,"publicationDate":"1991-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Japanese Society of Starch Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5458/JAG1972.38.291","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}