Method for Preparation of Wort for Color Determination

摘要

Repeatability and reproducibility coefficients of variation for the preparation of wort using the Celite method prior to color determination ranged from 0.9 to 3.5% and 3.0 to 8.0%, respectively, and were judged acceptable. Repeatability and reproducibility coefficients of variation for the preparation of wort using glass fiber filter paper method prior to color determination ranged from 0.9 to 1.1% and 2.4 to 7.1%, respectively, and were judged acceptable. Repeatability and reproducibility coefficients of variation for the preparation of wort using the 0.45-μm PTFE syringe filter disc method prior to color determination ranged from 0.5 to 1.6% and 2.3 to 6.7%, respectively, and were judged acceptable. Repeatability and reproducibility coefficients of variation for the preparation of wort using the 0.45-μm PVDF syringe filter disc method prior to color determination ranged from 0.7 to 1.4% and 2.1 to 7.5%, respectively, and were judged acceptable. Based on analysis of variance results, the four methods tested were not significantly different at a 95% confidence level.