Journal
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
Volume 23, Issue 1, Pages S93-S98Publisher
ELSEVIER
DOI: 10.1016/j.sjbs.2015.06.018
Keywords
Cellulase; Filter paper assay; IUPAC; Microplate-based assay
Categories
Funding
- Jilin Province Development
- Reform Commission [2011003-1]
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It is always a challenge to determine the total cellulase activity efficiently without reducing accuracy. The most common total cellulase activity assay is the filter paper assay (FPA) established by the International Union of Pure and Applied Chemistry (IUPAC). A new procedure to measure the FPA with microplate-based assay was studied in this work, which followed the main idea of IUPAC to dilute cellulase preparation to get fixed glucose release. FPAs of six cellulase preparations were determined with the microplate-based assay. It is shown that FPAs of cellulase Youtell, RCconc, R-10, Lerkam, Yishui and Sinopharm were 67.9, 46.0, 46.1, 27.4, 7.6 and 8.0 IU/ml respectively. There was no significant difference at the 95% confidence level between the FPA determined with IUPAC and the microplate-based assay. It could be concluded that the FPA could be determined by the microplate-based assay with the same accuracy and much more efficiency compared with that by IUPAC. (C) 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CCBY-NC-ND license.
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