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Limitations of the NNS assay for reducing sugars from saccharified lignocellulosics. [Trichoderma reesei]

Journal Article · · Biotechnol. Bioeng.; (United States)
An evaluation is presented of two DNS (2,4-dinitrosalicylic acid) assay procedures as well as high-performance liquid chromatography (HPLC) and YSI Glucose Analyzer analyses of sugars resulting from enzymatic saccharification of lignocellulosics. Trichoderma reesei was used to produce the cellulase system containing endoglucanase, cellobiohydrolase and cellobiase. Data suggest that the DNS assay can be used as an accurate analytical method for the evaluation of reducing sugars in pure solution as well as in supernatants from enzymatic saccharification if glucose is the sole product. However, only specific assay methods such as HPLC and YSI-type glucose analyzers should be used for the analysis of saccharides produced from the hydrolysis of native or pretreated lignocellulosics since the DNS assay is susceptible to interferences and therefore results in inaccurate analyses.
Research Organization:
Univ. of Arkansas, Fayetteville
OSTI ID:
6416337
Journal Information:
Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 26:7; ISSN BIBIA
Country of Publication:
United States
Language:
English