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Economic evaluation of enzymatic hydrolysis of phenol‐pretreated wheat straw
Author(s) -
Zacchi Guido,
Skoog Kerstin,
HahnHägerdal Bärbel
Publication year - 1988
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260320408
Subject(s) - straw , enzymatic hydrolysis , phenol , hydrolysis , chemistry , enzyme , pulp and paper industry , biochemistry , organic chemistry , microbiology and biotechnology , biology , engineering , inorganic chemistry
Abstract Experimental data from the enzymatic hydrolysis of phenol‐pretreated Swedish wheat straw have been used to evaluate the cost fractions of capital and utility, enzyme, and raw material. Two different raw material prices and varying enzyme prices have been used. The evaluation is based on an empirical model for the enzymatic hydrolysis and a computer program where utility and equipment, enzyme, and raw material prices can be varied. The optimal residence time for the enzymatic hydrolysis is in the range of 70–110 h. A fed‐batch procedure with substrate concentrations higher than 10% oven‐dried material (ODM) and enzyme concentrations in the range (6–10) · 10 6 FPU/ton ODM should be used.