Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Application in the Ethanol Fermentation of Immobilized Yeast Cells in
  Matrix of Alginate/Magnetic Nanoparticles, on Chitosan-Magnetite
  Microparticles and Cellulose-coated Magnetic Nanoparticles   Saccharomyces cerevisiae cells were entrapped in matrix of alginate and
magnetic nanoparticles and covalently immobilized on magnetite-containing
chitosan and cellulose-coated magnetic nanoparticles. Cellulose-coated magnetic
nanoparticles with covalently immobilized thermostable {\alpha}-amylase and
chitosan particles with immobilized glucoamylase were also prepared. The
immobilized cells and enzymes were applied in column reactors - 1/for
simultaneous corn starch saccharification with the immobilized glucoamylase and
production of ethanol with the entrapped or covalently immobilized yeast cells,
2/ for separate ethanol fermentation of the starch hydrolysates with the fixed
yeasts. Hydrolysis of corn starch with the immobilized {\alpha}-amylase and
glucoamylase, and separate hydrolysis with the immobilized {\alpha}-amylase
were also examined. In the first reactor the ethanol yield reached approx. 91%
of the theoretical; the yield was approx. 86% in the second. The ethanol
fermentation was affected by the type of immobilization, the initial particle
loading, feed sugar concentration and the dilution rate. The ethanol
productivity with entrapped cells reached 264.0 g/L.h at particle loading rate
70% and dilution rate 3.0 h-1 with reducing sugar concentration of 200.0 g/L.
The prepared magnetic particles with fixed yeast cells were stable at 4oC in
saline for more than 1 month. .

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The categories of this paper are: math-ph
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The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
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The categories of this paper are: eess
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: cond-mat
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th