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Título:
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Radiation pretreatments of cellulose materials for the enhancement of enzymatic hydrolysis II. Wood chips, paper, grain straw, hay, kapok
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Autores:
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ARDICA, S. ;
CALDERARO, E. ;
CAPPADONA, C.
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Tipo de documento:
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texto impreso
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ISBN/ISSN/DL:
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31659
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Nota general:
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ISBN:
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Langues:
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Inglés
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Clasificación:
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CELULOSA
HIDRÓLISIS ENZIMÁTICA
PAJA
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Resumen:
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The effect of y-ray pre-irradiation of cellulose materials such as wood chips, paper, grain straw, hay and kapok on glucose production on enzymatic hydrolysis by celluiase has been investigated. These materials have been irradiated in air, water and acetate buffer solution over the dose range 103-4 x 106 Gy. In the relatively low dose range, up to about 5 x Iti Gy, the glucose yields after enzymatic hydrolysis are practically insensitive to radiation. At higher dose levels, up to 1.7-2 x 106 Gy, the pre-irradiation becomes very effective on enzymatic cellulose conversion. It has been found that the radiation-induced degradation of cellulose into low molecular weight polysaccharides is dependent on the nature and chemical composition of the cellulose materials and on the radiation environmental conditions. Further increases of dose causes radiation-induced structural modifications in polysaccharides previously produced, which can lead to a decrease in glucose production by enzymatic hydrolysis.
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Nota de contenido:
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En: Radiation Physics and Chemsitry . -- 26 (6) : 701-704 (1985)
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