1995
DOI: 10.1016/0141-0229(94)00057-x
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Structural constraints affecting the initial enzymatic hydrolysis of recycled paper

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Cited by 68 publications
(39 citation statements)
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“…6. Refining of unprinted newspaper fibers resulted in considerably higher surface areas, which have been reported to determine the rate and degree of hydrolysis of the substrate (Nazhad et al 1995). The sugar conversion at 4 FPU/g was improved by refining to 43% and 56% using 10,000 revolutions of PFI.…”
Section: Effect Of Mechanical Refining On Enzymatic Hydrolysismentioning
confidence: 95%
“…6. Refining of unprinted newspaper fibers resulted in considerably higher surface areas, which have been reported to determine the rate and degree of hydrolysis of the substrate (Nazhad et al 1995). The sugar conversion at 4 FPU/g was improved by refining to 43% and 56% using 10,000 revolutions of PFI.…”
Section: Effect Of Mechanical Refining On Enzymatic Hydrolysismentioning
confidence: 95%
“…It is due to the irreversible alterations in the cells structure during the drying (Oksanen et al 1997;Kim et al 2000;Diniz et al 2004). The worse properties of the recycled fibres in comparison with the primary fibres can be caused by hornification but also by the decrease of the hydrophilic properties of the fibres surface during the drying due to the redistribution or migration of resin and fat acids to the surface (Nazhad & Paszner 1994;Nazhad 2005). Okayama (2002) observed the enormous increase of the contact angle with water which is related to the fiber inactivation at the recycling.…”
Section: Paper Recyclingmentioning
confidence: 99%
“…However, there were very few investigations into the effect of recycling on sheet properties until late 1960's. From then until the late 1970's, a considerable amount of work was carried out to identify the effects of recycling on pulp properties and the cause of these effects (Nazhad 2005;Nazhad & Paszner 1994). In the late 1980's and early 1990's, recycling issues have emerged stronger than before due to the higher cost of landfills in developed countries and an evolution in human awareness.…”
Section: Introductionmentioning
confidence: 99%
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“…There is no doubt that the initial hydrolysis rate or the final hydrolysis yield is influenced by physicochemical structural features of lignocellulosic substrates. It has been reported that low cellulose degree of polymerization (DP), crystallinity (CrI), lignin content and high cellulose accessible surface area favor enzymatic hydrolysis [6,7,8,9]. On the other hand, a rapid decrease in the conversion rate was repeated observed as the hydrolysis time extended.…”
Section: Introductionmentioning
confidence: 99%