Results 81 to 86 of about 376 (86)
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Enzymatic Galactosylation of Cello‐ and Chito‐Oligomers
Journal of Carbohydrate Chemistry, 2008Terminal galactosylations of cello‐ and chito‐oligomers are studied employing galactosyltransferase with and without α‐lactalbumin. The lactose synthase complex allows just for galactosylation of cellobiose in lower yield but not for higher cello‐oligomers. In contrast, the affinity in galactosylation of chito‐oligomers increases with higher members to
Harald Streicher +2 more
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Neuroscience Letters, 2014
Chitooligosaccharides (COSs) are obtained from the in vivo and in vitro degradation of chitosan, which is a natural biomaterial used successfully for peripheral nerve repair. Also, COSs have been reported to be beneficial for the nervous system and especially able to promote peripheral nerve regeneration.
Maorong, Jiang +5 more
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Chitooligosaccharides (COSs) are obtained from the in vivo and in vitro degradation of chitosan, which is a natural biomaterial used successfully for peripheral nerve repair. Also, COSs have been reported to be beneficial for the nervous system and especially able to promote peripheral nerve regeneration.
Maorong, Jiang +5 more
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Carbohydrate Polymers, 2012
Chitooligomers (COS) with degree of polymerization (DP) ranging from 2 to 12 was prepared by acid hydrolysis of chitosan and five fractions were separated from the prepared COS by CM Sephadex C-25 column. The fractions were desalted by activated charcoal extraction. The components of each fraction were analyzed by TLC, HPLC and MALDI-TOFMS.
Kecheng Li +6 more
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Chitooligomers (COS) with degree of polymerization (DP) ranging from 2 to 12 was prepared by acid hydrolysis of chitosan and five fractions were separated from the prepared COS by CM Sephadex C-25 column. The fractions were desalted by activated charcoal extraction. The components of each fraction were analyzed by TLC, HPLC and MALDI-TOFMS.
Kecheng Li +6 more
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Polymer Degradation and Stability, 2005
Chitosan with 91.7% deacetylation was hydrolysed by a commercially available and efficient neutral protease. The degradation was monitored by gel permeation chromatography. Factors affecting the enzymatic hydrolysis of chitosan were studied. The structures of degraded chitosans were characterised by X-ray diffraction, Fourier transform infrared and ...
Jin Li +5 more
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Chitosan with 91.7% deacetylation was hydrolysed by a commercially available and efficient neutral protease. The degradation was monitored by gel permeation chromatography. Factors affecting the enzymatic hydrolysis of chitosan were studied. The structures of degraded chitosans were characterised by X-ray diffraction, Fourier transform infrared and ...
Jin Li +5 more
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Journal of Applied Polymer Science, 2006
AbstractNeutral protease was immobilized on glutaraldehyde‐pretreated N‐succinyl chitosan hydrogel beads and the biocatalyst obtained was used for the preparation of low molecular weight chitosan and chito‐oligomers with molecular weight of 1.9–23.5 kDa from commercial chitosan. Factors affecting the chitinolytic hydrolysis were described.
Jin Li +4 more
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AbstractNeutral protease was immobilized on glutaraldehyde‐pretreated N‐succinyl chitosan hydrogel beads and the biocatalyst obtained was used for the preparation of low molecular weight chitosan and chito‐oligomers with molecular weight of 1.9–23.5 kDa from commercial chitosan. Factors affecting the chitinolytic hydrolysis were described.
Jin Li +4 more
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Journal of Applied Polymer Science, 2006
AbstractEnzyme hydrolysis with immobilized neutral protease was carried out to produce low molecular weight chitosan (LMWC) and chito‐oligomers. Neutral protease was immobilized on (CS), carboxymethyl chitosan (CMCS), and N‐succinyl chitosan (NSCS) hydrogel beads.
Jin Li +6 more
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AbstractEnzyme hydrolysis with immobilized neutral protease was carried out to produce low molecular weight chitosan (LMWC) and chito‐oligomers. Neutral protease was immobilized on (CS), carboxymethyl chitosan (CMCS), and N‐succinyl chitosan (NSCS) hydrogel beads.
Jin Li +6 more
openaire +1 more source