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Title

Marine chondroitin sulfate of defined molecular weight by enzymatic depolymerization

AuthorsValcárcel, J.; García, Miriam R. ; Sampayo, Lucía F.; Vázquez, José Antonio
KeywordsChondroitin sulfate
Glycosaminoglycan
Hyaluronidase
Chondroitinase
Enzymatic depolymerization
Depolymerization kinetics
Issue Date2020
PublisherElsevier
CitationCarbohydrate Polymers 229: 115450 (2020)
AbstractChondroitin sulfate (CS) is a sulfated glycosaminoglycan with diverse biological activities, which are influenced by molecular weight (Mw) and sulfation pattern. In the present work, we take advantage of the characteristic high Mw of fish CS (51–70 kDa) to obtain lower Mw fragments with hyaluronidase and chondroitinase ABC. With this aim, we present a pseudo-mechanistic model capable of reproducing the decrease in Mw of CS from five different fish species over 24 h at four enzyme to substrate ratios. The fitting parameters of the model for each species allow to establish conditions of reaction to produce CS of the desired Mw. Furthermore, the main features of the sulfation pattern of fish CS remain in the depolymerized fragments, highlighting the feasibility of the proposed approach
Description9 pages, 4 figures, 4 tables
Publisher version (URL)https://doi.org/10.1016/j.carbpol.2019.115450
URIhttp://hdl.handle.net/10261/193588
DOI10.1016/j.carbpol.2019.115450
ISSN0144-8617
E-ISSN1879-1344
Appears in Collections:(IIM) Artículos
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