کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8334113 | 1540269 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Separation and scavenging superoxide radical activity of chitooligomers with degree of polymerization 6-16
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
The separation of chitooligomers (COS) with well-defined degree of polymerization (DP) is of interest to further study their bioactivity. However, there has been no report on separation of chitooligomers with DPÂ >Â 6 and the activity of these oligomers is unknown. This paper focuses on separating COS with DPÂ >Â 6 and five fractions were separated from the prepared fully deacetylated chitooligomers mixture by CM Sepharose Fast Flow column and analyzed by HPLC, which mainly contained glucosamine oligomers with DP6-7 (41.31%, 50.22%), DP7-8 (22.47%, 70.13%), DP9-10 (53.06%, 27.99%), DP10-12 (18.45%, 49.36%, 22.31%), and DPÂ >Â 12, respectively. The superoxide radical scavenging activity of each fraction was investigated. The oligomers with DP ranging from 10 to 12 exhibited higher scavenging activity than other fractions and in combination with the DP distribution of fractions, it was further concluded that the chitooligomers with DP11 was likely to be optimal for scavenging superoxide radical activity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 51, Issue 5, December 2012, Pages 826-830
Journal: International Journal of Biological Macromolecules - Volume 51, Issue 5, December 2012, Pages 826-830
نویسندگان
Kecheng Li, Ronge Xing, Song Liu, Yukun Qin, Bing Li, Xueqin Wang, Pengcheng Li,