DocumentCode
3324939
Title
Notice of Retraction
Extraction and Antioxidant Activities of Oligosaccharides from Different Parts of the Ascidian Styela Clava
Author
Minglv Sun ; Bin Chen ; Aili Jiang ; Changhai Wang
Author_Institution
Yantai Inst. of Coastal Zone Res., Chinese Acad. of Sci., Yantai, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
4
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The crude water-soluble oligosaccharides, coded as TOS, VOS and BOS, were isolated from tunica, viscera and whole body of the ascidian Styela clava, which chemical and physical characteristics were determined by several chemical methods, as well as their antioxidant activities by various in vitro assay systems. TOS with the lowest yield had higher sulfate and uronic acid content than the other two samples. The EC50 of TOS, VOS and BOS were 6.32, 3.45 and 5.55 mg/mL against hydroxyl radical and 1.35, 0.77 and 0.90 mg/mL against DPPH radicals, respectively. VOS showed the highest antioxidant activities among three samples. The results indicated that crude oligosaccharide extracted from different parts of Styela clava had antioxidant activities, which could be explored as novel potential antioxidants.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The crude water-soluble oligosaccharides, coded as TOS, VOS and BOS, were isolated from tunica, viscera and whole body of the ascidian Styela clava, which chemical and physical characteristics were determined by several chemical methods, as well as their antioxidant activities by various in vitro assay systems. TOS with the lowest yield had higher sulfate and uronic acid content than the other two samples. The EC50 of TOS, VOS and BOS were 6.32, 3.45 and 5.55 mg/mL against hydroxyl radical and 1.35, 0.77 and 0.90 mg/mL against DPPH radicals, respectively. VOS showed the highest antioxidant activities among three samples. The results indicated that crude oligosaccharide extracted from different parts of Styela clava had antioxidant activities, which could be explored as novel potential antioxidants.
Keywords
biochemistry; chemical analysis; macromolecules; molecular biophysics; organic compounds; pharmaceuticals; zoology; BOS crude water soluble oligosaccharide; DPPH radicals; Styela clava tunica; Styela clava viscera; TOS crude water soluble oligosaccharide; VOS crude water soluble oligosaccharide; ascidian; chemical methods; in vitro assay systems; oligosaccharide antioxidant activities; oligosaccharide extraction; Absorption; Chemicals; Data mining; In vitro; Infrared spectra; Temperature measurement; Viscera;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location
Wuhan
ISSN
2151-7614
Print_ISBN
978-1-4244-5088-6
Type
conf
DOI
10.1109/icbbe.2011.5780431
Filename
5780431
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