Title :
Notice of Retraction
Antioxidant Activities of Crude and Fractionated Extracts from the Ascidian Styela clava
Author :
Bin Chen ; Minglv Sun ; Aili Jiang ; Changhai Wang
Author_Institution :
Yantai Inst. of Coastal Zone Res., Chinese Acad. of Sci., Yantai, China
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.
Abstract-The antioxidant activities of crude and fractionated extracts from the ascidian Styela clava were determined using 1, l-diphenyl-2-picrylhydrazyl (DPPH) system, reducing power assay and β-carotene method. Results indicated that the viscera extract showed the highest activities among three different crude extracts obtained from S. clava. In addition, the ethyl acetate soluble fraction isolated from viscera extract exhibited obvious antioxidant activities, which EC50were 54.91 and 59.86 μg/mL on DPPH radicals scavenging effect and β-carotene bleaching assay, respectively. Moreover, its reducing power was 152.0 mg/g dry weight of AscAE.
Keywords :
biochemistry; pharmaceuticals; zoology; 1,1-diphenyl-2-picrylhydrazyl; DPPH system; Styela clava crude extracts; Styela clava fractionated extracts; antioxidant activities; ascidian; beta-carotene method; ethyl acetate soluble fraction; reducing power assay; viscera extract; Additives; Chemicals; Diseases; Petroleum; Stress; Temperature measurement; Viscera;
Conference_Titel :
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-5088-6
DOI :
10.1109/icbbe.2011.5780437
