Abstract
In this paper, studies were carried out to extract astaxanthin from discharged wastewater during the production of chitin and to reveal the scavenging effect of the obtained pigment on 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical. Different ratios of dichloromethane/methanol (V/V) were used to extract astaxanthin. When the ratio of dichloromethane/methanol was 2:8 and the ratio between the mixed organic solvent (dichloromethane/methanol, 2:8, V/V) and wastewater was 1:1, the highest yield of pigment was obtained (8.4 mg/50 mL). The concentration of free astaxanthin in the obtained pigment analyzed by HPLC was 30.02%. The obtained pigment possessed strong scavenging ability on DPPH radical and IC50 was 0.84mg/ml.
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Chen, X., Yang, S., Xing, R. et al. Recovery of astaxanthin from discharged wastewater during the production of chitin. J. Ocean Univ. China 11, 249–252 (2012). https://doi.org/10.1007/s11802-012-1817-x
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DOI: https://doi.org/10.1007/s11802-012-1817-x