Single-step chromatography for simultaneous purification of C-phycocyanin and allophycocyanin with high purity and recovery from Spirulina (Arthrospira) platensis
文献类型: 外文期刊
第一作者: Yan, Shi-Gan
作者: Yan, Shi-Gan;Su, Hai-Nan;Zhang, Xi-Ying;Chen, Xiu-Lan;Zhou, Bai-Cheng;Zhang, Yu-Zhong;Zhu, Li-Ping;Yan, Shi-Gan
作者机构:
关键词: C-phycocyanin;Allophycocyanin;Anion exchange chromatography;pH gradient;Purification
期刊名称:JOURNAL OF APPLIED PHYCOLOGY ( 影响因子:3.215; 五年影响因子:3.612 )
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收录情况: SCI
摘要: The cyanobacterium Spirulina (Arthrospira) platensis is a good source of phycobiliprotein purification. C-phycocyanin (C-PC) is the major phycobiliprotein, while allophycocyanin (APC) is less abundant in S. platensis. Previously reported methods for C-PC purification are only able to offer either high purity or high efficiency. This paper describes one-step anion exchange chromatography method with continuous pH gradient elution for simultaneous purification of C-PC and APC with high purity and highrecovery. Crude C-PC and APC were extracted and concentrated by ammonium sulfate fractionation at saturation of 25% and 60%, then purified on a DEAE-Sepharose Fast Flow chromatography column with continuous pH gradient elution from pH 5.0 to 3.6. After this single-step chromatography, C-PC and APC with high purity and recovery were simultaneously obtained. The purity ratios of C-PC and APC reached 5.59 (A620/A280) and 5.19 (A650/A280), respectively. Their purity was further demonstrated by electrophoresis and fluorescence emission spectroscopy. Moreover, the total recovery yield of pure C-PC and APC were 67.04% and 80.0%, representing 111.83 and 29.28 mg g~(-1) lyophilized weight, respectively. The obtained C-PC and APC remained stable over a pH rangeof 4–9. This purification method for high purity and recovery of C-PC and APC proved to be fairly efficient compared with previously reported methods.
分类号: Q94
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