您好,欢迎访问中国水产科学研究院 机构知识库!

A novel antioxidant protein of non-phycobiliprotein family derived from marine red alga Porphyra haitanensis

文献类型: 外文期刊

作者: Chuang, Pan 2 ; Tao, Fengting 2 ; Qi, Bo 2 ; Xiang, Huan 2 ; Chen, Shengjun 2 ; Yang, Xianqing 1 ;

作者机构: 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Natl Res & Dev Ctr Aquat Prod Proc, Key Lab Aquat Prod Proc,Minist Agr & Rural Affairs, Guangzhou 510300, Peoples R China

2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Natl Res & Dev Ctr Aquat Prod Proc, Key Lab Aquat Prod Proc,Minist Agr & Rural Affairs, Guangzhou, Peoples R China

3.Jiangsu Ocean Univ, Coinnovat Ctr Jiangsu Marine Bioind Technol, Lianyungang, Peoples R China

4.Sanya Trop Fisheries Res Inst, Sanya, Peoples R China

5.Dalian Polytech Univ, Collaborat Innovat Ctr Prov & Ministerial Coconstr, Dalian, Peoples R China

关键词: antioxidant; phycobiliprotein; Porphyra haitanensis; recombinant construction; spectroscopy analysis

期刊名称:JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE ( 影响因子:4.1; 五年影响因子:4.2 )

ISSN: 0022-5142

年卷期: 2023 年 103 卷 11 期

页码:

收录情况: SCI

摘要: BACKGROUND: Oxidation has been reported as the one of the deterioration reactions of proteins in aquatic products. Searching for new bioactive substances from marine algae has been one of the main areas in food science and additives. RESULTS: In this study, a novel protein from the red alga Porphyra haitanensis was determined after ammonium sulfate precipitation and gel filtration chromatography. It closely corresponded to the antioxidant activity and was identified as an uncharacterized protein with a molecular mass of 43 kDa, designated Ph43. Bioinformatic analysis revealed that Ph43 is a novel protein of non-phycobiliprotein family with putative chordin domains and rich in.-helical conformation. Recombinant protein (rPh43) was expressed in Escherichia coli as a Hig-tagged protein using a pET-22b vector system and purified by affinity high-performance liquid chromatography. Spectroscopy analysis revealed that there were no structural differences between rPh43 and natural recovered Ph43. Moreover, rPh43 showed equal/higher antioxidant activity compared with Ph43. rPh43 has the potential for application as a natural antioxidant for food stabilization. CONCLUSION: Our results identified a novel antioxidant protein with molecular mass of 43 kDa derived from Porphyra haitanensis that belongs to the non-phycobiliprotein family. (c) 2023 Society of Chemical Industry.

  • 相关文献
作者其他论文 更多>>