Physicochemical Properties and Biological Activities of Silver Carp Scale Peptide and Its Nanofiltration Fractions
文献类型： 外文期刊
作者： Zu, Xiao-yan 1 ; Zhao, Ya-jing 1 ; Fu, Shi-ming 1 ; Liao, Tao 1 ; Li, Hai-lan 1 ; Xiong, Guang-quan 1 ;
作者机构： 1.Hubei Acad Agr Sci, Inst Agr Prod Proc & Nucl Agr Technol, Wuhan, Peoples R China
2.Lanzhou Univ Technol, Coll Petrochem, Lanzhou, Peoples R China
关键词： silver carp scale peptide; physicochemical properties; free radical scavenging; tyrosinase inhibition; amino acid sequence
期刊名称：FRONTIERS IN NUTRITION （ 影响因子：6.59； 五年影响因子：6.873 ）
ISSN： 2296-861X
年卷期： 2022 年 8 卷
页码：
收录情况： SCI
摘要： To explore the physicochemical properties and biological functions of silver carp scale peptide (SCSP), its molecular-weight fractions SCSP-I, II, and III obtained by nanofiltration were assessed for their solubility, emulsibility, free radical scavenging ability, effect on the proliferation of mouse B16 cells. The results showed that the solubility of each fraction of SCSP was higher than 90%, SCSP-II and III were higher than 95%. The antioxidant powers on ? OH, O-2(-) ? and Fe3+ were ranked as SCSP-III > SCSP-II > SCSP-I > SCSP. All fractions of SCSP had no toxic or side effects in mouse B16 melanoma cells experiments in vitro. At a concentration of 0.01 mg/mL, the tyrosinase activity of B16 cells in the SCSP-II fraction was significantly lower than that of the alpha-arbutin (P < 0.05), at 65.37%. The molecular weight distribution of SCSP was 399-1404 Dalton and 13 peptide sequences were detected. Among them, SCSP-II contained many hydrophobic amino acids, and SCSP-III stood out for combining arginine with hydrophobic amino acids. This may be the reason why the low molecular-weight SCSPs show the strong antioxidant activity and strong tyrosinase inhibition. The work provides a data base for the development of SCSP and increases the possibility of its application.
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