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Antioxidant Activity of Coconut (Cocos nucifera L.) Protein Fractions

文献类型: 外文期刊

作者: Li, Yan 1 ; Zheng, Yajun 1 ; Zhang, Yufeng 2 ; Xu, Jianguo 1 ; Gao, Gang 1 ;

作者机构: 1.Shanxi Normal Univ, Inst Food Sci, Linfen 041004, Peoples R China

2.Chinese Acad Trop Agr Sci, Coconut Res Inst, Wenchang 571339, Peoples R China

关键词: coconut cake protein fractions; nutritional value; antioxidant activity; DNA damage

期刊名称:MOLECULES ( 影响因子:4.411; 五年影响因子:4.587 )

ISSN: 1420-3049

年卷期: 2018 年 23 卷 3 期

页码:

收录情况: SCI

摘要: Coconut cake is an abundant and good potential edible protein source. However, until now it has not been extensively used in the food industry. To promote its usage, the characterization, nutrition value and antioxidant activity of coconut cake protein fractions (albumin, globulin, prolamine, glutelin-1 and glutelin-2) were studied. Results revealed that all the albumin, globulin, glutelin-1 and glutelin-2 fractions showed a high nutrition value. The prolamine, glutelin-1 and glutelin-2 all exhibited good radical scavenging activity and reducing power, and the globulin and prolamine showed high ion chelating ability (89.14-80.38%). Moreover, all the fractions except glutelin-2 could effectively protect DNA against oxidative damage. Several peptides containing five to eight amino acids with antioxidant activity were also identified by LC-MS/MS from the globulin and glutelin-2 fractions. The results demonstrated that the coconut cake protein fractions have potential usages in functional foods.

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