您好,欢迎访问广东省农业科学院 机构知识库!

Purification, Characterization, Prebiotic Preparations and Antioxidant Activity of Oligosaccharides from Mulberries

文献类型: 外文期刊

作者: Li, Erna 1 ; Yang, Shiyuan 1 ; Zou, Yuxiao 1 ; Cheng, Weiwei 3 ; Li, Bing 4 ; Hu, Tenggen 1 ; Li, Qian 1 ; Wang, Weifei 1 ;

作者机构: 1.Guangdong Acad Agr Sci, Guangdong Key Lab Agr Prod Proc, Sericultural & Agrifood Res Inst, Key Lab Funct Foods,Minist Agr & Rural Affairs, Guangzhou 510610, Guangdong, Peoples R China

2.South China Agr Univ, Coll Food Sci, Guangzhou 510642, Guangdong, Peoples R China

3.Henan Univ Sci & Technol, Coll Food & Bioengn, Luoyang 471000, Peoples R China

4.Guangdong Prov Key Lab Green Proc Nat Prod & Prod, Guangzhou 510641, Guangdong, Peoples R China

关键词: oligosaccharide; mulberry; chemical composition; prebiotics; antioxidant

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: 2019 年 24 卷 12 期

页码:

收录情况: SCI

摘要: A water-soluble oligosaccharide termed EMOS-1a was prepared by enzymatic hydrolysis of polysaccharides purified from mulberries by column chromatography. The chemical structure of the purified fraction was investigated by ultraviolet spectroscopy, Fourier-transform infrared spectroscopy, and gas chromatography-mass spectrometry, which indicated that galactose was the main constituent of EMOS-1a. Chemical analyses showed that the uronic acid and sulfate content of EMOS-1a were 5.6% and 8.35%, respectively, while gel permeation chromatography showed that EMOS-1a had an average molecular weight of 987 Da. The antioxidant activities of EMOS-1a were next investigated, and EMOS-1a exhibited concentration-dependent 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity, Trolox equivalent antioxidant capacity, and ferric reducing antioxidant power. The level of proliferation of Lactobacillus rhamnosus reached 1420 +/- 16% when 4% (w/v) EMOS-1a was added, where the number of colonies in MRS (de Man, Rogosa, and Sharpe) medium with no added oligosaccharide was defined as 100% proliferation. These results indicate that the oligosaccharide EMOS-1a could be used as a natural antioxidant in prebiotic preparations.

  • 相关文献
作者其他论文 更多>>