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Chemical modification of an acidic polysaccharide (TAPA1) from Tremella aurantialba and potential biological activities

文献类型： 外文期刊

作者： Du, XiuJu 1 ; Zhang, JingSong 2 ; Lv, ZhiWei 1 ; Ye, LiBin 3 ; Yang, Yan 2 ; Tang, QingJiu 2 ;

作者机构： 1.Liaocheng Univ, Coll Life Sci, Liaocheng 252059, Shandong, Peoples R China

2.Shanghai Acad Agr Sci, Inst Edible Fungi, Shanghai 201106, Peoples R China

3.Zhejiang Gongshang Univ, Coll Food Sci & Biotechnol, Food Safety Key Lab Zhejiang Prov, Hangzhou 310035, Zhejiang, Peoples R China

关键词： Tremella aurantialba polysaccharide;Acetylation;Deacetylation;Immunostimulating activity;Nitric oxide

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

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收录情况： SCI

摘要： TAPA1 was previously isolated from Tremella aurantialba fruiting bodies. In this paper, an acetylated derivative (TAPA1 -ac) and a deactylated derivative (TAPA1 -deac) of TAPA1 were prepared, and their characterization and immunostimulating activities were reported. Acetylation and deacetylation were found to occur actually by FT-IR and NMR spectra, together with calculational results. The degree of substitution (DS) of acetyl groups in TAPAl-ac was 0.23 and the content was 5.82%, which was higher than those of TAPA1 (0.03% and 0.70%, respectively) and TAPAl-deac (all were zero). Compared with TAPA1, TAPAl-ac showed significant immunostimulation effects on mouse spleen lymphocytes (MSLs) proliferation and nitric oxide (NO) production by macrophages RAW264.7, whereas TAPAl-deac showed markedly lower effects. These findings seemed to suggest that immunostimulating activities, including MSLs stimulation activity and NO production potency, might relate to the DS and content of acetyl groups, indicating that acetylation of TAPA1 was an effective way of enhancing immuno-stimulating activities.

  • 相关文献

[1]Purification, chemical modification and immunostimulating activity of polysaccharides from Tremella aurantialba fruit bodies. Du, Xiu-ju,Zhang, Jing-song,Yang, Yan,Tang, Qing-jiu,Jia, Wei,Du, Xiu-ju,Pan, Ying-jie. 2010

[2]Structural elucidation and antioxidant activity of a novel polysaccharide (TAPB1) from Tremella aurantialba. Du, Xiuju,Zhang, Yang,Lv, Zhiwei,Yang, Yan,Zhang, Jingsong,Mu, Hongmei.

[3]Tomato-Pseudomonas syringae interactions under elevated CO2 concentration: the role of stomata. Li, Xin,Sun, Zenghui,Shao, Shujun,Zhang, Shuai,Ahammed, Golam Jalal,Zhang, Guanqun,Jiang, Yuping,Zhou, Jie,Xia, Xiaojian,Zhou, Yanhong,Yu, Jingquan,Shi, Kai,Li, Xin,Jiang, Yuping,Yu, Jingquan,Shi, Kai.

[4]Preliminary Investigation of the Amount, the Molecular Weight and the Activity of Polysaccharides from Chaenomeles Speciosa Fruits in Ethanol Fractional Precipitation. Tian Bing-mei,Xie Xiao-mei,Shen Pan-pan,Yang Mo,Zhang Sheng-long,Xie Xiao-mei,Tang Qing-jiu. 2015

[5]Attenuation of salt-induced changes in photosynthesis by exogenous nitric oxide in tomato (Lycopersicon esculentum Mill. L.) seedlings. Wu, Xue-Xia,Ding, Hai-Dong,Zhu, Wei-Min,Chen, Jian-Lin,Zhu, Wei-Min,Zhang, Hong-Juan. 2010

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