期刊
CARBOHYDRATE POLYMERS
卷 134, 期 -, 页码 6-11出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2015.07.008
关键词
C. albicans; Mannan; Dextran; Antioxidant; Thrombolysis; Atomic force microscopy
资金
- Grant Agency of Slovak Academy of Sciences VEGA [0026/13]
- Applied research in the field of industrial biocatalysis, ITMS [26240220079]
- Research & Development Operational Programme - ERDF [26240220079]
Mannan from Candida albicans, dextran from Leuconostoc spp. and their carboxymethyl (CM)-derivatives were tested on antioxidant and thrombolytic activities. As antioxidant tests, protection of liposomes against OH radicals and reducing power assay were used. Dextran and mannan protected liposomes in dose-dependent manner. Carboxymethylation significantly increased antioxidant properties of both CM-derivatives up to concentration of 10 mg/mL, higher concentrations did not change the protection of liposomes. The reducing power of CM-mannan (DS 0.92) was significantly lower (P < 0.05) than underivatized mannan. No reductive activity was found for dextran and CM-dextran. All CM-derivatives demonstrated statistically significant increasing activity compared with underivatized polysaccharides. The highest thrombolytic activity was found using CM-mannan (DS 0.92). The clot lysis here amounted to 68.78 +/- 6.52% compared with 0.9% NaCl control (18.3 +/- 6.3%). Three-dimensional surface profiles of mannan, dextran, and their CM-derivatives were compared by atomic force microscopy. (C) 2015 Elsevier Ltd. All rights reserved.
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