文章基本信息

标题：The influence of brown algae alginates on phenolic compounds capability of ultraviolet radiation absorption in vitro
其他标题：The influence of brown algae alginates on phenolic compounds capability of ultraviolet radiation absorption in vitro
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作者：Salgado, Leonardo Tavares ; Tomazetto, Rodrigo ; Cinelli, Leonardo Paes 等
期刊名称：Brazilian Journal of Oceanography
印刷版ISSN：1679-8759
电子版ISSN：1982-436X
出版年度：2007
卷号：55
期号：2
页码：145-154
DOI：10.1590/S1679-87592007000200007
出版社：Instituto Oceanográfico da Universidade de São Paulo
摘要：Brown algae phenolic compounds (PC) are secondary metabolites that participate in many biological processes, such as ultraviolet radiation (UV) protection, polyspermy blocking and trace metals bounding. Recently, PC has also been studied due to possible interactions with cell wall polysaccharides. However, there are few evidences of these interactions and their influence in physiological processes. The interactions between PC from the brown alga Padina gymnospora and alginates and the influence of these interactions on the UV absorption properties of PC were investigated in this work. Chromatography and spectrophotometry techniques were used to isolate, characterize and determine UV absorption capacity of studied compounds. Even after the P. gymnospora polysaccharide extraction and isolating methods, the PC was maintained linked to the alginate. The interaction of alginates with PC did not cause modifications on absorbance pattern of electromagnetic spectrum (UV-VIS-IR). The UV absorbance capability of PC linked to alginate was maintained for a longer period of time if compared with the purified PC. The obtained results reveal the strong linkage between PC and alginates and that these linkages preserve the UV absorption capability of PC along time.
关键词：Alginato;Compostos fenólicos;Radiação ultravioleta;Polissacarídeos
其他关键词：Alginate;Phenolic compounds;Ultraviolet radiation;Polysaccharides