Mmy table citatiInvestigation of the factors influencing the molecular weight of porphyran and its associated antifungal activity

Publication date: Available online 4 April 2015 Source:Bioactive Carbohydrates and Dietary Fibre Author(s): Saurabh Bhatia , Kiran Sharma , Kalpana Nagpal , Tanmoy Bera In the present study various extraction methodologies have been adopted to derive sulfated polysaccharides (SPs) called as porphyran (POR) from low tide (LT) and high tide (HT) samples of Porphyra vietnamensis. Initially various taxonomical differences among LT and HT samples of P. vietnamensis were evaluated. Later on various physico-chemical and antifungal properties were determined. Our results suggested that P. vietnamensis collected during LT yields high percentage of SPs with relatively low molecular weight (MW) and high sulfate content than HT sample. Among various extraction methodologies alkali modified POR yield low MW polysaccharide but surprisingly with high sulfate content which have shown improved physico-chemical and anti fungal properties than chitosan (CS) without any toxicological affects. However extensive research is further required to explore the molecular pathways inhibited or stimulated in this process. Graphical abstract
Source: Bioactive Carbohydrates and Dietary Fibre - Category: Food Science Source Type: research