Physicochemical Properties and Biological Characteristics of Sargassum fusiforme Polysaccharides Prepared through Fermentation of Lactobacillus

Sargassum fusiforme polysaccharides (SFPs) have multiple activities. The fermentation of S. by Lactobacillus can alter its polysaccharide properties and biological In this study, three different species (Lactobacillus plantarum (LP), acidophilus (LA), rhamnosus (LR)) were selected to ferment fusiforme. SFP (unfermented) FSFP (fermented LP, LA, or LR denoted as LP-SFP, LA-SFP, LR-SFP, respectively) extracted, their physicochemical activities investigated. According the results, caused significant changes in SFP. Specifically, showed a increase uronic acid fucose content decrease molecular weight; LA-SFP LR-SFP had stronger DPPH scavenging abilities; strongest inhibition ROS production cell mortality; LP-SFP significantly increased SOD activity zebrafish; effect on proliferation plantarum; rhamnosus; food-excretion-promoting activity. conclusion, for preparation SFPs change has broad potential improving