Preparation of low molecular weight polysaccharides from Tremella fuciformis by ultrasonic-assisted H2O2-Vc method: Structural characteristics, in vivo antioxidant activity and stress resistance

Structural characterization of a novel polysaccharide from Tremella fuciformis and its interaction with gut microbiota

“…For instance, Lee et al reported that T. fuciformis polysaccharides, specifically TFLP-1, had a molecular weight of 75.77 kDa and were primarily composed of Man, Fuc, Xyl, Glc and GlcA, with a molar ratio of 0.433:0.257:0.219:0.050:0.042. 19 Similarly, Wen et al found that polysaccharides derived from T. fuciformis, with a molecular weight of 3.43 kDa, consisted mainly of fucose, xylose, mannose, galactose, and glucose, with molar ratios of 0.85:1.00:1.59:0.01:0.30. 20 Ge et al identified that polysaccharide isolated from T. fuciformis XY exhibited an average molecular weight of 1.14 × 10 3 kDa and consisted primarily of mannose, glucuronic acid, glucose, galactose, xylose and rhamnose, with molar ratios of 3.5:1.2:2:1.6:1.4:3.…”

Exploring the partial degradation of polysaccharides: Structure, mechanism, bioactivities, and perspectives

“…In practice, H 2 O 2 plays a crucial role in the degradation process, and several combined degradation methods have been successfully developed to enhance the degradation efficiency and optimize the structural characterization of polysaccharides. These contents include but are not limited to the following methods: 2+ -ascorbic acid, and so on (Figure 2) (Lee et al, 2023;Ofoedu et al, 2021). Table 5 shows the structure information of polysaccharides when using H 2 O 2 as the main role of the synergistic degradation method.…”

Impacts of ultrasound-assisted Fenton degradation and alkaline de-esterification on structural properties and biological effects of pectic polysaccharides from Tartary buckwheat leaves

“…To bridge the gap between the chemical structure and the biological function of TBP, the structural modification is necessary. Recently, the ultrasound-assisted Fenton degradation method has attracted more and more attentions due to its multiple advantages, which can improve the health-promoting effects of natural polysaccharides by regulating their chemical properties, e.g., molecular mass and branched chain length [8] , [18] , [19] , [20] . The Fenton degradation is a mild chemical degradation method, which is widely used for the degradation of natural polysaccharides owing to its advantages such as controllable conditions and highly efficient.…”