Work

Efficient Decolorization and Preparation of Sparassis crispa Polysaccharides Using Amino-Modified Silica Gel and Evaluation of Their Biological Activites

Year: 2025

Type: article

Abstract: This study synthesized an efficient amino-modified silica gel decolorizer by aminating silica hydroxyls, characterized via SEM, FT-IR, N2 adsorption and XPS. It investigated its decolorization of Sparassis crispa crude polysaccharides using decolorization rate and polysaccharide retention as indices, revealing pigment adsorption mechanisms. Polysaccharide activity preservation by physical adsorption was evaluated via antioxidant (DPPH, ABTS, •OH scavenging) and zebrafish caudal fin repair assays. The results showed 79.85% decolorization and 86.54% polysaccharide retention within 5 min, with over 75% decolorization after five cycles of reuse. Results suggest that pigment adsorption may involve interactions between amino groups and chromophoric compounds. The decolorized polysaccharides showed better antioxidant and zebrafish caudal fin repair activities than those treated with traditional H2O2. These findings support the development of efficient, low-damage decolorization strategies for edible and medicinal polysaccharides.

Source: Foods

DOI: 10.3390/foods14244214

Authors: Jiebo Chen, Chunyan Zhang, Cheng Peng, Lu Wang, Shoujing Zheng

Institutions: Fujian Agriculture and Forestry University, Jinshan College of Fujian Agriculture and Forestry University

Language: English

Topic: Fungal Biology and Applications

Subfield: Pharmacology

Field: Medicine

Domain: Health Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $3,499