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- Title
The Chemical, Structural, and Biological Properties of Crude Polysaccharides from Sweet Tea (Lithocarpus litseifolius (Hance) Chun) Based on Different Extraction Technologies.
- Authors
Guo, Huan; Fu, Meng-Xi; Zhao, Yun-Xuan; Li, Hang; Li, Hua-Bin; Wu, Ding-Tao; Gan, Ren-You
- Abstract
Eight extraction technologies were used to extract sweet tea (Lithocarpus litseifolius (Hance) Chun) crude polysaccharides (STPs), and their chemical, structural, and biological properties were studied and compared. Results revealed that the compositions, structures, and biological properties of STPs varied dependent on different extraction technologies. Protein-bound polysaccharides and some hemicellulose could be extracted from sweet tea with diluted alkali solution. STPs extracted by deep-eutectic solvents and diluted alkali solution exhibited the most favorable biological properties. Moreover, according to the heat map, total phenolic content was most strongly correlated with biological properties, indicating that the presence of phenolic compounds in STPs might be the main contributor to their biological properties. To the best of our knowledge, this study reports the chemical, structural, and biological properties of STPs, and the results contribute to understanding the relationship between the chemical composition and biological properties of STPs.
- Subjects
ICED tea; HEMICELLULOSE; POLYSACCHARIDES; PHENOLS; TEA extracts; HERBAL teas
- Publication
Foods, 2021, Vol 10, Issue 8, p1779
- ISSN
2304-8158
- Publication type
Article
- DOI
10.3390/foods10081779