Preparation, structure, and properties of tea polysaccharide

Abstract

Tea polysaccharide is a kind of acid glycoprotein complex extracted from tea. Tea polysaccharide has a variety of biological activities, especially the hypoglycemic effect is outstanding. It is good for human health. Tea polysaccharides have been extensively studied over the past few decades. The advantages and disadvantages of water extraction, enzyme-assisted extraction, ultrasonic-assisted extraction, microwave-assisted extraction, and supercritical fluid extraction were described. At the same time, the structure and biological activity of tea polysaccharide were also summarized. The development of tea polysaccharide was prospected.

Effect of brewing conditions on the chemical and sensory profiles of milk tea

“…In order to ensure the homogeneity of the test samples, the teas were ground in a grinding machine ( Fan, Zhou, & Huang, 2022 ) sieved with a 20-mesh sieve. According to the conditions shown in Table 1 , the tea powder was weighed into a beaker.…”

Extraction, isolation, purification, derivatization, bioactivity, structure–activity relationship, and application of polysaccharides from White jellyfungus

“…Both proteins and polysaccharides are polar biological macromolecules, and proteins are hydrophilic substances, so removing the interference of free proteins is a key step in the purification of polysaccharides. Commonly used methods for deproteinizing crude polysaccharides include the Sevag, protease, trichloroacetic acid, and calcium chloride method, and so on (Fan et al, 2022;C. Huang et al, 2021;.…”

“…Both proteins and polysaccharides are polar biological macromolecules, and proteins are hydrophilic substances, so removing the interference of free proteins is a key step in the purification of polysaccharides. Commonly used methods for deproteinizing crude polysaccharides include the Sevag, protease, trichloroacetic acid, and calcium chloride method, and so on (Fan et al, 2022; C. Huang et al, 2021; W. Yang et al, 2022). The protein removal in WJP is generally removed by the Sevag method and then treated with papain (Xiao et al, 2021), which can increase the yield of WJP, avoid the destruction of its glycosidic bonds and reduce the use of organic solvents (L. Wang et al, 2021).…”

Advances in the Utilization of Tea Polysaccharides: Preparation, Physicochemical Properties, and Health Benefits

“…In recent years, TPS has received extensive attention due to its broad therapeutic properties and relatively low toxicity to normal cells, and it is expected to become an alternative or adjunct to traditional anticancer drugs [ 102 ]. Liu et al, isolated and purified a water-soluble homogeneous polysaccharide (DTP-1) from dark brick tea, and then they evaluated the cytotoxic activity of DTP-1 on cancer cells and normal cells in vitro [ 103 ].…”