Effects of extraction methods on the antioxidant activities of polysaccharides obtained from Flammulina velutipes

Purification, partial characterization and antioxidant activity of polysaccharides from Glycyrrhiza uralensis

“…But the actual mechanism is still difficult to explain. The antioxidant activities of polysaccharides are not a function of a single factor but a combination of several factors [33]. No doubt, to thoroughly elucidate the structure-activity relationship of polysaccharides, all structural characteristics should be comprehensively taken into account.…”

Effect of superfine grinding on the physicochemical properties and antioxidant activity of red grape pomace powders

“…Detailed peak positions and assignments of the five types of GPPs are listed in Table 4. In general, the band at around 3322 cm −1 was corresponding to -OH stretch vibration in phenolic structure of grape pomace powders [33]. The peak at 2924 cm −1 was assigned C-H stretching of GPP structure.…”

Extraction, purification and anti-proliferative activities of polysaccharides from Lentinus edodes

“…The yield of extracted LEPs by different enzymatic treatment times from 50 to 130 min is shown in Fig.1d, when the pH, temperature and liquid/material ratio were set at 9 5.0, 50°C and 20:1 mL/g, respectively. The LEP yield increased from 8.38% to 13.96%…”

“…Recently, various innovative methods have been employed to assist in the extraction of the polysaccharides from the mushroom, such as ultrasound-assisted extraction [5], microwave-assisted extraction [6] and pulsed counter-current probe ultrasonic extraction [7]. Despite the high extraction efficiency, however, ultrasonic or microwave treatment may also cause the degradation of the polysaccharides and changes in the chemical structures [8,9].…”