Extraction, characterization and in vitro antioxidant activity of polysaccharides from black soybean

Optimization of extraction and antioxidant activity of polysaccharides from Salvia miltiorrhiza Bunge residue

“…TYAP-3 showed better antioxidant activity than TYAP-1 and TYAP-2, and contains mannose in monosaccharide compositions compared with TYAP-2. BSPS-1 isolated from black soybean with highest concentration of glucose (up to 80%) has lower scavenging activities on superoxide anion and DPPH radical than another two fractions BSPS-2 and BSPS-3 [36]. Nevertheless, PPM and PPE, two polysaccharides isolated and purified from the mycelium and its culture medium of Phellinus pini, contained the same neutral monosaccharide composition of mannose, galactose, and glucose, but PPE with higher mannose content has lower DPPH radical and hydroxyl radical scavenging activity than PPM [38].…”

“…Increasing evidence shows that the monosaccharide composition of polysaccharides and the ratios of monosaccharide could exert apparent effect on its antioxidant capacity [36][37][38]. Meng et al [39] have declared that radical scavenging activities showed significant correlation with mannose content and glucose content.…”

Microwave-assisted Extraction of Polysaccharides from Bamboo (Phyllostachys acuta) Leaves and their Antioxidant Activity

“…The polysaccharide extraction was based on a previously reported method with some modifications (Liu et al 2015). The extraction process was carried out in a 500-mL beaker, followed by heating in a microwave oven (MicroSYNTH, Milestone, USA).…”

Quality control of sweet medicines based on gas chromatography-mass spectrometry

“…Sometimes complete reaction mixture can be injected directly into the gas chromatograph, thus avoiding any cleanup stages. There are many silylation reagents that have been applied for the analysis of carbohydrates in sweet medicines at different temperatures for different reaction times (19)(20)(21)(22). Hexamethyldisilazane (HMDS), N,O-bis(trimethylsilyl)trifluoroacetamide (BSTFA), trimethylchlorosilane (TMCS) and N-methyl-Ntrimethylsilyltrifluoroacetamide (MSTFA) are the most commonly used reagents.…”