Characterizations of glucose-rich polysaccharides from Amomum longiligulare T.L. Wu fruits and their effects on immunogenicities of infectious bursal disease virus VP2 protein

Yeast cell-wall polysaccharides improve immunity and attenuate inflammatory response via modulating gut microbiota in LPS-challenged laying hens

“…Thus, it can be reasonably presumed that the two main signals observed at δ 5.24 and δ 5.00 ppm in 1 H NMR spectrum respectively corresponded to the anomeric protons of α-mannose and β-glucose. Moreover, all the absorption peaks obtained from FT-IR spectrum agreed with the typical peaks of polysaccharides described before [27,31]. Also, the three peaks detected by GPC analysis suggested the heterogeneity of the polysaccharides, which implied the presence of more than one type of polysaccharides in the YCWP.…”

“…The Mw and Mw distribution of YCWP were measured by gel permeation chromatography (GPC) according to the method described before [31] on a Shimadzu LC-20AT pump coupled to a RID-20 refractive index detector. The mobile phase was aqueous buffer containing 0.1 M NaNO 3 + 0.05 % (w/w) NaN 3 , with a flow rate of 0.6 mL/min.…”

“…Nuclear magnetic resonance of YCWP was performed as described before [31]. YCWP was dissolved in D 2 O (99.96 %).…”

Progress of Studies on Plant-Derived Polysaccharides Affecting Intestinal Barrier Function in Poultry

“…In the field of polysaccharide research, herbal polysaccharides have been widely studied all over the world, mainly in the field of medicine [ 6 ]. However, for the application study in poultry production, we also found that plant-derived polysaccharides improved growth performance [ 7 ], promoted nutrient digestion and absorption [ 8 ], improved meat quality [ 9 ] and, in addition, had antiviral [ 10 , 11 ], anti-coccidiosis [ 12 ] and anti-tumor activity [ 13 ], enhanced immunity given by vaccines [ 7 ], regulated immune and antioxidant functions [ 14 ], and improved intestinal barrier function [ 15 ].…”

Antifungal activity of purple amomum (Amomum longiligulare T.L. Wu) plant extracts against Fusarium oxysporum Schlecht. and Helminthosporium sativum P. K. & B.

“…However, the studies on the biological activities of the extracts or essential oils of this species are very limited. Several compounds isolated from the pseudo-stem and fruit possessed an immune enhancement ability [19][20][21][22]. Essential oils extracted from the leaf, rhizome, and fruit of purple amomum were shown to exhibit antibacterial properties against Staphylococcus aureus, Bacillus cereus, Escherichia coli, and Pseudomonas aeruginosa with the minimum inhibitory concentration (MIC) values ranging from 200 to 400 μg/mL [23].…”