A Study About The Extraction And Activity Of Loquat Polysaccharide In Saccharomyces Loquat Slag

Loquat polysaccharide inhibitory effect is based on traditional hot water extraction to extract loquat polysaccharide from loquat slag, based on this study the loquat polysaccharides bacteriostatic effect. The results show that the loquat polysaccharide on the aspergillus Niger, trichoderma viride, bacillus subtilis, staphylococcus aureus, etc. Has good antibacterial effect, The Staphylococcus aureus minimum inhibitory concentration for20mg/ml., to bacillus subtilis minimum inhibition concentration is0.2mg/ml, and increased with the concentration of polysaccharide bacteriostatic effect is better, among of which, the wooden mould inhibition effects of the most significantTaking Vc as reference, research the loquat polysaccharide the anti-oxidation activity of extract, USES the reduction ferric iron ion method determination of loquat polysaccharide of total reducing capacity, Fenton reaction method to study the hydroxyl radical removal effect, use hydrochloric acid naphthalene ethylenediamine colorimetric method to study the in vitro simulation under the condition of gastric juice to NO2-removal reaction. The results show that the loquat polysaccharide has certain reduction force; To hydroxyl free radical ((?) OH) has good scavenging effect, when loquat polysaccharide dosage increased to1.0mg/mL, clearance rate (58.72%);To NO2-removal ability is weak.