biostudies-literatureSun YShandong Province Key Research and Development Project9415965https://www.ebi.ac.uk/biostudies/studies/S-EPMC6098872biostudies-literatureUnknown2018Avian Leukosis Virus Subgroup J (ALV-J), a retrovirus of avian, has caused enormous economics losses to poultry industry around the world. Polysaccharides from marine algae are featured diversity bioactivities. To find the potential effect to prevent ALV-J spread, in this study, polysaccharides from <i>Ulva pertusa</i> (UPPs) and four low molecular weight (Mw) <i>U. pertusa</i> polysaccharides (LUPPs) were prepared and their functions on ALV-J were investigated. Firstly, LUPPs were obtained by hydrogen peroxide (H₂O₂) oxidative degradation. The effects of degradation conditions on Mw of the UPP were also investigated. Results showed that the H₂O₂ oxidative degradation method could degrade UPP effectively, and the degradation was positively relateBioMed research internationalAntiviral Activity against Avian Leucosis Virus Subgroup J of Degraded Polysaccharides from <i>Ulva pertusa</i>.PMC609887216-6-2-41-nsh2016YYSP010U1606403Song LQin YLi PChen XLiu SWang XSun YYu HfalseAntiviral Activity against Avian Leucosis Virus Subgroup J of Degraded Polysaccharides from <i>Ulva pertusa</i>.Avian Leukosis Virus Subgroup J (ALV-J), a retrovirus of avian, has caused enormous economics losses to poultry industry around the world. Polysaccharides from marine algae are featured diversity bioactivities. To find the potential effect to prevent ALV-J spread, in this study, polysaccharides from <i>Ulva pertusa</i> (UPPs) and four low molecular weight (Mw) <i>U. pertusa</i> polysaccharides (LUPPs) were prepared and their functions on ALV-J were investigated. Firstly, LUPPs were obtained by hydrogen peroxide (H₂O₂) oxidative degradation. The effects of degradation conditions on Mw of the UPP were also investigated. Results showed that the H₂O₂ oxidative degradation method could degrade UPP effectively, and the degradation was positively relate2018-01-01T00:00:00Z20182025-04-19T06:30:39.164Z2019-03-26T23:53:31ZS-EPMC60988723015548510.1155/2018/9415965