Leucaena leucocephala galactomannans from

Interestingly, the antiviral activity of HS mimetics against flaviviruses was also demonstrated in vivo. Two sulfated galactomannans extracted from seeds of Mimosa scabrella and Leucaena leucocephala, named BRS and LLS, respectively, protected mice against intraperitoneal infection with YFV [91]. More recently, the oligosaccharide PI-88 was assayed in vitro and in murine models of flavivirus infection. This low molecular weight compound did not show in vitro effectiveness but ameliorated disease in JEV and DENV-2 infected mice,... 

Hylin and Sawai219 reported that the crystalline depolymerase from Leucaena leucocephala converts the galactomannan from the same source into D-galactose and D-mannose. Hence, it is most likely that the enzyme preparation contained /3-D-mannosidase activity, in addition to a-D-galactosidase and /3-D-mannanase activities. 

C18H32O16 504.441 Isol. from partial acid hydrolysates of Cassia tora, lucerne (Medicago sativa) and from the galactomannan of Leucaena leucocephala from enzymatic hydrolysates of guar (Cyamopsis tetragonoloba), carob (Ceratonia siliqua) galactomannans. 

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