ALOE MANNAN, POLYSACCHARIDE, FROM ALOE ARBORESCENS VAR. NATALENSIS

Abstract
A main polysaccharide (aloe mannan) isolated from the fresh leaf pulp (aquiferous tissue) of Aloe arborescens Mill. var. natalensis Berger in a pure state was proved to be a partially acetylated β–D–mannan. The molecular weight of aloe mannan was calculated to be approximately 15,000 by equilibrium ultracentrifugation. An inhibiting effect of aloe mannan was tested against the implanted sarcoma–180.