Hydrophobic Constituents of Polygonatum odoratum Rhizome from the Qinling Mountains and Their Antisepsis Activity

Eight compounds were isolated from the rhizomes of Polygonatum odoratum.Five compounds were isolated from the Polygonatum genus for the first time and their structures were identified as 9,19-cycloart-25-en-3β,24(R/S)-diol(1),α-glycerol palmitate(2),methyl palmitate(3),octacosanoic acid(4),(Z)-6-nonadecenoic acid(5).The antisepsis activity of compound 1 was determined for the first time.Compound 1 had a strong inhibition effect on the growth of Colletotrichum lagenarium with an inhibition rate 100% at a concentration of 10 μg/mL.Its inhibition effect corresponded to erythromycin against Bacterium prodigious growth at a concentration of 100 μg/mL.