Infrared spectroscopic analysis of differentextracts from Selaginellae doederleinii

摘要

A systemic analysis was performed for the infrared spectroscopy and secondderivative infrared spectroscopy of each solvent extracts from Selaginellaedoederleinii. This was accomplished using the fingerprint characteristics ofinfrared spectroscopy. For Selaginellae doederleinii, the petroleum ether extractmainly contained low polar compounds such as long-chain fatty acids (ester),unsaturated ketones, and hemiterpene. The ethyl acetate extract mainly containedflavonoid compounds. The anhydrous ethanol extract mainly contained flavonoidcompounds. The 50% ethanol extract mainly contained flavonoid compounds,and the deionized water extract mainly contained high polar ingredients such aspolysaccharides and tannins. Moreover, compared with infrared spectroscopy ofamentoflavone (index ingredient of Selaginellae doederleinii), the ethyl acetateextract had a higher amount of flavone. Therefore, the infrared spectroscopycould be used to initially identify the essential components in herb extract. Thiscould help to provide a reference for establishing extraction protocols andanalytical methods for the effective components.