title: Isolation and identification of lignans from Caulis Bambusae in Taenia with antioxidant properties.
abstract: Caulis Bambusae in Taenia is a medicinal preparation from Bambusa tuldoides Munro consisting of skinless slices of the stem (bamboo shavings) and used as a traditional health food in tea, wine, and soup in Asia. Three novel lignans, (-)-7'-epi-lyoniresinol 4,9'-di-O-β-D-glucopyranoside (7), (-)-lyoniresinol 4,9'-di-O-β-D-glucopyranoside (8), bambulignan A (10), and seven known lignan compounds (1-6 and 9) were isolated from Caulis Bambusae in Taenia. The structures of the lignans were determined by detailed spectroscopic analysis (HRESIMS, HSQC, HMBC, NOE). All the isolated lignans were tested for antioxidant activities by DPPH and FARP assays. The results showed that the compounds (+)-lyoniresinol 9'-O-β-D-glucopyranoside (1) and (-)-7'-epi-lyoniresinol 9'-O-β-D- glucopyranoside (9) have strong free radical scavenging activity and reducing power.
authors.affiliation: State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing 100102, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Sun
authors.forename: Jin
authors.initials: J
authors.lastname: Yu
authors.forename: Pei-Cheng
authors.initials: PC
authors.lastname: Zhang
authors.forename: Feng
authors.initials: F
authors.lastname: Tang
authors.forename: Yong-De
authors.initials: YD
authors.lastname: Yue
authors.forename: Ya-Nan
authors.initials: YN
authors.lastname: Yang
authors.forename: Zi-Ming
authors.initials: ZM
authors.lastname: Feng
authors.forename: Xue-Feng
authors.initials: XF
authors.lastname: Guo
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000737:chemistry*; D031723:Bambusa / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D017705:Lignans / Q000737:chemistry* / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D018547:Plant Stems / Q000737:chemistry*; D013621:Taenia / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D005960:Glucosides; D017705:Lignans; C585729:lyoniresinol 9'-O-glucopyranoside