林业科学2016，Vol.52Issue(12)：99-105,7.DOI:10.11707/j.1001-7488.20161212
梁山慈竹茎秆的化学成分
Chemical Constituents from the Culm of Dendrocalamus farinosus
摘要
Abstract
[Objective]The main purpose of this study was to investigate the chemical constituents from the culm of Dendrocalamus farinosus,and to provide a theoretical basis for development and utilization of sympodial bamboo resources.[Method]The analysis of general chemical composition were followed by national standard method. The contents of eighteen kinds of inorganic elements was detected by inductively coupled plasma-mass spectrometry ( ICP/MS ) ,combining with microwave sample digestion. The 95% ethanol extract from the D. farinosus culm was then eluted successively with distilled water,30% ethanol,60% ethanol,and 80% ethanol respectively. The compounds were isolated by column chromatography on silica gel,Sephadex LH-20 and high voltage HPLC separate system. The structures of the compounds were elucidated by spectroscopic and the data reported in literature. [Result]The results showed that the chemical components of D. farinosus were determined as ash content 1. 24%,1%NaOH extractive 30. 71%,hot water extractive 11. 58%,cold water extractive 9. 16%,benzene-alcohol extractive 3. 27%,pentosan 19. 44%,klason lignin 22. 18%,holocellulose 72. 70%. The contents of 18 kinds of inorganic elements were Ca(587. 13 mg·kg -1 ),Mg(448. 75 mg·kg -1 ),Al(76. 51 mg·kg -1 ),Fe(66. 38 mg· kg -1),Na(51. 4 mg·kg -1),Zn(16. 47 mg·kg -1),Mn(15. 52 mg·kg -1),Cr(5. 26 mg·kg -1),Ni(3. 54 mg·kg -1),Mo(3. 03 mg·kg -1),Cu(2. 48 mg·kg -1),Pb(2. 46 mg·kg -1),Cd(0. 39 mg·kg -1),Se(0. 35 mg·kg -1),Ag(0. 26 mg·kg -1),As(0. 23 mg·kg -1),Co(0. 09 mg·kg -1),Hg(0. 07 mg·kg -1),respectively. Ten compounds were isolated and identified as isoorientin, 4-hydroxybenzaldehyde,tricin,tricin-7-O-glucopyranoside,ferulic acid,p-coumaric acid,p-hydroxybenzoic acid,isovitexin, 2,6-Dimethoxy-1,4-benzoqunone,β-sitosterol. For the first time,these compounds mentioned above were isolated from D. farinosus,compounds 5 and 9 were separated from Dendrocalamus plant.[Conclusion]The fiber property of D. farinosus culm ranged between softwood and hardwood,and it’s an ideal material to make paper. Ca,Mg,Al,Fe,Na,Zn,Mn,Cr were relative abundant in the bamboo culm,and the amount of other elements ranged from 0. 07 mg·kg -1 to 0. 35 mg·kg -1 . In general,the amount and type of secondary metabolic components in D. farinosus culm were less than those in leaves. Furthermore,the flavonoids and phenolic acid compounds were found,which might have allelopathic activity. Therefore, the targeted research was suggested to be carried out.关键词
梁山慈竹/茎秆/化学成分/结构鉴定Key words
Dendrocalamus farinosus/bamboo culm/chemical constituents/structure identification分类
化学化工引用本文复制引用
姚曦,汤锋,岳永德..梁山慈竹茎秆的化学成分[J].林业科学,2016,52(12):99-105,7.基金项目
国际竹藤中心基本科研业务费重点项目(1632014008) （1632014008）
“十二五”国家科技支撑计划项目(2012BAD23B03)。 （2012BAD23B03）
