裸蒴化学成分研究

目的研究裸蒴Gymnotheca chinensis的化学成分。方法采用多种柱色谱及制备液相色谱分离纯化,经理化性质和波谱数据鉴定结构。结果从裸蒴的甲醇提取物中分离得到16个化合物,分别鉴定为2-(1-羟基-4-羰基环己-2,5-二烯基)乙腈(1)、N-苯甲酰-2-羟基酪胺(2)、N-苯甲酰酪胺(3)、N-苯甲酰基-2-苯基乙胺(4)、7,4′-二甲氧基山柰酚(5)、蜜桔黄素(6)、桔皮晶(7)、姜黄酮A(8)、6-羟基大柱香波龙-4,7-二烯-3,9-二酮(9)、5,6-环氧-3-羟基大柱香波龙-7-烯-9-酮(10)、9-羟基大柱香波龙-4-烯-3-酮(11)、9-羟基大柱香波龙-4,7-二烯-3-酮(12)、黑燕麦内酯(13)、6β-羟基-豆甾-4-烯-3-酮(14)、6β-羟基-豆甾-4,22-二烯-3-酮(15)、3β-羟基-豆甾-5-烯-7-酮(16)。结论化合物1和2为新的天然产物,其余化合物为首次从该特有属植物中分离得到。     

地骨皮正丁醇部位化学成分研究

目的研究地骨皮Lycii Cortex(枸杞Lycium chinense根皮)的化学成分。方法地骨皮干燥药材用70%乙醇回流提取,所得浸膏依次用石油醚、醋酸乙酯和正丁醇萃取。采用硅胶、SephadexLH-20、ODS柱色谱和半制备高效液相色谱等方法对地骨皮正丁醇萃取部位进行分离纯化,运用核磁、质谱等现代波谱技术对分离得到的化合物进行结构鉴定。结果从地骨皮的正丁醇萃取部位中分离得到10个化合物,分别鉴定为(1′S,2R,5S,10R)-2-(1′,2′-二羟基-1′-甲基)-6,10-二甲基螺[4,5]癸-6-烯-8-酮-2′-O-β-D-葡萄糖苷(1)、(1′R,2R,5S,10R)-2-(1′,2′-二羟基-1′-甲基-)-6,10-二甲基螺[4,5]癸-6-烯-8-酮-2′-O-β-D-葡萄糖苷(2)、(1R,6R,9S)-6,9,11-三羟基大柱香波龙-4,7-二烯-3-酮-11-O-β-D-葡萄糖苷(3)、香草酸-4-O-β-D-葡萄糖苷(4)、3,4-二羟基苯丙酸(5)、3,4-二羟基苯丙酸甲酯(6)、丁香酸葡萄糖苷(7)、二氢红花菜豆酸-3′-O-β-D-吡喃葡萄糖苷(8)、异东莨菪苷(9)和fabiatrin(10)。结论化合物3为首次从茄科植物中分离得到,化合物1、2、4为首次从枸杞属植物中分离得到,且化合物2的核磁数据首次被报道。     

白斑枪刀药的化学成分研究

目的研究白斑枪刀药Hypoestes phyllostachya地上部分的化学成分。方法采用硅胶柱色谱、MCI、HPLC等色谱技术进行分离纯化,根据波谱技术进行化合物结构鉴定。结果从白斑枪刀药地上部分95%乙醇提取物中分离得到18个化合物,分别鉴定为(3R,6R,7E)-3-羟基-大柱烷-4,7-二烯-9-酮(1)、(3S)-3-羟基-β-紫罗兰酮(2)、(3S,5R,6S,7E)-3-羟基-5,6-环氧-大柱烷-7-烯-9-酮(3)、蚱蜢酮(4)、vomifoliol(5)、(+)-dehydrovomifoliol(6)、黑麦草内酯(7)、2,6-二甲基-2E,7-辛二烯-1,6-二醇(8)、bifurcanol(9)、(12S)-hydroxygeranylgeraniol(10)、nectandrin B(11)、N-反式阿魏酰酪氨(12)、丁香乙酮(13)、丹皮酚(14)、香草醛(15)、脱氢姜酮(16)、邻羟基苄醇(17)、(2E)-4-羟基-2-己烯酸(18)。结论所有化合物均为首次从该植物中分离得到。     

野葛藤的化学成分研究

目的研究野葛Pueraria lobata藤茎中的化学成分。方法采用正相硅胶柱色谱、Sephadex LH-20凝胶柱色谱、制备薄层、重结晶等方法进行分离纯化,通过理化性质及波谱数据鉴定化合物结构。结果分离了11个化合物,分别鉴定为去氢催吐萝芙醇(dehydrovomifoliol,1)、布卢竹柏醇(blumenol,2)、3β-羟基-5α,6α-环氧-7-大柱香波龙烯-9-酮(3β-hydroxy-5α,6α-epoxy-7-megastigmen-9-one,3)、甘草素(4)、鹰嘴豆醇(garbanzol,5)、阿魏酸(6)、2,4-二羟基苯甲醛(7)、4-羟基-2-甲氧基苯甲醛(8)、(?)-块茎葛素[(?)-tuberosin,9]、香豆雌酚(coumestrol,10)、β-谷甾醇(11)。结论化合物1～3为倍半萜类化合物,为首次从葛属植物中分离得到;化合物4～8为首次从葛属植物中发现。     

八角枫的化学成分研究

目的：研究八角枫科八角枫属植物八角枫Alangium chinense (Lour.) Harms的化学成分。方法：采用各种柱色谱及半制备液相色谱分离纯化,经波谱数据鉴定化合物结构。结果：从八角枫根的正丁醇萃取物中分离得到21个化合物,其结构分别鉴定为(+)-异落叶松树脂醇-3α-O-β-D-吡喃葡萄糖苷（1）、(+)-南烛树脂醇-3α-O-β-D-吡喃葡萄糖苷（2）、(7S,8R)-川素馨木脂苷（3）、枇杷苷（4）、(6R,9R)-大柱香波龙烷-4-烯-9-醇-3-酮-O-β-D-(6′-O-β-D-呋喃芹糖基)吡喃葡萄糖苷（5）、马钱酸（6）、(1S,4S)-7-羟基去氢白菖烯（7）、(1R,4S)-7-羟基去氢白菖烯（8）、八角枫碱（9）、尿嘧啶（10）、尿苷（11）、胸苷（12）、5-羟基-2-羟甲基吡啶（13）、2,6-去氧果糖嗪（14）、3,4′-O-β-D-二甲基逆没食子酸（15）、3′-O-β-D-甲基-3,4-亚甲二氧基鞣花酸-4′-O-β-D-吡喃葡萄糖苷（16）、水杨醇（17）、香草醛（18）、没食子酸（19）、没食子酸甲酯（20）、没食子酸乙酯（21）。结论：化...     

木香中的4个紫罗兰酮类化合物

目的:研究木香的化学成分。方法:采用硅胶柱色谱、高效液相色谱等方法分离纯化木香的化学成分,依据波谱学数据鉴定其结构。结果:从木香中分离得到14个化合物,分别为氧化石竹烯(1),3β-乙酰氧基-9(11)-巴卡林烯(2),3-绵马烷酮(3),大黄酚(4),二氢-α-紫罗兰酮(5),(E)-6,10-dimethyl-9-methylidene-undec-5-en-2-one(6),(E)-geranylactone(7),去氢木香内酯(8),木香烃内酯(9),α-木香醇(10),(-)-12-羟基-1,3-11(13)-榄香三烯(11),(3R,6S)-3-羟基-α-紫罗兰酮(12),4-氧代-α-紫罗兰酮(13),(3R,6R)-3-羟基-α-紫罗兰酮(14)。结论:其中化合物3,4,12,13,14均为首次从木香中分离得到。     

雷公藤叶的化学成分研究

目的:研究雷公藤叶的化学成分。方法:运用硅藻土、硅胶、聚酰胺柱色谱及中压、高效液相柱色谱等方法对雷公藤叶中的化学成分进行分离纯化,结合理化性质和MS、NMR等波谱学数据对化学结构进行解析。结果:从雷公藤叶的80%乙醇提取物的丙酮部位中共分离并鉴定了17个化合物,分别为:5,6-二羟基-紫罗兰酮(1)、3β-hydroxy-7,8-dihydro-β-ionone(2)、(E)-4-hydroxy-3,3,5-trimethyl-4-(3-oxobut-l-en-l-yl)-cyclohexan-l-one (3)、3-hydroxy-7,8-didehydro-β-ionone(4)、(-)-3-hydroxy-β-ionone(5)、3,6-顺-3-羟基-α-紫罗兰酮(6)、2(4H)-benzofuranone,5,6,7,7α-tetrahydro-7-hydroxy-4,4,7α-trimethyl-(7)、(E)-megastigm-7-ene-3,9-dione (8)、4-megastigmen-3,9-dione(9)、3-hydroxymegastigma-5,8-dien-7-one(10)、hydroxydihydrobovolide(5-hydroxyl-3,4-dimethy-5-pentyl-2(5H)-furanone (11)、(+)-boscialin(12)、procyanidin B3(13)、槲皮素-3-O-β-D-吡喃木糖苷(14)、樱桃苷(15)、槲皮苷(16)、槲皮素-3-O-β-D-6"-乙酰基吡喃阿洛糖苷(17)。结论:化合物1～17均为首次从雷公藤中分离得到。     

忧遁草化学成分

目的:研究忧遁草Clinacanthus nutans枝叶乙酸乙酯部位的化学成分。方法:采用反复硅胶柱色谱法,Sephadex LH-20柱色谱法,MCI柱色谱法等分离纯化手段相结合对忧遁草进行分离纯化,并通过波谱数据(1H-NMR,13C-NMR)鉴定其化学结构。结果:从忧遁草枝叶中分离鉴定了10个化合物,分别鉴定为吲唑(1),loliolide(2),(3S,5R,6S,7E)-5,6-环氧-3-羟基-7-大柱香波龙烯-9-酮(3),植醇(4),(-)-α-tocospirone(5),α-nigerose(6),clerspide A(7),(2R)-1-O-glyceryl-β-Dgalactoside(8),豆甾醇(9),胡萝卜苷(10)。结论:化合物2~8为首次从忧遁草枝叶中分离得到,为阐明忧遁草的药效物质基础提供了有力证据,为海南产的忧遁草资源的开发利用提供了科学依据。     

软枣猕猴桃果实中1个新的降倍半萜苷类化合物

目的研究软枣猕猴桃Actinidiaarguta果实的化学成分。方法采用硅胶柱色谱、ODS柱色谱、SephadexLH-20柱色谱、制备薄层色谱和半制备型高效液相色谱等方法分离,根据波谱数据鉴定化合物结构。结果从软枣猕猴桃75%工业乙醇冷浸提取物的正丁醇萃取物中共分得15个化合物,分别鉴定为(2R,6R,9R)-三羟基-大柱香波龙烷-4,7E-二烯-3-酮-9-O-β-D-吡喃葡萄糖苷(1)、(6S,9R)-玫瑰花苷(2)、槲皮素-3-O-β-D-半乳糖苷(3)、紫云英苷(4)、香草酸-4-O-β-D-吡喃葡萄糖苷(5)、1-O-feruloyl-β-D-glucopyranoside(6)、阿魏酸-4-O-β-D-吡喃葡萄糖苷(7)、红景天苷(8)、3-hydroxy-1-(4-O-β-D-glucopyranosyl-3-methoxyphenyl) propan-1-one(9)、5-O-咖啡酰基奎宁酸甲酯(10)、5-O-咖啡酰基奎宁酸丁酯(11)、5-O-阿魏酰基奎宁酸甲酯(12)、5-O-香豆酰基奎宁酸甲酯(13)、咖啡酸(14)和原儿茶酸(15)。结论化合物1为1个未见文献报道的甲基环己烯型降倍半萜苷类化合物,命名为软枣猕猴桃苷A;化合物2、5和7～13为首次从猕猴桃属植物中分离得到;化合物6为首次从软枣猕猴桃中分离得到。     

剑叶金鸡菊化学成分及生物活性研究

目的 首次对剑叶金鸡菊Coreopsis lanceolata全草的化学成分和抗菌活性进行研究.方法 采用各种柱色谱进行分离纯化,通过波谱数据分析(MS、NMR等)进行结构鉴定.对化合物1～8的抗菌活性进行了初步筛选.结果 从剑叶金鸡菊全草氯仿部位中共分离得到了15个化合物,其中包含8个倍半萜类化合物,分别鉴定为1β,5α-diangeloyloxy-eudesm-(15)-ene (1)、1 β,6α-dihydroxyeudesm-4(15)-ene (2)、10αt-hydroxyoplopan-4-one (3)、(7R*)-opposit-4(15)-ene-1β,7-diol (4)、(7R*)-opposit-4(15)-ene-1 β,8-diol (5)、(7R*)-opposit-4(15)-ene-1β,11-diol (6)、(7R*)-opposit-4(15)-ene-1β,7α-diol (7)、4(15)-eudesmene-1β,7α-diol (8)、对羟基桂皮酸(9)、3-甲氧基-4-羟基苯甲酸(10)、对羟基苯甲酸甲酯(11)、3,4-二羟基苯甲醛(12)、β-谷甾醇(13)、木栓酮(14)、木栓醇(15).结论 所有化合物均为首次从该植物中分离得到,化合物3、4对金黄色葡萄球菌有较强的抑制作用.     

三七总皂苷多成分经鼓室给药的体内分布及药代动力学研究

目的:考察三七总皂苷(PNS)经鼓室给药后人参皂苷Rb1(Rb1)、人参皂苷Rg1(Rg1)和三七皂苷R1(R1)在豚鼠的体内行为,探索中药多种成分经内耳途径转运至脑的可行性.方法:PNS分别经鼓室和静脉给药,于不同时间点采集内耳外淋巴液、脑脊液(CSF)、脑组织和血浆,采用HPLC测定各组织中Rb1,Rg1和R1的浓度,计算上述成分在各组织的药代动力学参数;根据各成分的药时曲线下面积(AUC)所占比值自定义为权重系数,并进一步估算PNS整合后的药代动力学参数.结果:PNS经鼓室给药,其Rb1,Rg1和R1均能穿过圆窗膜进入内耳外淋巴并转运进入脑部,但3种成分在体内各组织的药代动力学参数差异较大.PNS整合药代动力学参数显示,PNS采用鼓室给药能增加进入脑部的药量,提高局部生物利用度,在CSF和脑组织的Cmax分别比静脉给药高1.1,0.4倍,AUC分别增加0.4,0.2倍;并且,PNS在血浆的分布减少,Cmax和AUC分别比静脉给药降低45.9％,33.1％.结论:经耳人脑有望成为中药脑内输送的一种新方法.     

Studies on the analgesic,anti-inflammatory and antipyretic effects of Parquetina nigrescens leaf extract

Ethnopharmacological relevance

Parquetina nigrescens is a shrub that is commonly used in different parts of West Africa for the treatment of several ailments which includes pain, fever and inflammatory conditions.

Aim of the study

The present study was designed to investigate the analgesic, anti-inflammatory and antipyretic effects of the aqueous extract of Parquetina nigrescens leaves in rats.

Materials and methods

Five groups were used for each study, groups 1 and 5 served as control (saline) and reference (indomethacine) respectively, while groups 2–4 received the extract (50–200 mg/kg) orally. Formalin paw licking and hot plate latency tests were used for analgesic studies. Carrageenan oedema, cotton pellet granuloma and formaldehyde arthritis models were used to quantify the anti-inflammatory activities while the brewer’s yeast was used for inducing pyrexia.

Results

The results of the analgesic study show that the extract produced significant (p < 0.05) analgesia in the hot plate and in the formalin tests. In the anti-inflammatory study, Parquetina nigrescens produced significant (p < 0.05) inhibition of the various types of inflammation. The extract also inhibited the pyrexia induced by brewer’s yeast.

Conclusion

The result justifies the traditional uses of Parquetina nigrescens for the treatment of fever, inflammatory and painful conditions.     

Gastroprotective and safety effects of WIN-34B, a novel treatment for osteoarthritis, compared to NSAIDs

Ethnopharmacological relevance

The dried flowers of Lonicera japonica, also known as Japanese honeysuckle, and the dried root of Anemarrhena asphodeloides, the component herbs of WIN-34B, are traditionally used in Eastern medicine to treat various inflammatory conditions including arthritis.

Objective

To study the acute and chronic toxicities of WIN-34B and to compare its effects on gastric mucosa with those of diclofenac, a widely used NSAID, and celecoxib, a selective COX-2 inhibitor.

Materials and methods

To investigate acute toxicity, we orally administered a single dose of 5000 mg/kg WIN-34B to rats. To investigate chronic toxicity, we orally administered 500, 1000 or 2000 mg/kg WIN-34B to rats daily for 13 weeks. To assess its effects on gastric mucosa, rats received either a single dose or repeated doses of WIN-34B (400, 1000, or 2000 mg/kg), diclofenac (10, 40, or 80 mg/kg), celecoxib (100 or 1000 mg/kg), or vehicle, after which samples of gastric mucosa were assessed grossly and histologically. We also measured tissue activity of myeloperoxidase and synthesis of eicosanoids, including prostaglandin E₂ (PGE₂) and leukotriene B₄ (LTB₄). To further assess its effects, we administered WIN-34B to rats either intraperitoneally or orally, measured gastric injury scores using a rat model of diclofenac-induced gastric injury, and measured eicosanoid synthesis.

Results

WIN-34B showed no signs of acute or chronic toxicity in terms of general behavior, gross appearance of the internal organs, blood chemistry, or mortality. WIN-34B did not cause significant gastric mucosal damage after single or repeated doses. In contrast, diclofenac and celecoxib both caused gastric damage. In terms of eicosanoid synthesis, WIN-34B significantly suppressed LTB₄ synthesis while both diclofenac and celecoxib increased LTB₄ synthesis. WIN-34B slightly reduced PGE₂ production, while both diclofenac and celecoxib significantly reduced PGE₂ production. In a rat model of diclofenac-induced gastric injury, WIN-34B significantly suppressed LTB₄ synthesis and restored PGE₂ release.

Conclusions

These results demonstrate that WIN-34B did not cause acute or chronic toxicity in male or female rats. In addition, WIN-34B did not cause significant gastric mucosal damage, instead appearing to protect the mucosa from diclofenac-induced gastric damage through the regulation of PGE₂ and LTB₄.     

山芝麻对CCl4诱导小鼠肝损伤的 脂质过氧化反应的影响

目的 :研究山芝麻水提物(Helicteres angustifolia)对四氯化碳(CCl₄)诱导肝损伤小鼠脂质过氧反应的影响。 方法 :以CCl₄造成小鼠急性肝损伤模型,山芝麻ig,测定血清丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)活性、丙二醛(MDA)含量、超氧化物歧化酶(SOD)活性、总抗氧化能力(T-AOC),以及检测肝组织MDA,SOD,NO和T-AOC含量。 结果 :山芝麻能保护CCl₄所致小鼠肝损伤,使血清ALT,AST活力和MDA含量下降,SOD活性和T-AOC水平提高。山芝麻还能提高肝组织SOD,T-AOC含量,降低MDA,NO水平。 结论 :山芝麻具有抗脂质过氧化作用。     

不同钾肥品种及配施对三七产量和品质的影响

该文采用盆栽土培试验,研究了施用氯化钾和硫酸钾及配施对三七生长、产量和品质的影响。结果表明,同对照相比,氯化钾和硫酸钾及两者配施均能显著提高三七生物量和产量,且氯化钾对三七增产效果略优于硫酸钾。2种钾肥及配施均也显著促进三七植株对K的吸收和三七地下部对N,P的吸收,并显著提高三七皂苷含量与累积量;其中,三七皂苷R₁,人参皂苷Rg₁,Rb₁,Rd和总皂苷含量分别增加了54.54%~72.72%,11.15%~37.55%,2.26%~29.68%,10.34%~51.72%,13.85%~25.52%,且氯化钾和硫酸钾1：1配施时,三七各种皂苷成分含量最高。2种钾肥相比,氯化钾对皂苷成分含量的提升作用优于硫酸钾。三七对氯不敏感,氯化钾和硫酸钾对三七的生长发育及品质的形成作用等效。三七生产中推荐选用氯化钾做钾源,以提高三七产量和品质,降低钾肥投入成本。     

Antioxidant activity of Caesalpinia digyna root

The antioxidant properties of three successive extracts of Caesalpinia digyna Rottler root and the isolated compound, bergenin, were tested using standard in vitro and in vivo models. The amount of the total phenolic compounds present was also determined. The successive methanol extract of Caesalpinia digyna root (CDM) exhibited strong scavenging effect on 2,2-diphenyl-2-picryl hydrazyl (DPPH) free radical, 2,2′-azino-bis(3-ethylbenzo-thiazoline-6-sulphonic acid) diammonium salt (ABTS) radical cation, hydrogen peroxide, nitric oxide, hydroxyl radical and inhibition of lipid peroxidation. The free radical scavenging effect of CDM was comparable with that of reference antioxidants. The CDM having the highest content of phenolic compounds and strong free radical scavenging effect when administered orally to male albino rats at 100, 200 and 400 mg/kg body weight for 7 days, prior to carbontetrachloride (CCl₄) treatment, caused a significant increase in the levels of catalase (CAT) and superoxide dismutase (SOD) and significant decrease in the levels of lipidperoxidation (LPO) in serum, liver and kidney in a dose dependent manner, when compared to CCl₄ treated control. These results clearly indicate the strong antioxidant property of Caesalpinia digyna root. The study provides a proof for the ethnomedical claims and reported biological activities. The plant has, therefore, very good therapeutic potential.     

罗汉果中1个新的天然皂苷

目的:研究罗汉果中的化学成分.方法:用各种色谱法分离和纯化化合物,通过多种波谱数据鉴定其结构.结果:从罗汉果乙醇提取物中分离鉴定了6个葫芦烷型三萜皂苷,分别为罗汉果皂苷Ⅲ A1(mogroside Ⅲ A1)、赛门苷Ⅰ(siameno-sideⅠ),罗汉果皂苷Ⅳa(mogroside Ⅳa)、罗汉果皂苷Ⅳe(mogroside Ⅳ e),罗汉果皂苷(mogroside Ⅴ)、11-氧-罗汉果皂苷Ⅴ(11-oxo-mogroside Ⅴ).结论:mogroside Ⅲ A1为首次从天然产物中分离得到,鉴定其结构为罗汉果醇-24-O-β-D-毗喃葡萄糖基(1→2)-[β-D-毗喃葡萄糖基(1→6)]-β-D-毗喃葡萄糖苷{Mogrol-24-O-β-D-glucopyranosyl(1→2)-[β-D-glucopyranosyl(1→6)-β-D-glucopyranoside};其余5个化合物为已知化合物.     

In vitro anthelmintic activity of crude extracts of five medicinal plants against egg-hatching and larval development of Haemonchus contortus

Ethnopharmacological relevance

Senna occidentalis, Leonotis ocymifolia, Leucas martinicensis, Rumex abyssinicus, and Albizia schimperiana are traditionally used for treatment of various ailments including helminth infection in Ethiopia.

Materials and Methods

In vitro egg hatch assay and larval development tests were conducted to determine the possible anthelmintic effects of crude aqueous and hydro-alcoholic extracts of the leaves of Senna occidentalis, aerial parts of Leonotis ocymifolia, Leucas martinicensis, Rumex abyssinicus, and stem bark of Albizia schimperiana on eggs and larvae of Haemonchus contortus.

Results

Both aqueous and hydro-alcoholic extracts of Leucas martinicensis, Leonotis ocymifolia and aqueous extract of Senna occidentalis and Albizia schimperiana induced complete inhibition of egg hatching at concentration less than or equal to 1 mg/ml. Aqueous and hydro-alcoholic extracts of all tested medicinal plants have shown statistically significant and dose dependent egg hatching inhibition. Based on ED₅₀, the most potent extracts were aqueous and hydro-alcoholic extracts of Leucas martinicensis (0.09 mg/ml), aqueous extracts of Rumex abyssinicus (0.11 mg/ml) and Albizia schimperiana (0.11 mg/ml). Most of the tested plant extracts have shown remarkable larval development inhibition. Aqueous extracts of Leonotis ocymifolia, Leucas martinicensis, Albizia schimperiana and Senna occidentalis induced 100, 99.85, 99.31, and 96.36% inhibition of larval development, respectively; while hydro-alcoholic extracts of Albizia schimperiana induced 99.09 inhibition at the highest concentration tested (50 mg/ml). Poor inhibition was recorded for hydro-alcoholic extracts of Senna occidentalis (9%) and Leonotis ocymifolia (37%) at 50 mg/ml.

Conclusions

The overall findings of the current study indicated that the evaluated medicinal plants have potential anthelmintic effect and further in vitro and in vivo evaluation is indispensable to make use of these plants.     

丹参多糖的组成分析

目的:了解丹参多糖种类和相对分子质量的分布情况。方法:通过高效凝胶渗透色谱技术,分析了丹参多糖相对分子质量的分布情况。结果:丹参多糖按照相对分子质量分布,明显分成两部分。结论:丹参多糖低相对分子质量部分是一个纯度很高的多糖,具有一定的开发价值。