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林业科学 ›› 2009, Vol. 12 ›› Issue (12): 90-94.doi: 10.11707/j.1001-7488.20091215

• 论文 • 上一篇    下一篇

山核桃外果皮中的抑菌活性成分*

马良进1 林君阳2 李桥1 张立钦1 陈安良1   

  1. 1.浙江林学院林业与生物技术学院 临安 311300; 2.浙江省天台县林业特产局 天台 317200
  • 收稿日期:2008-10-29 修回日期:1900-01-01 出版日期:2009-12-25 发布日期:2009-12-25
  • 通讯作者: 陈安良
  • 基金资助:
     

Antifungal Constituents from the Husk of Carya cathayensis

Ma Liangjin1 Lin Junyang2 Li Qiao1 Zhang Liqin1 Chen Anliang1   

  1. 1.School of Forestry and Biotechnology,Zhejiang Forestry College Linan 311300; 2.Tiantai Forestry Speciality Bureau Tiantai 317200
  • Received:2008-10-29 Revised:1900-01-01 Online:2009-12-25 Published:2009-12-25
  • Supported by:
     

摘要:

用不同溶剂对山核桃外果皮甲醇浸膏进行萃取分离,得石油醚相、氯仿相、乙酸乙酯相、正丁醇相,以番茄早疫病菌、苹果腐烂病菌、小麦赤霉病菌、水稻纹枯病菌、黄瓜菌核病菌等5种病菌进行抑菌活性试验。结果表明:正丁醇相抑菌活性最强,氯仿相和石油醚相次之,乙酸乙酯相最弱。对氯仿相进行初步分离,得到7个单体化合物:乔松酮,黄卡瓦胡椒素,5-羟基-4′,7-二甲氧基黄酮,5-羟基-2-甲氧基-1,4-萘醌,5-羟基-6,7-二甲氧基黄烷酮,乔松素,β-谷甾醇,均为首次从山核桃中分离得到,它们对玉米大斑病菌和水稻稻瘟病菌孢子萌发均有不同程度的抑制作用。

关键词: 山核桃, 萃取分离, 活性成分, 抑菌活性

Abstract:

Methanol extract of husk of Carya cathayensis was further partitioned with petroleum ether,chloroform,ethyl acetate and n-butanol successively and obtained four crude extracts. Antifungal activity of the four crude extracts was tested against Alternaria solani, Valsa mali,Gibberella zeae,Rhizoctonia solani and Sclerotinia Sclerotiorum. It showed that the n-butanol extract had the highest activity,ed by the chloroform extract and the petroleum ether extract,and the ethyl acetate extract had the lowest activity. Seven compounds were isolated from the chloroform extract. Their structures were identified as pinostrobin,plavokawain B,5-hydroxy-4′,7-dimethoxyflavanone,5-hydroxy-2-methoxy-1,4-naphthoquinone,onysilin,pinocembrin and β-sitosterol,respectively. The Compounds were for the first time isolated from Carya cathayensis and showed to different degree inhibitory activities against the spore germination of Exserohilum turcicum and Pyricularia grisea.

Key words: Carya cathayensis, extract and isolation, bioactive ingredients, antifungal activity

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