Chemical components and antifungal activities of extracts from the husk of <EM>Carya cathayensis</EM>

LIN Jun-yang; MA Liang-jin; CHEN An-liang; ZHANG Li-qin

Volume 26 Issue 1

Feb. 2009

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LIN Jun-yang, MA Liang-jin, CHEN An-liang, ZHANG Li-qin. Chemical components and antifungal activities of extracts from the husk of Carya cathayensis[J]. Journal of Zhejiang A&F University, 2009, 26(1): 100-104.

Citation:

LIN Jun-yang, MA Liang-jin, CHEN An-liang, ZHANG Li-qin. Chemical components and antifungal activities of extracts from the husk of Carya cathayensis[J]. Journal of Zhejiang A&F University, 2009, 26(1): 100-104.

Chemical components and antifungal activities of extracts from the husk of Carya cathayensis

1.
School of Forestry and Biotechnology，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China

Received Date: 2008-03-03
Rev Recd Date: 2008-08-11
Publish Date: 2009-02-20

Abstract

Carya cathayensis is distributed around Mount Tianmu and its nut production is one of the important incomes for the local people. The husks，which were often thrown away randomly，were confirmed having antifungal activities. Petroleum ether，chloroform，ethyl acetate，and n-butanol solvents were used to extract and separate the methanol extraction from the husk of C. cathayensis and get four fractions. Next，antifungal activities of the four fractions were compared to Alternaria solani，Valsa mali，Fusarium graminearum，Rhizoctonia solani and Sclerotinia sclerotiorum. The chloroform fraction was then separated by silica gel column chromatography. Results showed that antifungal activity with the four solvents was in the order：n-butanol （activity up to 100%）＞ chloroform and petroleum ether ＞ ethyl acetate. Also，silica gel column chromatography revealed two compounds identified as 5-hydroxy-2-methoxy-1，4-naphthoquinone and β-sitosterol，which inhibited conidial germination of Botrytis cinerea and Fusarium graminearum.［Ch，1 fig. 2 tab. 13 ref.］
- forest protection,
- Carya cathayensis,
- chemical components,
- antifungal activity,
- 5-hydroxy-2-methoxy-1,
- 4-naphthoquinone

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Chemical components and antifungal activities of extracts from the husk of Carya cathayensis

1. School of Forestry and Biotechnology，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China

Received Date: 2008-03-03

Rev Recd Date: 2008-08-11

Publish Date: 2009-02-20

Key words:

Abstract: Carya cathayensis is distributed around Mount Tianmu and its nut production is one of the important incomes for the local people. The husks，which were often thrown away randomly，were confirmed having antifungal activities. Petroleum ether，chloroform，ethyl acetate，and n-butanol solvents were used to extract and separate the methanol extraction from the husk of C. cathayensis and get four fractions. Next，antifungal activities of the four fractions were compared to Alternaria solani，Valsa mali，Fusarium graminearum，Rhizoctonia solani and Sclerotinia sclerotiorum. The chloroform fraction was then separated by silica gel column chromatography. Results showed that antifungal activity with the four solvents was in the order：n-butanol （activity up to 100%）＞ chloroform and petroleum ether ＞ ethyl acetate. Also，silica gel column chromatography revealed two compounds identified as 5-hydroxy-2-methoxy-1，4-naphthoquinone and β-sitosterol，which inhibited conidial germination of Botrytis cinerea and Fusarium graminearum.［Ch，1 fig. 2 tab. 13 ref.］

Chemical components and antifungal activities of extracts from the husk of Carya cathayensis

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1. School of Forestry and Biotechnology，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China

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