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六须鲶人工繁殖中用抑活液抑活提高卵受精率
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作者 吴汉群 《湖北渔业》 1993年第1期59-61,共3页
关键词 六须鲶 繁殖力 抑活液 受精率
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Nematicidal Activity of Ten Kinds of Plant Extract against Hirschmanniella spp. 被引量:1
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作者 金晨钟 刘桂英 +3 位作者 刘秀 覃梦 谭显胜 刘玉婷 《Agricultural Science & Technology》 CAS 2014年第12期2164-2166,2200,共4页
[Objective] The nematicidal activity of plant extracts was investigated. We aimed to explore a kind of botanical pesticide to control Hirschmanniella spp. [Method] The Chuanxiong (root), agrimony (whole plant), co... [Objective] The nematicidal activity of plant extracts was investigated. We aimed to explore a kind of botanical pesticide to control Hirschmanniella spp. [Method] The Chuanxiong (root), agrimony (whole plant), cocklebur (grain), basil (leaves), ragweed (stems and leaves), green onion (root), garlic (tuber), Yuzhu (leaves), marshpeper smartweed (whole plant), horseweed (aboveground stems and leaves) were dried, grinded and sieved. The powders were then extracted by ethanol at room temperature for 24 h. The extract solutions were filtered through fil- ter pater. The obtained plant extracts were then diluted to determine their nematici- dal activities. [Result] The Chuanxiong extract had the highest nematicidal activity, followed by cocklebur extract, agrimony extract, basil extract, garlic extract, ragweed extract. The horseweed extract had the lowest nematicidal activity. [Conclusion] The Chuanxiong and other plants were natural, and they had a good environmental compatibility. They could be developed as botanical pesticides against Hirschman- niella spp. 展开更多
关键词 Hirschmanniella spp. EXTRACT Nematicidal activity
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Isolation and Purification of Triptolide from the Leaves of Tripterygium wilfordii Hook F 被引量:5
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作者 沈剑 何潮洪 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2010年第5期750-754,共5页
Triptolide is an important active component of Tripterygium wilfordii Hook F (TWHF) and possesses anti-inflammatory, immunosuppressive, male anti-fertility, and anticancer properties. A new method combining different ... Triptolide is an important active component of Tripterygium wilfordii Hook F (TWHF) and possesses anti-inflammatory, immunosuppressive, male anti-fertility, and anticancer properties. A new method combining different techniques, including solid-liquid extraction, liquid-liquid partition, column chromatography and high-speed counter-current chromatography (HSCCC) but avoiding the use of chloroform, was developed for the isolation and purification of triptolide from the leaves of TWHF. 48 mg of triptolide at 96.5% purity was obtained from 1 kg of air-dried leaves of TWHF. 展开更多
关键词 Tripterygium wilfordii Hook F TRIPTOLIDE high-speed counter-current chromatography
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