...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Agricultural and Food Chemistry >Bisdesmosidic Saponins from Securidaca longepedunculata Roots: Evaluation of Deterrency and Toxicity to Coleopteran Storage Pests
【24h】

Bisdesmosidic Saponins from Securidaca longepedunculata Roots: Evaluation of Deterrency and Toxicity to Coleopteran Storage Pests

机译：Securidaca longepedunculata根的双糖苷皂苷：对鞘翅目害虫的清洁性和毒性评估

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Powdered dry root bark of Securidaca longepedunculata was mixed with maize and cowpea and effectively reduced the numbers of Sitophilus zeamals and Callosobruchus maculatus emerging from these commodities, respectively, more than 9 months after treatment. This effect was reciprocated in grain treated with a methanol extract of the root bark, indicating that compounds were present that were oviposition deterrents or directly toxic to the adults or larvae. Two new bisdesmosidic saponins, 3-O-β-d-glucopyranosyl-28-O-(α-L-arabinopyranosyl-(1 -> 3)-β-D-xylopyranosyl-(1 -> 4)[β-D-apiofuranosyl-(1->3)]-α-L-rhamndpyranosyl-(1 -> 2)-[4-O-(4-methoxycinnamoyl-β-D-fucopyranosyl)])-medicagenic acid (securi-dacaside A) and 3-O-β-D-glucopyranosyl-28-O-(α-L-arabinopyranosyl-(1-> 3)-β-D-xylopyranosyl-(1 -> 4)-[β-D-apiofuranosyl-(1->3)]-α-L-rhamnopyranosyl-(1->2)-[4-O-(3,4,5-trimethoxy-(E)-cinnamoyl-β-D-fucopy-ranosyl)])-medicagenic acid (securidacaside B), were isolated from the methanol extract of the roots of S. longepedunculata and characterized by spectroscopic methods. Securidacaside A, which occurred as (E)- and (Z)-regioisomers, showed deterrency and toxicity toward C. maculatus and S. zeamais and could contribute to the biological activity of the methanol extract. The potential to optimize the use of this plant for stored product protection using water extracts, which would be appropriate technology for target farmers, is discussed.
机译：在处理后的9个月以上，将粉状干粉状Securidaca longepedunculata的根皮与玉米和cow豆混合，分别有效地减少了从这些商品中产生的Sitophilus zeamal和Callosobruchus maculatus的数量。在用根皮的甲醇提取物处理过的谷物中，这种作用是可逆的，表明存在抑制产卵或对成虫或幼虫有直接毒性的化合物。两种新的双去糖苷皂苷3-O-β-d-吡喃葡萄糖基-28-O-（α-L-阿拉伯吡喃糖基-（1-> 3）-β-D-木吡喃糖基-（1-> 4）[β-D- apiofuranosyl-（（1-> 3）]-α-L-rhamndpyranosyl-（1-> 2）-[4-O-（4-methoxycinnamoyl-β-D-fucopyranosyl）]）-药用酸（securi-dacaside A）和3-O-β-D-吡喃葡萄糖基-28-O-（α-L-阿拉伯吡喃糖基-（1-> 3）-β-D-吡喃吡喃糖基-（1-> 4）-[β-D-吡喃呋喃糖基-（ 1-> 3）]-α-L-鼠李吡喃糖基-（1-> 2）-[4-O-（3,4,5-三甲氧基-（E）-肉桂酰基-β-D-呋喃核糖基）]]）从长链葡萄球菌根的甲醇提取物中分离出β-药用酸（securidacaside B），并用分光光度法进行了表征。 Securidacaside A（以（E）-和（Z）-区域异构体出现）显示出对斑节梭菌和玉米赤霉菌的去污力和毒性，并可能有助于甲醇提取物的生物活性。讨论了利用水提取物优化该植物用于储藏产品保护的潜力，这将是适合目标农户的技术。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号