银杏叶提取物(Extracts of Ginkgo biloba,EGb)具有诸多生物活性,但银杏酚酸的存在限制了EGb的应用。目前,去除EGb中银杏酚酸的方法主要有有机溶剂法和柱层析法,笔者在有机溶剂法的基础上提出配位-有机溶剂法,即在有机溶剂法最佳工艺条...
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银杏叶提取物(Extracts of Ginkgo biloba,EGb)具有诸多生物活性,但银杏酚酸的存在限制了EGb的应用。目前,去除EGb中银杏酚酸的方法主要有有机溶剂法和柱层析法,笔者在有机溶剂法的基础上提出配位-有机溶剂法,即在有机溶剂法最佳工艺条件的基础上引入金属离子配位以增加去除银杏酚酸的效果。结果表明:利用配位-有机溶剂法可以有效去除银杏酚酸,并有效减少有机溶剂洗涤次数,且不影响总银杏黄酮苷和总银杏内酯的含量;同时,EGb中的部分黄酮与锌离子形成配合物,可以提高EGb的抗肝癌细胞(HepG2)的活性。
The increasing resistance of bacteria and fungi to currently available antibiotics is a major concern world-wide,leading to enormous effort to develop novel antibiotics with new modes of *** recently reported that ABP...
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The increasing resistance of bacteria and fungi to currently available antibiotics is a major concern world-wide,leading to enormous effort to develop novel antibiotics with new modes of *** recently reported that ABP-dHC-cecropin A exhibited strong antibacterial and antifungal activity,making it a candidate antibiotic *** this study,β-cyclodextrin(β-CD) combined with ABP-dHC-cecropin A enhanced the physical and chemical properties of ABP-dHC-cecropin A but did not significantly decrease its antibacterial ***,β-CD/ABP-dHC-cecropin A should be considered a novel antibacterial *** used β-CD/ABP-dHC-cecropin A as an anti-Agrobacterium compound to supplement transgenic poplar *** effects of the inclusion complex had little impact on plant ***,β-CD/ABP-dHC-cecropin A may be used as traditional antibiotics for poplar transplantation with greater antibacterial effects.
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