New Synthetic Glucosyl-Curcuminoids,and their <Superscript>1</Superscript>H and <Superscript>13</Superscript>C NMR Characterization,from <Emphasis Type="Italic">Curcuma longa</Emphasis> L.     

Monica Saladini  Sandra Lazzari  Francesca Pignedoli  Roberto Rosa  Ferdinando Spagnolo  Erika Ferrari 《Plant foods for human nutrition (Dordrecht, Netherlands)》2009,64(3):224-229

Turmeric extracts, among which curcumin and bis-demethoxycurcumin, are by far known for their therapeutic activities. In this study we propose easy and low cost synthetic pathways in order to obtain glucosyl-curcuminoids, safe and water soluble potential drugs and dyes, which may be implied in different fields ranging from pharmacology to food chemistry. The complete ¹H and ¹³C NMR characterization of naturally occurring curcumin, bis-demethoxycurcumin and new synthetic glucosyl-curcuminoids is reported.  相似文献   

桃蛀螟在广西莪术上的发生危害规律及防治研究     

蒋妮  刘丽辉  缪剑华  叶云峰  刘威  胡凤云 《湖北农业科学》2016,(1):82-85

研究了桃蛀螟(Conogethes punctiferalis)的为害特性与田间药剂及诱集植物的防治效果。结果表明,桃蛀螟从心叶开始自上而下钻蛀为害广西莪术(Cureuma kwangsiensis)茎部,7~9月为全年为害高峰期;供试的6种药剂中20%氯虫苯甲酰胺悬浮剂、2.5%三氟氯氰菊酯乳油防效较好,分别为76.52%、71.62%;种植诱集植物红球姜并辅以使用1次氯虫苯甲酰胺,受害株率减少93.71%,虫口减退率96.21%。  相似文献   

5种姜黄属植物的根茎形态及其相关特性与开花特性     

沈荔荔  许丽珍  吕锦权  盛爱武  刘念 《仲恺农业工程学院学报》2014,27(4):11-14

对5种姜黄属(Curcuma L.)植物根茎的形态及其贮藏期根茎的相关特性与人工栽培条件下的开花特性进行了研究.结果表明,可直接用肉眼分辨南岭莪术(Curcuma kwangsiensis var.naulingensis)、广西莪术(C.kwangsiensis),而南昆山莪术(C.nankunshanensis)、郁金(C.aromatica)、大莪术(C.elata)则需切开根茎通过颜色分辨;在整个栽培过程中,水培条件下姜黄属植物的开花率优于土培;南岭莪术开花率最高,且其根茎内蛋白质浓度最高;南昆山  相似文献   

60Co-γ射线辐射对姜黄的诱变效应研究     

吴萍  郭俊霞  王晓宇  李青苗  张松林  李伟健  彭宇 《核农学报》2021,35(1):1-6

为探讨60Co-γ射线对姜黄的诱变效应,本研究以姜黄种根为研究对象,采用不同剂量(60、70、80、90 Gy)的60Co-γ射线进行辐射处理,分析VM1和VM2材料的田间表现.结果表明,姜黄种根经60Co-γ射线辐射后VM1生长受到明显的抑制,植株的出苗率、株高、叶长、叶宽、地上部分干重、根茎鲜重等指标均显著低于对照...  相似文献   

传统产区温郁金连作的水肥管理技术研究   总被引：1，自引：0，他引：1  

冷春鸿  徐杰  姜程曦  吴志刚 《现代农业科学》2009,(2):36-37

针对中药材温郁金传统产区连作障碍,进行田间施肥和水分管理试验研究,提出了科学配方施肥技术规程,为温郁金规范化种植（GAP）的生产实践操作规程（SOP）提供技术资料。  相似文献   

Chemical constituents from the radix of Curcuma wenyujin     

Zhong-Jun Ma  Zhao-Ke Meng  Peng Zhang   《Fitoterapia》2009,80(6):374-376

Phytochemical study on the ethanol extract of the radixes of Curcuma wenyujin Y. H. Chen et C. Ling led to the isolation of three new compounds curcuminol F (1) curcuminol G (2) and wenyujinoside (3) and a known compound aurantiamide (4). Their structures were elucidated on the basis of extensive spectroscopic analysis.  相似文献   

Isolation,characterization and insect growth inhibitory activity of major turmeric constituents and their derivatives against Schistocerca gregaria (Forsk) and Dysdercus koenigii (Walk)     

Hemanta Chowdhury  Suresh Walia  Vinod S Saxena 《Pest management science》2000,56(12):1086-1092

Curcuminoids, the major colouring constituents of Curcuma longa (turmeric) rhizome powder, comprise mainly three closely related curcumins (I, II and III). A simple method has been devised for their efficient extraction and separation. Their structures have been confirmed by ¹H NMR spectroscopy and unique mass fragmentation pattern. Curcumin‐I, the major constituent has been converted to five alkyl ether derivatives, which have been tested along with the parent compounds and other extractives for insect growth inhibitory activity against Schistocerca gregaria and Dysdercus koenigii nymphs. At 20 µg per nymph, benzene extract and dibutyl curcumin‐I were the most active (60% inhibition) against S gregaria, whereas at 50 µg per nymph these substances exhibited moderate growth‐inhibitory activity (45%) against D koenigii nymphs. At these concentrations, turmeric oil caused 50–60% nymphal mortality in both test insects. The insect control activity of most of the turmeric products was comparable to or better than that of a commercial neem formulation. © 2000 Society of Chemical Industry  相似文献   

外泌体作为温郁金活性成分姜黄素载体的研究进展     

郭月琴  赵祺  袁玮  姜程曦 《园艺与种苗》2020,(2):40-44

外泌体是细胞分泌的纳米级别膜性小泡,能够介导细胞间信号转导和信息交流,并且参与人体内各种疾病的生理过程,可以作为一种天然的药物载体。姜黄素是中药温郁金的活性成分之一,因其广泛而明确的药理作用成为现代药理研究的热点,但由于姜黄素溶解度差、结构不稳定、体内代谢过程快,生物利用度低,严重限制了其临床推广应用。而通过将外泌体作为姜黄素载体,可以更好地发挥药理作用。该研究综述了外泌体生物学特性及外泌体作为姜黄素载体的研究进展。  相似文献   

粗糙集聚类分析对姜黄属植物数值分类的研究Ι     

WANG Zheng-de et al 《安徽农业科学》2006,(17)

以姜科姜黄属(CurcumaL.)的31种植物为研究对象,把47项分类性状(指标)分解为定性指标和定量指标,将定性指标进一步分解为二元性状指标和三元性状指标,然后各自进行粗糙集理论的处理和聚类,把聚类结果按交集分类的办法形成定性指标综合分类的结果,分出8大类,并与肖小河等用47项指标进行主成分析和聚类分析的结果加以比较。结果表明:把分类性状(指标)分解是合理的、正确的,所分出的结果较为精确,与实际更为相符;粗糙集理论与聚类分析相结合是非常有意义的。  相似文献   

模拟氮沉降对温郁金叶丛期叶面积形成的影响     

荣海  洪伟  吴承祯  范海兰  李键  陈灿 《福建林学院学报》2011,31(1)

采用喷施硝酸铵(NH4NO3)模拟氮沉降对温郁金叶丛期叶面积形成的影响。试验设对照(CK)、低氮(T50)、中氮(T100)和高氮(T150)4个处理组,对应的氮沉降量分别为0、50、100、150 kg.hm-2.a-1。结果表明,T150、T100处理能显著提高温郁金总叶面积、主秆茎单叶面积和额外叶面积(P<0.05)。与CK相比,在T150、T100处理下,温郁金总叶面积分别提高了151.71%和112.89%;主秆茎单叶面积也分别提高了27.81%和19.71%(8月份);氮沉降对主秆茎的叶片数目无显著影响。高浓度和中浓度的氮沉降对温郁金叶丛期叶面积的形成具有促进作用,氮沉降主要通过增加温郁金主秆茎单叶面积和额外叶面积来增加总叶面积。  相似文献