7α-Hydroxy-8β,9β-H- cis- bicyclo[4,3,0]non-4-ene-4-aldehyde, a nonane compound with novel skeleton, named tsaokoin, was isolated from the fruits of Amomum tsao-ko. Its structure was established on the basis of spec...7α-Hydroxy-8β,9β-H- cis- bicyclo[4,3,0]non-4-ene-4-aldehyde, a nonane compound with novel skeleton, named tsaokoin, was isolated from the fruits of Amomum tsao-ko. Its structure was established on the basis of spectral analysis.展开更多
[Objectives]To study the antioxidant activity of the ethyl acetate extract of Amomum villosum Lour.[Methods]The removal rate of chelated iron ions,hydroxyl radicals,superoxide anion free radicals and DPPH free radical...[Objectives]To study the antioxidant activity of the ethyl acetate extract of Amomum villosum Lour.[Methods]The removal rate of chelated iron ions,hydroxyl radicals,superoxide anion free radicals and DPPH free radicals by the ethyl acetate extract of A.villosum Lour.was determined by UV spectrophotometer.[Results]0.5000μg/mL ethyl acetate extract of A.villosum Lour.had the strongest ability to chelate with ferrous ions and to remove hydroxyl radicals,superoxide anion free radicals and DPPH free radicals.The ability to chelate with ferrous ions was 95.14%,and the removal rate of the above free radicals was 86.217%,81.44%,and 85.16%.[Conclusions]The ethyl acetate extract of A.villosum Lour.had a strong antioxidant effect,and its antioxidant capacity was related to the sample concentration,which provides a theoretical basis for its application in the development of antioxidant skin care products.展开更多
Tsaokols A(1)and B(2),two complicated flavanol-monoterpenoid hybrids,were isolated from the dried fruits of Amomum tsao-ko under the guidance of LCMS and bioassay.Their structures were determined by extensive spectros...Tsaokols A(1)and B(2),two complicated flavanol-monoterpenoid hybrids,were isolated from the dried fruits of Amomum tsao-ko under the guidance of LCMS and bioassay.Their structures were determined by extensive spectroscopic analyses and electronic circular dichroism(ECD)calculations.Compounds 1 and2 shared a flavanol backbone fused with 5/7 and 5/6 bicyclic monoterpenoid scaffolds,which were biogenetically condensed by Michael addition and acetalization.Compounds 1 and 2 exhibited significantα-glucosidase inhibitory activity with IC_(50)values of 18.8 and 38.6μmol/L(acarbose,IC_(50)=213μmol/L).Docking study supported the strong interactions of 1 and 2 bonding with enzyme by mainly hydrophobic and hydrogen-bond effects.Compounds 1 and 2 could be fast distinguished by the diagnostic ions at m/z 289 and 313 in negative MS^(2)experiments.展开更多
In order to develop and utilize the tropical medicinal resource Amomum(A.)longiligulare T.L.Wu more reasonably and effectively,this paper summarizes the research progress in chemical constituents and pharmacological a...In order to develop and utilize the tropical medicinal resource Amomum(A.)longiligulare T.L.Wu more reasonably and effectively,this paper summarizes the research progress in chemical constituents and pharmacological activities of A.longiligulare by consulting the literatures,so as to provide a certain theoretical basis for exploring its material basis.The chemical constituents of A.longiligulare mainly include volatile oil,diphenylheptane and flavonoids,which have good efficacy in anti-peptic ulcer,as well as antioxidant,analgesic and other pharmacological activities.This paper briefly discusses the reasons for the differences in the composition of volatile oil studied by different scholars.By summarizing its pharmacological activities,it is found that its various pharmacological activities may be the basis of its anti-peptic ulcer.展开更多
以“草果”“菌”“病毒”“化学成分”“作用机制”“Amomum tsao-ko”“Antibacterial”“Antimicrobial”“Virus”“Chemical composition”“Mechanism”等为关键词,在中国知网、维普数据库、中国专利网、PubMed、Web of Science...以“草果”“菌”“病毒”“化学成分”“作用机制”“Amomum tsao-ko”“Antibacterial”“Antimicrobial”“Virus”“Chemical composition”“Mechanism”等为关键词,在中国知网、维普数据库、中国专利网、PubMed、Web of Science等数据库中组合查询到2011~2023年中的有效文献57篇,对草果抗菌物质基础、抗菌活性与机理、抗病毒活性等方面进行归纳与总结。表明草果具有广谱的抗微生物活性,对细菌、真菌和HSV-1病毒均具有不同程度的体外抑制作用和体内抗感染作用,其中挥发油、酚酸、黄酮及双环壬烷类为草果抗菌物质基础,作用机制主要表现为破坏细胞壁、细胞膜的完整性及抑制病原菌的呼吸代谢过程。但目前对草果抗微生物作用多局限于粗提物的体外抑制,体内各个药物组分之间的相互作用并不明确,且缺乏毒理学和药动学的相关研究,其安全性及药效物质基础尚需进一步深入探索。展开更多
文摘7α-Hydroxy-8β,9β-H- cis- bicyclo[4,3,0]non-4-ene-4-aldehyde, a nonane compound with novel skeleton, named tsaokoin, was isolated from the fruits of Amomum tsao-ko. Its structure was established on the basis of spectral analysis.
基金Supported by the Innovation and Entrepreneurship Training Planning Project for University Students in Guangxi Autonomous Region(S202210599128X).
文摘[Objectives]To study the antioxidant activity of the ethyl acetate extract of Amomum villosum Lour.[Methods]The removal rate of chelated iron ions,hydroxyl radicals,superoxide anion free radicals and DPPH free radicals by the ethyl acetate extract of A.villosum Lour.was determined by UV spectrophotometer.[Results]0.5000μg/mL ethyl acetate extract of A.villosum Lour.had the strongest ability to chelate with ferrous ions and to remove hydroxyl radicals,superoxide anion free radicals and DPPH free radicals.The ability to chelate with ferrous ions was 95.14%,and the removal rate of the above free radicals was 86.217%,81.44%,and 85.16%.[Conclusions]The ethyl acetate extract of A.villosum Lour.had a strong antioxidant effect,and its antioxidant capacity was related to the sample concentration,which provides a theoretical basis for its application in the development of antioxidant skin care products.
基金supported by the Yunnan Wanren Project(Nos.YNWR-KJLJ-2019-002 and YNWR-QNBJ-2018-061)the Yunnan Science Fund for Excellent Young Scholars(No.2019FI017)+1 种基金the Program of Yunling Scholar,the Youth Innovation Promotion Association,CAS(No.Y201756)the Reserve Talents of Young and Middle-aged Academic and Technical Leaders in Yunnan Province。
文摘Tsaokols A(1)and B(2),two complicated flavanol-monoterpenoid hybrids,were isolated from the dried fruits of Amomum tsao-ko under the guidance of LCMS and bioassay.Their structures were determined by extensive spectroscopic analyses and electronic circular dichroism(ECD)calculations.Compounds 1 and2 shared a flavanol backbone fused with 5/7 and 5/6 bicyclic monoterpenoid scaffolds,which were biogenetically condensed by Michael addition and acetalization.Compounds 1 and 2 exhibited significantα-glucosidase inhibitory activity with IC_(50)values of 18.8 and 38.6μmol/L(acarbose,IC_(50)=213μmol/L).Docking study supported the strong interactions of 1 and 2 bonding with enzyme by mainly hydrophobic and hydrogen-bond effects.Compounds 1 and 2 could be fast distinguished by the diagnostic ions at m/z 289 and 313 in negative MS^(2)experiments.
基金supported by the National Natural Science Foundation of China(81660649),and Innovative Scientific Research Project for Postgraduates of Hainan Medical University(HYYS2020-05)。
文摘In order to develop and utilize the tropical medicinal resource Amomum(A.)longiligulare T.L.Wu more reasonably and effectively,this paper summarizes the research progress in chemical constituents and pharmacological activities of A.longiligulare by consulting the literatures,so as to provide a certain theoretical basis for exploring its material basis.The chemical constituents of A.longiligulare mainly include volatile oil,diphenylheptane and flavonoids,which have good efficacy in anti-peptic ulcer,as well as antioxidant,analgesic and other pharmacological activities.This paper briefly discusses the reasons for the differences in the composition of volatile oil studied by different scholars.By summarizing its pharmacological activities,it is found that its various pharmacological activities may be the basis of its anti-peptic ulcer.
文摘以“草果”“菌”“病毒”“化学成分”“作用机制”“Amomum tsao-ko”“Antibacterial”“Antimicrobial”“Virus”“Chemical composition”“Mechanism”等为关键词,在中国知网、维普数据库、中国专利网、PubMed、Web of Science等数据库中组合查询到2011~2023年中的有效文献57篇,对草果抗菌物质基础、抗菌活性与机理、抗病毒活性等方面进行归纳与总结。表明草果具有广谱的抗微生物活性,对细菌、真菌和HSV-1病毒均具有不同程度的体外抑制作用和体内抗感染作用,其中挥发油、酚酸、黄酮及双环壬烷类为草果抗菌物质基础,作用机制主要表现为破坏细胞壁、细胞膜的完整性及抑制病原菌的呼吸代谢过程。但目前对草果抗微生物作用多局限于粗提物的体外抑制,体内各个药物组分之间的相互作用并不明确,且缺乏毒理学和药动学的相关研究,其安全性及药效物质基础尚需进一步深入探索。
