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
Objective:To optimize the technological conditions of ultrasonic-assisted extraction of Amomum longiligulare T.L.Wu polysaccharides and increase the yield of polysaccharides.Methods:The polysaccharide was prepared by ...Objective:To optimize the technological conditions of ultrasonic-assisted extraction of Amomum longiligulare T.L.Wu polysaccharides and increase the yield of polysaccharides.Methods:The polysaccharide was prepared by water extraction and alcohol precipitation method,and the yield of polysaccharide was taken as an index.The effects of ultrasonic time,extraction times,ultrasonic temperature,and water-to-material ratio on polysaccharide yield were investigated through a single factor experiment.Combined experimental design and response surface analysis were used to optimize the extraction process of Amomum longiligulare T.L.Wu polysaccharides.Results:The optimum conditions of ultrasonic-assisted extraction were determined as follows:extraction time of 29 min,three extraction times,water bath extraction temperature of 68℃,water-to-material ratio of 15:1;under these conditions,the polysaccharide yield was 10.69%.Conclusion:The results are close to the predicted values of the model.This optimization test is effective and feasible,and provides a reference for the related research of Amomum longiligulare T.L.Wu.展开更多
The volatile oils from rhizome of Alpinia blepharocalyx K.Schum.and A.kwangsiensis T.L.Wu et Senjen were extracted by steam distillation and analyzed by gas chromatography-mass spectrometry.The results indicate that c...The volatile oils from rhizome of Alpinia blepharocalyx K.Schum.and A.kwangsiensis T.L.Wu et Senjen were extracted by steam distillation and analyzed by gas chromatography-mass spectrometry.The results indicate that cinnamic acid methyl ester,as the main component,makes up 90.88% and 94.54% of oils from A.blepharocalyx and A.kwangsiensis,respectively.Apart from cinnamic acid methyl ester,there are other 20 same components in two volatile oils,showing that two plants are close relationship from the point of chemotaxonomy.These results provide basic data for chemotaxonomy and comprehensive utilization of A.blepharocalyx and A.kwangsiensis.展开更多
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.
基金National Natural Science Foundation of China(No.81660649)Hainan Medical College Student Innovation and Entrepreneurship Training Program Project(No.201811810007)。
文摘Objective:To optimize the technological conditions of ultrasonic-assisted extraction of Amomum longiligulare T.L.Wu polysaccharides and increase the yield of polysaccharides.Methods:The polysaccharide was prepared by water extraction and alcohol precipitation method,and the yield of polysaccharide was taken as an index.The effects of ultrasonic time,extraction times,ultrasonic temperature,and water-to-material ratio on polysaccharide yield were investigated through a single factor experiment.Combined experimental design and response surface analysis were used to optimize the extraction process of Amomum longiligulare T.L.Wu polysaccharides.Results:The optimum conditions of ultrasonic-assisted extraction were determined as follows:extraction time of 29 min,three extraction times,water bath extraction temperature of 68℃,water-to-material ratio of 15:1;under these conditions,the polysaccharide yield was 10.69%.Conclusion:The results are close to the predicted values of the model.This optimization test is effective and feasible,and provides a reference for the related research of Amomum longiligulare T.L.Wu.
文摘The volatile oils from rhizome of Alpinia blepharocalyx K.Schum.and A.kwangsiensis T.L.Wu et Senjen were extracted by steam distillation and analyzed by gas chromatography-mass spectrometry.The results indicate that cinnamic acid methyl ester,as the main component,makes up 90.88% and 94.54% of oils from A.blepharocalyx and A.kwangsiensis,respectively.Apart from cinnamic acid methyl ester,there are other 20 same components in two volatile oils,showing that two plants are close relationship from the point of chemotaxonomy.These results provide basic data for chemotaxonomy and comprehensive utilization of A.blepharocalyx and A.kwangsiensis.
