A new sesquiterpene lactone, strychnilactone (1), together with five known sesquite- rpenoids, linderane (2), lindenenol (3), linderalactone (4), hydroxylindestenolide (5), pseudoneo- linderane (6) have been isolated ...A new sesquiterpene lactone, strychnilactone (1), together with five known sesquite- rpenoids, linderane (2), lindenenol (3), linderalactone (4), hydroxylindestenolide (5), pseudoneo- linderane (6) have been isolated from the extracts of Supercritical Fluid Extraction of Lindera strychnifolia. The structure of the new compound was elucidated by means of spectroscopic analysis. And the relative configuration of 1 was assigned on the basis of NOE analysis.展开更多
One new A - type proanthocyanidin trimer, lindetarmin trimer, was isolated from thestems of Lindera aggregata (Sims) Kosterm.. Its structure was elucidated by spectral andchemical methods.
Studies were carried out on the transesterification of the Chinese Spicehush (Lindera communis) seed (LCS) oil with methanol for the production of biodiesel. The methyl esters of LCS oil were compared with soybean est...Studies were carried out on the transesterification of the Chinese Spicehush (Lindera communis) seed (LCS) oil with methanol for the production of biodiesel. The methyl esters of LCS oil were compared with soybean esters to determine biodiesel fuel performance and properties. The fatty acids content in the seed kernel oil (LKO) and coat oil (LCO) were quantified by gas chromatography and mass spectrometry method (GC-MS). LKO contains 95.1% saturated acids (capric, lauric, myristic and palmitic) and 2.3% unsaturated acids (oleic). LCO contains 24.6% saturated acids (palmitic and stearic) and 73.6% unsaturated acids (oleic, linoleic and palmitoleic). The kinematic viscosity, cold filter plugging point, cloud point, flash point and cetane index were determined. The methyl esters of LKO had a higher kinematic viscosity and a lower cold filter plugging point value, so it has better per- formance in cold weather. The biodiesel of LCS oil has fuel properties within the limits prescribed by American (ASTM D 6751-02) standards, except for a slightly lower flash point of LKO biodiesel than that prescribed by these standards (130°C). Thus, LKO and LCO biodiesel have great potential to be used on a large scale as fuel for diesel engines.展开更多
Two new compounds, linderafurane A and linchuniinone, were isolated from the root of Lindera chunii Merr.. The structures were elucidated by spectroscopic methods, and their activities against HIV-1 integrase were eva...Two new compounds, linderafurane A and linchuniinone, were isolated from the root of Lindera chunii Merr.. The structures were elucidated by spectroscopic methods, and their activities against HIV-1 integrase were evaluated.展开更多
Objective:To analyze the components and mechanisms of Wuyao(Linderae Radix)in treating diabetic nephropathy(DN)based on network pharmacology.Methods:Multiple online databases were used to search and screen out the act...Objective:To analyze the components and mechanisms of Wuyao(Linderae Radix)in treating diabetic nephropathy(DN)based on network pharmacology.Methods:Multiple online databases were used to search and screen out the active ingredients from Linderae Radix,the related targets of active components of Linderae Radix and the genes related to DN.Search the corresponding genes name of target through UniProt database.Cytoscape 3.2.1 was used to construct the corresponding target gene network of Linderae Radix compounds.Venn diagram was used to screen the intersection genes of the active components corresponding to the target and disease-related genes,and the intersection genes were constructed into the protein interaction relationship network.Finally,DAVID database was used to do GO function enrichment analysis and KEGG signaling pathway enrichment analysis for the intersection genes,and the results of GO and KEGG were visualized.Results:1.A total of 7 potential active ingredients and 100 target proteins were screened.2.There are a total of 34 intersection genes between the potential active ingredient target in Linderae Radix in DN.3.The top 10 of the interaction correlation between intersection proteins include:AR and NCOA2,NCOA2 and NR3C1,NCOA2 and PPARG,etc.4.There were 16 entries of molecular function,9 entries of cell component,47 entries of biological process and 18 entries of signaling pathway(P<0.05).Conclusion:DN was treated by Linderae Radix from multi-component,multi-target and multi-link synergies.展开更多
文摘A new sesquiterpene lactone, strychnilactone (1), together with five known sesquite- rpenoids, linderane (2), lindenenol (3), linderalactone (4), hydroxylindestenolide (5), pseudoneo- linderane (6) have been isolated from the extracts of Supercritical Fluid Extraction of Lindera strychnifolia. The structure of the new compound was elucidated by means of spectroscopic analysis. And the relative configuration of 1 was assigned on the basis of NOE analysis.
文摘One new A - type proanthocyanidin trimer, lindetarmin trimer, was isolated from thestems of Lindera aggregata (Sims) Kosterm.. Its structure was elucidated by spectral andchemical methods.
文摘Studies were carried out on the transesterification of the Chinese Spicehush (Lindera communis) seed (LCS) oil with methanol for the production of biodiesel. The methyl esters of LCS oil were compared with soybean esters to determine biodiesel fuel performance and properties. The fatty acids content in the seed kernel oil (LKO) and coat oil (LCO) were quantified by gas chromatography and mass spectrometry method (GC-MS). LKO contains 95.1% saturated acids (capric, lauric, myristic and palmitic) and 2.3% unsaturated acids (oleic). LCO contains 24.6% saturated acids (palmitic and stearic) and 73.6% unsaturated acids (oleic, linoleic and palmitoleic). The kinematic viscosity, cold filter plugging point, cloud point, flash point and cetane index were determined. The methyl esters of LKO had a higher kinematic viscosity and a lower cold filter plugging point value, so it has better per- formance in cold weather. The biodiesel of LCS oil has fuel properties within the limits prescribed by American (ASTM D 6751-02) standards, except for a slightly lower flash point of LKO biodiesel than that prescribed by these standards (130°C). Thus, LKO and LCO biodiesel have great potential to be used on a large scale as fuel for diesel engines.
文摘Two new compounds, linderafurane A and linchuniinone, were isolated from the root of Lindera chunii Merr.. The structures were elucidated by spectroscopic methods, and their activities against HIV-1 integrase were evaluated.
基金the Natural Science Foundation of Hainan Province(No.:2019CXTD407)the National Natural Science Foundation of China(No.:81860836).
文摘Objective:To analyze the components and mechanisms of Wuyao(Linderae Radix)in treating diabetic nephropathy(DN)based on network pharmacology.Methods:Multiple online databases were used to search and screen out the active ingredients from Linderae Radix,the related targets of active components of Linderae Radix and the genes related to DN.Search the corresponding genes name of target through UniProt database.Cytoscape 3.2.1 was used to construct the corresponding target gene network of Linderae Radix compounds.Venn diagram was used to screen the intersection genes of the active components corresponding to the target and disease-related genes,and the intersection genes were constructed into the protein interaction relationship network.Finally,DAVID database was used to do GO function enrichment analysis and KEGG signaling pathway enrichment analysis for the intersection genes,and the results of GO and KEGG were visualized.Results:1.A total of 7 potential active ingredients and 100 target proteins were screened.2.There are a total of 34 intersection genes between the potential active ingredient target in Linderae Radix in DN.3.The top 10 of the interaction correlation between intersection proteins include:AR and NCOA2,NCOA2 and NR3C1,NCOA2 and PPARG,etc.4.There were 16 entries of molecular function,9 entries of cell component,47 entries of biological process and 18 entries of signaling pathway(P<0.05).Conclusion:DN was treated by Linderae Radix from multi-component,multi-target and multi-link synergies.
基金Hunan Natural Science Foundation Project(2021JJ40551)Scientific Research Project of Hunan Administration of Traditional Chinese Medicine(D2022053)Scientific Research Project of Hunan Provincial Health Commission(B202313057639).
