Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Feng-Qing Yang"'
Publikováno v:
Molecules, Vol 15, Iss 6, Pp 4227-4241 (2010)
Free and polymeric carbohydrates in Cordyceps, a valued edible mushroom and well-known traditional Chinese medicine, were determined using stepwise pressurized liquid extraction (PLE) extraction and GC-MS. Based on the optimized PLE conditions, acid
Externí odkaz:
https://doaj.org/article/a7835a90c45f4590b5a0d851ff5be358
Autor:
Wen-Jia Li, Dong-Dong Zhou, Chun-Hong Li, Hua Chen, Feng-Qing Yang, Hao Zhang, Zheng-Ming Qian, Qian Zhang
Publikováno v:
Journal of Chromatography A. 1591:24-32
In this study, a titanium ion (Ti4+) functionalized polydopamine coated ferroferric oxide (Fe3O4@PDA@Ti4+) core-shell magnetic particle was prepared for the selective extraction of nucleotides. Firstly, different metal ions including Ti4+, Zr4+, Fe3+
Autor:
Wen-Jia Li, Zhining Xia, Yuanjia Hu, Qian Zhang, Chun-Hong Li, Hua-Li Zuo, Feng-Qin Wang, Feng-Qing Yang, Zheng-Ming Qian
Publikováno v:
Pharmacognosy Research
Background: As one of the bioactive components in Cordyceps sinensis (CS), proteins were rarely used as index components to study the correlation between the protein components and producing areas of natural CS. Objective: Protein components of 26 na
Publikováno v:
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica. 44(10)
In this study,the protein in different Cordyceps samples,which include fresh sample( S1),22 ℃ drying sample( S2),37 ℃ drying sample( S3) and 60 ℃ drying sample( S4),were analyzed by sodium dodecylsupinate-polyacrylamide gel electrophoresis( SDS
Publikováno v:
Mikrochimica acta. 186(3)
A magnetite@graphene oxide nanocomposite was first coated with polyethylenimine and then modified with phytic acid and titanium(IV) ions. The high loading with Ti(IV) and the good hydrophilicity of PEI and PA result in a material that can be applied
Publikováno v:
Journal of Chromatography A. 1217:5501-5510
An ion-pairing reversed-phase liquid chromatography-mass spectrometry (IP-RP-LC-MS) was developed for the determination of nucleotides, nucleosides and their transformation products in Cordyceps. Perfluorinated carboxylic acid, namely pentadecafluoro
Publikováno v:
Molecules
Molecules, Vol 15, Iss 6, Pp 4227-4241 (2010)
Molecules; Volume 15; Issue 6; Pages: 4227-4241
Molecules, Vol 15, Iss 6, Pp 4227-4241 (2010)
Molecules; Volume 15; Issue 6; Pages: 4227-4241
Free and polymeric carbohydrates in Cordyceps, a valued edible mushroom and well-known traditional Chinese medicine, were determined using stepwise pressurized liquid extraction (PLE) extraction and GC-MS. Based on the optimized PLE conditions, acid
Publikováno v:
Journal of Separation Science. 32:4069-4076
A HPLC coupled with diode array detection (DAD) and evaporative light scattering detection (ELSD) method for qualitative and quantitative analysis of eight nucleosides and nucleobases, three carbohydrates and myriocin in Cordyceps was developed. A Pr
Publikováno v:
Journal of Pharmaceutical and Biomedical Analysis. 50:522-526
Random amplified polymorphic DNA (RAPD) and high performance liquid chromatography (HPLC) were applied to investigate genetic and chemical variations of 2 natural C. sinensis, 16 fungal strains isolated from C. sinensis, and 2 fungal strains of C. mi
Autor:
Shengke Li, Feng-Qing Yang
Publikováno v:
Journal of Pharmaceutical and Biomedical Analysis. 48:231-235
Sample preparation is the first and very important step, which can greatly influence the repeatability and accuracy of the analysis. To date, several sample preparation methods with different solvents have been used for quantitative determination of