The Experts below are selected from a list of 1908 Experts worldwide ranked by ideXlab platform
Ilia Brondz - One of the best experts on this subject based on the ideXlab platform.
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development of fatty acid analysis by high performance liquid chromatography gas chromatography and related techniques
Analytica Chimica Acta, 2002Co-Authors: Ilia BrondzAbstract:Abstract This review surveys current knowledge of fatty acids (FAs) analysis, with an emphasis on the analysis of fatty acids in microorganisms in relation to microbial taxonomy, Chemotaxonomy, and clinical practice. Aspects of fatty acid analysis in foods, drugs, and other products are also discussed, and a general perspective on the history of chromatography is presented.
Weitao Su - One of the best experts on this subject based on the ideXlab platform.
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embedding leaf tissue in graphene ink to improve signals in electrochemistry based Chemotaxonomy
Electrochemistry Communications, 2018Co-Authors: Li Fu, Yuhong Zheng, Pengchong Zhang, Haoyang Zhang, Luxi Zhang, Weitao SuAbstract:Abstract We propose a method for the electrochemical identification of plants by embedding leaf tissue into graphene deposited on a screen-printed electrode (SPE). The embedding process significantly enhanced the electrochemical signals, which made the SPE sufficiently sensitive to record information about electro-active compounds in plants. In this work, five Lycoris herbs have been used as examples to evaluate the feasibility of the proposed technique. Multidimensional pattern recognition was successfully established for plant identification. In addition, the recorded “electrochemical fingerprints” provided valuable taxonomic information, demonstrating the enormous potential of the technique for plant Chemotaxonomy.
Yong Peng - One of the best experts on this subject based on the ideXlab platform.
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phytochemical and biological research of fritillaria medicine resources
Chinese Journal of Natural Medicines, 2013Co-Authors: Dacheng Hao, Peigen Xiao, G U Xiaojie, Yong PengAbstract:The genus Fritillaria is a botanical source for various pharmaceutically active components, which have been commonly used in traditional Chinese medicine for thousands of years. Increasing interest in Fritillaria medicinal resources has led to additional discoveries of steroidal alkaloids, saponins, terpenoids, glycosides and many other compounds in various Fritillaria species, and to investigations on their Chemotaxonomy, molecular phylogeny and pharmacology. In continuation of studies on Fritillaria pharmacophylogeny, the phytochemistry, Chemotaxonomy, molecular biology and phylogeny of Fritillaria and their relevance to drug efficacy is reviewed. Literature searching is used to characterize the global scientific effort in the flexible technologies being applied. The interrelationship within Chinese Bei Mu species and between Chinese species, and species distributed outside of China, is clarified by the molecular phylogenetic inferences based on nuclear and chloroplast DNA sequences. The incongruence between Chemotaxonomy and molecular phylogeny is revealed and discussed. It is essential to study more species for both the sustainable utilization of Fritillaria medicinal resources and for finding novel compounds with potential clinical utility. Systems biology and omics technologies will play an increasingly important role in future pharmaceutical research involving the bioactive compounds of Fritillaria.
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chemical and biological research of clematis medicinal resources
Chinese Science Bulletin, 2013Co-Authors: Dacheng Hao, Peigen Xiao, Yong PengAbstract:Clematis is a botanical source for various pharmaceutically active components, which has long been used in conventional medicine since the beginning of Chinese civilization. Increasing interest in Clematis medicinal resources has led to additional discoveries of triterpenoid saponins, flavonoids, coumarins, alkaloids and many other compounds in various Clematis species, and to investigations on their Chemotaxonomy, molecular phylogeny and pharmacology. In continuation with our studies on Clematis chemistry and biology, we review the chemistry, Chemotaxonomy, molecular biology and phylogeny of Clematis and their relevance to drug efficacy and drug development. Various databases and technology have been used in literature search in order to characterize the global scientific effort. It is essential to study more species for both the sustainable utilization of Clematis medicinal resources and finding novel compounds with potential clinical utility. Systems biology and omics technologies will play an increasingly important role in future medicinal research involving bioactive compounds of Clematis.
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research progress in the phytochemistry and biology of ilex pharmaceutical resources
Acta Pharmaceutica Sinica B, 2013Co-Authors: Dacheng Hao, Peigen Xiao, Zhanguo Liang, Yong PengAbstract:Abstract Ilex is a botanical source for various health-promoting and pharmaceutically active compounds that have been used in traditional Chinese medicine and food for thousands of years. Increasing interest in Ilex pharmaceutical and food resources has led to additional discoveries of terpenoids, saponins, polyphenols (especially flavonoids), glycosides, and many other compounds in various Ilex species, and to investigation of their Chemotaxonomy, molecular phylogeny and pharmacology. In continuation of our studies on Ilex pharmacology and phylogeny, we review the phytochemistry, Chemotaxonomy, molecular biology and phylogeny of Ilex species and their relevance to health-promotion and therapeutic efficacy. The similarity and dissimilarity between Ilex paraguariensis , the source plant of mate tea, and the source plants of large-leaved Kudingcha (e.g., Ilex kudingcha and Ilex latifolia ) are discussed. It is essential to utilize emerging technologies in non- Camellia tea studies to promote the sustainable utilization of Ilex resources and the identification and development of novel compounds with potential health and clinical utility. Systems biology and “-omics” technologies will play an increasingly important role in pharmaceutical and food research on the bioactive compounds of Ilex species.
Hiroshi Sano - One of the best experts on this subject based on the ideXlab platform.
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identification of isoprenoid quinones by frit fab liquid chromatography mass spectrometry for the Chemotaxonomy of microorganisms
Journal of Microbiological Methods, 1997Co-Authors: Miyuki Nishijima, Miho Arakisakai, Hiroshi SanoAbstract:Abstract An easy and highly sensitive analytical method for the identification of microbial isoprenoid quinones using Frit-FAB liquid chromatography–mass spectrometry was developed. The composition of ubiquinone, menaquinone, rhodoquinone and their analogs was determined directly using combined information on the high-performance liquid chromatography retention time, a UV spectrum and a mass spectrum, without any standard samples. This method can be widely applied for the Chemotaxonomy of microorganisms such as bacteria, actinomycetes, fungi and yeasts.
Luxi Zhang - One of the best experts on this subject based on the ideXlab platform.
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embedding leaf tissue in graphene ink to improve signals in electrochemistry based Chemotaxonomy
Electrochemistry Communications, 2018Co-Authors: Li Fu, Yuhong Zheng, Pengchong Zhang, Haoyang Zhang, Luxi Zhang, Weitao SuAbstract:Abstract We propose a method for the electrochemical identification of plants by embedding leaf tissue into graphene deposited on a screen-printed electrode (SPE). The embedding process significantly enhanced the electrochemical signals, which made the SPE sufficiently sensitive to record information about electro-active compounds in plants. In this work, five Lycoris herbs have been used as examples to evaluate the feasibility of the proposed technique. Multidimensional pattern recognition was successfully established for plant identification. In addition, the recorded “electrochemical fingerprints” provided valuable taxonomic information, demonstrating the enormous potential of the technique for plant Chemotaxonomy.
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Embedding leaf tissue in graphene ink to improve signals in electrochemistry-based Chemotaxonomy
Elsevier, 2018Co-Authors: Yuhong Zheng, Pengchong Zhang, Haoyang Zhang, Jiangwei Zhu, Luxi ZhangAbstract:We propose a method for the electrochemical identification of plants by embedding leaf tissue into graphene deposited on a screen-printed electrode (SPE). The embedding process significantly enhanced the electrochemical signals, which made the SPE sufficiently sensitive to record information about electro-active compounds in plants. In this work, five Lycoris herbs have been used as examples to evaluate the feasibility of the proposed technique. Multidimensional pattern recognition was successfully established for plant identification. In addition, the recorded “electrochemical fingerprints” provided valuable taxonomic information, demonstrating the enormous potential of the technique for plant Chemotaxonomy. Keywords: Chemotaxonomy, Plant identification, Graphene ink, Screen printed electrode, Multivariate chemometric analysi