Boron carbonitride (BCN) nanofibers with rapid and efficient adsorption performance were prepared by electrospinning technology. TEM, XRD, XPS and N adsorption-desorption isotherms were performed to study the microstructure of the nanofibers. The results showed that the BCN fibers synthesized at 1000 °C (BCN-1000) have good crystallinity and high specific surface areas (403 m g).
View Article and Find Full Text PDFObjective: To determine the content of huperzine A in the root, stem and leaf of Huperzia serrata from western Hunan, and analyze the relationship between the distribution of huperzine A and the expression of lysine decarboxylase gene in different parts of huperzia serrata.
Methods: The content of huperzine A in the root, stem and leaf of Huperzia serrata was determinated by HPLC, of which the chromatographic column was Diamonsil C18 (250 mm x 4.6 mm,5 microm), mobile phase was methanol-0.
Proanthocyanidins (PAs) are fundamental nutritional metabolites in different types of grape products consumed by human beings. Although the biosynthesis of PAs in berry of Vitis vinifera has gained intensive investigations, the understanding of PAs in other Vitis species is limited. In this study, we report PA formation and characterization of gene expression involved in PA biosynthesis in leaves of V.
View Article and Find Full Text PDFProanthocyanidins (PAs) are oligomers or polymers of plant flavan-3-ols and are important to plant adaptation in extreme environmental conditions. The characterization of anthocyanidin reductase (ANR) and leucoanthocyanidin reductase (LAR) has demonstrated the different biogenesis of four stereo-configurations of flavan-3-ols. It is important to understand whether ANR and the ANR pathway widely occur in the plant kingdom.
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