Sheng-Jun Zhang

Anshun University, P’u-ting, Guizhou Sheng, China

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Publications (2)0.59 Total impact

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    ABSTRACT: Tri-step identification of Fourier transform infrared spectroscopy (FTIR) integrated with second derivative spectroscopy and two dimensional correlation infrared spectroscopy (2D-IR) were applied to analyze and evaluate the alcoholic extracts and corresponding residues of cistanche deserticola from the surface to what lies behind. It was found that active compounds including phenylethanoid glycosides were enriched effectively after alcoholic extraction and the extract by using 70% of alcohol had the highest concentration compared to the others. The technique of the tri-step identification holistically disclosed the profile of active compounds in cistanche deserticola extracted by a series of concentrations of ethanol and validated the rationality of the traditional alcoholic extraction method. It not only could be used in monitoring the process of the alcoholic extraction and the compositions of the extracts and residues, discriminating micro-differences among them, but also could provide a macroscopic guidance for medicinal and pharmacological studies.
    Guang pu xue yu guang pu fen xi = Guang pu 11/2011; 31(11):2923-7. · 0.29 Impact Factor
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    ABSTRACT: Fourier transform infrared (FTIR) spectroscopy and second derivative IR spectroscopy were applied to analyze and evaluate different parts of Scorpio. The second derivative IR spectra show clear differences while the origin spectra are quite similar. It was found that proteins are the dominant components in each part and the tail has distinct proteins compared to the others; fats are mainly stored in the trunk; sulfates are ubiquitous in all parts. Interestingly, the back part of the trunk of degenerative Scorpio contains some purine. It was demonstrated that FTIR spectroscopy integrated with second derivative IR spectroscopy not only can offer a fast, comprehensive and objective methodology for analyzing and evaluating the micro-differences among the various parts of same medicinal materials, but also can provide a rational guidance for medicinal and pharmacological studies.
    Guang pu xue yu guang pu fen xi = Guang pu 10/2011; 31(10):2711-4. · 0.29 Impact Factor