Infrared and Raman spectroscopic methods for characterization of Taxus baccata L.--Improved taxane isolation by accelerated quality control and process surveillance.
Infrared and Raman spectroscopic methods for characterization of Taxus baccata L.--Improved taxane isolation by accelerated quality control and process surveillance.
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用于表征红豆杉的红外和拉曼光谱方法——通过加速质量控制和过程监控改进紫杉烷分离
DOI:
10.1016/j.talanta.2015.04.090
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发表时间:
--
期刊:
影响因子:
6.1
通讯作者:
Schulz H.
中科院分区:
文献类型:
--
作者:
Gudi G;Krähmer A;Koudous J;Strube J;Schulz H.
Different yew species contain poisonous taxane alkaloids which serve as resources for semi-synthesis of anticancer drugs. The highly variable amounts of taxanes demand new methods for fast characterization of the raw plant material and the isolation of the target structures during phyto extraction. For that purpose, applicability of different vibrational spectroscopy methods in goods receipt of raw plant material and in process control was investigated and demonstrated in online tracking isolation and purification of the target taxane 10-deacetylbaccatin III (10-DAB) during solvent extraction. Applying near (NIRS) and mid infrared spectroscopy (IRS) the amount of botanical impurities in mixed samples of two different yew species (R2 ¼0. 993), the leave-to-wood ratio for Taxus baccata material (R2 ¼0. 94) and moisture in dried yew needles (R2 ¼0. 997) can be quantified. By partial least square analysis (PCA) needles of different Coniferales species were successfully discriminated by Attenuated Total Reflectance-Fourier-Transform Infrared Spectroscopy (ATR-FT-IR). The analytical potential of ATR-FT-IR and Fourier Transform-Raman Spectroscopy (FT-RS) in process control of extraction and purification of taxanes is demonstrated for determination of the water content in methanolic yew extracts (R2 ¼0. 999) and for quantification of 10-DAB (R2 ¼0. 98) on a highly sophisticated level. The decrease of 10-DAB in the plant tissue during extraction was successfully visualized by FT-IR imaging of thin cross sections providing new perspectives for process control and design.
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期刊:
影响因子:
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