Effect of treatment in supercritical CO2 on the composition and structure of tealeaf and cellulose
Tóm tắt
The influence of the pretreatment procedures with supercritical CO2 (SC-CO2) on the elemental composition of tealeaf is studied. Fourier-transform infrared absorption spectroscopy is used to examine the effect of SC-CO2 on the structure of Chinese green tea and cellulose.
Tài liệu tham khảo
Truong Nam Hung, A. K. Fakhreev, F. M. Gumerov, F. R. Gabitov, R. A. Usmanov, D. G. Amirkhanov, and R. S. Yarullin, SKF-TP 3(2), 7 (2008).
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R. G. Zhbankov, Infrared Spectra of Cellulose and its Derivatives (Nauka Tekhnika, Minsk, 1964) [in Russian].
GOST 30178-96, “Raw Materials and Food-Stuffs. Atomic Absorption Method for the Determination of Toxic Elements.”
GOST 30692-2000, “Feed, Feed Milling Raw Materials. Atomic Absorption Method for the Determination of Content of Copper, Lead, Zinc, and Cadmium.”
GOST 26929-94, “Raw Materials and Food-Stuffs. Preparation of Samples. Mineralization for the Determination of Toxic Element Content.”
T. R. Bilalov, I. R. Sharafutdinov, F. R. Gabitov, and F. M. Gumerov, in Proceedings of the 4th International Conference on Supercritical Fluids: Fundamentals, Technologies, Innovations, Kazan, 2007, p. 103.
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