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Information Journal Paper

Title

DETERMINATION OF UNCONDENSED STRUCTURES OF POPOLUS DELTOIDES LIGNIN USING DFRC DEGRADATION METHOD

Pages

  327-338

Abstract

 Chemical structures of different isolated lignins were elucidated to determine the uncondensed structures through DFRC degradation method. MILLED WOOD LIGNIN and the so called ENZYMATIC LIGNIN were isolated and degraded via a modified chemical oxidative-reductive DFRC procedure. In the modified method, the degraded products were functionalized with METHYLATION, acetylation and propylation modification processes to exclude the uncondensed phenolic  b-O-4, uncondensed  a-O-4 and uncondensed etherified b-O-4 groups. The subsequent characterization of the products by gel permeation chromatography and gas chromatography showed that mnzymatic lignin had more uncondensed structures compared with milled wood preparation which could be a consequence of less degradation during the isolation process. The data were further evaluated by quantitative 13C NMR and the calculation of degree of condensity.

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    • Cite

    APA: Copy

    ABDULKHANI, A., HAMZEH, Y., HEDJAZI, S., & KARIMI, A.. (2012). DETERMINATION OF UNCONDENSED STRUCTURES OF POPOLUS DELTOIDES LIGNIN USING DFRC DEGRADATION METHOD. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), 65(3), 327-338. SID. https://sid.ir/paper/162861/en

    Vancouver: Copy

    ABDULKHANI A., HAMZEH Y., HEDJAZI S., KARIMI A.. DETERMINATION OF UNCONDENSED STRUCTURES OF POPOLUS DELTOIDES LIGNIN USING DFRC DEGRADATION METHOD. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2012;65(3):327-338. Available from: https://sid.ir/paper/162861/en

    IEEE: Copy

    A. ABDULKHANI, Y. HAMZEH, S. HEDJAZI, and A. KARIMI, “DETERMINATION OF UNCONDENSED STRUCTURES OF POPOLUS DELTOIDES LIGNIN USING DFRC DEGRADATION METHOD,” JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 65, no. 3, pp. 327–338, 2012, [Online]. Available: https://sid.ir/paper/162861/en

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