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Vol. 23 No. 10 (2011): Vol 23 Issue 10

Characterization of Lignin Isolated from Iranian Carpinus betulus Wood

Hossein Afshari
Department of Horticulture, Damghan branch, Islamic Azad University, Damghan, Iran
Ali Sheikh Bostanabad
Department of Chemistry, Ghaemshahr branch, Islamic Azad University, Ghaemshahr, Iran
Hassan Sadeghifar
Department of Chemistry, Ghaemshahr branch, Islamic Azad University, Ghaemshahr, Iran
Ahmad Ali Khalilzadeh
Department of Chemistry, Ghaemshahr branch, Islamic Azad University, Ghaemshahr, Iran
Abdol Ghaffar Ebadi
Young Researchers Club, Sari branch, Islamic Azad University, Sari, Iran

Corresponding Author(s) : Hossein Afshari

h_afshari@ymail.com

Asian Journal of Chemistry, Vol. 23 No. 10 (2011): Vol 23 Issue 10

Abstract

Lignin isolated from Carpinus betulus by acidolytic dioxane method were characterized using alkaline nitrobenzene oxidation, elemental analysis, molecular weight analysis, GC-MS or gas chromatography-mass spectrometry, FT-IR and 1H NMR spectroscopy. The results showed that Mw (weight average molecular weight) and Mn (number average molecular weight) of the lignin is 8377.3 g/mol and 5152.8 g/mol, respectively. The ratio of S unit to G unit is 3.88 and C9 formula of Carpinus betulus lignin is C9   Hal2.296Hph 1.751O2.104(OH)ph 0.477(OH)al 1.409(OCH3)1.76.

Keywords

Lignin Iranian Carpinus betulus Wood
(1)
Afshari, H.; Sheikh Bostanabad, A.; Sadeghifar, H.; Ali Khalilzadeh, A.; Ghaffar Ebadi, A. Characterization of Lignin Isolated from Iranian Carpinus Betulus Wood. ajc 2011, 23, 4711-4712.
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