常压醋酸法分离毛竹木质素

doi:10.11707/j.1001-7488.20111024

Scientia Silvae Sinicae ›› 2011, Vol. 47 ›› Issue (10): 153-159.doi: 10.11707/j.1001-7488.20111024

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Extraction of Lignin from Bamboo(Phyllostachys edulis)by Atmospheric Acetic Acid Process

Zhou Houde^1,2, Liu Yuhuan^1,2,3, Ruan Rongsheng^1,2, Peng Hong², Zhang Jinsheng^1,2,3

1. Engineering Research Center of Biomass Conversion, Ministry of Education Nanchang 330047;2. State Key Laboratory of Food Science and Technology, Nanchang University Nanchang 330047;3. Engineering and Technology Research Center for Biomass Conversion, Jiangxi Province Nanchang 330047

Received:2009-11-02 Revised:2010-01-04 Online:2011-10-25 Published:2011-10-25

Abstract

Abstract:

In the goal of increasing the efficiency extraction of lignin from bamboo by atmospheric acetic acid process and of understanding the chemical structure changing during the process, series of single factor experiments had been done in present investigation. This result shows the optimum extraction conditions is: 90% aqueous AcOH, 3%H₂SO₄, ratio of liquor to bamboo fillings 12 ∶1, pulping temperature 106 ℃, and pulping time 2.5 h. The UV, FTIR, and NMR spectra results shows that the functional groups and chemical bond in MWL and acetic acid lignin are quite similar, excepting acetic acid lignin has more phenolic hydroxyl groups, so its chemical activity is more stonger, which is an advantage for further utilization.

Key words: bamboo, lignin, atmospheric acetic acid, process parameters, chemical structures

CLC Number:

TQ352

Zhou Houde;Liu Yuhuan;;Ruan Rongsheng;Peng Hong;Zhang Jinsheng;. Extraction of Lignin from Bamboo(Phyllostachys edulis)by Atmospheric Acetic Acid Process[J]. Scientia Silvae Sinicae, 2011, 47(10): 153-159.

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Extraction of Lignin from Bamboo(Phyllostachys edulis)by Atmospheric Acetic Acid Process

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