Author, Subjects, Keywords

Cited Author

 
 
   » By Author or Editor
 » Browse Author by Alphabet
 » By Journal
 » By Subjects
 » By Affiliations
 » By Type
 » By Year
 » By Latest Additions
 
 
   » By Author
 » Top 20 Authors
 » Top 20 Article
 » Top 20 Journal Cited
 » Top 20 Cited
 » Top 20 Author Cited
 » Usage Since Sept 2007


 
 
 

Login | Create Account

Comparison Studies on Soda Lignin and Soda anthraquinone Lignin

Mohamed Ibrahim, M.N. and Mohamad Yusof, N.N. and Hashim, A. (2007) Comparison Studies on Soda Lignin and Soda anthraquinone Lignin. Malaysian Journal of Analytical Sciences, 11 (1). pp. 206-212. ISSN 13942506

Full text not available from this repository.

Official URL: http://pkukmweb.ukm.my/~mjas/v11_n1/32_MJAS%20544A4%20final_20_.pdf

Affiliations

Universiti Sains Malaysia, School of Chemical Sciences

Abstract

Soda lignin and soda anthraquinone lignin were compared in this study. The physico-chemical properties and structural features of the isolated lignin were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Ultraviolet (UV), ash test, Carbon-Hydrogen-Nitrogen (CHN) analyzer, Nuclear Magnetic Resonance (13C-NMR) and High Performance Liquid Chromatography (HPLC). Nitrobenzene oxidation was performed on these two types of lignin especially for the HPLC analysis. Based on the CHN, 13C-NMR and UV results there were no significant differences between soda lignin and soda anthraquinone lignin. The FTIR results also showed that there were no significant differences in terms of functional groups that exist in both lignin.

Kajian ini dijalankan secara makmal untuk membuat perbandingan sifat-sifat secara kimia dalam lignin soda yang diperoleh secara makmal dan lignin soda antrakuinon yang diperoleh secara industri. Sifat kimia fizik dan struktur yang terdapat dalam lignin telah dikaji menggunakan spektroskopi Infra merah (FT-IR), Spektroskopi Ultra lembayung (UV), ujian abu, Penganalisa Karbon-hidrogen-Nitrogen (CHN), Spektroskopi Resonans Magnet Nukleus (13C-NMR) dan Kromatografi Cecair Prestasi Tinggi (HPLC). Pengoksidaan nitrobenzena telah digunakan untuk memecahkan komponen dalam lignin sebelum dianalisa melalui kaedah HPLC. Keputusan daripada CHN, 13C-NMR dan UV menunjukkan tidak ada perbezaan ketara dalam pencirian sifat antara lignin makmal dan lignin industri. FT-IR pula menunjukkan tiada perbezaan struktur utama dalam kedua-dua jenis lignin ini.

Item Type:Journal
Additional Information:Funded by the Universiti Sains Malaysia and the Malaysian Ministry of Science, Technology and Innovation and Sabutek (M) Sdn. Bhd. for supplying the EFB long fiber.
Keywords:Oil palm empty fruit bunches fibers, black liquor, soda lignin, soda anthraquinone lignin
Subjects:Q Science
ID Code:1047

1. Malaysian Palm Oil Board (MPOB); http://www.porim.gov.my (accessed on 24/04/2005).

2. Akamatsu, S., Y. Kobayashi, H. Kamishima, K.B. Hassan, M.N.B. Mohd Yusoff, M.B. Husin and H.A.H. Hassan,

1987. Industrial Utilization of Oil Palm By-Products: Thermomechanical Pulping of Empty Fruit Bunches. Cellulose

Chemistry and Technology., 21: 191-197.

3. Venica, A., C.L. Chen and J.S. Gratzl, 1989. Delignification of Hardwoods During Alkaline Pulping: Reactions, Mechanisms and Characteristics of Dissolved Lignins During Soda- Aqueous Pulping of Poplar. Tappi Proceeding.,263.

4. Suckling, I.D., 1989. The role of anthraquinone in sulphite-anthraquinone pulping, TAPPI Wood and Pulping Chemistry Symposium. Tappi proceeding., 503.

5. Lin, S.Y. and C.W. Dence., 1992. Method in Lignin Chemistry. Springer Series in Wood Science. Springer-Verlag Berlin Heidelberg, pp: 65-67, 71-73 and 75-80.

6. Sun, R.C., J. Tomkinson and G.L. Jones, 2000. Fractional Characterization of Ash-AQ Lignin By Successive Extraction With Organic Solvents From Oil Palm EFB Fibers. Polymer Degradation and Stability., 68: 111-119.

7. Scalbert, A., B. Monties, E. Guittet and J.Y. Lallemand, 1986. Comparison of wheat straw lignin preparations. I. Chemical and Spectroscopic Characterization. Holzforschung., 40: 119-127.

8. Sun, R.C., J. Tomkinson and B. James, 1999. Effect of Precipitation pH on the Physico-Chemical Properties of the Lignin Isolated from the Black Liquor of Oil Palm Empty Fruit Bunch Fibre Pulping. Polymer Degradation and Stability., 63: 195-200.

Repository Staff Only: item control page
 
 
 
 
 
   
© Copyright 2007 MyAIS Faculty of Computer Science and Information Technology, University of Malaya – All Rights Reserved. Malaysian Abstracting and Indexing System is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.