Malaysian
Journal of Analytical Sciences Vol 20 No 2 (2016): 309 - 317
DEVELOPMENT OF CELLULOSE NANOFIBRE (CNF) DERIVED FROM
KENAF BAST FIBRE AND IT’S POTENTIAL IN ENZYME IMMOBILIZATION SUPPORT
(Penghasilan Nano-Gentian Selulosa (CNF) diperolehi
daripada Gentian Kulit Kenaf dan Potensinya sebagai Penyokong Pemegunan Enzim)
Safwan Sulaiman1, Mohd Noriznan Mokhtar1*, Mohd
Nazli Naim1, Azhari Samsu Baharuddin1,
Mohamad Amran Mohd Salleh2,
Alawi Sulaiman3
1Department of Process and Food Engineering
2Department of Chemical and Environmental Engineering
Faculty of Engineering,
Universiti Putra Malaysia, 43400 Serdang, Selangor,
Malaysia
3Faculty of Plantation and Agrotechnology,
Universiti Teknologi MARA, 40450 Shah Alam, Selangor,
Malaysia
*Corresponding author: noriznan@upm.edu.my
Received:
24 February 2015; Accepted: 27 October 2015
Abstract
This research mainly focuses on developing a natural cellulose nanofibre
(CNF) from kenaf bast fibre and its potential for enzyme immobilization
support. CNF was isolated by using a combination between chemical and
mechanical treatments such as alkaline process and high-intensity
ultrasonication process to increase the efficiency of hemicellulose and lignin
removal, and to reduce its size into nano-order. The morphological study was
carried out by using scanning electron microscope (SEM), indicating most of CNF
diameter in range of 50-90 nm was obtained. The result of chemical analysis
shows that cellulose content of raw bast fibre, bleached pulp fibre and CNF are
66.4 %, 83.7 % and 90.0 %, respectively. By decreasing the size of cellulose
fibre, it increases the number of (O–H) group on the surface that plays as
important role in enzyme immobilization. Covalent immobilization of
cyclodextrin glucanotransferase (CGTase) onto CNF support resulted in about
95.0 % of protein loading with 69.48 % of enzyme activity, indicating high
immobilization yield of enzyme. The enzymatic reaction of immobilized CGTase
was able to produce more than 40 % yield of α-CD. Reusability profile of
immobilized CGTase resulted in more than 60 % of retained activity up to 7
cycles. Therefore, the CNF is highly potential to be applied as enzyme
immobilization support.
Keywords: cellulose nanofibre (CNF), kenaf, enzyme
immobilization; cyclodextrin glucanotransferase (CGTase), chemical and mechanical treatments
Abstrak
Kajian ini memberi tumpuan terutamanya kepada penghasilan nano-gentian
selulosa (CNF) semulajadi daripada gentian lapisan kulit kenaf dan potensinya
sebagai penyokong pemegunan enzim.
CNF dihasilkan dengan menggunakan gabungan antara rawatan kimia dan mekanikal
seperti proses alkali dan proses ultrasonikasi berintensiti tinggi untuk
meningkatkan kadar kecekapan penyingkiran hemiselulosa dan lignin, dan
pengurangan saiz kepada nano. Kajian morfologi menggunakan mikroskop imbasan
elektron (SEM), menunjukkan sebahagian besar daripada saiz diameter CNF
diperolehi dalam julat 50-90 nm. Hasil kajian analisis kimia menunjukkan bahawa
kandungan selulosa daripada gentian mentah, gentian pulpa dan CNF
masing-masingnya adalah 66.4 %, 83.7 % dan 90.0 %. Dengan mengurangkan saiz
diameter gentian selulosa, ia meningkatkan bilangan kumpulan (O-H) di permukaan
sokongan yang mana memainkan peranan yang penting dalam pemegunan enzim.
Pemegunan Siklodektrin Glukanotransferase (CGTase) secara kovalen pada CNF
menunjukkan kira-kira 95.0 % muatan protein dengan 69.48 % aktiviti enzim,
menunjukkan pemegunan enzim yang tinggi terhasil. Tindak balas berenzim CGTase
terpegun juga mampu menghasilkan lebih daripada 40 % pengeluaran α-CD. Kitaran kebolehulangan enzim terpegun menunjukkan lebih
daripada 60 % daripada aktivitinya dapat dikekalkan selama 7 kitaran. Oleh itu,
CNF sangat berpotensi untuk digunakan sebagai penyokong pemegunan enzim.
Kata kunci: gentian-nano
selulosa (CNF), kenaf, pemegunan enzim, siklodektrin glukanotransferase
(CGTase), rawatan kimia dan mekanikal
References
1. Faruk, O., Bledzki, A.
K., Fink, H.-P. and Sain, M. (2012). Biocomposites reinforced with natural
fibers: 2000–2010. Progess in Polymer Science, 37(11): 1552 –1596.
2. Li, Y., Mai, Y.-W. and Ye,
L. (2000). Sisal fibre and its composites: a review of recent developments. Composite
Science and Technology, 60(11):
2037 – 2055.
3. Gardner, D. J., Oporto, G.
S., Mills, R. and Samir, M. A. S. A. (2008). Adhesion and surface issues in
cellulose and nanocellulose. Journal of Adhesion Science and
Technology, 22(5-6): 545 – 567.
4. Brinchi, L., Cotana, F.,
Fortunati, E. and Kenny, J. M. (2013). Production of nanocrystalline cellulose
from lignocellulosic biomass: Technology and applications. Carbohydrate
Polymer, 94(1): 154 – 169.
5. Zhang, S. (2003).
Fabrication of novel biomaterials through molecular self-assembly. Nature Biotechnology,
21(10): 1171 – 1178.
6. Kim, J., Grate, J. W. and
Wang, P. (2006). Nanostructures for enzyme stabilization. Chemical Engineering
Science, 61(3): 1017 – 1026.
7. Kim, J., Grate, J. W. and
Wang, P. (2008). Nanobiocatalysis and its potential applications. Trends
Biotechnology, 26(11): 639 –
646.
8. Cao, L. (2006). Covalent
Enzyme Immobilization. In Carrier-bound Immobilized Enzymes. Wiley-VCH
Verlag GmbH & Co. KGaA (pp. 169–316)..
9. Karimi, S., Tahir, P. M.,
Karimi, A., Dufresne, A. and Abdulkhani, A. (2014). Kenaf bast cellulosic
fibers hierarchy: A comprehensive approach from micro to nano. Carbohydrate
Polymer, 101: 878 –885.
10. Jonoobi, M., Niska, K. O.,
Harun, J., Misra, M., Shakeri, A., Misra, M. and Oksman, K. (2009). Chemical
composition, crystallinity, and thermal degradation of bleached and unbleached
kenaf bast (Hibiscus cannabinus) pulp and nanofibers. BioResources, 4(2): 626 – 639.
11. Chen, W., Yu, H., Liu, Y.,
Chen, P., Zhang, M. and Hai, Y. (2011). Individualization of cellulose
nanofibers from wood using high-intensity ultrasonication combined with
chemical pretreatments. Carbohydrate Polymer, 83(4): 1804 – 1811.
12. Van Soest, P. J.,
Robertson, J. B. and Lewis, B. A. (1991). Methods for dietary fiber, neutral
detergent fiber, and nonstarch polysaccharides in relation to animal nutrition.
Journal of Dairy Science, 74(10):
3583 – 3597.
13. Bradford, M. M. (1976). A
rapid and sensitive method for the quantitation of microgram quantities of
protein utilizing the principle of protein-dye binding. Analytical
Biochemistry, 72(1-2): 248 –
254.
14. Abdel-Naby, M. A., Ismail,
A.-M. S., Abdel-Fattah, A. M., and Abdel-Fattah, A. F. (1999). Preparation and
some properties of immobilized Penicillium funiculosum 258 dextranase. Process
Biochemistry, 34(4): 391 – 398.
15. Chen, W., Yu, H. and Liu,
Y. (2011). Preparation of millimeter-long cellulose I nanofibers with diameters
of 30–80nm from bamboo fibers. Carbohydrate Polymer, 86(2): 453 – 461.
16. Abe, K. and Yano, H.
(2009). Comparison of the characteristics of cellulose microfibril aggregates
of wood, rice straw and potato tuber. Cellulose, 16(6): 1017 – 1023.
17. Joonobi, M., Harun, J.,
Tahir, P. M., Zaini, L. H., SaifulAzry, S. and Makinejad, M. D. (2010).
Characteristics of nanofibres extracted from kenaf core. BioResources, 5(4): 2556 – 2566.
18. Sulaiman, S., Mokhtar, M.
N., Naim, M. N., Baharuddin, A. S. and Sulaiman, A. (2014). A Review: potential
usage of cellulose nanofibers (CNF) for enzyme immobilization via covalent
interactions. Applied Biochemistry and Biotechnology, 175(4): 1817 – 1842.
19. Redeker, E. S., Ta, D. T.,
Cortens, D., Billen, B., Guedens, W. and Adriaensens, P. (2013). Protein engineering
for directed immobilization. Bioconjugate Chemistry, 24(11): 1761 – 1777.
20. Chen, W., Yu, H., Liu, Y.,
Hai, Y., Zhang, M. and Chen, P. (2011). Isolation and characterization of
cellulose nanofibers from four plant cellulose fibers using a
chemical-ultrasonic process. Cellulose, 18(2): 433 – 442.
21. Karim, M. R. and Hashinaga,
F. (2002). Preparation and properties of immobilized pummelo limonoid
glucosyltransferase. Process Biochemistry, 38(5): 809 – 814.
22. Martı́n, M. T., Plou, F.
J., Alcalde, M. and Ballesteros, A. (2003). Immobilization on Eupergit C of
cyclodextrin glucosyltransferase (CGTase) and properties of the immobilized
biocatalyst. Journal of Molecular Catalysis B: Enzymatic, 21(4–6): 299 – 308.
23. Ivanova, V. (2010).
Immobilization of cyclodextrin glucanotransferase from Paenibacillus macerans
ATCC 8244 on magnetic carriers and production of cyclodextrins. Biotechnology
and Biotechnical Equipment, 24:
516 – 528.
24. Shahrazi, S., Saallah, S.,
Mokhtar, M. N., Baharuddin, A. S. and Yunos, K. F. M. (2013). Dynamic
mathematical modelling of reaction kinetics for cyclodextrins production from different
starch sources using Bacillus macerans cyclodextrin glucanotransferase. American
Journal of Biochemistry and Biotechnology, 9(2): 195 – 205.