Sains Malaysiana 46(1)(2017): 123–128

http://dx.doi.org/10.17576/jsm-2017-4601-16

Production of Biomass by Schizophyllum commune and Its Antifungal Activity towards

Rubberwood-Degrading Fungi

(Penghasilan Biojisim oleh Schizophyllum commune dan Aktiviti Antikulat ke atas Kulat Pereput Kayu Getah)

YI PENG TEOH^1,2*, MASHITAH MAT DON¹ & SALMIAH UJANG³

¹School of Chemical Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal

Seberang Perai South, Penang, Malaysia

²Faculty of Engineering Technology, Universiti Malaysia Perlis (UniMAP), P.O Box 77,

D/A Pejabat Pos Besar, 01000 Kangar, Perlis Indera Kayangan, Malaysia

³Chemistry and Wood Protection Programme, Forest Product Division, Forest Research Institute of Malaysia (FRIM), 52109 Kepong, Selangor Darul Ehsan, Malaysia

Diserahkan: 18 Jun 2014/Diterima: 29 April 2016

ABSTRACT

Rubberwood is the most popular timber for furniture manufacturing industry in Malaysia. Major drawback concerned that rubberwood is very prone to attack by fungi and wood borers, and the preservation method using boron compounds exhibited hazardous effect to the workers. Fungal-based biological control agents have gained wide acceptance and Schizophyllum commune secondary metabolite played an important role in term of antifungal agent productivity. The effects of initial pH, incubation temperature and agitation on biomass production by S. commune were investigated under submerged shake culture. In this work, it was found that the synthetic medium with initial solution pH of 6.5 and incubated at 30ºC with shaking at 150 rpm provided the highest biomass production. The biomass extract from S. commune was then applied onto the rubberwood block panel to investigate its effectiveness. The results showed that biomass extract at a concentration of 5 μg/μL could inhibit the growth of selected rubberwood-degrading fungi, such as Lentinus sp., L. strigosus and Pycnoporus sanguineus.

Keywords: Antifungal activity; biomass production; effectiveness; rubberwood-degrading fungi; Schizophyllum commune

ABSTRAK

Kayu getah ialah kayu yang paling popular untuk industri pembuatan perabot di Malaysia. Kelemahan utama bagi kayu getah itu adalah serangan oleh kulat dan pengorek kayu dan kaedah pengawetan menggunakan sebatian boron menunjukkan kesan berbahaya kepada pekerja. Agen kawalan biologi yang berasaskan kulat telah mendapat penerimaan luas, dan metabolit sekunder Schizophyllum commune memainkan peranan penting dalam produktiviti agen antikulat. Kesan pH awal, suhu pengeraman dan penggoncangan bagi penghasilan biojisim oleh S. commune telah dikaji di bawah kultur kelalang goncang. Dalam kajian ini, didapati bahawa medium sintetik dengan pH permulaan 6.5 dan dikultur pada 30ºC dengan goncangan pada 150 rpm menghasilkan biojisim tertinggi. Ekstrak biojism daripada S. commune kemudiannya telah ditindakbalaskan ke atas blok kayu getah untuk menguji akan keberkesanannya. Keputusan menunjukkan ekstrak biojisim pada kepekatan 5 μg/μL berkeupayaan merencat pertumbuhan kulat pereput kayu terpilih, seperti Lentinus sp., L. strigosus dan Pycnoporus sanguineus.

Kata kunci: Aktiviti antikulat; keberkesanan; kulat pereput kayu getah; penghasilan biojisim; Schizophyllum commune

RUJUKAN

Adebayo-Tayo, B.C., Jonathan, S.G., Popoola, O.O. & Egbomuche, R.C. 2011. Optimization of growth conditions for mycelia yield and exopolysaccharride production by Pleurotus ostreatus cultivated in Nigeria. African Journal of Microbiology Research 5(15): 2130-2138.

ASTM D4445. 2003. Standard Test Method for Fungicides for Controlling Sapstain and Mold on Unseasoned Lumber (Laboratory Method). USA: American Society for Testing and Material. pp. 1-4.

Bai, Z., Harvey, L.M. & McNeil, B. 2003. Oxidative stress in submerged cultures of fungi. Critical Reviews in Biotechnology 23(4): 267-302.

Barberel, S.I. & Walker, J.R.L. 2000. The effect of aeration upon the secondary metabolism of microorganisms. Biotechnology and Genetic Engineering Reviews 17(1): 281-323.

Ertola, R.J., Giulietti, A.M. & Castillo, F.J. 1995. Design, formulation, and optimization of media. In Asenjo, J.A. & Merchuk, J.C. (Eds.), Bioreactor System Design. New York: Marcel Dekker Inc. pp. 90-120.

Fasidi, I.O. & Akwakwa, D.O. 1996. Growth requirements of Volvariella speciosa (Fr. Ex. Fr.) Sing., a Nigerian mushroom. Food Chemistry 55(2): 165-168.

Fazenda, M.L., Seviour, R., McNeil, B. & Harvey, L.M. 2008. Submerged culture fermentation of “higher fungi”: The macrofungi. Advances in Applied Microbiology 63(1): 33-92.

Gbolagade, J.S., Fasidi, I.O., Ajayi, E.J. & Sobowale, A.A. 2006. Effect of physic-chemical factors and semi-synthetic media on vegetative growth of Lentinus subnudus (Berk.), an edible mushroom from Nigeria. Food Chemistry 99(4): 742-747.

Guo, X., Zou, X. & Sun, M. 2009. Optimization of a chemically defined medium for mycelia growth and polysaccharide production by medicinal mushroom Phellinus igniarius. World Journal of Microbiology and Biotechnology 25(12): 2187-2193.

Kumari, M., Survase, S.A. & Singhal, R.S. 2008. Production of schizophylan using Schizophyllum commune NRCM. Bioresource Technology 99(5): 1036-1043.

Purwanto, L.A., Ibrahim, D. & Sudrajat, H. 2009. Effect of agitation speed on morphological changes in Aspergillus nigerhyphae during production of tannase. World Journal of Chemistry 4(1): 34-38.

Rau, U., Gura, E., Oleszewski, E. & Wagner, F. 1992. Enhanced glucan formation of filamentous fungi by effective mixing, oxygen limitation and fed-batch processing. Journal of Industrial Microbiology 9(1): 19-25.

Teoh, Y.P., Mashitah, M.D. & Ujang, S. 2011. Assessment for the properties, utilization, and preservation of rubberwood (Hevea brasiliensis): A case study in Malaysia. Journal of Wood Science 57(4): 255-266.

Teoh, Y.P., Mashitah, M.D. & Ujang, S. 2012. Nutrient improvement using statistical optimization for growth of Schizophyllum commune, and its antifungal activity against wood degrading fungi of rubberwood. Biotechnology Progress 28(1): 232-241.

Zaidon, A., Norhairul, N.A.M., Faizah, A., Paridah, M.T., Jalaluddin, H., Mohd Nor, M.Y. & Nor Yuziah, M.Y. 2008. Efficacy of pyrethroid and boron preservatives in protecting particle board against fungus and termite. Journal of Tropical Forest Science 20(1): 57-65.

Znidarsic, P. & Pavko, A. 2001. The morphology of filamentous fungi in submerged cultivation as a bioprocess parameter. Food Technology and Biotechnology 39(3): 237-252.

*Pengarang untuk surat-menyurat; email: ypteoh@unimap.edu.my