Association of Mushroom Cultivation and Ozonolysis as Pretreatment for Enzymatic Saccharification of Sengon(Falcataria moluccana) Sawdust

https://doi.org/10.22146/jik.34104

Denny Irawati(1*), Soekmana Wedatama(2), Futoshi Ishiguri(3), Shinso Yokota(4)

(1) Faculty of Forestry, Universitas Gadjah Mada
(2) Faculty of Forestry, Universitas Gadjah Mada
(3) Faculty of Agriculture, Utsunomiya University
(4) Faculty of Agriculture, Utsunomiya University
(*) Corresponding Author

Abstract


Wood industry based on sengon (Falcataria moluccana) material has developed rapidly and cause the huge wastes. Lignocellulosic materials, such as sengon sawdust, offer a great potential as cheap and abundant feedstock for biofuels production. Ozone oxidation pretreatment was carried out on sengon wastes to improve fermentable sugar production by enzymatic saccharification. Sengon wood (SW), sengon media (SM), and sengon spent media (SMM), that was waste of media after mushroom cultivation, treated with ozone for different treatment time were enzymatically saccharified. Then the decrease of hydrolysis weight, reducing sugar yield, and monosaccharide yields were determined. Ozone treatment resulted in Klason lignin degradation in the all samples, resulting in the improvement of subsequent enzymatic saccharification. Ozone treatment with the duration more than 30 min was not suitable for SMM sample. Glucose yield after saccharification from the ozone-treated sample for 60 min was the highest among all samples in SW and SM treated, but for SMM it was 30 min. Based on these results, we concluded that mushroom cultivation can reduce the ozone time treatment and it is an effective treatment to improve sugar yield by enzymatic saccharification of sengon wastes.

 

Gabungan Pra-perlakuan Ozonolisis dan Budidaya Jamur Sebelum Sakarifikasi Enzimatis Serbuk Kayu Sengon (Falcataria moluccana)

Intisari

Industri kayu berbahan baku kayu sengon (Falcataria moluccana) saat ini tengah berkembang dengan sangat pesat dan hal ini menyebabkan timbulnya banyak limbah kayu sengon. Materi lignosellulosa, seperti limbah serbuk kayu sengon, merupakan potensi yang sangat baik sebagai bahan baku bio-fuel karena murah dan banyak tersedia. Praperlakuan dengan oksidasi ozon pada limbah kayu sengon dilakukan untuk meningkatkan produksi gula reduksi melalui proses sakarifikasi enzimatis. Serbuk sengon (SW), media sengon (SM), dan limbah media sengon (SMM), yang merupakan sisa dari media budidaya jamur, diberi perlakuan dengan ozon pada berbagai lama waktu perlakuan. Sampel yang sudah diberi perlakuan ozon tersebut kemudian dianalisis kandungan kimianya dan di-sakarifikasi secara enzimatis. Selanjutnya diukur laju hidrolisis, kadar gula pereduksi, dan kadar monosakarida. Perlakuan dengan ozon menyebabkan degradasi kadar Klason lignin di semua sampel, sehingga mengakibatkan peningkatan kemampuan sakarifikasi dari enzim. Perlakuan ozon dengan lama waktu lebih dari 30 menit tidak sesuai untuk sampel SMM. Kadar glukosa hasil sakarifikasi yang tinggi diperoleh dari sampel SW dan SM yang diberi perlakuan ozon selama 60 menit, serta SMM yang diberi perlakuan 30 menit. Berdasarkan hasil ini, dapat disimpulkan bahwa perlakuan jamur dapat mengurangi lama waktu perlakuan ozon dan praperlakuan efektif untuk meningkatkan kadar gula reduksi yang dihasilkan dari sakarifikasi enzimatis limbah kayu sengon.


Keywords


enzymatic saccharification; ozone treatment; reducing sugars; sengon; spent media

Full Text:

PDF


References

Anonimous. 2000. Analysis of main chemical components in wood. pp 94–97 in The Japan Wood Research Society editor. Manual for wood research experiment (In Japanese).

Buneido, Tokyo, Amat AM, Arques A, Beneyto H, Garcýa A, Miranda MA, Segu S. 2003. Ozonisation coupled with biological degradation for treatment of phenolic pollutants: a mechanistically based study. Chemosphere 53: 79–86.

Carrier M, Serani AL, Denux D, Lasnier JM, Pichavant FH, Cansell F, & Aymonier C. 2011. Thermogravimetric analysis as a new method to determine the lignocellulosic composition of biomass. Biomass and Bioenergy 35:298–307.

Dence CW. 1992. The determination of lignin. pp 33–61 dalam Lin SY, Dence CW, editors. Methods in lignin chemistry. Springer Verlag, New York.

Garcia-Cubero MT, Gonza´lez-Benito G, Indacoechea I, Coca M, Bolado S. 2009. Effect of ozonolysis pretreatment on enzymatic digestibility of wheat and rye straw. Bioresources Technology 100: 1608–1613.

Garcia-Cubero MT, Coca M, Bolado S, & Gonzalez-Benito G. 2010. Chemical oxidation with ozone as pre-treatment of lignocellulosic materials for bioethanol production. Chemical Engineering Transactions 21: 1273-1278.

Irawati D, Yokota S, Niwa T, Takashima Y, Ueda C, Ishiguri F, Iizuka K, Yoshizawa N. 2012a. Enzymatic saccharification of spent wo od-meal media made of 5 different tree species after cultivation of edible mushroom Auricularia polytricha. Journal of Wood Science 58:180–183.

Irawati D, Hayashi C, Takashima Y, Wedatama S, Ishiguri F, Iizuka K, Yoshizawa N, Yokota S. 2012b. Cultivation of the edible mushroom Auricularia polytricha using sawdust-based medium made of three Indonesian commercial plantation species, Falcataria moluccana,Shorea sp., and Tectona grandis. Micologia Aplicada International 24:33–41.

Irawati D, Takashima Y, Ueda C, Sutapa JPG, Marsoem SN, Ishiguri F, Iizuka K, Yoshizawa N, Yokota S. 2013. Ozone treatment of spent medium from Auricularia polytricha cultivation for enzymatic saccharification and subsequent ethanol production. Journal of Wood Science 59:522–527.

Miller GL. 1959. Use of dinitrosalicylic acid reagent for determination of reducing sugar. Analytical Chemistry 31:426–428.

Quesada J, Rubio M, Go´mez D. 1999. Ozonation of lignin rich solid fractions from corn stalks. Journal of Wood Chemistry and Technology 19:115–137.

Sarkanen KV, Islam A, Anderson CD. 1992. Ozonation. Pp 387–406 dalam Lin SY, Dence CW, editors. Methods in lignin chemistry. Springer Verlag, New York. Sun Y, Cheng J. 2002. Hydrolysis of lignocellulosic materials for ethanol production: A review. Bioresources Technology 83:1–11.

Ueda C, Takashima Y, Ishiguri F, Iizuka K, Yoshizawa N, Yokota S. 2014. Ozone oxidation pretreatment for enzymatic saccharification of spent culture media after Lentinula edodes cultivation. Journal of Wood Science 61(1):65-69. DOI 10.1007/s10086-014-1441-z.

Yasuda S, Fukushima K, Kakehi A. 2001. Formation and chemical structures of acid-soluble lignin I: sulfuric acid treatment time and acid-soluble lignin content of hardwood. Journal of Wood Science 47:69–72.

Yokota S, Iizuka K, Ishiguri F, Abe Z, Yoshizawa N. 2006. Ozone–dioxane delignification from the cell walls of Japanese cypress (Chamaecyparis obtusa Endl.). Journal of Material Cycles and Waste Management 8:140–144.



DOI: https://doi.org/10.22146/jik.34104

Article Metrics

Abstract views : 3026 | views : 1942

Refbacks

  • There are currently no refbacks.




Copyright (c) 2018 Jurnal Ilmu Kehutanan

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.


© Editorial Board Jurnal Ilmu Kehutanan
Faculty of Forestry, Universitas Gadjah Mada
Building D 2nd floor
Jl. Agro No 1, Bulaksumur, Sleman 55281
Phone. +62-274-512102, +62-274-550541, +62-274-6491420
Fax. +62-274-550541 E-mail : jik@ugm.ac.id
former website : jurnal.ugm.ac.id/jikfkt/
new website : jurnal.ugm.ac.id/v3/jik/

 

Indexed by:

 

Jurnal Ilmu Kehutanan is under the license of Creative Commons Attribution-ShareAlike 4.0 International

Creative Commons License