Hydrolysis of Sorghum Seed Pulp with Microwave for the Production of Reducing Sugar as Raw Material of Bioethanol

  • Sefrinus M. D. Kolo Timor University.
  • Eduardus Edi Timor University.
Keywords: Sorghum, Hydrolysis, Microwave, Reducing Sugar, Bioethanol

Abstract

Sorghum is a cereal plant that can grow in various environmental conditions so that it is potential to be developed, especially on dry climate marginal land in Indonesia. Sweet sorghum has great potential to be used as raw material for ethanol besides sugar cane. Cultivation of sweet sorghum has shifted from food and feed raw materials to industrial raw materials, both small and large scale. This study aims to obtain reducing sugar levels as raw material for bioethanol through hydrolysis using a microwave. As much as 10 grams of sorghum powder is suspended with dilute H2SO4 solution of 0.1 N, 0.3 N and 0.5 N as much as 250 mL and then heated using microwave irradiation at a temperature of 200 oC for 20 and 40 minutes. The liquid fraction produced by hydrolysis was analyzed by reducing sugar content with the DNS method using a UV-Vis spectrophotometer. The results obtained showed that the optimum hydrolysis conditions using microwave were achieved at concentrations of H2SO4 0.5 N at 200 oC and hydrolysis time at 40 minutes. Reducing sugar content of 42.71 mg / L. The sugar content rises by 19.95% compared to the hydrolysis time of 20 minutes.

Downloads

Download data is not yet available.

References

Bintang, M. 2010. Teknik Penelitian Biokimia. Departemen Biokimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, IPB. Bogor. Indonesia

Hidayati, R.M., Qudsi P., Wicakso, D.R. 2016. Hidrolisis Enzimatis Sampah Buah-buahan menjadi Glukosa sebagai Bahan Baku Bioetanol. Jurnal Konversi. 5(1) pp. 18-21.

Kolo, S.M.D., Siburian, R.A.F., Lulan, T.Y.K. 2016. Produksi Biodiesel dari Minyak Biji Jarak Pagar (Jatropha curcas L.). Bio–Edu. 1(1): 6-8.

Kumar, P., Barret D.M., Delwiche, J., Stroeve, P. 2009. Methods for Pretreatment of Lignocellulosic Biomass for Efficient Hydrolysis and Biofuel Production. Journal of American Chemical Society48(8), pp 3713–3729.

Leo M.L. Nollet, Toldra F. 2009. Handbook of Dairy Foods Analysis. CRC Press

Nikolić. S., Mojović.L., Rakin.M., Sekulić.M.V., Pejin. D., Pejin. J. 2010. Improvement of Bioethanol Production from Corn by Ultrasound and Microwave Pretreatments. Chemical Engineering Transactions21, 1327-1332.

Suarni. 2012. Potensi Sorgum sebagai Bahan Pangan Fungsional Suarni. Iptek Tanaman Pangan 7(1) pp (58-66)

Xiang, Q., Lee, Y. Y., Pettersson, P. O., Torget, R. W. 2003. Heterogeneous Aspects of Acid Hydrolysis of α-Cellulose. Biotechnology For Fuels And Chemicals. Applied Biochemistry and Biotechnology. 107(1-3) pp 505-514.
Published
2018-12-23
How to Cite
Kolo, S., & Edi, E. (2018). Hydrolysis of Sorghum Seed Pulp with Microwave for the Production of Reducing Sugar as Raw Material of Bioethanol. Jurnal Saintek Lahan Kering, 1(2), 22-23. https://doi.org/https://doi.org/10.32938/slk.v1i2.596
Section
Original research article