Effect of Addition of Molasses on Bioethanol Production from Palm Starch Industrial Solid Waste

  • Dewi Astuti Herawati Program Studi S1 Teknik Kimia, Fakultas Teknik, Universitas Setia Budi Surakarta
  • Andang Arif Wibawa Program Studi D4 Analis Kesehatan, Fakultas Ilmu Kesehatan Universitas Setia Budi Surakarta

Abstract

Research has been carried out to determine the effect of the addition of molasses to on bioethanol production from palm starch industrial solid waste. The stages of this research were the preparation of raw materials, delignification of palm starch solid waste, lignin content analysis, enzyme production, anaerobic fermentation and ethanol content analysis. Delignification of palm starch solid waste using 3% NaOH solution. Enzyme production is produced from A. Niger and Trichoderma sp. Fermentation using 5 grams of delignified sample added a nutrient solution, a mixture of cellulase enzymes from A. niger and Trichoderma sp. by comparison (1: 2), molasses and Saccharomyces cereviseae. Analysis of ethanol levels was carried out every day until the 6th day. Delignification using 3% NaOH solution can reduce the level of lignin samples up to 17.15%. The addition of molasses containing 35% sugar as a source of sugar in the palm starch solid waste will increase the levels of bioethanol from 0.0904% to 3, 5407%, whereas molasses with 40% sugar content results in lower bioethanol levels.  The higher the sugar content, the higher the level of bioethanol, but if the sugar content is too concentrated, it causes a slow fermentation process in the production of bioethanol.

Keywords: Key word : bioethanol; mollase; the palm starch industrial solid waste; NaOH; delignification

References

Azizah, N, A N Al-Barrii dan S Mulyani. 2012. Pengaruh Lama Fermentasi Terhadap Kadar Alkohol, pH, Dan Produksi Gas Pada Proses Fermentasi Bioetanol Dari Whey Dengan Subtitusi Kulit Nanas. Research Note. Jurnal Teknologi Aplikasi Pangan. Vol. 1 No. 2 (72-77).

Elwin, Lutfi, M., dan Hendrawan, Y. 2013. Analisis Pengaruh Waktu Pretreatmet dan Konsentrasi NaOH terhadap Kandungan Selulosa, Lignin, dan Hemiselulosa Eceng Gondok Pada Proses Pretreatment Pembuatan Bioetanol. Keteknikan Pertanian Tropis dan Biosistem, 2(2): 104—110

Eka P, dan Halim Amran, 2002, Pembuatan Bioethanol dari Nira Siwalan secara Fermentasi Cair menggunakan Fermipan, Reaktor Guidelines.

Gunam, I.B.W., dan Antara N.S. 1999. Study on Sodium Hydroxide Treatment of Corn Stalk to Increase Its Cellulose Saccharification Enzymatically by Using Culture Filtrate of Trichoderma reesei. Gitayana. Agric. Technol. J. 5 (1):34-38

Hamelinck, C.N., G. van Hooijdonk, dan A.P.C. Faaij. 2005. Ethanol from lignocellulosic biomass: Techno-economic performance in short-, midle- and long-term. Biomass and Bioenergy 28: 384410.

Haryanto, V. I. 2015. Pemanfaatan Limbah Cair Industri Tepung Aren dan Mikroorganisme Lokal sebagai Larutan Nutrisi Terhadap Pertumbuhan dan Hasil Tanaman Baby Kailan (Brassica oleracea) dengan Sistem Hidroponik. Universitas Sebelas Maret

Herawati, D A; Kusumawardhani , E; Puspawati N, 2016. “Pemanfaatan Limbah Ampas Pati Aren Menjadi Bioetanol Secara Enzimatis Metode Konvensional dan SSF”, Simposium Nasional RAPI XV Tahun 2016 FT UMS.

Judoamidjojo, R.M., E.G. Sa’id, dan L.Hartoto. 1989. Biokonversi. Departemen Pendidikan dan Kebudayaan, Dirjen Dikti, Pusat Antar Universitas Bioteknologi Institut Pertanian Bogor.

Kusmiyati, dan Arifin, A. N. 2010. Konversi Umbi Iles-Iles Menjadi Bioetanol Dengan Metode Konvensional dan SSF (Sakarifikasi dan Fermentasi Secara Serentak). RAPI IX (pp. K-116 - K-123). Surakarta: Universitas Muhammadiah Surakarta.

Menon V dan Rao M. 2012. Trends in bioconversion of lignocellulose: Biofuels, platform chemicals & biorefinery concept. Progress in Energyand Combustion Science 8(4): 522–550.

Mosier, N.S, Dale, B.E, Wyman C E dan, Elander S. 2005. Features of promising technologies for pretreatment of lignocellulosic biomas Bioresource Technology 96 , pp. 673–686

Saharee, P., Singh, R., Laxman, S., dan Rao, M., (2012). Effect Of Alkali Pretreatment On The Structural Properties And Enzymatic Hydrolysis of Corn Cob. Appliedbiochemistry and biotechnology. 168(7),1806-1819

SNI 0492 (2008). Pulp-Cara Uji Kadar Lignin Metode Klason.

Sudarsono, Huda, S., Yuniwati, M., & Purnawan. (2013). Pemanfaatan Limbah Serat Pati Aren Sebagai Material Komposit - Poliester. Yogyakarta: Institut Sains & Teknologi AKPRIND.

Taherzadeh MJ dan Karimi K. 2008. Pretreatment of lignocellulosic wastes to improve ethanol and biogas production: A Review. Int. J. Mol. Sci. 9: 1621-1651.

Wang, Z., Keshwani, D.R., Redding, A.P., dan Cheng, J.J., 2010. Sodium hydroxide pretreatment and enzymatic hydrolysis of coastal Bermuda grass. BioresourceTechnology. 101, pp.3583-3585

Widyasari, R.2011. Pengaruh Konsentrasi Enzim Selulase untuk Menghidrolisis Selulosa dan Hemiselulosa TKKS menjadi Gula Reduksi sebagai Bahan Baku Bioethanol,.,Skripsi Universitas Lampung , Bandar Lampung.

Winarti, S.. 1996. Pengaruh Lama Fermentasi dan Kadar Substrat Terhadap Produksi Etanol Pada Fermentasi Onggok oleh Saccharomyces cerevisiae, Fakultas MIPA, Universitas Brawijaya, Malang.

Zheng, Y., Pan, Z., dan Zhang, R., 2009. Overview of biomass pretreatment for cellulosic ethanol production. Int J Agric& Biol Eng. 2(3), pp. 51-68
Published
2019-09-30