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Pembuatan Bioetanol Dari Kulit Nanas Dengan Metodeliquid State Fermentation (LSF) Dengan Variasi Waktu Dan Konsentrasi Inokulum Deasy Rahmayuni; Chairul Chairul; Syelvia Putri Utami
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The world consumption of bioethanol for a variety of uses has increased very significantly in recent years. Pineapple skin is one of the potential materials to be processed into bioethanol. Availability of food waste material containing glucose as the skin is still fairly abundant pineapple and its utilization is limited only used for fertilizer and animal feed, so it is necessary for utilization of that adds value as well as a fairly high sugar content (13.65 % reducing sugar) makes the skin of pineapple has the potential to be processed into bioethanol. Through the process of fermentation using Zymomonas mobilis, glucose is converted into ethanol and carbon dioxide. Preparation of starter inoculum carried by Zymomonas Mobilis process. Fermentation takes place in batches with a volume of 1 liter of fermentation medium, fermentation time variation of pH 5 2 , 4 , 6 and 8 days and inoculum concentration variation of 5 , 10 and 15 % (v / v). Stirring speed of 200 rpm and temperature of fermentation at room temperature (25o – 30oC). Bioethanol concentration was analyzed by using gas Chromathography Mass Spectroscopy. The process of optimum fermentation conditions shown in inoculum concentration of 10% v / v and 4 days fermentation time. The concentration of bioethanol obtained under these conditions is 43.10 % (v / v) or 23.75 g / ml.Keyword :Bioethanol, Pineapple Peel, Fermentation, Zymomonas mobilis, Liquid State Fermentation
Pembuatan Bioetanol Dari Nira Nipah Menggunakan Bakteri Zymomonas Mobilis Dengan Variasi Pemekatan Medium Dan Waktu Fermentasi Wahyu Mey Riswanto; Silvia Reni Yenti; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The existence of Nypa palm is abundant in Riau province. Nypa can potentially supply biofuels because Its sap has a sugar content of 15-20% which can be converted into bioethanol. Bioethanol is ethanol produced from raw materials containing starch, sugar and cellulose through a process of fermentation and distillation that can be used as an alternative fuel which is environmentally friendly and renewable. To be Able to produce bioethanol from nypa sap in a laboratory scale, it is necessary to study the manufacture of bioethanol from nypa sap through fermentation by using Zymomonas mobilis fermentation medium volume of 2 liters. The objective of the research is to convert the sugar in the nypa sap through fermentation into bioethanol and to observe the effect of concentration medium of the juice in the fermentation and fermentation time on bioethanol production using Zymomonas mobilis. Through the process of fermentation using Zymomonas mobilis, glucose is converted into ethanol and carbon dioxide. Preparation starter was made with yeast inoculum process Zymomonas mobilis at 10% of the fermentation medium, therefore it can be adaptable and ready for fermentation. Fermentation takes place in batches with a volume of 2 liters of fermentation medium, concentration variations sap by evaporation at 10; 20; 30% (v/v) as well as variations in the fermentation time of 12; 24; 36; 48; 60; 72 and 84 hours. Temperature fermentation at room temperatur is 25 – 30oC. Ethanol concentration was Analyzed by using Gas Chromatography. Optimum conditions of bioethanol production from Nypa Sap were shown having 30% concentrated medium variation, and fermentation hours 60th about 15,164 % (v/v) or 111,689 mg/ml.Keywords: bioethanol, concentrated, nypa Sap, zymomonas mobilis
Pemurnian Bioetanol Hasil Fermentasi Nira Nipah Menggunakan Proses Destilasi-Adsorpsi Menggunakan Adsorben Silica Gel Shintia Oktaviani; Chairul Chairul; Silvia Reni Yenti
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The rapid rate of world population growth conduces demand and supply of fuel is not balance. So that, energy reserves has been depleted in large numbers. Especially fossil fuels which is a main energy. The government has compiled program and policy for development of bioethanol and biodiesel to resolve energy crisis in indonesia which targeted in 2025 can be approximately 15-20% fuels need to fulfill transportation sector and the national industry. This research aims to produce bioethanol fuel grade-adsorption using distillation methods, determine the effect of the ratio of silica gel: bioethanol and height of the adsorbent in the column for producing bioethanol fuel grade. The raw material is bioethanol from nipa sap fermentation results with 13% ethanol content. Ethanol content obtained not too high previously, so that should be took a process that can be increase the purity of bioethanol with distillation process-adsorption. This research divided into two stages. First stage is nipa sap bioethanol distiled up to 96% concentration and second stage is distillation-adsorption using silica gel adsorbent. Independent variables on this research is ratio of silica gel : bioethanol and height of adsorbent in the adsorption column. The most influence process to review bioethanol purification is distillation-adsorption silica gel with ratio: ethanol 1:2 and a height of adsorbent in the column is 3.5 cm with purity of 99,6% and had been categorized fuel grade bioethanol.Keywords: Silica gel, bioethanol, bioethanol fuel grade, nypa, distillation adsorption process
Pengolahan Limbah Cair Industri Pulp Dan Kertas Dengan Metode SRAOP (Sulfate Radical-Advanced OxidationProcess) Menggunakan Katalis Nanomaterial Cobalt Framework (Co@NC) Eka Trisnawati; Edy Saputra; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Catalyst cobalt nanomaterial (Co@NC) was prepared by MOF strategy using rhombic dodecahedral cobalt based on Zeolitic Imidazolate Framework -67 (ZIF-67) as an effective precursor and template. Co@NC was successfully synthesized by reacting cobalt (II) nitrate and 2-methylimidazole with methanol solvent at room temperature and allowed to stand for 48 hours at room temperature to form a purple solid. Then it is carbonized at 600oC for 6 hours with argon. Their properties were characterized by X-ray diffraction (XRD). The Catalyst Co@NC catalyst has 4 peaks that appear at an angle of 2θ: 44.24 °, 51.70 °, 71.03 °, 79.73 ° which are perfectly indexed to the metal characteristics of Co [JCPDS File No. 89-4307]. The catalyst activity of Co@NC was evaluated for the oxidation degradation of organic compounds in the pulp and paper industrial wastewater with radical sulfate. Effect of catalyst concentration (0; 0.1; 0.2; 0.3; 0,4 g/L) and reaction time 120 minutes was investigated in this study. The optimum conditions with the percentage of COD removal reached 80,92% obtained at 120 minutes, catalyst concentration 0.4 g/L, concentration of peroxymonosulfate 2 g/L, reaction temperature of 30oC. Therefore, the Co@NC nanomaterial is very feasible as a catalyst in industrial applications that will be used for wastewater treatment effectively. Keywords: AOP, COD, MOF, Nanomaterial, Wastewater
Fitoremediasi Air Tercemar Polutan Amoniak Dengan Memanfaatkan Eceng Gondok (Eichornia Crassipes) Fariez Fariez; Chairul Chairul; Said Said; ZA ZA
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Contaminated wastewater pollutants ammonia can be done by phytoremediation using water hyacinth plants (Eichornia crassipes). To determine the absorption ability of water hyacinth to the polluted water of ammonia, a number of water hyacinth plants were placed in a test reactor, each filled with artificial water contaminated with ammonia 4x as much as 16 liters for 24 hours. Taken every 24 hours water sample is taken from each test reactor for analysis using a spectrophotometer at 640nm wavelength λ. The results showed that the longer the higher the percentage of absorption of dissolved ammonia absorption by water hyacinth plants in each test reactor nutrition factors in addition to the water hyacinthplants.  Keywords: Water Hyacinth (Eichornia crassipes), pollutants ammonia, phytoremediation
Pembuatan Asam Asetat Dari Sari Kulit Nenas (Ananas Comosus) Menggunakan Acetobacter Aceti Dengan Variasi Volume Inokulum Dan Waktu Fermentasi Multi Handriyani; Chairul Chairul; Cory Dian Alfarisi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Acetic acid is an organic chemical compound that is colorless and has a sharp odor. Pineapple skin can be used as a raw material for making acetic acid by utilizing microorganisms. Microorganisms used to process pineapple skin extract into bioethanol are Saccharomyces cerevisiae and the microorganism used to process bioethanol into acetic acid is Acetobacter aceti. The purpose of this study is to convert sugar in pineapple skin juice through the fermentation process to acetic acid and determine the effect of variations inoculum volume and fermentation time on the resulting acetic acid. This research phase consisted of raw material preparation and inoculum making, fermentation and analysis. The variation of bioethanol fermentation time is 1, 3 and 5 days, while the variation of the inoculum used in this study is 10%; 13%; and 16%. Fermentation results are taken after 1, 3, 5, 7 and 9 days. Optimum fermentation results are bioethanol 5% (v / v) or 39.47 g / L and Yield 53.94% and acetic acid concentration 37.79 g / L and Yield 91.80%. This maximum concentration was obtained on the 9th day of acetic acid fermentation in 13% inoculum of Acetobacter aceti with bioethanol substrate with a fermentation time of 5 days. Keywords : Acetic acid, bioethanol, pineapple skin juice, fermentation, conversion
Biokonversi Kertas HVS Bekas Menjadi Bioetanol Dengan Variabel Konsentrasi Saccharomyces cerevisiae Sisi Oktadira Kalpatari; Chairul Chairul; Yelmida Yelmida
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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One effort to overcome the scarcity of oil fuels is by finding alternative fuels from renewable natural resources. Biomass waste is one of the energy sources in the form of lignocellulose which can produce bioethanol. Indirectly, used Hvs paper is cellulose which has a lot of waste. The level of consumption of Hvs paper in Indonesia and in the world continues to increase. The consequence of increasing consumption of Hvs paper has a high impact on the waste paper produced. The large amount of paper waste available provides an opportunity for efforts to utilize the paper waste. The utalization of used Hvs paper is usually only recycled into Hvs paper again, but the quality is not as good as initially. This study is aimed to convert used Hvs paper become bioethanol because used Hvs paper still contains cellulose as its main raw material. In this study, The process of making bioethanol from used Hvs paper has done with the pretreatment, hydrolysis and fermentation stages. The pretreatment process uses NaOH, then the hydrolysis process with dilute acid is used 1.5 M, hydrolysis temperature of 1300C, time of 120 minutes, The last process is fermentation. The fermentation process was carried out by varying the concentration of yeast which is 1 gr, 3 gr, 5 gr and fermentation time which is 48 hours, 96 hours, 144 hours, and 192 hours. In acid hydrolysis, the maximum sugar concentration was produced at 131.23 gr / L. The best concentration of yeast in this study was 5 grams at the best fermentation time of 144 hours with bioethanol levels obtained at 6% or 47.36 g / L.Keywords: bioethanol, fermentation, hydrolysis, Saccharomyces cerevisiae, Hvs paper
Fermentasi Nira Nipah Skala 50 Liter Menjadi Bioetanol Menggunakan Saccharomyces Cerevisiae Ade Sri Umaiyah; Chairul Chairul; Silvia Reni Yenti
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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One of the natural resources that can be utilized alternative into bioethanol is palm sap. Preparation stater done by culturing medium Saccharomyces cereviseae as developer on 10% yeast fermentation medium thus able to adapt and be ready to do the fermentation. This study aims to make bioethanol from palm sap 50-liter scale with variations in pH 4,5; 5 and 5,5 and fermentation time 24, 36, 48, 60 and 72 hours.. Batch fermentation process takes place with a stirring speed of 200 rpm and temperature of fermentation at room temperature (25-300C). The optimum fermentation conditions indicated on the initial conditions of pH 4,5 and fermentation time of 48 hours the acquisition of or 9% .  Keywords: Bioethanol, palm sap, fermentation, Saccharomyces cerevisiae
Varasi Konsentrasi Enzim Stargen TM 002 Pada Proses Sakarifikasi Dan Fermentasi Serentak Pati Sorgum Menjadi Bioetanol Dike Putra Ganda; Chairul Chairul; Hafidawati Hafidawati
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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One of the plants that can be used as raw material for making bioefuel as alternative energy is sorghum. Grain sorghum has a high starch content that can be used as a substrate for the production of bioethanol. This study aims to determine the concentration of the enzyme and the best time of  fermentation to produce bioethanol. The research method using the simultaneous saccharification and fermentation (SSF) with the aid of enzymes Stargen ™ 002 and the yeast Saccharomyces cereviceae. Variations made to the enzyme concentration Stargen ™ 002 is used as follows: 2.5%, 3%, 3.5% and 4% and fermentation time for 30, 36, 42, 48, 54, 60, 66 and 72 hours. Analysis of the results using the Alcoholmeter with highest bioethanol yield at 4% enzyme concentration at 42 hours of fermentation with ethanol content of 8% (v / v) Keywords: Sorghum, Bioethanol, Stargen™ 002 Enzymes, Enzyme Concentration, SSF
Fermentasi Nira Nipah Dengan Variasi Kekentalan Untuk Produksi Bioetanol Menggunakan Teknik Amobilisasi Sel Oci Khairani; Syaiful Bahri; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Ethanol consumption of the world for a variety of uses has increased very significantly in recent years. Therefore it is necessary to alternate sources of raw materials to manufacture bioethanol and bioethanol production can be increased. Nipa sap is one of potential materials to be processed into bioethanol. Availability of nypa palm land in Indonesia and a fairly high sugar content (15-20%) makes nipa sap has the potential to be processed into bioethanol. Through the process of fermentation using immobilized yeast which Sacharomyces cereviceae, glucose is converted into ethanol and carbon dioxide. Immobilization in the field of biotechnology is defined as a method used to put in physics or chemistry of a cell into a buffer in the form of solid materials, matrix, or membrane. Fermentation takes place in batches with a volume of 2 liters of fermentation medium, heavy beads 40 grams, initial pH of 5,0. Viscosity variation with the palm sap evaporation of 15%, 20%, 25% and fermentation time 24, 36, 48, 60, 72, 84 and 96 hours. The stirring speed of 200 rpm and temperature of fermentation at room temperature (25 – 30oC). Ethanol concentration was analyzed using Gas Chromatography. The maximum fermentation process is shown in viscosity with 25% evaporation and fermentation time 84 hours with the initial sugar concentration 221,163 mg/ml. Bioethanol concentration obtained under these conditions was 8,010% (v/v) or 63,223 mg/ml.Keywords : Bioethanol, Fermentation, Immobilized, Nipa Sap, Sacharomyces cereviceae
Co-Authors Ade Ayu Oksari Ade Sri Umaiyah Adriani Lestari Adrianto Ahmad Ahmad Dedi Fadillah Ahmad Mursyid Ajma Nouri Alya Alissa Amun Amri ANDRIA AGUSTA Annisa Novianti Samin Anthoni Agustien Arfa Dinata Ageng Tirtayasya Cece R Cory Dian Alfarisi David Hamonangan Deasy Rahmayuni Desi Heltina Deswati Deswati Dewi Kusuma Nurmalasari Diah Pramushinta Dike Putra Ganda Dina Citra Naomi Dina Citra Naomi Harianja Dina Remina Drastinawati Drastinawati Edy Saputra Efrizal Efrizal Eka Trisnawati Elia Simanjuntak Ella Awaltanova Erizal Mukhtar Evelyn Evelyn Farhiz Lagan Fariez Fariez Ferry Lismanto Syaiful Futhanul Wewe Gilang Fathurrahman Gusna Merina Hafidawati, Hafidawati Hauriah Hauriah I Gusti Bagus Wiksuana Ihsanul Khairi Iislamiyah Iislamiyah Imron Sutiono Indra Junaidi Zakaria Intan Oktaviani Irdoni HS Irdoni Irdoni Irdoni S Irvan Fadli Wanda Karim Abdullah Khaira Khaira M Ridwan Afitra Maria Peratenta Sembiring Maulia Rayana Mery Sukmiwati Mohammad Rezky Muhammad Rivai Multi Handriyani Nadhira Iffah Lisandra Nurainas Nurainas Nurmiati Nurmiati Nuvicha Rizqi Yuniva Zikra Oci Khairani Rafly Rafly Reni Kuswanazia Reni Oktaviani Rian Efrizal Riki Ariyadi Riki Irwandi Rizka Sefmaliza Roni Roni Rusnam Rusnam Said Said Said Zul Amraini Shintia Oktaviani Silvia Reni Yenti Sisi Oktadira Kalpatari Sri Budi Sulianti Sri Meilani Sri Rezeki Muria Sunarno Sunarno Suwirmen, Suwirmen Syafira Junia Ardhani SYAIFUL BAHRI Syelvia Putri Utami Tafrikhatul Walidah Tantri Wilinda Julia Tiara Tiara Tri Murningsih Wahyu Mey Riswanto Winarto Tarigan Wisrayetti Wisrayetti Yelmida Azis Yeni Rizki Yolanda Amalia YULIASRI JAMAL Yuthia Aulia Riani ZA ZA Zozy Aneloi Noli Zuherti Zainul Zuhri Syam