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Produksi Bioetanol Dari Pati Sorgum Dengan Variasi Penambahan Cordyceps Sinensis Dan Waktu Fermentasi Novriandi, Rizky; Yenie, Elvi; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Excessive human consumption and dependence on fossil fuels cause fuel reserves become depleted, while for the renewal takes thousands and even millions of years. To overcome fossil fuel dependency is carried sorghum starch conversion into bioethanol as a renewable energy. In this research, sorghum starch fermentation process using bacteria Saccharomyces Cerevisiae reviewed variations additions Cordyceps sinensis 0.5 g, 1 g, 1.5 g, and 2 g, to obtain bioethanol from sorghum starch with higher level. The purpose of this study to determine the effect of addition Cordyceps Sinensis variation conversion to bioethanol produced and determine the effect of variations in the fermentation time to conversion of bioethanol produced. Fermentation was conducted in 2 Liter fermentor with variations of fermentation time from 12, 24, 48, 72, until 96 hours, addition of Cordyceps Sinensis 0.5 g, 1 g, 1.5 g, and 2 g. Cordyceps sinensis role in improving the resilience microbial cells in the fermentation medium to produce bioethanol at higher level. The addition Cordyceps Sinensis can promote the growth microorganisms and fermentation activity. Sorghum starch fermentation process produce optimum conditions on addition Cordyceps Sinensis much as 1 gram and fermentation time of 96 hours with a bioethanol content of 2.124882% (v / v).Keywords: Bioethanol, Starch Sorghum, Saccharomyces Cerevisiae, Cordyceps Sinensis
Pengolahan Limbah Cair Sawit Untuk Menyisikan TSS Menggunakan Chlorella Sp. Yang Diimmobilisasi Ca-Alginat Di Dalam Flat-Fotobioreaktor Hasti, Fucy Adilla; Elystia, Shinta; Muria, Sri Rezeki
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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Industry of palm oil continues to develop so that production of palm oil increases followed by increasing by-products in the form of waste. The biggest waste is Palm Oil Mill Effluent (POME) wastewater and needs to be treated because containing high organic matter. Utilization of microalgae carried out to wastewater treatment process. POME is used as a medium and nutrient for microalgae growth. Chlorella sp. immobilized with calcium alginate to remove of TSS parameter on POME. In this study, variations of wastewater concentration are 50%, 75%, 100% (v/v), and different source light i.e. artificial light and sunlight sources, and the contact times 0,1,3,5,7 (days ). Based on the results that Chlorella sp. able to growth well in a medium of 50% wastewater concentration using artificial lightsource on 7th days and removal efficiency of TSS obtained to 76.43%. Keywords: Palm Oil Mill Effluent, TSS Removal, Immobilization of Alginate, Flatphotobioreactor
Fermentasi Nira Nipah Menjadi Asam Asetat Menggunakan Acetobacter Pasteurianus Dengan Variasi Konsentrasi Gula Dan Waktu Fermentasi Rohaya, Rohaya; Chairul, Chairul; Muria, Sri Rezeki
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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Acetic acid is widely used in the manufacture of chemicals, food additives, and cosmetics. Acetic acid can be produced by fermentation using nypa sap raw material because it contains sucrose, glucose, and fructose. One of the factors that influence fermentation results is the concentration of sugar. The fermentation process was carried out with two fermentation stages in stage I using S. Cerevisiae at 1,3 and 5 days fermentation time with a sugar concentration of 249 g / L. The resulting bioethanol was followed by the second stage of fermentation using A.Pasteurianus at 1, 3, 5, 7 and 9 days fermentation time. The maximum concentration of acetic acid was obtained at 9 days fermentation and bioethanol substrate 23,68 g / L which was 5,35 g / L and 49,73% yield.Keywords : Acetic acid, A. Pasteurianus, fermentation, nypa sap.
Pemanfaatan Bead Alga Chlorella Sp. Untuk Menyisihkan Total Suspended Solid (TSS) Pada Limbah Cair Sawit Menggunakan Flat-Fotobioreaktor Darmayanti, Indah; Elystia, Shinta; Muria, Sri Rezeki
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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Abstract

Palm oil mill effluent containing pollutants such as organic matter and high suspended solids that contributes to environmental pollution. Organic material contained in palm oil mill effluent can be used as nutrition by microalgae Chlorella sp. which is entrapped inside the alginate bead and can reduce TSS content in palm oil mill effluent. The TSS removal process was carried out in a flat-photobioreactor with various concentrations of algal bead in the amount of 6, 8, 10, 12, and 14 beads/mL of wastewater with contact times of 0, 1, 3, 5, and 7 days. Based on the results of the study, the best TSS removal efficiency was found in flatphotobioreactors with concentrations of algal bead 12 beads/mL of wastewater on the seventh day at 80.1%. Keywords: Palm Oil Mill Effluent, Chlorlla sp., Algal bead concentration, TSS
Pengaruh Konsentrasi Palm Oil Mill Effluent (Pome) Dan Komposisi Jumlah Nutrien Untuk Media Kultur Chlorella Pyrenoidosa Sebagai Bahan Baku Biofuel Erlangga, Herta Furaida; Elystia, Shinta; Muria, Sri Rezeki
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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Abstract

utilization of a dynamic world energy consumption in the limitations of fossil energy reserves has created opportunities for the use of microalgae as a biofuel. The use of microalgae as a feedstock source for bioethanol production requires high yields of both biomass and carbohydrates. one of the potentially mikroalga as raw bioetanol is Chlorella pyrenoidosa. Chlorella pyrenoidosa has a carbohydrate content in the cellulose and hemicellulose form in its cell wall which can be utilized for bioethanol production. Palm Oil Mill Effluent (POME) has been studied for their potential as medium growth of microalgae due to high nutrient content. This research was conducted with variation of POME concentration (0; 25; 50; 75 ; 100%v) in medium and addition of synthetic nutrient in the form of urea as nitrogen source and TSP as phosphate source with ratio (2:1 ; 1:2 ; 0,5:1) to enchance the algae growth. The result showed the highest carbohydrate concentration was 184,1 mg/L at cultivation condition of POME concentration 25%v with ratio (urea:TSP) 2:1.Keywords: Chlorella pyrenoidosa, Palm Oil Mill Effluent (POME), Urea, TSP, Carbohydrates
Inaktivasi Termal Spora Jamur Eupenicillium Javanicum Dalam Jus Nanas Adella, Lufya; Evelyn, Evelyn; Muria, Sri Rezeki
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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Abstract

Eupenicilium Javanicum is a mold that has high heat resistance. The purpose of this study was to determine the effect of temperature (T: 80 ° C, 85 ° C, 90 ° C) at soluble solid SS: 10 ° Brix on the thermal inactivation of E. Javanicum spores. Then determine the value of D and Z. This study uses the thermal method of pasteurization process and spore calculation using the spread plate method. The D-values obtained at SS 10 ° Brix for temperatures 80, 85 and 90 ° C were 10.82; 4.63; and 1.45 minutes and the Z-value obtained is in the at 11,47 ° C. It was shown that haiger temperature resulted in the decreasing of the timeneeded to inactivate the spores. The results of this study emphasize the importance of temperature to the D and Z value for pineapple juice pasteurization.Keywords: Ascospore, Inactivation, Pasteurization, Pineapple juice, E. Javanicum.
Penyisihan Kromium (Cr) Pada Limbah Cair Elektroplating Menggunakan Biomassa Ragi Roti (Saccharomyces Cerevisiae) Yang Diimmobilisasi Dengan Kalsium Alginat Masriza, Maya; Elystia, Shinta; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Chromium (Cr) is a heavy metal that has a toxicity and the presence in waters caused by the disposal of wastewaste from various industrial activities, one of them is electroplating industry. One of method that can be applied to reduse the concentration of Cr in wastewater is biosorption using biomass of baker's yeast (Saccharomyces cerevisiae) which immobilization with calcium alginate. This research aims to determine the ability of biomass of baker's yeast (Saccharomyces cerevisiae) on variations concentration of sodium alginate (1%, 2% and 3%), weight biosorbent (0,5, 1, 1,5 and 2 grams) and contact time (1, 2, 3 and 4 hours). Concentration Cr wastewater was analyzed using AAS instrument. The results showed the Cr concentrations was highest at a concentration of 3% alginate, biosorbent weight of 0,5 gram and contact time of 3 hours with the adsorption capacity of 2,608 mg Cr /g biosorbent.Keywords: biosorption, Cr, electroplating wastewater, (Saccharomyces cerevisiae), Immobilization, calcium alginate.
Kapasitas Adsorpsi Anabaena cycadae Untuk Penyisihan Logam Crom (Cr) Dari Limbah Cair Industri Elektroplating Juarsa, Tri; Elystia, Shinta; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Utilization of algae biomass can be an alternative solution to environmental pollution problems due to heavy metals, because it has an active site and pores on the surface so it can be used in biosorption process. This study was conducted todetermine whether the biosorbent of Anabaena cycadae algae in reducing Cr level of electroplating industry waste water. Biosorbent dose variation are 500 mg /l, 700 mg / l, 900 mg / l and 1100 mg / l, 105μm, 149 μm and 177 μm biosorbent particle size and contact time variations of 30, 45, 60, and 75 minutes wereperformed to determine the effect to the biosorption process. The optimum state was obtained at an algal dose is 900 mg / l, a particle size is 105 μm with a contact time is 60 min. The adsorption capacity of algae in absorbing Cr metal is 2,379 mg / g.Keywords: biosorption, algae biomass, biosorbent mass, pH, contact time, Cr, electroplating wastewater
Pemanfaatan Biomassa Alga Biru-Hijau Anabaena Cycadae Dalam Proses Biosorpsi Logam Cr Pada Limbah Cair Industri Elektroplating Fanani, Adita Suri; Elystia, Shinta; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Chromium (Cr) is a heavy metal that has a toxicity and the presence in waters caused by the disposal of wastewater from various industrial activities, one of them is electroplating industry. One of technology that can be applied to reduce the concentration of Cr in the electroplating industry wastewater is biosorption by using biomass of blue-green algae Anabaena cycadae. This research aims to reducing the concentration of Cr was analyzed using AAS on variation mass of biomass (0.1; 0.2; 0.3; and 0.4 grams), pH of wastewater (3,5, 7, and 9), and the detention time (30, 60, 90, and 120 minutes). The results showed the adsorption capacities of Cr concentration was highest in mass of biomass 0.1 grams, pH 7, and detention time of 60 minutes is 4,492 mg Cr / g biomass.Keywords: Biosorption, algae biomass, biosorbent mass, pH, contact time, Cr, electroplating wastewater
Biosorpsi Logam Cr Dari Limbah Cair Industri Elektroplating Menggunakan Biomassa Alga Biru-Hijau (Anabaena Cycadae) Yang Diimmobilisasi Dengan Silika Gel Putri, Aulia Dewi; Elystia, Shinta; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Chromium (Cr) is a heavy metal that has a toxicity and the presence in waters caused by the disposal of wastewater from various industrial activities, one of them is electroplating industry. One of technology that can be applied to reduce the concentration of Cr in the electroplating industry wastewater is biosorption byusing biomass of blue-green algae (Anabaena cycadae) which immobilization with silica gel. This research aims to reducing the concentration of Cr was analyzed using AAS on variation mass of biomass (0.1; 0.2; 0.3; and 0.4 grams), pH of wastewater (3,5, 7, and 9), and the detention time (30, 60, 90, and 120 minutes).The results showed the adsorption capacity of Cr concentration was highest in mass of biomass 0.2 grams, pH 5, and detention time of 30 minutes is 5.79 mg Cr / g biomass.Keywords: Biosorption, Cr, wastewater of electroplating industry, Anabaenacycadae, immobilization, and silica gel
Co-Authors Adella, Lufya Adli Satria Sandika Adrianto Ahmad Adrianto Ahmad Aisyah Sri Lestari Andhika Chandra Artha, Ulfa Dwi Aulia Masta Bahruddin Bahruddin Bahruddin Bonita Esther FS Boy Jansen Roberto Manik Chairul Chairul Chairul Chairul Darmayanti, Indah David Andrio Devita Ulfa Sari, Devita Ulfa Dewi Kusuma Nurmalasari Dian Larasati Dian Larasati Diana Aprila Dina Citra Naomi Dina Citra Naomi Harianja Doni Fozla Dwi Laura Pramita Elfina Noviarni Chandra Elgina May Lestari Elvi Yenie, Elvi Erlangga, Herta Furaida EVELYN EVELYN Evelyn Evelyn Fajril Akbar Fanani, Adita Suri Fauzani, Rhanti Fauzy Isnandar Febrina Adelina Sigalingging Fikri Miftahul Shiddiq Firmanto, Firmanto fitriyanti fitriyanti Gita Aziza Salis, Gita Aziza Hamzah, Nirwana Hasti, Fucy Adilla Hasti, Fucy Adilla Hengky Darma Satria, Hengky Darma Hilmiyati Hilmiyati Ida Zahrina Ikhsan ' Fajrin Indah Darmayanti Darmayanti Indah Kartika Zulfa Indah Kartika Zulfa Indra Purnama Insani, Suciati Dwi Irdoni HS Irma Damayanti Isabella Amalia Denisa Putri Jeckson, Edie Jelizanur Jelizanur Jessar Hendrianto Juarsa, Tri Khairat Komalasari Komalasari Larasati, Dian Lely Rahmawati Saragih Lidya Anggraini Lita Darmayanti M. Rafi Yunanda Masriza, Maya Masroah Tuljannah Mastiar Krisdayanti Sinaga Maya Ratna Sari Mayang Sari Meilano Ashari Akbar Meisy Dhyta Amelia Meisy Dhyta Amelia Meliana Dewi Mesy Susri Darsi Muhammad Rivai Mustika Chairani Mustika Chairani Mutia Nurrahmadhani Niken Triani Klaway Reza Nova Diyana Nurhanifah Nova Ramadhani Farnas Novebriantika Novebriantika Novira, Tria Bela Novriandi, Rizky Nur Irfana Mardiyah Nurul Annisa Nuryanti, Lidya Oding Sitorus Okky Rizky Sinaga Padil Padil Purwoko, Agus Putri, Aulia Dewi Putri, Bella Nadiah Rahani Rahani Rendy Hidayat Resna Rauda Pratiwi Resna Rauda Putri Resti Ossi P Riko Naldo Saputra Rizkya Ramadhani Rohaya, Rohaya Roin Nuretha Roy Ronald Siburian, Roy Ronald Rozanna Sri Irianty Sakinah Rhajani Sally Mandari Sandy Juliana Sari Santoso Nugroho Sari, Nurriya Mayang Sheilviana Angela Shindi Unada Shinta Elystia Silvia Reni Yenti Sitinjak, Jufri Suanto Sri Armita Sari Sri Helianty Sri Indira Puspa Pertiwi Sri Indira Puspa Pertiwi SUSANTO, RENO Syelvia Putri Utami Tantri Wilinda Julia Tasbieh, Hayatrie Tri Lusi Lisa Dila Vonny Meidina Rizani Vonny Meidina Rizani Wenny Andini Wulandari, Zarah Ayu Yelmida Azis Yolanda Amalia Yuliyana Rahmawati Zahra Nadia Elysahaq Zuchra Helwani Zul Fadly Khaira Zuqni Meldha