Article Per Year (5 Year)
p-Index From 2021 - 2026
1.99
P-Index
This Author published in this journals
All Journal Jurnal Sains dan Teknologi Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Seminar Nasional Teknik Kimia Kejuangan Jurnal Dampak Jurnal Litbang Industri Jurnal Sains & Teknologi Lingkungan Jurnal Sains Teknologi dan Lingkungan (JSTL) Jukung (Jurnal Teknik Lingkungan) Chemistry Indonesian Journal of Chemical Research Jurnal Teknologi Pertanian Andalas Al-Ard: Jurnal Teknik Lingkungan Journal of Bioprocess Chemical and Environmental Engineering Science Dinamika Lingkungan Indonesia Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) BATOBO: Jurnal Pengabdian Kepada Masyarakat
Sri Rezeki Muria
Jurusan Teknik Kimia Fakultas Teknik, Universitas Riau
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Other

Published : 114 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 114 Documents
Search

 4   5   6   7   8 
Kultivasi Mikroalga Menggunakan Media AF6 Berdasarkan Perbedaan Intensitas Cahaya Nova Diyana Nurhanifah; Padil Padil; Sri Rezeki Muria
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Microalgae cultivation use AF6 media based on light intensity difference has done in this research. Light intensity has an important function in the process of photosynthesis. Optimization of light intensity is expected to increase growth microalgae. In the microalgaecultivation of laboratory scale used light lamp for substitute sunlight. This research purpose for determine the effect of light intensity differences on spesific growth rate on various microalgae cultivated in AF6 media. In this research observations of cell density microalgaechlorella sp. (6) and chlamydomonas sp. (4, 5, 19, chl) at media AF6 on the variation intensity 500 lux, 1.000 lux and 1.500 lux are did with testing the optical density of each microalgae with wavelength of 680 nm using UV-VIS spectrophotometer. The research resultexplain specific growth rate and shortest doubling time occurred in the light intensity 1.500 lux. Microalgae which has spesific growth rate and shortest doubling time are microalgae Chlorella sp.with value 0,78/day, and 0,88 day respectively.Keywords: light intensity, density, growth, microalgae
Biosorpsi Kromium (Cr) Pada Limbah Cair Industri Elektroplating Menggunakan Biomassa Ragi Roti (Saccharomyces cerevisiae) Resna Rauda Pratiwi; Shinta Elystia; Sri Rezeki Muria
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Electroplating industry is one of industry that produce waste water containing heavy metals. Among the heavy metals contained in the waste water is Chromium (Cr) which have a high toxicity. One technology that can be applied to set aside Cr in wastewater is by biosorption method using biomass derived from baker's yeast (Saccharomyces cerevisiae). This study aimed to study the ability of biomass yeast (Saccharomyces cerevisiae) in designated Cr in weight variation biosorbent is 0.25; 0.5 and 0.75 grams, 80 mesh size; 100 and 140 and the contact time 1; 2; 3 and 4 hours. The results showed the highest removal efficiency of Cr occurs in biosorbent weight of 0.75 grams in a size of 80 mesh and a contact time of 4 hours with an efficiency of 54.7%. Biosorption process showed that values adsorption capacity that is 3.3258 mg Cr / gr biosorbent.Keywords: biosorption, Saccharomyces cerevisiae, Cr, mesh size, contact time, heavy metals
Pemanfaatan Mikroalga Dari Limbah Cair Kelapa Sawit Menjadi Bioetanol Dengan Variasi Konsentrasi Asam Sulfat Diana Aprila; Shinta Elystia; Sri Rezeki Muria
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Combustion of fossil fuels is the main cause of global warming. The high dependence of fuel resource will influence the depletion of fossil resource (oil, natural gas, and coal). Therefore, it is important to develop alternative energy source continuously and environmentally friendly such as bioethanol. Green microalgae like Chlorella purenoidosa has a carbohydrate content in the cellulose and hemicellulose form in its cell wall which can be utilized for bioethanol production. In this research was conducted the conversion of microalgae Chlorella pyrenoidosa to bioethanol as renewable energy. This research aimed to study the effect of acid concentration and temperature on hydrolysis of microalgae and the effect of fermentation time to bioethanol from microalgae hydrolisate. Hydrolysis process conducted for 75 minutes with sulphuric acid concentration 1%, 2%, 3% and 4% (v/v) at 100 oC. The glucose produced was analyzed with Nelson-Somogyi method. Hydrolysis condition that produces highest glucose yield was used to make a substrate for fermentation. Fermentation process conducted for 3 days. Measurement of bioethanol concentration using refractometer. The result showed the highest glucose concentration obtained was 3.51 mg/ml and this was achieved when the hydrolysis occurred at 1% (v/v) sulphuric acid concentration. Fermentation time 3 days provide bioethanol concentration about 0,24875%.Keywords: Chlorella pyrenoidosa, hydrolysis, fermentation, bioethanol.
Pengaruh Rasio Perbandingan Pome Dan Suspensi Mikroalga Pada Sistem Semikontinu Terhadap Laju Pertumbuhan Konsorsium Mikroalga Wenny Andini; Shinta Elystia; Sri Rezeki Muria
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Palm Oil Mill Effluent (POME) contains organic matter content and high pollutant load that contributes to environmental pollution. The microalgae consortia is able to utilize organic material as a source of nutrition for its growth, therefore may reduce pollutant. The aim of this research to determine effect rasio POME and microalgae consortia to growth rate microalgae. POME treatment using flat-photobioreactor with semicontinuous systems at variations POME : microalgae consortia 100:0; 80:20; 75:25; 70:30 (%, v/v). The results showed the best variation it POME : microalgae consortia in 70:30 (%, v/v), with growth rate 0,181/day, and TSS 38.000 mg/l. Keywords: Growth Rate, Microalgae Consortia, Palm Oil Mill Effluent (POME), Semicontinuous
Pengaruh Variasi Konsentrasi H2SO4 Dan Waktu Hidrolisis Dalam Pembuatan Glukosa Dari Bungkil Inti Sawit (BIS) Tri Lusi Lisa Dila; Silvia Reni Yenti; Sri Rezeki Muria
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Indonesia is the largest producer of crude palm oil (CPO), followed by Malaysia and Thailand. The area of Indonesian palm oil plantations produces palm kernel oil (PKO) and palm kernel cake (PKC) 8,573,886 tons / year. BIS has lignocellulose content, lignocellulosic structure can be converted to glucose and has the potential to become bioethanol which can meet Indonesia's energy needs. The objectives to be achieved in this research are to characterize PKC as a raw material and determine the best H2SO4 concentration and hydrolysis time in the manufacture of glucose. There are two stages in this research, namely delignification and hydrolysis. Delignification uses a base solvent with a concentration of 6% NaOH cooking process at a temperature of 100 oC and a reaction time of 1 hour. The results showed that the base treatment process was able to increase cellulose to 39.1%, hemicellulose 10.9%, and a reduction in lignin by 5.65%. Second, hydrolyzed using variations of H2SO4 (1, 2 and 3 M) and hydrolysis time (3, 4 and 5 hours) at a temperature of 100 oC. The highest sugar concentration was produced from the hydrolysis process at a concentration of H2SO4 3 M and a 5 hour hydrolysis time of 22.11 g / L. Keywords: glucose, hydrolysis, palm kernel cake
Pengaruh Laju Alir Umpan Terhadap Efisiensi Penyisihan Padatan Dalam Limbah Cair Pulp Dan Kertas Dengan Reaktor Kontsk Stabilisasi Elfina Noviarni Chandra; Adrianto Ahmad; Sri Rezeki Muria
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

High consumption of paper both globally and nationally have pushed pulp and paper industry to increase its production capacity from year to year. This resulted the wastewater produced in large quantities. Characteristics of solids in pulp and paper wastewater includes TS (Total Solid), TVS (Total Volatile Solid), TSS (Total Suspended Solid) and VSS (Volatile Suspended Solid) respectively are 0,7; 0,28; 0,6; 0,26 g/L. Solids in the wastewater is a material adverse impact on water quality, such as reducing sunlight penetration into bodies of water, increasing the turbidity of water, can lead to impaired growth for organism and solubility of oxygen in water. Solids handling of pulp and paper wastewater can be aerobically by using stabilization contact reactor. The purpose of this research is to removing the content of solids in pulp and paper wastewater and determine the effect of feed flow rate of solids removal efficiency and biomass concentration on stabilization contact reactor. The conditions of this research is detention time in stabilization tank is 4 hours, sludge age 15 days and % resirculation is 75% of influent flow. The results showed that the solids removal includes TS, TVS, TSS and VSS by varying feed flow rate for 2,2 L/hour, 2,9 L/hour, 4,4 L/hour and 8,8 L/hour, the highest solids removal efficiency obtained at 2,2 L/hour respectively are 72,38%, 69,05%, 79,26% and 74,36%. This suggests that the stabilization contact reactor is stabilized in removing solids content of pulp and paper wastewater.Keyword: Aerobic, Content of Solids, Pulp and Paper Wastewater, Reactor Contacts Stabilization.
Produksi Bioetanol Dari Mahkota Nanas Menggunakan Bakteri Zymomonas Mobilis Dengan Variasi Konsentrasi Inokulum Dan Penambahan Nutrisi Suci Rahmadani; Sri Rezeki Muria; Syelvia Putri Utami
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Depletion of fuel oil encourage to find alternative energy that can be renewable to support requirement energy. Therefore, looked for alternative sources of raw materials and the potential is lignocellulosic biomass. This study uses the crown of the pineapple as the main raw material. This pineapple crown containing cellulose that can be utilized as bioethanol. This study was conducted to produce ethanol by fermentation of cellulose pineapple crown with treatment concentration inoculum at 12%, 14% and 16% with the addition nutrition of urea 0,6 g/l and fermentation time of 24, 48, 72, 96 and 120 hours. The fermentation was conducted in batch process. The result showed that inoculum volume and substrate fermentation also ethanol increased since the population of cells improved. The highest yield of bioethanol is 6% (v/v) at inoculum concentred 14% and the fermentation time 96 hours.keywords : delignification, hydrolysis, fermentation, urea.
Pembuatan Bioetanol Dari Kulit Nenas Menggunakan Enzim Selulase Dan Yeast Saccharomyces Cerevisiae Dengan Proses Simultaneous Sacharificatian And Fermentation (SSF) Terhadap Variasi Konsentrasi Inokulum Dan Waktu Fermentasi Dwi Laura Pramita; Elvi Yenie; Sri Rezeki Muria
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

One of potential material that could be the raw material of bioethanol is pineapple peels. Pineapple peels is one of the biggest agricultural wastes in Indonesia, especially for Riau Province. Pineapple peels could be raw material for bioethanol production due to contains of fiber, carbohydrate and glucose. The purposes of this research are for making bioethanol from pineapple peel by using Simultaneous Sacharification and Fermentation Process (SSF) for finding the maximum inoculums concentration and the best time for fermentation process. The variations of inoculums are 5%, 7%, 10%, 12% and 15%. Then the variations for fermentation time are 2, 3, 4 and 5 days. The consists of bioethanol were tested by using alcoholmeter. From this research, the highest value of bioethanol is 14% or equal to 110,502 mg/ml, for variations at 10% inoculums and 4 days fermentation process.                                             Keyword: Bioethanol; Pineapple peels; Saccharomyces           Cerevisiae; Cellulose; SSF
Pembuatan Bioetanol Dari Limbah Tongkol Jagung Menggunakan Proses Simultaneous Sacharificatian And Fermentation (SSF) Dengan Variasi Konsentrasi Enzim Dan Waktu Fermentasi Zul Fadly Khaira; Elvi yenie; Sri Rezeki Muria
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

One of energy source alternative that can be used as a substitute for fossil fuel-based energy, is bioethanol. Bioethanol is biochemistry fluid from fermentation process of sugars by using microorganism. The raw material of bioethanol production is very diverse, like corn cob. Corn cob can be used as raw material for bioethanol production because contain of cellulose. This study aims to make bioethanol from corn cob with delignification process and using Simultaneous Saccharification and Fermentation (SSF) method with variation of cellulase enzyme are 3%, 5%, 7%, 9%, and 11% v/v substrate and fermentation duration are 72, 96, and 120 hours. From this research were obtained the highest bioethanol concentration is 8% on the addition of cellulase enzymes 11% v/v substrate with 72 hour fermentation time.Keyword: Bioethanol, delignification, SSF
Pengaruh Rasio C:N Dan Panjang Gelombang Cahaya Terhadap Peningkatan Kandungan Karbohidrat Chlorella SP Dengan Memanfaatkan Limbah Cair Hotel Sri Indira Puspa Pertiwi; Shinta Elystia; Sri Rezeki Muria
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Carbohydrate content in microalgae can be used as raw material for producing biofuels. Microalgae need nutrients such as carbon and nitrogen also light for their growth. Nutrient source can be obtained from wastewater, such like hotel wastewater. The objective of this study was to determine the best condition for Chlorella sp producing high carbohydrate content by varying the C:N ratio 100:7, 100:13, 100:32 and the light wavelength using a white light color (380-750 nm), blue (450-495 nm), green (495-570 nm), and red (620-750 nm). The experiment was conducted at room temperature under 2000 lux illumination for 15 days. The results showed that Chlorella sp produced the highest carbohydrate content (45,77 mg/l) under C:N ratio 100:7. Moreover, when algae was cultivated under different light wavelength showed that Chlorella sp has grown better and produced more carbohydrate content (48,39 mg/l) under blue light (450-495 nm) when compared to the other types of light. Keywords: Chlorella sp, carbohydrate, C:N ratio, light wavelength
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