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All Journal Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Riset Kimia PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Journal of Bioprocess Chemical and Environmental Engineering Science Jurnal Abdi Masyarakat Indonesia Sagu JURNAL KIMIA SAINTEK DAN PENDIDIKAN BATOBO: Jurnal Pengabdian Kepada Masyarakat
Rozanna Sri Irianty
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities 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 Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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Proteksi Katodik Dengan Menggunakan Anoda Korban Pada Struktur Baja Karbon Dalam Larutan Natrium Klorida Rahmat Ilham; Komalasari Komalasari; Rozanna Sri Irianty
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

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Abstract

Pipe installation of oil and gas processing are located on land or at sea are generally made of carbon steel are susceptible to corrosion by the environment. A system to protect the corrosion of carbon steel is a sacrificial anode cathodic protection. Sample material used is low carbon steel with aluminum and zinc sacrificial anodes.Test condensation used is NaCl at a concentration of 500 ppm, 5.000 ppm, 15.000 ppm and 30.000 ppm then performed by varying the distance between the anode and cathode at a distance of 2 cm,3 cm and 4 cm. The results using the sacrificial anode aluminum and zinc. Where the best results in the sacrificial anode aluminum with carbon steel corrosion rate of 1,08 mpy for NaCl concentration of 500 ppm with the distance between electrodes 2 cm.Keywords: sacrificial anode, NaCl, corrosion rate, cathodik protection.
Sintesis Membran Selulosa Asetat Untuk Desalinasi Air Payau Vany Silvia; Jhon Armedi Pinem; Rozanna Sri Irianty
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

One of energy that can be used to produce pure water in coastal areas of Riau is using cellulose acetate membrane. Raw material used in this experiment is a cellulose acetate, acetone and formamide. This research aims to make cellulose acetate membrane for brackish water treatment process into pure water with cellulose acetate variations of 16%,17%,18%,19% and 20% and operating pressure is 2, 4, 6, 8 and 10 bar. The results obtained are greater then the composition of the cellulose acetate will be smaller flux produced and greater the rejection is generated. The greater the operating pressure, the greater the flux obtained and smaller the rejection obtained.Keywords : cellulose acetate, flux, membrane,rejection
Pengendalian Korosi Dengan Menggunakan Daun Nanas Sebagai Green Inhibitor Pada Baja ASTM A36 Viona Aulia Rahmi; Komalasari Komalasari; Rozanna Sri Irianty
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Corrosion is a decline quality of a metal because of chemical reaction a metal with its environment. The use of inhibitors is one way of corrosion control on metals, especially on the inside of the pipe. Pineapple leaf extract can be used as a green inhibitor. This study aims to utilize pineapple leaf extract as a green inhibitor about concentration of the inhibitor in controlling the corrosion rate by varying the time of the metal immersion. Extraction is done with a ratio of ethanol: distilled water, which is 1: 4. Research variations were corrosive media (0.1 M H2SO4), inhibitor concentrations (0, 2 gr/L) and immersion time (16, 32 and 48 hours). The method used is the weight loss method. The lowest corrosion rate in 0.1M H2SO4 solution is a concentration of 2 gr/L and a 48 hour immersion time of 20,686 mpy. The highest inhibitor efficiency in 0.1M H2SO4 solution concentration of 2 gr/L and time immersion for 48 hours amounted to 85.48%. It can be concluded that more inhibitors on corrosive media are able to produce low corrosion rates with high inhibition efficiency.Keywords: corrosion rate, inhibition efficiency, inhibitor, pineapple leaf
Pelepasan Doxorubicin (DOX) Dari Hidroksiapatit (HA) Dengan Variasi Nilai pH Dan Rasio Dox-Ha / Phosphat Buffer Saline (PBS) Nursyaniati Nursyaniati; Ahmad Fadli; Rozanna Sri Irianty
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Hydroxyapatite was a material that could be used as drug delivery in cancer by doxorubicin adsorbed on to hydroxyapatities surface. The purpose of this research were to study the effect of variation of pH and ratio DOX-HA : PBS on speed release. HA was suspended in 10 ml of DOX (100 ppm) strirred using a magnetic stirrer with speed 250 rpm at temperature 37ºC for 24 hours. After that it filtered at vacuum pressure for 24 hours. The release of DOX from 270 mg HA powder were soaked in 350 ml of solution PBS (pH 5,6 dan 7,4). The samples were taken every two hours until 120 hours. The concentration of DOX’s released were analyzed by UV-Vis. Furthermore, the DOX-HA powder were characterized with FTIR. There was HA and DOX function group which meant, there were any DOX’s adsorbed and released from HA used powder. If higher pH and more HA powder were used, would effect the released of DOX were more effective. The released in the first 40 hours of DOX concentration released in PBS was maintained at 1,25 and 6,92 ppm for each pH 7,4 and 5,6. While for mass HA variations maintained at 0,625; 3,541; 4,508; and 4,958 ppm for each 0,2; 0,3; 0,4 dan 0,5 gram.Keywords : doxorubicin, drug delivery, hydroxyapatite, phosphat buffered saline, release.
Pengaruh Suhu Pembakaran Dan Konsentrasi Grafena Terhadap Karakteristik Batu Bata Suci Afrianti; Amun Amri; Rozanna Sri Irianty
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

This research aims to produce bricks by adding few layer graphene (FLG) and studies the effects of firing temperature and graphene concentration on the characteristics of the produced bricks. The produced bricks were tested their compressive strength, porosity, morphology using the scannning Electron Microscope (SEM), X-ray diffraction (XRD) analysis and fourier transform infrared (FTIR). The brick was made by adding the few layer graphene to the clay, then mixed them and casted in size (5x5x5) cm3. The samples then dried at room temperature for a week, and fired in furnace for 1 hour at the temperature variation of 600 °C, 800 ºC, and 1000 °C with graphene concentration variations of 10 mg/ml, 20 mg/ml and 30 mg/ml. The results showed that the highest compressive strength (9 MPa) and lowest porosity (6.1%) was exhibited by brick synthesized using graphene concentration of 30 mg/ml and the firing temperature of 1000°C. The Scannning Electron Microscope (SEM) analysis results showed that the addition of graphene reduced the porosity of the brick. The X-ray diffraction (XRD) analysis results showed that a diffraction peak of few layer graphene at 25.41º and the graphene did not influenced the crystal structure of the brick. This research showed that the increase in firing temperature and concentration of graphene made the structure of the brick increasingly dense. The few layer graphene could improve mechanical strength of the brick by reduce the stress concentration and prevent the development of the cracks.Keywords : bricks, concentration, compressive strength, few layer graphene, firing, graphene, porosity
Pengaruh Kombinasi Proses Pretreatment (Koagulasi-Flokulasi) Dan Membran Reverse Osmosis Untuk Pengolahan Air Payau Sastra Silvester Ginting; Jhon Armedi Pinem; Rozanna Sri Irianty
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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Abstract

In general, Riau coastal communities difficult to get clean water because the water resources in the coastal areas of brackish water is not to be used for everyday life. Therefore, the necessary technology for processing brackish water into clean water. This research aims to determine the performance of the process of coagulation-flocculation and reverse osmosis membrane on processing brackish water into clean water. Reverse osmosis membrane used is a type of spiral wound measuring 0,0001 μm and coagulant used PAC coagulant. In this study, the variable used is the concentration of PAC coagulant and reverse osmosis membrane operating pressure. Experiment result obtained the optimum condition of PAC coagulant concentration is 150 mg/L, which PAC can be designated turbidity up to 88.46% and 91.84% hardness. At a pressure of 8 bar, permeate flux preceded by coagulation-flocculation of 25.81 L/m2.jam. Rejection coefficient at a pressure of 8 bar brackish water after coagulation-flocculation had 98.72% of TDS; 96.99% of turbidity; 97.62% of organic substances; 96.37% of hardness and 92.4% chloride.Keywords: brackish water, coagulation-flocculation, reverse osmosis membranes.
PENGARUH PERBANDINGAN PELARUT ETANOL-AIR TERHADAP KADAR TANIN PADA SOKLETASI DAUN GAMBIR (Uncaria gambir Roxb) Rozanna Sri Irianty; Silvia Reni Yenti
Jurnal Sagu Vol 13, No 1 (2014)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1500.112 KB) | DOI: 10.31258/sagu.v13i1.2129

Abstract

The sale value is measured from tanin levels. Gambier that was produced by society by soaking with waterlevels tanin 37.25 ppm. Sokletasi extraction method give extracts yield higher because of the warming isexpected to improve the solubility of the extract so that obtained extract higher. Tannins are a class ofcompounds which belong to the class of polyphenols that can be found in almost all types of geen plants. Thisstudy did sokletasi gambier leaves with water ethanol solvent composition variation 1;1, 1;2, 1;4 to obtainan extract gambier with tanin highest levels. Treatment includes draining the leaves of gambier , ginding,sifting, sokletasi and evaporation. Subsequently, 5 ml of the filtrate of yield was added FeCl3 to qualitativeanalysis, the rest is evaporated to obtain gambier extract and for quantitative analysis using UV-visspectrophotometer. The results yield the largest gambier leaves extract on ethanol-water 1:2 at 63.7% andthe highest levels of tannins in ethanol-water 1:4 solvent at 94.75 ppm.Key words: gambier leaves, sokletasi, tannins.
Optimalisasi Produksi Sari Kedelai Sehat dalam Upaya Pembinaan Ibu Rumah Tangga di Desa Kualu, Kecamatan Tambang, Kabupaten Kampar: Optimization of the Soybeans Milk Production in the Purpose of Housewives Empowerment in Kualu Village, Tambang District, Kampar Regency Anisa Mutamima; Nurfatihayati Nurfatihayati; Panca Setia Utama; Edy Saputra; Rozanna Sri Irianty; Feblil Huda
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 7 No. 6 (2022): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v7i6.3991

Abstract

Mutiara Ayu is a Micro, Small, and Medium Enterprise (MSME) which was founded by a group of housewives in Mutiara Kualu 8 Housing, Kualu Village, Tambang District, Kampar Regency, which produces Healthy Soybean Extract. Since its establishment in November 2020, MSME Mutiara Ayu has been experiencing various problems in running its business. The University of Riau Abdimas team, in partnership with MSME Mutiara Ayu, provided assistance to solve the problems being faced in the form of increasing knowledge and skills to improve product quality and quantity. The community partnership scheme service program was carried out for two months, namely July – August 2022, involving Real Work Lecture (Kukerta) students. This program was carried out in several stages of implementation, namely: (1) The preparation stage includes coordination with partner MSMEs, analysis of business conditions, recruitment, briefing with the community service team and students, coordination with various related parties, identification of needs, and analysis of instruments, (2) The implementation phase includes the provision of instruments and training, technical guidance, and assistance. (3) The monitoring and evaluation phase includes coordination with partner MSMEs, village parties, and Kukerta students. The results achieved in the Kukerta-integrated Abdimas program are an increase in product quality and quantity as well as an increase in the knowledge and skills of MSME Partners related to production and business management, which is expected to increase Mutiara Ayu's MSME income in the future.
Ekstrak Daun Bambu Tali (Gigantochloa Apus) Sebagai Green Inhibitor Terhadap Laju Korosi Baja Karbon Dalam Media HCL Abdullah Agung Hayyuka; Komalasari Komalasari; Rozanna Sri Irianty
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Corrosion is a decrease in the quality of a metal due to an electrochemical reaction between the metal and its environment. The use of inhibitors is the right way to protect the internal partsof metal pipes from corrosion. Gigantochloa apus leaves extract can be used as a natural inhibitor. This research aims to characterize the results of Gigantochloa apus leaves extract, determine the rate of corrosion in carbon steel with the addition of inhibitors from Gigantochloa apus leaves extract, and determine the variables that affect the corrosion rate.The extraction method used is soxhletation with an ethanol:distilled water ratio of 1:4. The variables used in the form of 0.5M, 1.0M, 1.5M HCl media variations and immersion time for 24, 32, 40 hours with inhibitors concentration of 2 g/L and weight loss method in carbon steel. The results showed that Gigantochloa apus leaves extract contained tannin compounds (phenolic OH groups), namely in waves 3234.76 and 3350.50 cm-1 as much 17.54 mg/g. The best corrosion rate inhibitors on carbon steel are 17.65 mpy at corrosive media HCl 1M and immersion time 20.69 hours. Corrosion rate test on carbon steel showed that the influential variable was immersion time, concentration of corrosive media and inhibitors concentration.Keywords: central composite design, corrosion rate, gigantochloa apus leaves, inhibitors
Pengolahan Burung Puyuh Presto sebagai Alternatif Sumber Gizi Masyarakat Desa Batu Belah Kecamatan Kampar Kabupaten Kampar Provinsi Riau Yelmida Azis; Idral Amri; Nurfatihayati Nurfatihayati; Cory Dian Al’farisi; Panca Setia Utama; Rozanna Sri Irianty; Muhammad Ichwan Pradana; Adam Rafif Aldori
Jurnal Abdi Masyarakat Indonesia Vol 4 No 2 (2024): JAMSI - Maret 2024
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jamsi.1031

Abstract

Daging burung puyuh merupakan sumber protein hewani yang dibutuhkan oleh manusia. Harganya yang relatif murah dapat menjadi alternatif sumber gizi bagi masyarakat. Daging burung puyuh yang tipis dan alot menyebabkan sumber protein ini kurang diminati di masyarakat. Penyuluhan dan pelatihan tentang pengolahan burung puyuh presto bagi msyarakat Desa Batu Belah dilakukan agar masyarakat dapat mengkonsumsi daging puyuh dengan nikmat tanpa rasa alot. Proses pengolahan dilakukan dengan memasak daging burung puyuh yang telah dilengkapi dengan bumbu ungkep dalam panci presto selama 20 menit. Selanjutnya setelah uap panas daging burung puyuh presto tidak ada lagi, daging puyuh digoreng dan dapat dimakan. Tujuan kegiatan pengabdian ini dapat dicapai dengan baik berdasarkan ketertarikan masyarakat terhadap topik pengolahan burung puyuh presto sebesar 92% peserta dan dapat meningkatkan pengetahuan 75% peserta yang belum mengetahui.
Co-Authors Abdullah Agung Hayyuka Adam Rafif Aldori Ahmad Fadli Al'farisi, Cory Dian Alfarisi, Cory Dian Amun Amri Bahruddin Chairul Chandra Marzuki Nababan Damanik, Gery Andreas Desi Heltina Fachry Abda El Rahman Fajril Akbar Feblil Huda Hamzah, Nirwana Hendri, Yola Bertilsya Hery Fiza Simarmata Hidayat, Muhammad Ariful Idral Amri Jhon Armedi Pinem Kartono , Khairat Komalasari Komalasari M. Iwan Fermi Manalu, Bonita Restana Maria Peratenta Sembiring Michael Hutapea Muhammad Ichwan Pradana Mutamima, Anisa Nila Sari Siregar Nur Asia Nurfatihayati Nursyaniati Nursyaniati Nurwijayanti Rahmat Ilham Rani Yuliantari Riris Verawati Ryan Tito Sanredina Sanredina Sastra Silvester Ginting Silvia Reni Yenti Simbolon, Kristin Madelin Sri Rezeki Muria Suci Afrianti Sudung Sugiarto Siallagan Suhendri Suhendri Syamsu Herman Utama, Panca Setia Vandhe Melsa Sembiring Vany Silvia Viona Aulia Rahmi Winarno Winarno Yani, Oktavia Dewa Yelmida Azis Yolanda, Yogi Zuchra Helwani Zuchra Helwani, Zuchra Zulfansyah Zultiniar Zultiniar Zultiniar, Zultiniar Zuqni Meldha