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All Journal Jurnal IPTEK Jurnal Kimia Riset Journal of Research and Technology Jurnal Chemurgy J-ADIMAS (Jurnal Pengabdian kepada Masyarakat) Indonesian Community Journal Greensphere: Journal of Environmental Chemistry Jurnal Teknik Kimia dan Lingkungan Nusantara Community Empowerment Review Journal of Science and Social Development
Medya Ayunda Fitri
Universitas Nahdlatul Ulama Sidoarjo
Religion 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 Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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The effect of pretreatment process on lignocellulosic materials with a combination of microwaves and alkaline solvents on solid products. Fitri, Medya Ayunda; Rahkadima, Yulia Tri
Jurnal IPTEK Vol 25, No 2 (2021)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2021.v25i2.2355

Abstract

The pretreatment process is important in treating lignocellulosic-rich biomass such as sugarcane bagasse. The lignocellulosic structure is strong, and the proportion of crystals is high, complicating the fermentation process. Still, it needs to be converted to a more amorphous structure for easy access to fermenting enzymes. The pretreatment process is carried out with alkaline solvents and microwaves in this study. The process begins by standardizing the size of the bagasse powder used. Sugarcane bagasse powder and NaOH alkaline solvent were mixed in a three-necked round-bottom flask. The reactor used in this study was a modified domestic microwave equipped with a temperature controller and condenser. The results showed that this modification was significant to reduce the weight of the residual solid product compared to the initial weight of the raw material. Process variables such as reaction time and solvent concentration significantly affect the cellulose content of solid products. However, hemicellulose content showed different results. The results of the XRD analysis showed that the crystallization index of the effect decreased with increasing pretreatment time. Pretreatment with microwaves and alkaline solvents was successful with satisfactory structural changes in the cellulosic solid.
SIMULASI PENGARUH LAJU ALIR LARUTAN NIRA TERHADAP DISTRIBUSI TEMPERATUR PADA FALLING FILM EVAPORATOR Fitri, Medya Ayunda
Journal of Research and Technology Vol. 6 No. 1 (2020): JRT Volume 6 No 1 Jun 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i1.144

Abstract

Cane juice is the main raw material in sugar factories. The processing of cane juice to produce the highest quality sugar must be through the proper evaporation process. If the evaporation temperature is too high, the cane juice can be damaged and this will affect the quality of sugar produced. The type of evaporator that is often used to reduce water content in food is falling film evaporator. This study obtained to determine the effect of the flow rate of cane juiceon the temperature distribution at the interface and wall. This research was conducted using Matlab Software and the Runge-Kutta Method. The research variables used were the flow rate of 154, 243, and 301 l/hr and the air flow rate of 4, 8 and 10 m3/hr. The results showed that the smaller flow rate of the solution, the smaller temperature of the solution at the interface with the same position. The temperature distribution on the wall has increased at the beginning of evaporator operation, but then decreased due to evaporation.
PENGARUH MICROWAVE HEATING TERHADAP KUALITAS MINYAK DEDAK PADI Yulia Tri Rahkadima; Medya Ayunda Fitri
Journal of Research and Technology Vol. 4 No. 2 (2018): JRT Volume 4 No 2 Des 2018
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v4i2.200

Abstract

Rice bran oil as an alternative edible oil is promising to be developed. However, the presence of lipaze enzym which hydrolyze actively trigliceride into free fatty acid results rice bran quality can not be controlled and tend to degrade. Stabilization proccesswas needed to overcome this isue. Stabilization with microwave heating has been carried out to study the effect of stabilization toward the quality of rice bran oil. The results showed that the highest percentage of oil mass 7.67% was obtained at mediumpower (power 2), stabilization time 1 minute and the extraction waiting time for 0 week. Meanwhile, the levels of free fatty acids tended to be constant when the proccess was carried out at power 3 (high power) for all stabilization times. Microwave heating was effective enough to reduce the lipase enzyme in rice bran so as free fatty acid content did not increase significantly. Keywords: Microwave Heating, Rice Bran Oil, Stabilization.
PENGARUH PERLAKUAN AWAL SAMPAH ORGANIK TERHADAP PRODUKSI BIOGAS SECARA ANAEROBIC DIGESTION Dhaniswara, Trisna Kumala; Fitri, Medya Ayunda
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.231

Abstract

The biggest problem currently in Indonesia is accumulated and uncontrolled of garbage amount everywhere, especially organic waste. There are also more methods to utilize waste. One of waste utilization is Biogas. Organic content in organic waste can be used as a substart source for anaerobic bacteria. Initial treatment of organic waste in this study used as a variable, namely chopped and blended. This initial treatment was done before it was mixed with other materials, ie cattle dung and water. 200% water was added to the reactor along with other variables. Temperature, pH and biogas volume were observed for 30 days. Initial treatment factor of organic waste as biogas production substrat showed blend treatment with decay, it had higher biogas production than others. Biogas volume was resulted 189.99 cm3 with a composition ratio of 50% cattle dung and 50% organic waste.Keywords: Biogas, Livestock Manure, Organic Waste.
PEMANFAATAN KOTORAN SAPI DAN SAMPAH SAYUR PADA PEMBUATAN BIOGAS DENGAN FERMENTASI SAMPAH SAYURAN Fitri, Medya Ayunda; Dhaniswara, Trisna Kumala
Journal of Research and Technology Vol. 4 No. 1 (2018): JRT Volume 4 No 1 Jun 2018
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v4i1.233

Abstract

Biogas is one solution to the use organic waste (livestock manure and vegetables). The aim of the research was to find out the effectiveness of livestock manure and fermentation of vegetable waste into biogas. This research was carried out using fermented vegetable waste for 10-12 days, then it was chopped and blended. The vegetable waste is then mixed with cow dung and water according to the determined variables. The mixture was put into a brown glass bottle and the bottle mouth was closed with a balloon and deposited for 8 days. Furthermore, the CO2 gas produced wasreleased and start to deposite again for 20-30 days. Trapped methane gas obtained from in the balloon was then stored to measure the produced volume and pH and also the methane gas. The results obtained from the research that is were the best pH obtained from vegetable waste blender fermentation treatment (% water100 and the percentage ofKS: SO was 75:25) was 7 and the largest volume was obtained from fermented chopped vegetable waste treatment (water% 300 and percentage KS: SO was 100: 0) of 78.73 cm3. Keywords: Biogas, Fermentation of Vegetable Waste, Cow Manure.
Nanosilica Extraction from Grumusol Soil Fitri, Medya Ayunda; Syahriyah, Farikha Alfi; Azizah, Zahrotul
Journal of Research and Technology Vol. 9 No. 1 (2023): JRT Volume 9 No 1 Juni 2023
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v9i1.964

Abstract

Grumusol soil is a type of soil that contains significant amounts of silica. Silica content in grumusol soil can reach up to 90%. The aim of this research was to determine the characteristics of silica nanostructures in Grumusol soil. The stages of the research were carried out including the preparation of raw materials, silica extraction, and XRD analysis. The raw material preparation stage is carried out by cleaning the grumusol soil from dirt. The second stage was carried out by synthesizing silica with the base extraction method and followed by acid deposition. The final stage is X-Ray Diffracion (XRD) analysis. The results of the research that has been carried out is the FWHM value of 0.0900 (<0.1) which indicates that the crystals produced have very good crystals with a very regular structure. The crystal size which includes nanosilica is 39.5076-48.6633 nm for 3M NaOH with 1 and 3 hours extraction time and 5M NaOH with 1 hour extraction time
Pelatihan Daur Ulang Sampah Plastik menjadi Kerajinan Tas di Desa Tulangan, Kecamatan Tulangan, Kabupaten Sidoarjo Fitri, Medya Ayunda; Anggraeni, Dini Martha; Arif, Sonhaji; Azizah, Zahrotul; Hakim, Luqman; Yafi, Muhammad Mansur; Fitrianah, Listin
Journal of Science and Social Development Vol. 6 No. 1 (2023): Journal of Science and Social Development
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jossd.v6i1.962

Abstract

Limbah plastik merupakan salah satu permasalahan global yang serius. Hal ini dikarenakan sifat plastik yang sulit terurai di alam. Tujuan dilakukan pelatihan ini adalah untuk memberikan pelatihan kepada warga Desa Tulangan agar menjadi lebih kreatif dan dapat membantu meningkatkan perekonomian warga serta meminimalisir jumlah sampah plastik yang dihasilkan oleh warga Desa Tulangan. Pelatihan dilakukan dengan melakukan pengolahan limbah/sampah plastik menjadi kerajinan tas dengan memanfaatkan limbah plastik yang dihasilkan dari sampah rumah tangga. Pelatihan yang dilakukan menghasilkan produk berupa tas yang memiliki bentuk dan desain yang menarik serta layak untuk dijual.
Edukasi Pemanfaatan Sampah pada Siswa SMA di Sidoarjo: Limbah Serabut Kelapa sebagai Bahan Penguat pada Pembuatan Plastik Biodegradable Fitri, Medya Ayunda; Said, Muhammad Husen; Aditya, Rizky; Azizah, Zahrotul; Fitrianah, Listin; Yafi, Muhammad Mansur; Hakim, Luqman
Journal of Science and Social Development Vol. 7 No. 1 (2024): Journal of Science and Social Development
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jossd.v7i1.1305

Abstract

Waste is one of the causes of environmental problems, especially plastic waste. Therefore, education is carried out regarding knowledge about waste and waste utilization to minimize the accumulation of plastic waste. The aim of this education is so that high school students have environmental awareness and are able to be creative in utilizing surrounding waste to make environmentally friendly products that have high economic value. This education was carried out using a presentation method regarding waste materials and examples of waste utilization, namely coconut fiber waste which has the potential to be used as a strengthening material in the manufacture of biodegradable plastic. The results of the education provided show that there has been an increase in understanding regarding waste and its use on the "sangat mengetahui" indicator of 86.67%.
Co-Authors Abdul Gofur Ahmad Hamdani Muslim Akhmad Nafik Ali Altway Anggraeni, Dini Martha Anggun Fitria Laila Ningsih Anggun Fitria Laila Ningsih Anis Febriati Ardhana Fitrianah Ardhana Rahmayanti Arief Adhiksana Ayu Chandra Kartika Fitri Aziz, Ahmad Musonnifin Bahauddin Alqostolani Carlita, Cindi Erlin Cindi Erlin Carlita Cindy Dwi Cahyani Farikha Alfi Syahriyah Farikha Alfi Syahriyah Farikha Alfi Syahriyah Firmansyah, Mochammad Nizar Intan Eka Wulandari Laily Noer Hamidah Listin Fitrianah Luqman Hakim Luqman Hakim Luqman Hakim Mega Bilqis Suryawantiningtyas Mochamad Hanafi Muhammad Abdul Ghofir Muhammad Mansur Yafi Muhammad Naufal Ilhami Muhammad Yafi Qurrota A’yuni Rahmad Budianto Rina Sri Wulandari Rizky Aditya Said, Muhammad Husen Sari, Altara Dea Kumala Sa’id, Muhammad Husen Siti Syefiana Fatmawati Sonhaji Arif Suhadi Suhadi Suhadi Suhadi Sumiyarsono, Elmi Susianto Susianto Susianto Syahriyah, Farikha Alfi Trisna Kumala Dhaniswara Vini Kumara Lalita Siniwi Vini Kumara Lalita Siniwi Wahyu Wardhana Y. Tri Rahkadima Y. Tri Rahkadima Yulia Tri Rahkadima Zahrotul Azizah