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All Journal Jurnal Sains dan Seni ITS IPTEK Journal of Proceedings Series Jurnal Kimia Riset Journal of Research and Technology Akta Kimia Indonesia Jurnal Abdi: Media Pengabdian Kepada Masyarakat Bubungan Tinggi: Jurnal Pengabdian Masyarakat Jurnal Layanan Masyarakat (Journal of Public Service) Journal Pharmasci (Journal of Pharmacy and Science) Journal of Science and Social Development
Qurrota A’yuni
Departemen Kimia, Fakultas Sains Dan Teknologi, Universitas Airlangga
Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Medicine & Pharmacology Social Sciences Other

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TRANSESTERIFIKASI MINYAK DEDAK PADI SECARA IN-SITU DENGAN BANTUAN GELOMBANG MIKRO Rahkadima, Yulia Tri; A’yuni, Qurrota
Journal of Research and Technology Vol 3, No 2 (2017)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (238.489 KB) | DOI: 10.5281/zenodo.2581815

Abstract

Rice bran as rice milling waste is very promising to be used as raw material of oil producer such as biodiesel oil. The production process with the assistant of microwaves has been studied in this research. The production process was carried out in-situ where the extraction process of rice bran oil and the biodiesel formation reaction occur simultaneously in microwave radiation. Rice bran was obtained from Lamongan area with IR 64 type. The reaction was carried out in microwaves that had been modified by variation of operating conditions including reaction times (10, 30 and 50 min) and weight ratio of rice bran to methanol (1:4, 1:8, 1:12, 1:16 and 1:20). The results obtained are then analyzed by product yield and free fatty acid content. The optimum condition is obtained when the highest yield of the product with the lowest free fatty acid. The results showed that the optimum condition was obtained at reaction time of 30 minutes with the ratio of rice bran: methanol at 1:12.
ISOLASI FITOSTEROL DARI BAWANG MERAH (Allium cepa L.) Aziz, A. Musonnifin; Syahriyah, Farikha Alfi; Ulumuddin, Ahmad Ihya'; A'yuni, Qurrota
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (457.225 KB)

Abstract

Shallot is one of the kitchen spices that is often used by the community. Shallot contains several useful compounds and one of them is phytosterol. Along with the development of science and technology, phytosterol can be used to reduce blood cholesterol levels and prevent heart disease, so it is very beneficial for human health. In this study, phytosterol compounds were identified and isolated. The dried onion is then pureed and sifted to 100 mesh. The sieved powder is then extracted by reflux extraction method within 6 hours. The results of the extract were then isolated by column chromatography and identified by thin layer chromatography (TLC). The TLC test uses -sitosterol as a standard and anisaldehyde reagent as a stain appearance. The TLC plate which had stained appearance was then analyzed using the TLC Scanner method. The results of the TLC test showed that the extract of positive red onion was purple and contained fitosterol. The results of the TLC Scanner also show that the peak and spectrum of the samples are the same as the standard -sitosterol and positively contain fitosterol.
Penentuan Kadar Asam Lemak Bebas Dan Kadar Air Pada Minyak Goreng Yang Digunakan Oleh Pedagang Gorengan Di Jalan Manyar Sabrangan, Mulyorejo, Surabaya Ulfindrayani, Ika Fitri; A’yuni, Qurrota
Journal of Pharmacy and Science Vol. 3 No. 2 (2018): Journal of Pharmacy and Science
Publisher : Akademi Farmasi Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53342/pharmasci.v3i2.111

Abstract

ABSTRAK Kebutuhan minyak goreng sawit di Indonesia terus meningkat dari tahun ke tahun. Kebutuhan terbesar didominasi oleh penggunaan minyak goreng sawit sebagai media untuk menggoreng makanan yang salah satunya yaitu jajanan goreng (gorengan). Mayoritas pedagang gorengan tidak memperhatikan kualitas dari minyak goreng yang digunakan. Banyak pedagang gorengan membeli minyak goreng bekas (jelantah) demi mendapatkan keuntungan yang besar. Pada minyak jelantah mengandung asam lemak bebas akibat pemanasan berkala yang berbahaya bagi tubuh. Oleh karena itu, pada penelitian ini dilakukan pengujian kualitas minyak goreng melalui dua parameter yaitu kadar asam lemak bebas dan kadar air. Hal ini bertujuan untuk mengetahui kualitas minyak goreng yang digunakan oleh para pedagang gorengan. Sampel minyak goreng didapatkan dari pedagang gorengan di sepanjang Jalan Manyar Sabrangan, Mulyorejo, Surabaya. Terdapat 7 pedagang gorengan yang menjual gorengannya dengan harga sekitar Rp. 1.000 – Rp 2.000. Metode yang digunakan yaitu metode titrasi alkalimetri dan metode gravimeteri. Hasil analisa kadar asam lemak bebas dan kadar air menunjukkan bahwa dari 7 sampel terdapat 4 sampel minyak goreng yang tidak layak dikonsumsi karena tidak sesuai dengan syarat mutu minyak goreng SNI 01-3741-2002. Kata kunci: Asam Lemak Bebas, Kadar Air, Minyak Goreng, Pedagang Gorengan. ABSTRACT The requirement of palm cooking oil in Indonesia increase from year to year. It was dominated by the use of palm cooking oil as a medium to fry. Fried food on street seller was one of foods that need oil in frying process. Many street fried food seller did not pay attention to the quality of cooking oil that used to fry. Waste cooking oil was the good choice for street fried food seller in order to get big profits. Waste cooking oil contains of free fatty acids due to periodic warming that is harmful to the body. It was important for us to know the quality of cooking oil which we used. Therefore, in this research, we did test the quality of cooking oil which used street fried food seller. Free fatty acid and water content were two parameters that can describe the quality of cooking oil. The samples of cooking oil were obtained from street fried food seller along Jalan Manyar Sabrangan, Mulyorejo, Surabaya. There are 7 street seller that selling fried food with price of about Rp. 1.000 - Rp 2.000. Alkalimetry titration and gravimetery method were used to determine free fatty acid and water content of samples. The result showed there are 4 samples of cooking oil that was not worthy to be consumed because not in accordance with requirement of cooking oil quality of SNI 01-3741-2002. Key Words: Free Fatty Acid, Water Content, Cooking Oil, Street Fried Food Seller.
Sintesis Sol-Gel dan Karakterisasi Struktur Padatan FeF3 dengan Difraksi Sinar-X A’yuni, Qurrota; Dhaniswara, Trisna Kumala
Journal of Pharmacy and Science Vol. 4 No. 1 (2019): Journal of Pharmacy and Science
Publisher : Akademi Farmasi Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53342/pharmasci.v4i1.127

Abstract

ABSTRAKMaterial FeF3 dapat diaplikasikan dalam berbagai bidang diantaranya sebagai material katoda untuk baterai ion litium dan katalis heterogen pada beberapa reaksi yang melibatkan sisi asam. Sintesis FeF3 dapat dilakukan melalui beberapa cara, salah satunya dengan metode sol-gel. Di dalam proses sol-gel adanya agen gelasi dapat mengontrol porositas dan sifat keasaman katalis. Pada penelitian ini dipilih agen gelasi dari senyawa alkohol yaitu metanol dan etanol. Masing-masing padatan yang telah disintesis kemudian dikarakterisasi struktur padatannya dengan difraksi sinar-X. Hasil penelitian menunjukkan bahwa padatan FeF3 telah berhasil disintesis melalui metode sol gel dengan agen gelasi yang berbeda yaitu metanol dan etanol yang masing-masing dituliskan sebagai FeF3(me) dan FeF3(et). Karakterisasi struktur padatan FeF3 menggunakan difraksi sinar-X menghasilkan difraktogram yang sesuai dengan PDF No. 85-0481 dan data ICSD kode 016671 yang memilikistruktur rhombohedral dengan space group R-3cR dan panjang kisi kristal sebesar a = b = c = 5,362 Å dengan sudut α = β = γ = 57,99°. Struktur kristal FeF3 disusun oleh ion Fe3+ dengan jari-jari 0,384 Å dan ion F- dengan jari-jari 0,798 Å dengan tipe ikatan ionik. Rasio besarnya kristalinitas FeF3(et) dibandingkan dengan kristalinitasFeF3(me) sebesar 5:4.Kata kunci: FeF3, sintesis sol-gel, difraksi sinar-X, struktur padatan. ABSTRACTFeF3 material can be applied in various fields including as cathode material for lithium ion batteries and heterogeneous catalysts in some reactions involving the acid side. Synthesis of FeF3 can be done in several ways, one of them is the sol-gel method. In the sol-gel process the gelation agent can control the porosity and acidity of the catalyst. In this study, gelation agents were selected from alcohol compounds, namely methanol and ethanol. The solids that has been synthesized was then solid structure characterized by X-ray diffraction. The results showed that FeF3 solids were successfully synthesized through the sol-gel method with different gelation agents, namely methanol and ethanol, each of which was written as FeF3(me) and FeF3(et). Characterization of the solid structure of FeF3 using X-ray diffraction produces a diffractogram according to the PDF No. 85-0481 and ICSD data code 016671 which has a rhombohedral structure with space group R-3cR andcrystal lattice length of a = b = c = 5.362 Å with an angle α = β = γ = 57.99°. The crystal structure of FeF3 is composed by Fe3+ ions with radius 0.384 Å and F- ions with radius 0.798 Å with ionic bond types. The ratio of the crystallinity of FeF3(et) compared to the crystallinity of FeF3(me) is 5:4.Keywords: FeF3, sol-gel synthesis, X-ray diffraction, solid structur.
Impregnasi dan Karakterisasi Struktur Padatan Co3O4 pada Pendukung CaF2 Qurrota A’yuni; Irmina Kris Murwani
Jurnal Sains dan Seni ITS Vol 1, No 1 (2012): Jurnal Sains dan Seni ITS (ISSN 2301-928X)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.298 KB) | DOI: 10.12962/j23373520.v1i1.1432

Abstract

Pada penelitian ini dilakukan sintesis padatan berpendukung Co3O4/CaF2 melalui metode impregnasi dengan variasi loading Co pada CaF2 adalah 2,5; 5; 7,5; 10 dan 15% w/w. Padatan hasil sintesis dikarakterisasi strukturnya menggunakan difraktometer sinar-X (XRD). Struktur padatan CaF2 adalah sistem kubik. Struktur kobalt oksida yang muncul pada difraktogram padatan berpendukung sesuai dengan PDF 01-1152 yaitu Co3O4 heksagonal. Seiring dengan meningkatnya loading Co3O4 pada CaF2 maka intensitas puncak-puncak khas Co3O4 semakin tinggi misalnya pada 2q 36,87°, hal ini merupakan kebalikan dari intensitas CaF2 yang semakin menurun seperti yang terlihat pada 2q 46,97°.
Glycerol Acetylation Using Magnesium Fluoride Catalyst to Produced DAG and TAG Qurrota A’yuni; Syafsir Akhlus; Harsasi Setyawati; Irmina Kris Murwani
IPTEK Journal of Proceedings Series No 4 (2017): 2nd International Seminar on Chemistry 2016
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (734.884 KB) | DOI: 10.12962/j23546026.y2017i4.3076

Abstract

Glycerol acetylation with acetic acid using magnesium fluoride catalyst have been investigated. Magnesium fluoride catalyst was prepared by sol-gel method with ethanol as gelating agent. The glycerol acetylation produced monoacetylglyceride (MAG), diacetylglyceride (DAG) and triacetylglyceride (TAG). The catalytic reaction carried out by thermal methods reflux under ambient conditions. The influence of reaction conditions such as the reaction time on the product distribution was investigated. The optimum of glycerol conversion was achieved at 5 hours of reaction time by 78.34% with selectivity of 30, 62 and 8% for MAG, DAG and TAG respectively. The reaction route over magnesium fluorides was observed by product as reactants, gradually. The results showed that the acetylation reaction of glycerol occurs via a parallel route to the first, followed by the consecutive route to produce DAG and TAG.
PRODUKSI BIODIESEL DARI DEDAK PADI SECARA IN SITU DENGAN TEKNOLOGI MICROWAVE Yulia Tri Rahkadima; Qurrota A'yuni
Jurnal Kimia Riset Vol. 4 No. 2 (2019): Desember
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v4i2.16047

Abstract

AbstrakProses produksi biodiesel dari dedak padi dengan memanfaatkan microwave secara in situ telah berhasil dilakukan. Pengaruh jumlah metanol dan waktu reaksi terhadap kandungan FAMEs dalam produk dipelajari dalam penelitian ini. Dedak padi , metanol dan katalis basa berupa NaOH 0.6 w% dimasukkan ke dalam labu alas datar dilengkapi dengan kondensor dan dimasukkan ke dalam reaktor microwave yang telah dimodifikasi.  Produk reaksi yang berupa campuran FAMEs, gliserol, reaktan yang tidak bereaksi dan komponen lainnya kemudian dicuci menggunakan n- heksana dan dilanjut dilakukan proses distilasi. Hasil penelitian menunjukan bahwa dengan menggunakan reaktor microwave, kandungan FAMEs lebih tinggi diperoleh dengan waktu reaksi yang lebih singkat. Gelombang mikro berhasil mempercepat terjadinya reaksi transesterifikasi. Kandungan FAMEs tertinggi yaitu 6.2036 % diperoleh pada waktu reaksi 10 menit, metanol 60 ml dan suhu reaksi 60oC.  Kata kunci : Biodiesel, In situ, Microwave, Dedak padi AbstractThe process of biodiesel production from rice bran using in situ microwaves has been successfully carried out. The effect of the amount of methanol and reaction time on the FAMEs content in the product was studied in this study. Rice bran, methanol and alkaline catalyst in the form of 0.6 w% NaOH are put into a flat bottom flask equipped with a condenser and put into a modified microwave reactor. The reaction product in the form of a mixture of FAMEs, glycerol, unreacted reactants and other components is then washed using n-hexane and contuining with the distillation process. The results showed that by using a microwave reactor, a higher FAMEs content was obtained with a shorter reaction time. Microwaves successfully accelerate the transesterification reaction. The highest FAMEs content of 6.2036% was obtained at a reaction time of 10 minutes, methanol 60 ml and reaction temperature 60oC.Keywords: Biodiesel, In situ, Microwave, Rice bran
Penggunaan Pektin Kulit Jeruk Manis (Citrus sinesis) sebagai Absorben untuk Mengurangi Kadar Ion Kromium (VI) pada Sampel Air Sungai Jagir Zjahra Vianita Nugraheni; Wahyu Prasetyo Utomo; Qurrota A'yuni; Nur Azizah Agustina; Januar Kholik; Chandra Puspita
Akta Kimia Indonesia Vol 3, No 1 (2018)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (676.825 KB) | DOI: 10.12962/j25493736.v3i1.3388

Abstract

Telah dilakukan penelitian mengenai kemampuan pektin kulit jeruk manis (Citrus sinensis) sebagai biosorben logam Cr (VI) pada sampel air sungai Jagir. Penelitian ini dilakukan untuk mengetahui daya serap optimum bubuk pektin sebagai biosorben pada logam Cr(VI) menggunakan AAS (Atomic Absorption Spectroscopy). Kadar Cr(VI) pada sampel sungai air Jagir sebesar 0,2532 ppm dengan suhu air 31°C dan pH 6,5. Setelah dilakukan absorbsi  menggunakan biosorben bubuk pektin didapat daya serap untuk penyerapan logam Cr(VI) adalah 98.06% dengan variasi massa pektin sebesar 1,5 gram dan waktu kontak selama  3 jam.
Desain dan Karakteristik Permukaan Kobalt Oksida pada Pendukung Katalis Qurrota A'yuni
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
Publisher : 2477 - 6165

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

Abstract

Material surface characteristics are the main criteria to be considered in catalyst design. The surface area and catalyst porosity determine activity and selectivity in catalytic reactions. In this research, synthesis of cobalt oxide, calcium fluoride and calcium fluoride cobalt oxide has been done. Characterization of solid sufaces is analyzed by using Nitrogen Gas Adsorption Method. The surface area of solids is analyzed by using SBET and SBJH Methods. Identification of mesoporous both qualitative and quantitative is analyzed by using BJH Method. The result of synthetic solid shows the pattern of isotherm adsorption type IV which is typical for mesoporous material. Surface measurements show the presence of cobalt oxide on a catalyst support marked by decreasing surface area, pore size and pore volume of catalyst support material.
Pelatihan Pembuatan Hand Sanitizer Menuju Desa Cerdas Kesehatan Di Desa Cangkir, Kecamatan Driyorejo, Kabupaten Gresik Qurrota A'yuni; Alfa Akustia Widati; Harsasi Setyawati; Atik Widiyanti; Purkan Purkan; Miratul Khasanah; Tokok Ardiarto; A. Budi Prasetyo; Aning Purwaningsih; Siti Wafiroh; Sri Sumarsih; Rico Ramadhan; Sofijan Hadi; Kariza Makanty; Ahlan Riwahyu Habibi; Aulianitha Salsabella
Bubungan Tinggi: Jurnal Pengabdian Masyarakat Vol 4, No 2 (2022)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/btjpm.v4i2.5253

Abstract

Hand sanitizer merupakan cairan atau gel pembersih tangan yang memiliki sifat sebagai antibakteri dalam menghambat hingga membunuh bakteri. Dengan demikian hand sanitizer lebih efektif dalam membasmi kuman. Berdasarkan penelitian The Centers for Disease Control and Prevention (CDC), hand sanitizer dengan kandungan alkohol minimal 60% dapat berfungsi sebagai antibakteri maupun antivirus. Hand sanitizer pernah menjadi barang langka di puncak pandemi pada tahun 2020, karena pembelian yang masif dari masyarakat Indonesia. Langkanya hand sanitizer di beberapa toko dan apotek membuat harganya menjadi mahal. Kegiatan Pengabdian Kepada Masyarakat ini bertujuan untuk meningkatkan pengetahuan akan pentingnya kesehatan dan kemungkinan penyebaran kuman terutama virus dan bakteri serta upaya untuk mengantisipasinya. Tujuan yang lain yaitu untuk meningkatkan keterampilan masyarakat dalam pembuatan hand sanitizer. Rangkaian kegiatan ini diselenggarakan di Desa Cangkir, Kecamatan Driyorejo, Kabupaten Gresik pada Bulan November-Desember 2021 secara luring dengan menerapkan protokol kesehatan dengan peserta Ibu-Ibu PKK dan Kader PKK. Kegiatan ini dilakukan melalui metode pendampingan dan demonstrasi dengan presentasi materi dan praktik langsung. Kegiatan ini memberikan dampak yang positif bagi masyarakat Desa Cangkir dalam menghadapi Pandemi Covid-19 saat ini. Hand sanitizer is a liquid or gel that has antibacterial properties to inhibit and kill bacteria. Thus, hand sanitizer is more effective in eradicating germs. Based on research from The Centers for Disease Control and Prevention (CDC), alcohol-based hand sanitizers that contain at least 60% alcohol can function as both antibacterial and antivirus. Hand sanitizer was once a scarce item at the height of the pandemic in 2020, due to massive purchases from the Indonesian people. The scarcity of hand sanitizers in some shops and pharmacies makes the price expensive. This Community Service activity aims to increase knowledge of the importance of health and the possibility of spreading germs, especially viruses and bacteria, and efforts to anticipate them. Another aim is to improve community skills in making hand sanitizers. This series of activities were held in Cangkir Village, Driyorejo District, Gresik Regency in November-December 2021 via offline by implementing health protocols with PKK women and PKK Cadres as participants. This activity is carried out through mentoring and demonstration methods with presentations and hands-on practice. This activity has a positive impact on the Cangkir Village community in dealing with the current Covid-19 Pandemic. 
Co-Authors A. Budi Prasetyo AFAF BAKTIR Ahlan Riwahyu Habibi Ahmadi Jaya Permana Alfa Akustia Widati Anggun Fitria Laila Ningsih Aning Purwaningsih Anis Febriati Ardhana Rahmayanti Atik Widiyanti Aulianitha Salsabella Aziz, Ahmad Musonnifin Budi Prasetyo, Antonius Chandra Puspita Diana Merna Eksan Ar Rasyid Fatiha Khairunnisa Ganden Supriyanto Hamizah Haula' Handoko Darmokoesoemo Harsasi Setyawati Hartati Hartati Hartati Hartati Hwei Voon, Lee Ika Fitri Ulfindrayani Januar Kholik Kariza Makanty Kautsar Ul Haq Kris Murwani, Irmina Laily Noer Hamidah Lita Nur Azizah Medya Ayunda Fitri Miratul Khasanah Mochamad Zakki Fahmi Mulyadi Tanjung Ni Nyoman Tri Puspaningsih Pratiwi Pudjiastuti Purkan Purkan Purkan Purkan, Purkan Purwaningsih, Aning Rico Ramadhan, Rico Siti Wafiroh Sofijan Hadi Sonhaji Arif Sri Sumarsih Syafsir Akhlus Syahriyah, Farikha Alfi Tokok Adiarto Tokok Ardiarto Trisna Kumala Dhaniswara Ulumuddin, Ahmad Ihya' Wahyu Prasetyo Utomo Yanuar Risah Prayogi Yanuardi Raharjo, Yanuardi Yulia Tri Rahkadima Zjahra Vianita Nugraheni Zulifah Chikmawati