Article Per Year (5 Year)
p-Index From 2021 - 2026
1.503
P-Index
This Author published in this journals
All Journal Indonesian Journal of Halal Research Halal Research Journal Labatila: Jurnal Ilmu Ekonomi Islam Bulletin of Chemical Reaction Engineering & Catalysis Sunan Kalijaga Journal of Physics Analit: Analytical And Environmental Chemistry
Imelda Fajriati
Department of Chemistry, State Islamic University Sunan Kaliaga, Jl. Marsda Adisucipto Yogyakarta 55281
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Physics Other

Published : 12 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 12 Documents
Search

 1   2 
Persepsi Label Halal dan Pemasaran Digital "Nglarisi" dalam Meningkatkan Penjualan pada UMK Gandeng-Gendong Yogyakarta Mariam, Siti; Fajriati, Imelda
LABATILA : Jurnal Ilmu Ekonomi Islam Vol 8 No 01 (2024)
Publisher : Lembaga Penelitian dan Pengembangan Masyarakat IAINU Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33507/lab.v8i01.2001

Abstract

This research aims to analyze and explore the perceptions of Micro and Small Enterprises (UMK) regarding the effectiveness of the halal label factor and "Nglarisi" digital marketing in increasing sales. This research is conclusive research with a qualitative approach, which is based on phenomena in the field. Data was collected through interviews and documentation of MSE actors who are members of the Gandeng-Gendong group. Gandeng-Gendong itself is one of the Yogyakarta City government programs which was formed to reduce and alleviate poverty, as well as to improve community welfare. The research results show that the halal label factor is seen as not being effective in increasing sales for the MSEs in the Gandeng-Gendong group. The majority of buyers do not question whether there is a halal label on the packaging, but it is the attitude of trust towards the seller that is more deeply rooted in the minds of buyers. The digital marketing factor through the "Nglarisi" application is seen as positive by business actors. That means the digital marketing through the "Nglarisi" application is quite effective in increasing sales.
Awareness of Chicken Slaughterhouse Business Actors Towards Halal Products Nafisah, Basmah; Fajriati, Imelda
Halal Research Vol 4 No 1 (2024): February
Publisher : Halal Center ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j22759970.v4i1.1053

Abstract

This study aims to provide an empirical picture of halal awareness of chicken slaughterhouse business actors towards halal certification in Indonesia by understanding halal perceptions and the extent of halal risks, critical points, and critical processes in their chicken slaughterhouses. This study uses a descriptive qualitative approach with field research methods. The research informants were two chicken slaughterhouse business actors: Mr. Wafir from RPA Semerak and Mr. Isa from RPA Master Chick. Data were obtained through interviews and documentation, with qualitative analysis using deductive methods. Planning Behavior Theory (SDG) is used to understand business actors' perceptions of halal certification, focusing on actual behavior, intentions, attitudes, and knowledge. The results showed that RPA Semerak already has awareness of halal production but does not have awareness of the obligation of halal certification, which is caused by the lack of public and business actors' understanding of the critical point and urgency of halal certification. In addition, tipping point activity related to chicken slicing after slaughter has not yet been considered. As for the RPA Master Chick, despite having awareness about halal certification, it still lacks a thorough understanding of knowledge. The results of this research are expected to contribute to increasing the understanding and awareness of chicken slaughterhouse business actors towards halal certification, as well as assisting related parties in designing education and training programs that are in accordance with the needs of the industry.
Analisis Cilok Terkontaminasi Boraks Menggunakan Spektroskopi Fluoresensi Berbasis High Power UV-LED Haryarta, Gusfianang; Rakhmadi, Frida Agung; Fajriati, Imelda
Sunan Kalijaga Journal of Physics Vol. 3 No. 1 (2021): Sunan Kalijaga Journal of Physics
Publisher : Prodi Fisika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/physics.v3i1.2318

Abstract

The analysis research of borax contaminant in cilok using high power UV-LED fluorescence spectroscopy system was successfully done. This study aimed to analyze borax in cilok using a high power UV-LED fluorescence spectroscopy system and to determine its precision and detection limits. The stages of research of borax contaminant in cilok was carried out by preparing tools and materials, sampling, data collection, and data processing. Testing of detection limit was carried out with a variety of borax contaminants of 0% - 40% from 20 grams of cilokandprecisiontestingwasdonebyrepeatingthetestofeachvariation5times. TheresultsshowedthathighpowerUV-LEDfluorescencespectroscopysystemwas used successfully in analyzing cilok contaminated with borax. In addition, the test results showed that the system has precision of 100% and detection limit of2.6%.
ANALISIS TAHU TERKONTAMINASI FORMALIN MENGGUNAKAN SISTEM SPEKTROSKOPI FLUORESENSI BERBASIS HIGH POWER UV-LED Rahmaningrum, Nadia; Rakhmadi, Frida Agung; Fajriati, Imelda
Sunan Kalijaga Journal of Physics Vol. 2 No. 1 (2020): Sunan Kalijaga Journal of Physics
Publisher : Prodi Fisika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/physics.v2i1.2323

Abstract

This research was motivated by the discovery of white tofu preserved using formalin. This study aimed to analyze formalin contaminants in tofu and determine the precision and detection limits of a fluorescence spectroscopy system based on high power UV-LED. This research was conducted in three stages, namely making samples, collecting data, and processing data. The sample was made directly in the tofu factory with the owner and the object used in this study is white tofu which was given a variation of formalin contaminants 0%-50%. Data were collected using a set of fluorescence spectroscopy system based on high power UV-LED that is connected to software LabVIEW and each foreign formalin contaminant test in tofu used five samples with three repetitions for each sample. Data processing to obtain bin values for each a variation of formalin contaminant was carried out using Microsoft Excel, moreover to find a value of precision and a detection limit. Based on the result, a precision test result of 100% and a detection limit of 12.05%.
PENGARUH KOMPOSISI SODIUM LAURYL ETER SULFAT DALAM DETERJEN KAOLIN TERHADAP MIKROORGANISME PADA AIR LIUR ANJING Puspitaningrum, Ria; Fajriati, Imelda
Analit : Analytical and Environmental Chemistry Vol. 7, No. 01 April (2022) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v7i1.2022.p21-34

Abstract

Deterjen tanah merupakan alternatif baru yang digunakan untuk membersihkan benda atau zat yang terkena air liur anjing. Penelitian ini bertujuan untuk mengkaji pengaruh komposisi surfaktan sodium lauryl eter sulfat (SLES) terhadap karakteristik deterjen kaolin dalam menonaktifkan mikroorganisme air liur anjing. Deterjen kaolin dibuat dengan variasi surfaktan SLES 12%, 16% dan 20% (b/b). Produk yang dihasilkan di evaluasi sifat fisika kimianya meliputi uji organoleptis, analisis pH, tegangan permukaan, dan stabilitas busa serta diuji kempampuan antibakterinya. Hasil penelitian menunjukkan bahwa variasi komposisi surfaktan SLES berpengaruh signifikan terhadap tegangan permukaan dan stabilitas busa, namun tidak berpengaruh secara signifikan terhadap analisis pH dan uji organoleptis. Uji organoleptis yang dihasilkan dengan pH rata-rata sebesar 9,125 telah sesuai dengan SNI (06-0475-1996). Analisis stabilitas busa menghasilkan kondisi optimum pada komposisi surfaktan 16% (b/b) sebesar 70,50% dan tegangan permukan menghasilkan kondisi optimum pada komposisi surfaktan 20% sebesar 0,0105 N/m. Deterjen kaolin yang dihasilkan dengan komposisi surfaktan 20% (b/b) memiliki aktivitas antibakteri yang optimum terhadap bakteri Staphylococcus aureus danEnterococcus faecalis sebesar 17,33 mm dan 15 mm, namun tidak memiliki aktivitas antibakteri terhadap bakteri Escherichia coli.
PENENTUAN KUALITAS AIR SALURAN PEMBUANGAN LIMBAH TAHU DI SUNGAI PENGGING BOYOLALI Rahman, Rian Adi Setia; Fajriati, Imelda
Analit : Analytical and Environmental Chemistry Vol. 6, No. 01 April (2021) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v6i1.2021.p1-11

Abstract

Penentuan kualitas air pada Sungai Pengging Boyolali sebagai muara pembuangan limbah tahu telah dilakukan. Penelitian ini bertujuan untuk mengetahui kualitias air Sungai Pengging. Analisis meliputi penentuan suhu air contoh, pH, Total Dissolved Solid (TDS), Disolved Oksigen (DO), Biochemical Oxygen Demand (BOD), dan Chemical Oxygen Demand (COD).  Metode pengambilan sampel menggunakan metode purposive sampling yang dilakukan pada 3 titik (titk 1, titik 2 dan titik 3) dengan mengikuti tata cara sampling dan analisis parameter air mengikuti SNI 06-6989.14-2004 dan SNI 6989.72-2009. Hasil penelitian menunjukkan bahwa contoh air pada pengambilan titik 2 relatif memiliki tingkat pencemaran lebih tinggi daripada 2 titik tempat pengambilan contoh air yang lain. Parameter pencemaran pada titik 2 diindikasikan oleh tingginya temperatur air (29,05-30,1 ˚C), nilai TDS (8,33 – 10,95 mg/L), nilai COD dan BOD (71,5 dan 28,2 mg/L), serta nilai DO paling kecil (0,11 – 0,16 mg/L).http://dx.doi.org/10.23960/aec.v6.i1.2021.p1-11
PENGARUH PENAMBAHAN HIDROGEN PEROKSIDA (H2O2) TERHADAP EFEKTIVITAS FOTODEGRADASI NAPHTHOL MENGGUNAKAN FOTOKATALIS TIO2 Rini, Rika Sulistyo; Fajriati, Imelda; Kiswandono, Agung Abadi
Analit : Analytical and Environmental Chemistry Vol. 4, No. 01 April (2019) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v4i1.2019.p26-40

Abstract

Telah dilakukan penelitian tentang fotodegradasi zat warna naphthol menggunakan fotokatalis TiO2 dengan dan tanpa penambahan H2O2. Penelitian ini dilakukan pada sampel buatan dan sampel limbah batik. Penelitian ini bertujuan untuk mengkaji pengaruh penambahan H2O2 terhadap variasi waktu penyinaran, massa TiO2, konsentrasi H2O2 dan pH terhadap efektivitas fotodegradasi zat warna naphthol menggunakan fotokatalis TiO2. Berdasarkan hasil penelitian H2O2 yang ditambahkan berpengaruh  terhadap fotodegradasi naphthol karena laju reaksi dengan penambahan hidrogen peroksida lebih besar daripada laju reaksi tanpa penambahan hidrogen peroksida. Penyinaran selama 90 menit dengan degradasi sebesar 81,1762%. Massa TiO2 berpengaruh signifikan terhadap fotodegradasi dengan efektivitas fotodegradasi tertinggi dicapai pada massa TiO2 95 mg dengan presentase degradasi 85,4468%. Konsentrasi H2O2 berpengaruh signifikan terhadap fotodegradasi ditunjukkan oleh F hitung = 67,2730 > F tabel = 2,8500. Efektivitas fotodegradasi tertinggi yaitu 39, 8339% dengan konsentrasi H2O2 15%. Pada variasi pH efektivitas fotodegradasi tertinggi pada pH 5 dengan persentase degradasi 99,5708%. Pada aplikasi limbah batik, efektifitas degradasi zat warna tertinggi yaitu 91,2186% pada saat ditambahkan TiO2 saja dan untuk persentase penurunan COD tertinggi pada saat ditambahkan TiO2 dan H2O2 yaitu 76,6645%. Konsentrasi H2O2 berpengaruh signifikan terhadap degradasi zat warna pada sampel limbah karena F hitung = 156,375 > F tabel = 5,1400.doi: http://dx.doi.org/10.23960/aec.v4.i1.2019.p26-40  
ANALISIS KADAR KAFEIN KOPI ARABIKA (Coffea arabica L.) PADA VARIASI TEMPERATUR SANGRAI SECARA SPEKTROFOTOMETRI ULTRA VIOLET Fajriana, Nur Hasani; Fajriati, Imelda
Analit : Analytical and Environmental Chemistry Vol. 3, No. 02 October (2018) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v3i2.2018.p

Abstract

Telah dilakukan penelitian tentang pengaruh temperatur sangrai terhadap kadar kafein pada kopi Arabika (Coffea arabica L.) Sindoro, Prau, Ijen, Preanger, dan Temanggung. Tujuan penelitian ini yaitu mengetahui adanya kafein dan menentukan kadar kafein pada kopi Arabika (Coffea arabica L.) Sindoro, Prau, Ijen, Preanger, dan Temanggung yang diberikan variasi temperatur sangrai sebesar 194οC (light roast), 204οC (medium roast), dan 214οC (dark roast), serta mengetahui ketepatan dan ketelitian metode Spektrofotometri UV-Vis dalam menentukan kadar kafein. Identifikasi adanya kafein dilakukan dengan menggunakan metode Parry, sedangkan penentuan kadar kafein ditentukan dengan metode Spektrofotometri UV-Vis. Hasil identifikasi menunjukkan bahwa 15 sampel kopi Arabika (Coffea arabica L.) dengan variasi temperatur sangrai dan standar kafein yang dianalisis positif mengandung kafein. Kadar kafein tertinggi terdapat pada sampel kopi Arabika (Coffea arabica L.) Preanger dengan temperatur sangrai 194οC sebesar 0,0133 mg, sedangkan kadar terendah terdapat pada sampel kopi Arabika (Coffea arabica L.) Prau dengan temperatur sangrai 214οC sebesar 0,0098 mg. Berdasarkan hasil penelitian semakin naik temperatur sangrai maka kadar kafein pada kopi Arabika (Cofeea arabica L.) semakin turun.Metode spektrofotometri UV-Vis memiliki ketepatan dan ketelitian masih dapat diterima dengan baik dengan nilai presisi sebesar 0,201% dan akurasi sebesar 121,73% dengan nilai RSD sebesar 0,2033%.DOI: http://dx.doi.org/10.23960/aec.v3.i2.2018.p148-162
EFEKTIVITAS FOTODEGRADASI ZAT WARNA ALIZARINE RED-S MENGGUNAKAN OKSIDATOR HIDROGEN PEROKSIDA (H2O2) DAN FOTOKATALIS TiO2 Nugroho, Rizky Tejo; Fajriati, Imelda
Analit : Analytical and Environmental Chemistry Vol. 2, No. 02 October (2017) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v2i2.2017.p

Abstract

Penelitian ini mempelajari efektivitas fotodegradasi Alizarine Red-S adanya variabel senyawa oksidator, waktu kontak, massa katalis dan pH. Pengaruh konsentrasi oksidator (H2O2) dilakukan dengan mereaksikan zat warna dan H2O2 konsentrasi 1%, 3%, 6%, 9% dan 12% menggunakan fotokatalis TiO2. Hasil fotodegradasi dianalisis menggunakan ANOVA 1 Faktor. Pengaruh waktu kontak dilakukan dengan mereaksikan zat warna dan H2O2menggunakn fotokatalis TiO2 dengan variasi waktu kontak 30, 40, 50, 60 dan 70 menit. Pengaruh massa fotokatalis TiO2 dipelajari dengan mereaksikan zat warna dan H2O2 menggunakan  fotokatalis TiO2 dengan massa 10, 20, 30 dan 40 mg. Pengaruh pH dipelajari dengan mereaksikan zat warna dan H2O2 menggunakan fotokatalis TiO2 dengan pH 6, 8 dan 10. Hasil fotodegradasi dari masing-masing pengaruh dianalisis menggunakan ANOVA 2 Faktor. Hasil penelitian menunjukkan bahwa, konsentrasi H2O2 berpengaruh signifikan terhadap fotodegradasi zat warna karena nilai F hitung > F tabel yaitu 26,38994 > 4,964603. Waktu kontak juga berpengaruh signifikan terhadap fotodegradasi zat warna karena nilai F hitung > F tabel yaitu 6,878603 > 6,388233. Untuk variasi massa fotokatalis TiO2 tidak berpengaruh signifikan terhadap fotodegradasi zat warna karena nilai F hitung < F tabel yaitu 1,920771 < 9,276628. Selanjutnya, variasi pH tidak berpengaruh signifikan terhadap fotodegradasi zat warna karena nilai F hitung < F tabel yaitu 0,606747 < 19.
Green Synthesis of ZnO Nanoparticles using Aloe Vera Extract and Xanthan Gum as Modifier for Photocatalytic Degradation of Anionic and Cationic Dye in Aqueous Solution Fajriati, Imelda; Widiakongko, Priyagung Dhemi; Krisdiyanto, Didik; Hermawati, Heti
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 1 Year 2026 (April 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20495

Abstract

The green synthesis of Zinc Oxide (ZnO) nanoparticles is a simpler, low-energy method that avoids toxic chemicals, making the process more cost-effective and environmentally friendly. The green synthesis was performed using aloe vera extract (55% - Aloin), rich in electrons from its hydroxyl groups, as a reducing agent, and natural polysaccharides from xanthan gum to disperse particles and prevent agglomeration. The green synthesis product was characterized using scanning electron microscopy, Fourier Transform spectroscopy, X-ray diffraction, transmission electron microscopy, and Diffuse Reflectance UV spectroscopy. The green-synthesized ZnO nanoparticles, both with xanthan gum (ZnO-AL/XG) and without xanthan gum (ZnO-AL), adopted a hexagonal wurtzite crystal structure. The addition of xanthan gum significantly reduced the crystallite size and enhanced the surface homogeneity of the photocatalyst. Over 50% removal of both anionic and cationic dyes was achieved by ZnO-AL/XG for up to 3 uses, and by ZnO-AL for up to 2 uses, respectively. These findings highlight the potential of the aloe vera–xanthan gum-based green synthesis as a sustainable and efficient strategy for producing ZnO nanomaterials applicable in dye wastewater treatment. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Co-Authors Agung Abadi Kiswandono Atika Yahdiyani Ikhsani Didik Krisdiyanto Fajriana, Nur Hasani Frida Agung Rakhmadi, Frida Agung Haryarta, Gusfianang Hermawati, Heti Kartika, Betania Khamidinal Khamidinal Monitasari, Annisa Nafisah, Basmah Nugroho, Rizky Tejo Puspitaningrum, Ria Rahman, Rian Adi Setia Rahmaningrum, Nadia Rini, Rika Sulistyo Rosadi, Nisrina Nabila Rosadi, Yusi SITI MARIAM Subba, Jas Raj Widiakongko, Priyagung Dhemi Zamhari, Muhammad