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All Journal Alchemy : Journal of Chemistry Jurnal Teknik Kimia Jurnal Fisika Unand Journal of Natural Sciences and Mathematics Research SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Ilmiah Teknik Kimia Jurnal Inovasi Teknik Kimia PRIMA: Journal of Community Empowering and Services ASEAN Journal of Chemical Engineering G-Tech : Jurnal Teknologi Terapan Nusantara Science and Technology Proceedings International Journal of Eco-Innovation in Science and Engineering (IJEISE) DedikasiMU: Journal of Community Service Jurnal Pengbdian Teknik Mesin COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Jurnal Pengabdian Pelitabangsa Dharma Pengabdian Perguruan Tinggi (DEPATI) Serambi Engineering Environation (Environmental Engineering Journal of Community Dedication)
Kindriari Nurma Wahyusi
Chemical Engineering Program Study, University Of Pembangunan Nasional Veteran Jawa Timur
Religion Agriculture, Biological Sciences & Forestry Arts 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 Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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The Effect of Velocity Gradient and Camp Number on Solids Removal using Bio-Coagulant from Corbula faba Hinds Shells Nurmawati, Ardika; Wahyusi, Kindriari Nurma; Dewati, Retno; Hilmy, Jauhar
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 3 No. 2 (2022): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v3i02.52

Abstract

process in water helps reduce solid content in water. The coagulant destabilizes water pollutants and helps flocs formation with the coagulation process. This paper studies the performance of chitosan bio-coagulant produced from Corbula faba Hinds shells. The velocity gradient and the Camp number of solids removal were also evaluated. The velocity and period of rapid mixing varied from 110 to 150 rpm, and the velocity gradient (G) was 181.2 to 288.5 s-1. The mixing period also ranged from 1 to 5 minutes. The highest TSS and TDS removal resulted in 140 rpm or 260.2 s-1 and 4 minutes of mixing. The residual TSS and TDS decreased with the increase of Camp Number until reaching a point and increased again afterward.
Synthesis of Hydrosiapatite from Muscle Shell Waste Using The Precipitation Method Puspitawati, Ika Nawang; Tauhid, Aziz Hafizh; M.N.K, Abdullah Tsani; Utami, Lucky Indrati; Wahyusi, Kindriari Nurma
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 3 No. 2 (2022): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v3i02.72

Abstract

Hydroxyapatite is a calcium phosphate compound that is the main inorganic component of bones and teeth. Hydroxyapatite has a main role in the medical world because of its identical chemical properties and structure to human bone. Kupang shells have a high CaCO3 content of 95-99% by weight. So this concurrence, the mussel shells are to be used as good as an ingredient for making Hydroxyapatite. The variables used in this research are Temperature of the Furnace and Phosphoric Acid Concentration, which were 700ºC, 750 ºC, 800 ºC, 850 ºC, 900 ºC and Phosphate Acid Concentrations 0.4M, 0.6M, 0.8M, 1M, and 1.2M. The product results were tested with XRD analysis to determine the crystal structure contained in the product and the level of Hydroxyapatite in the product. The best research results in this study at a temperature of 900ºC at a concentration of 1.2M phosphoric acid with a Hydroxyapatite content of 100% with lattice parameters an (Aº)=b (Aº) = 9..422, c (Aº)=6.8835, and gamma = 120º.
Biosintesis Nanopartikel ZnO Menggunakan Ekstrak Daun Tanaman Jagung (Zea Mays L.) Adeningrum, Della Arista; Rosa, Aulia; Wahyusi, Kindriari Nurma; Yogaswara, Rachmad Ramadhan
Jurnal Fisika Unand Vol 14 No 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.2.160-166.2025

Abstract

ZnO nanoparticles can be synthesized using the biosynthesis method using corn plant leaf extract (Zea Mays L.) as a bioreductant. The aim of this research is to examine the effect of variations in Zinc Nitrate Hexahydrate precursor concentration and calcination temperature on the yield, as well as the characterization of ZnO nanoparticles. Corn plant leaves are extracted to obtain flavonoid compounds. The resulting extract is mixed with the precursor solution then calcined to obtain ZnO nanoparticles.  The highest yield was produced in a sample with a precursor concentration of 0.1M with a calcination temperature of 300˚ C of 22.6082%. SEM-EDX results on samples with a precursor concentration of 0.3 M and a calcination temperature of 700˚C show various particle morphologies and sizes of ZnO nanoparticles, namely 91 nm; 97 nm; 109 nm; 435nm; and 973 nm, and the composition of ZnO nanoparticles consists of 76.43% Zn atomic weight and 23.57% O ​​atomic weight. at a calcination temperature of 700˚ C shows a pure ZnO sample with an element composition of 80.3% Zn atomic weight and 19.7% O atomic weight. The size of the crystal diameter for XRD analysis on samples with a precursor concentration of 0.3M with calcination temperatures of 300 ˚C and 700˚ C were 40.8564 nm and 31.7203 nm, respectively. Both samples have the same crystal system, namely hexagonal zincite.
EKSTRAKSI SENYAWA FLAVONOID DARI KULIT ARI BUAH DELIMA (PUNICA GRANATUM L.) Nilam Sekar Ningsih; Atika Lailatul Rachmadani; Kindriari Nurma Wahyusi
Jurnal Inovasi Teknik Kimia Vol. 10 No. 1 (2025)
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v10i1.12547

Abstract

Flavonoid adalah salah satu senyawa metabolit sekunder yang penting yang terdapat pada tumbuhan yang merupakan bagian dari turunan 2-phenyl-benzyl- γ-pyrone. Flavonoid memiliki peran penting dalam tumbuhan yaitu memberikan warna, rasa pada biji, bunga dan buah serta dapat digunakan sebagai antimikroba dan perlindungan dari paparan sinar ultra violet matahari. Salah satu sumber flavonoid adalah buah delima. Buah delima mengandung 0,2 – 1% dari berat buah delima yang didalamnya terdapat 30% terkonsentrasi berada pada bagian kulit. Tujuan dari penelitian ini adalah untuk mengkaji kecepatan pengadukan dan waktu ekstraksi terhadap kandungan flavonoid dari kulit ari buah delima (Punica granatum). Proses ekstraksi flavonoid dapat dilakukan dengan menggunakan pelarut aeston 80% dengan metode pengadukan. Metode tersebut dapat meningkatkan perpindahan massa dari bahan ke dalam pelarut. Dalam proses ekstraksi waktu ekstraksi memiliki pengaruh terhadap efektivitas ekstraksi. Waktu yang terbatas dapat menghasilkan ekstraksi yang kurang optimal, sementara waktu yang berlebihan bisa memengaruhi hasil ekstraksi dengan menyebabkan potensi kerusakan pada sampel. Diperoleh hasil ekstraksi flavonid terbaik berada pada kecepatan pengadukan sebesar 500 rpm dan pada waktu ekstraksi selama 180 menit dengan kandungan flavonoid yang terekstraksi sebesar 0,7575%
SOSIALISASI DAN IDENTIFIKASI BAHAN HALAL DI UD SOFIA COOKIES SURABAYA Hadi Munarko; Achmad Wahyu Hidayat; Jariyah; Sri Winarti; Kindriari Nurma Wahyusi
Environmental Engineering Journal of Community Dedication Vol. 2 No. 2 (2023): Jurnal Environation
Publisher : Teknik Lingkungan Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/environation.v2i2.5

Abstract

Pangan halal didefinisikan sebagai syarat utama untuk mengonsumsi produk pangan bagi konsumen muslim. Pangan halal merupakan pangan yang tidak memiliki kandungan unsur atau bahan yang haram, baik dari bahan baku pangan, bahan bantu, dan bahan penolong lain. Salah satu cara untuk memastikan pangan halal adalah dengan memiliki sertifikat halal pada suatu produk. UD Sofia Cookies merupakan UKM di Surabaya yang bergerak di bidang pangan dengan memproduksi aneka jenis cookies. UD Sofia Cookies memiliki kendala belum memiliki sertifikat halal. Dalam proses pendaftaran sertifikasi halal, diperlukan pengetahuan tentang identifikasi bahan yang termasuk dalam proses produksi. Oleh karena itu, dilakukan sosialisasi dan identifikasi bahan halal di UD Sofia Cookies. Metode yang dilakukan adalah penyuluhan tentang pentingnya dan identifikasi bahan. Hasil dari penyuluhan adalah karyawan UD Sofia Cookies telah mendapatkan informasi tentang pentingnya identifikasi bahan halal dan pada tahap pendampingan identifikasi bahan dihasilkan 38 bahan telah bersertifikat halal dan 10 bahan lainnya termasuk kategori positive list.
Pembuatan Arang Aktif Nanopartikel Kulit Nangka Menggunakan High Energy Milling dengan Aktivator H3PO4 Annisa Nur Safitri; Muhammad Faris Al Ghifary; Nurul Widji Triana; Kindriari Nurma Wahyusi
Jurnal Ilmiah Teknik Kimia Vol. 8 No. 2 (2024): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v8i2.40834

Abstract

Activated charcoal is a compound formed from the arrangement of C atoms with a porous internal structure so that it has adsorption properties. One of the materials that can be used to make activated charcoal is jackfruit peel which contains cellulose (52.739%), lignin (10.599%), and hemicellulose (16.913%). Grind it to size of 100 mesh and put it in milling nanoparticles using tools HEM at a speed of 1200 rpm for 2 hours. Next, the activation process was carried out with phosphoric acid compounds and variables of 1 hour, 6 hours, 12 hours, 18 hours, 24 hours and concentrations of 5%, 10%, 15%, 20%, 25%. Samples in powder form were characterized by size, SEM, ash content and water content. Size test results with method Particle Size Analyzer (PSA) was found to be 1.22 nm. SEM test results show that jackfruit peel activated charcoal is composed of particles of diverse size, irregular shape and porous. EDX results showed that the chemical components of activated charcoal were C (57.08%), O (33.30%), Mg (1.33%), Si 1.57%, K 5.73%. Analysis of water content and ash content is the smallest, namely 0.18% and 0.2%.
Synthesis and Characterization of Cellulose Acetate Derived from Corn Stalk Cellulose Using FTIR Analysis Masturoh, Farisah; Hasanah, Nur; Wahyusi, Kindriari Nurma
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6833

Abstract

The synthesis and characterization of cellulose acetate were carried out using cellulose derived from corn stalks. Cellulose acetate was obtained through the esterification of cellulose, a natural biopolymer commonly sourced from wood or plant fibers. During the acetylation stage, the hydroxyl groups in cellulose were replaced with acetate groups from acetic anhydride. The acetylation process involved varying the volume of glacial acetic acid (CH₃COOH) at 25, 35, 45, 55, and 65 milliliters and reaction times of 1, 1.25, 1.5, 1.75, and 2 hours, using 0.5 milliliters of 98 percent sulfuric acid as a catalyst. Cellulose was first extracted by delignification using 17.5 percent sodium hydroxide, followed by bleaching with 4 percent sodium hydroxide and 4 percent hydrogen peroxide. The results showed that increasing the volume of acetic acid led to an acetyl content of up to 40.4 percent and a degree of substitution of 2.5. Extension of the acetylation time to 1.5 hours also increased the yield of cellulose acetate to a maximum of 70.2631 percent before decreasing at longer durations. These optimal results, including 70.2631 percent yield, 40.4 percent acetyl content, and a degree of substitution of 2.5, were achieved with 65 milliliters of acetic acid and 1.5 hours of acetylation. FTIR analysis confirmed successful acetylation by identifying hydroxyl (O–H), carbonyl (C=O), and ester (C–O) functional groups.
Kinetika Reaksi Pembentukan Furfural Dari Sekam Padi (Oryza Sativa) Dengan Two-Stage Method Siahaan, Joshua Theo Anugerah; Achmad Aris Syahrul Ramadhan; Kindriari Nurma Wahyusi
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

Furfural is a valuable furan-based organic compound widely used in the chemical and pharmaceutical industries, and as an intermediate in the production of furfuryl alcohol and furanone. However, Indonesia still relies on imports due to the absence of local furfural producers. Rice husk, an abundant agricultural waste rich in pentosan, offers promising potential as an alternative raw material. This study aims to determine the kinetic equation for furfural formation from rice husk (Oryza sativa) using a two-stage method with sulfuric acid as a catalyst. The process involves hydrolysis of pentosan into pentose, followed by dehydration into furfural. Temperature (80–100 °C) and reaction time (20–60 minutes) variations were applied to observe their effect on furfural concentration, analyzed using the iodometric titration (Excess Iodine Method). Results show that the reaction follows first-order kinetics, with linear graphs and R² values approaching 1. Furfural concentration increased with both temperature and time. The activation energy obtained was 21.62 kJ/mol and the pre-exponential factor (k₀) was 14.26. This study confirms that the two-stage method is more effective in enhancing furfural production from rice husk biomass.
Pengaruh Suhu dan Waktu Ekstraksi Terhadap 6-(Dimethylnitroryl)-4,4- Diphenyl-3-Heptanone dan 9,12- Octadecadionic Acid (Z,Z)-, Methyl Ester pada Limbah Rambut Jagung (Zea Mays L.) Wahyusi, Kindriari Nurma; Triadira, Aurriel Sekar; Nur , Shiva Eric Zulfikar
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 5 No. 4 (2025): COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v5i4.3343

Abstract

Corn silk, a part of the maize plant that plays a role in pollination, is often considered agricultural waste and has not been optimally utilized. However, it contains bioactive compounds with potential antimicrobial properties. The main problem addressed in this study is the underutilization of corn silk as a source of valuable bioactive compounds, particularly flavonoids and alkaloids, which can be developed for health-related applications. This research aims to investigate the effect of extraction temperature and time variations on the levels of flavonoid compound 9,12-Octadecadionic Acid (Z,Z)-, Methyl Ester and alkaloid compound 6-(Dimethylnitroryl)-4,4-Diphenyl-3-Heptanone in corn silk extract. The method used was maceration with 80% ethanol as the solvent, followed by analysis to determine the optimum conditions. The results showed that the optimum condition for 6-(Dimethylnitroryl)-4,4-Diphenyl-3-Heptanone was achieved at 50°C for 5 hours, yielding a concentration of 21.57%. Meanwhile, the optimum condition for 9,12-Octadecadionic Acid (Z,Z)-, Methyl Ester was obtained at 40°C for 5 hours, with a concentration of 21.62%. These findings indicate that corn silk has promising potential as a source of bioactive compounds, offering added value for agricultural waste utilization. Furthermore, this study provides implications for the development of corn silk–based products with economic and health benefits.
Co-Authors A.R Yelvia Sunarti Abdul Rachman Wirayudha Abdullah Tsani M.N.K Achmad Aris Syahrul Ramadhan Achmad Wahyu Hidayat Adeningrum, Della Arista Adiyani Parahita Lestari Anggraini, Garin Rifdah Annisa Bella Annisa Nur Safitri Ardika Nurmawati Ardika Nurmawati, Ardika Astari, Rifky Zulindah Astuti, Dwi Hery Atika Lailatul Rachmadani Aziz Hafizh Tauhid Cestyadinda, Ken Ratri Cintaka Natanaelli Cita Risma Anggi Kurnia Rani Dian Nofita Disty Nur Rohmah Dyah Suci Perwitasari Ellen Oktavia Hanim Najakha Erwan Adi Saputro Euis Nurul Hidayah Faisal Amri Sholahuddin Hadi Munarko Hadi Munarko Hadi Munarko Hakam, Muhammad Hidayatullah, Muhammad Rezky Hilmy, Jauhar Ian Yusuf Syaputra Ika Nawang Puspitawati Ika Nawang Puspitawati Ika Nawang Puspitawati Imroatul Mufidah Indah Fitriana Solichah ISNI UTAMI Jamhari Jamhari Jariyah Jariyah Jariyah Jariyah Jariyah Jauhar Hilmy Juhariyah Juhariyah Ketut Sumada Caecillia Pujiastuti Kusuma Wardhani Mas’udah Lucky Indrati Utami Lucky Indrati Utami M.N.K, Abdullah Tsani Mardhiyah, Nurul Marisa Kusuma Wardani Marsela, Syafitri Masturoh, Farisah Mei Syella Kurnia Putri Cahyo Moenandar, Siswanto Mohammad Iqbal Muhammad Faris Al Ghifary Muhammad Hakam Mu’tassim Billah Nailul Hasan Najakha, Ellen Oktavia Hanim Nandini , Atika Nandini, Atika Natanaelli, Cintaka Nikmah, Shokhibatul Nilam Sekar Ningsih Nisa', Syadzadhiya Qothrunada Zakiyayasin Nofita, Dian Novel Karaman Novembrianto, Rizka Nugraha, Reva Edra Nur , Shiva Eric Zulfikar Nur Aini Fauziyah Nur Aini Fauziyah Nur Hasanah Nurul Mardhiyah Nurul Widji Triana Okik Hendriyanto Cahyonugroho Panjaitan, Renova Pardi Sampe Tola Perdana, Dean Pitaloka, Nidya Purwadi MP. Ir Puspitawati, Ika Nawang Q Z N, Syadzadhiya Ratna Yulistiani Renova Panjaitan Renova Panjaitan Retno dewati Retno Dewati Retno Dewati Reva Edra Nugraha Rosa, Aulia Siahaan, Joshua Theo Anugerah Sintha Soraya Santi Sintha Soraya Santi Siswanto Siswanto Siswanto Sri Winarti Sri Winarti SRIE MULJANI Suprihatin Susilowati Syaputra, Ian Yusuf Tabitha Intana Tandepadang Tahan Simamora Rizaldi Tahan Simamora Rizaldi Tauhid, Aziz Hafizh Triadira, Aurriel Sekar Ummi Muashomah Utami, Lucky Intrati Utari, Yulanda Kartika Vira Seviani Dewantri Wafiyah, Kholilah Wibisono, Dimas Aryo Bramantyo Wihandhita, Wigig Wilya VP, Robet Yogaswara, Rachmad Ramadhan