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All Journal JOURNAL OF COASTAL DEVELOPMENT Jurnal Kimia Riset Indonesian Journal of Chemical Science Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Journal of Chemistry Dinamisia: Jurnal Pengabdian Kepada Masyarakat Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Abdi: Media Pengabdian Kepada Masyarakat Studies in Philosophy of Science and Education PROFICIO: Jurnal Pengabdian Masyarakat Berkala Penelitian Hayati Jurnal Pijar MIPA Jurnal Ilmiah Berkala Sains dan Terapan Kimia Unesa Journal of Chemistry Jurnal Manusia dan Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Indonesian Journal of Chemical Science Jurnal Pendidikan MIPA Folia Medica Indonesiana Abisatya Journal of Current Studies in SDGs Journal of Current Studies in SDGs Biodiversitas Journal of Biological Diversity
Sari Edi Cahyaningrum
Universitas Negeri Surabaya
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Physics Social Sciences Other

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PENGARUH VARIASI POLYVINYL ALCOHOL (PVA) TERHADAP KARAKTERISTIK MEMBRAN KITOSAN TERMODIFIKASI SEBAGAI SLOW-RELEASE FERTILIZER (SRF) PUPUK NPK dinda putri aliyanti; Sari Edi Cahyaningrum
Unesa Journal of Chemistry Vol. 15 No. 2 (2026): Vol 15 No 2 (2026)
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Surabaya State University, located at Jl Ketintang, Surabaya, East Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujc.v15n2.p53-59

Abstract

The use of conventional NPK fertilizers in the agricultural sector results in relatively low nutrient utilization efficiency due to losses through volatilization, nitrification, and leaching. One effort to address this issue is the development of NPK fertilizers with controlled nutrient release, or slow-release fertilizers. This study aims to determine the effect of varying Polyvinyl Alcohol (PVA) content on the characteristics of SRF membranes. The membranes were synthesized using the solvent casting method, in which the membrane solution was poured into petri dishes and the solvent was evaporated to produce dry SRF membranes. The results showed that as the PVA content added to the SRF matrix increased, the mass ranged from 0.0573 to 0.0602 grams. The degree of swelling produced by the four variations ranged from 106.19% to 134.09%. The resulting porosity ranged from 0.20% to 0.40%. This indicates that the addition of PVA affects the physical characteristics of the membrane.
Sintesis dan Karakterisasi Hidrogel Kitosan-Minyak Jintan Hitam (Nigella sativa L.)-Lendir Bekicot (Achatina fulica) Shabrina Dwi Ardinimia; Sari Edi Cahyaningrum
Unesa Journal of Chemistry Vol. 15 No. 3 (2026): Vol 15 No 3 (2026): On progress
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Surabaya State University, located at Jl Ketintang, Surabaya, East Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujc.v15n3.p71-78

Abstract

Wounds that are not treated promptly can become infected with bacteria, which prolongs the healing process. The bacterial species most commonly associated with wound infections is Staphylococcus aureus, found in 6.3% to 56.6% of wound infection cases. One preventive measure against infection is the application of topical preparations containing antibacterial compounds such as chitosan, black cumin oil, and snail mucus. This study aims to synthesize and characterize hydrogel formulations based on chitosan, black cumin oil, and snail mucus. The hydrogels were prepared in four formulations with varying concentrations of black cumin oil: F0 (0%), F1 (5%), F2 (7%), and F3 (9%). The characterization included physical property tests, such as spreadability, adhesion, and homogeneity. As well as chemical property tests, including pH measurement and functional group analysis using FTIR. The results showed that all formulations exhibited homogeneous physical characteristics and met the standards for topical preparations. The hydrogels’ spreadability met the ideal criteria (5,18 ± 0,01 – 5,38 ± 0,02 cm), and their adhesion increased with rising black cumin oil concentration (32,67 ± 0,58 – 59,00 ± 1,00 seconds). The hydrogels’ pH values ranged from 6,16 ± 0,03 to 6,89 ± 0,01, which is consistent with skin pH. Functional group analysis revealed the presence of O-H, N-H, C-H, C=O, C=C, C-O, and C-N stretching vibrations. These hydrogel formulations demonstrate promising initial physicochemical characteristics, although further biological evaluation is still required.
Functionalization of L-Cystein On Magnetite As Magnetic Adsorbent  Metals for SDG 14 Amaria Amaria; Dina Kartika Maharani; Amalia Putri Purnamasari; Sari Edi Cahyaningrum; Aisha Setiyanti
Journal of Current Studies in SDGs Vol. 3 No. 1 (2027): March
Publisher : Sekolah Tinggi Agama Islam Sabilul Muttaqin Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63230/jocsis.3.1.251

Abstract

Objective: The increasing consumption of gold (Au) in the electronics, catalysis, and medical sectors has led to the depletion of primary ore resources while increasing the accumulation of electronic waste (e-waste) which reaches 62 million tons per year globally. Therefore, the development of selective, efficient, and environmentally friendly Au(III) recovery technology from secondary sources is very urgent. This study aims to synthesize and characterize magnetic adsorbents based on magnetite (Fe3O4@Cys) functionalized with L-Cysteine (Fe3O4@Cys) and evaluate its performance in the recovery of Au(III) ions from aqueous solutions. Method: L-Cysteine was chosen because it contains a thiol group (-SH) which has a high affinity for Au(III) based on the hard-soft acid-base (HSAB) theory. The synthesis was conducted through silica coating followed by L-cysteine immobilization using GPTMS as a coupling agent.  Results:  FTIR analysis confirmed the presence of Fe–O, Si–O–Si, and Si–OH groups, indicating successful functionalization. XRD results showed that the magnetite crystal structure was retained after modification, with a crystallite size of 16.43 nm and the presence of amorphous silica.  Novelty: The synthesized Fe3O4@Cys exhibited good acid stability, demonstrating its potential as a selective magnetic adsorbent for Au(III) recovery from secondary resources.
Sintesis dan Karakterisasi Nanoenkapsulasi Sambiloto (Andrographis paniculata) Berbasis Karboksimetil Kitosan Khulud Rihadatul 'Aisy; Sari Edi Cahyaningrum
Unesa Journal of Chemistry Vol. 13 No. 3 (2024): Vol 13 No 3 (2024)
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Surabaya State University, located at Jl Ketintang, Surabaya, East Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujc.v13n3.p108-112

Abstract

This study aims to synthesize and characterize the nanoencapsulation of sambiloto (Andrographis paniculata) extract based on carboxymethyl chitosan to improve the bioavailability of bioactive compounds. The sambiloto extract was obtained by maceration using methanol and subsequently encapsulated with carboxymethyl chitosan using ultrasonication method. Characterization results using a Particle Size Analyzer showed a particle size of 492.19 nm with a polydispersity index (PDI) of 0.3464, thus meeting the criteria for good nanoparticles in drug delivery systems. The pH stability test showed that the encapsulated sambiloto had relatively good stability. This suggests that carboxymethyl chitosan-based nanoencapsulation has the potential to protect bioactive compounds in the digestive system.
Sintesis Enkapsulasi Ekstrak Kunyit (Cursuma longa. L) Berbasis Karboksimetil Kitosan sebagai Penghantaran Obat: indonesia Ainaia Deaqiila Wahyudi; Sari Edi Cahyaningrum
Unesa Journal of Chemistry Vol. 13 No. 3 (2024): Vol 13 No 3 (2024)
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Surabaya State University, located at Jl Ketintang, Surabaya, East Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujc.v13n3.p101-107

Abstract

Curcumin is the main bioactive compound in turmeric (Curcuma longa L.) with high antioxidant activity, yet its application is limited due to poor solubility and low stability under physiological conditions. This study aimed to synthesize and characterize curcumin-encapsulated nanoparticles based on carboxymethyl chitosan (Cur-NPs) as a more stable drug delivery system. The synthesis was performed using the sonication method, while characterization included particle size and polydispersity index (PDI) analysis via PSA dan pH stability testing. The results showed that Cur-NPs had a particle size of 281.3 nm and a PDI of 0.3897, indicating a uniform particle distribution. Cur-NPs exhibited greater stability than turmeric extract across various pH conditions (2-10). These findings demonstrate that curcumin encapsulation using CMC can enhance the stability and release efficiency of curcumin in biological systems.
PENGGUNAAN KITOSAN-POLIVINIL ALKOHOL (PVA)-KALSIUM KARBONAT SEBAGAI MATRIKS UREA SLOW-RELEASE FERTILIZER (SRF) Nanda Onky Stefani; Sari Edi Cahyaningrum
Unesa Journal of Chemistry Vol. 14 No. 1 (2025): Vol 14 No 1 (2025)
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Surabaya State University, located at Jl Ketintang, Surabaya, East Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujc.v14n1.p1-7

Abstract

Slow-release fertilizer (SRF) is a method used to improve the efficiency of nutrient absorption, particularly urea, which is essential for plants during the early growth stages. This study aims to develop and characterize SRF urea modified with chitosan–polyvinyl alcohol (PVA) incorporating various concentrations of calcium carbonate. The SRF urea was prepared in membrane form and characterized through swelling and porosity tests, as well as urea release analysis over 30 days using UV-Vis spectrophotometry. The results showed that increasing calcium carbonate concentration affected the SRF’s physical properties and urea release rate. The SRF urea formulation labeled C1 exhibited optimal characteristics, with a swelling capacity of 202,5% and porosity of 15,6%, indicating its ability to regulate water diffusion effectively. SRF urea C1 released 72% of its urea content over 30 days, which was higher than that of formulations C2 and C3, yet still maintained controlled-release behavior. Therefore, a calcium carbonate concentration of 0.01% is considered optimal for producing an SRF urea formulation with both high and controlled urea release, suitable for application as a chitosan–PVA-based slow-release fertilizer.
Sintesis dan Karakterisasi Urea Slow Release Fertilizer (SRF) dengan Matriks Kitosan Termodifikasi PVA/CaCO3 Yasfin Shafa Nurulisia; Sari Edi Cahyaningrum
Unesa Journal of Chemistry Vol. 14 No. 1 (2025): Vol 14 No 1 (2025)
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Surabaya State University, located at Jl Ketintang, Surabaya, East Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujc.v14n1.p8-14

Abstract

Urea fertilizer is widely used in the agricultural due to its high content of nitrogen (±46%). However, only 30-40% of nitrogen that is effectively absorbed by plants, while the remainder is lost to the environment. Therefore, the development of SRF offers a potential solution to improve the efficiency utilization of urea fertilizer. In this study, urea based SRF was successfully synthesized using the casting method which is the urea with concentration of 0, 1000, 2000 and 3000 ppm was coated with chitosan which modified by PVA/CaCO3. In addition to synthesis, the urea SRF was also characterized through swelling and porosity test showed that the higher the concentration of urea that added, the lower of swelling degree and %porosity of the urea SRF. Meanwhile, the result of the urea release test indicated that when the urea concentration increased led to a higher urea release rate, resulting in a greater percentage of urea release.
PENGARUH PVA PADA PEMBUATAN PUPUK UREA SLOW RELEASE FERTILIZER PADA MATRIKS KITOSAN TERMODIFIKASI Betari Marena; Sari Edi Cahyaningrum
Unesa Journal of Chemistry Vol. 13 No. 3 (2024): Vol 13 No 3 (2024)
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Surabaya State University, located at Jl Ketintang, Surabaya, East Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujc.v13n3.p83-88

Abstract

Slow Release Fertilizer can be made with organic or inorganic materials. Several materials have been compared in their properties to produce SRF membranes that have the most suitable properties to be made as SRF. In this study, SRF was made with chitosan-PVA-Urea-Ca materials with the aim of increasing the efficiency of urea fertilizer absorption by plants. The method used in making this SRF is the casting method, the membrane solution will be spread on a surface and the solvent will be evaporated so that a dry SRF membrane can be produced. The results of the study showed that the more PVA added, the degree of swelling can be increased, its elasticity can be increased, and its porosity can be reduced so that it can increase the efficiency of urea absorption by plants
Detection of homozygous wildtype V1016V using allele-specific polymerase chain reaction in Aedes albopictus Ahmad Rudi Setiawan; Syananda Zahra Fadila; Teguh Hari Sucipto; Shifa Fauziyah; Safira Madaniyah; Eryantika Cipta Dewi; Sin War Naw; Tukiran Tukiran; Sari Edi Cahyaningrum
Biodiversitas Journal of Biological Diversity Vol. 24 No. 1 (2023)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d240109

Abstract

Abstract. Setiawan AR, Fadila SZ, Sucipto TH, Fauziyah S, Madaniyah S, Dewi EC, Naw SW, Tukiran, Cahyaningrum SE. 2023. Detection of homozygous wildtype V1016V using allele-specific polymerase chain reaction in Aedes albopictus. Biodiversitas 24: 62-67. Aedes sp. is a carrier of several viruses that can infect humans and cause diseases such as zika, yellow fever, chikungunya, and dengue fever. Symptoms of dengue infection vary, consisting of classic dengue fever (DD), dengue hemorrhagic fever (DHF), and dengue shock syndrome. Insecticide spray can be used to manage Aedes mosquitoes chemically. Insecticide substances target nervous system proteins. Voltage-gated sodium channels (VGSC) are rendered inactive by pyrethroid binding. Knockdown is a signal indicating an insect has been knocked down in response to a specific insecticide. However, using insecticides for a long time can cause mosquitoes to become resistant. The pesticide resistance of mosquitoes is known as knockdown resistance (kdr). This study aims to detect kdr mutations (V1016G) in two male Aedes albopictusmosquitos named A1 and A2 collected from settlements in Kranggan, Sawahan, Surabaya, East Java, Indonesia, using allele-specific polymerase chain reaction (AS-PCR) assay. RNA was extracted from the two mosquito samples using an RNA extraction kit. After that, the extracted RNA was tested for kdr mutations using the AS-PCR method. After assaying, both samples are homozygous wildtype (V1016V) because the results showed bands appearing from samples A1 and A2 at 60 bp. On the other hand, this study has the potential to serve as preliminary monitoring for the program controlling vectors.
PENINGKATAN PRODUKTIVITAS UMKM ROTI DAN KUE MELALUI PENERAPAN TEKNOLOGI TEPAT GUNA PADA PROSES PENGOLAHAN DAN PRODUKSI Muhaimin, Fitriari Izzatunnisa; Al Amin, M. Noer Falaq; Cahyaningrum, Sari Edi; Elasari, Indah Nur; Setiyanti, Aisha
Jurnal Pengabdian Masyarakat FKIP UTP Vol 7 No 2 (2026): PROFICIO : Jurnal Abdimas FKIP UTP
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jpf.v7i2.7084

Abstract

Usaha mikro, kecil, dan menengah (UMKM) roti dan kue merupakan salah satu sektor yang berpotensi meningkatkan pendapatan masyarakat, terutama bagi keluarga petani yang memiliki usaha sampingan. Salah satu UMKM di Kabupaten Nganjuk menghadapi kendala berupa keterbatasan peralatan produksi sehingga proses pengolahan bahan dan kapasitas produksi belum mampu memenuhi peningkatan jumlah pesanan. Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan produktivitas dan diversifikasi produk melalui penerapan teknologi tepat guna. Metode yang digunakan meliputi identifikasi kebutuhan mitra, pengadaan dan penyerahan peralatan, demonstrasi penggunaan, serta pendampingan selama implementasi. Teknologi yang diterapkan berupa food processor untuk mempercepat proses pengolahan bahan dan langseng berkapasitas lebih besar untuk meningkatkan kapasitas pengukusan. Hasil kegiatan menunjukkan bahwa penggunaan food processor dan langseng mampu mempercepat proses pengolahan bahan sekitar 30% dibandingkan metode sebelumnya. Selain itu, kapasitas produksi meningkat dan mitra berhasil mengembangkan diversifikasi produk, antara lain bolu gulung, putu ayu, risoles ayam, kue mangkok, dan kue bugis. Penerapan teknologi tepat guna terbukti mampu menidan ngkatkan efisiensi proses produksi sekaligus memperluas variasi produk yang dihasilkan. Program ini diharapkan dapat mendukung peningkatan daya saing dan keberlanjutan UMKM pangan skala rumah tangga.
Co-Authors , INSIYAH Achmad Fitriadi Akbar Adriani, Sherly Wahyu Afifah, Fifi Ahmad Rudi Setiawan Ahmad Rudi Setiawan Ainaia Deaqiila Wahyudi Aisha Setiyanti Akbar Izulhaq Akbar, Achmad Fitriadi Al Amin, M. Noer Falaq AMARIA Amaria Amaria Amaria Amaria Amaria Amaria Amaria Amaria Amaria Amaria Andhega Wijaya Andika Pramudya Wardana Angelo Ranamanggala, Jonathan Arie Wardhono Astuti, Tsani Betari Marena Browi Nugroho Dewi Saputri, Ratih Dewi, Eryantika Cipta Dewinta Intan Laily Dharmawan, Anggi Putra Diah Kenthiri Esa Prastika Dina Kartika Maharani Dina Kartika Maharani DINA KARTIKA MAHARANI Dina Kartika Maharani Dina Kartika Maharani dinda putri aliyanti Elasari, Indah Nur Emelia Amanda Agustin ERIN WARDIANA, APRITA Eryantika Cipta Dewi Eryantika Cipta Dewi Fadila, Syananda Zahra Fatma Listiandari, Intan Fifi Afifah Filza Qurrota 'Aini Fitriari Izzatunissa Muhaimin Fitriari Izzatunnisa Muhaimin Fitriari Izzatunnisa Muhaimin Hanifa Rachmah Kamila Hasanah Jusman, Nur Heryastuti, Nuniek I GUST MADE SANJAYA ILHAM FADILA RAMADHAN, MUHAMAD Indah Ardiningsih Indira Dwi Aulia ISNAWATI Jonathan Angelo Ranamanggala Khulud Rihadatul 'Aisy Lawarti, Riska Amelia Lazuardi, Gilang Pandu Leny Yuanita Leny Yuanita Lestari, Nanda Revita Dwi Lindawati, Zeti Luklukul Fitriyah Madaniyah, Safira Maria Monica Sianita Maria Monica Sianita Maya Dany Puspitasari Mohammad As'ad Rosyadi Mohammad Iyo Agus Setyono Mohammad Nurul Mustofa Mudasir Mufarrihul Hazin Muhaimin, Fitriari Izzatunnisa Muhammad Amar Muhammad Turhan Yani MUSLIMIN IBRAHIM Mustaji Mustaji Mustaji Mustaji, Mustaji N Narsito Nabil Nazhif Fikri Ahmad Nanda Onky Stefani Narsito Narsito Narsito Narsito Narsito Narsito Narsito Narsito Naw, Sin War Nita Kusumawati Novita Listiyani Nuniek Herdyastuti Nuniek Herdyastuti Nuniek Herdyastuti Nuniek Herdyastuti Nuniek Heryastuti Nur Qomariah Nurhadi Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati Nurhayati Nurrohman Sidiq, Muhammad Nurtikasari, Ayu Wika Nurul Hidajati NURUL HIDAJATI Oce Wiriawan Perintis Gita Susanti Pirim Setiarso Prima Retno Wikandari Puput Wanarti Rusimamto Purnamasari, Amalia Putri Rachma Indrarini Ratih Dewi Saputri Riska Amelia Lawarti Rudi Setiawan, Ahmad Rudiana Agustini Rudiana Agustini Rusmini Rusmini Rusmini Rusmini Rusmini Rusmini Sabirin Matsjeh Safira Madaniyah Safira Madaniyah Satriawan, Muhammad Setiawan, Ahmad Rudi Setiyanti, Aisha Shabrina Dwi Ardinimia Shifa Fauziyah Shifa Fauziyah Shifa Fauziyah Sin War Naw Sin War Naw Soraya, Fathimah Sri Abidah Suryaningsih Sri Juari Santoso Sri Juari Santoso Sri Juari Santoso Sri Juari Santoso Sri Juari Santoso Sukarmin Sutoyo, Suyatno Suwandi, Sukma Yanti Putri Ayu Syananda Zahra Fadila Syananda Zahra Fadila Teguh Hari Sucipto Teguh Hari Sucipto, Teguh Hari Titik Taufikurohmah Titik Taufikurohmah Titik Taufikurrohmah Titik Taufikurrohmah Tri Joko Raharjo TUKIRAN Tukiran, Tukiran Wijayanti, Alvia Rachma Yasfin Shafa Nurulisia Yetty Tinari Yossy Nur Annisa