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All Journal JURNAL KIMIA SAINS DAN APLIKASI Zuriat Jurnal Ilmu Dasar e-Journal Pustaka Kesehatan BERKALA SAINSTEK Indonesian Journal of Agricultural Science Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) The Journal of Pure and Applied Chemistry Research UNEJ e-Proceeding Jurnal Abdi: Media Pengabdian Kepada Masyarakat Jurnal Abdi Masyarakat Indonesia Indonesian Chimica Letters Nanggroe: Journal Of Scholarly Service Nanggroe: Journal of Scholarly Service InSTEM Biodiversitas Journal of Biological Diversity
Ika Oktavianawati
Departement Of Chemistry, Faculty Of Mathematic And Natural Sciences, Universitas Jember
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Other

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Optimization of Cyanidation Parameters in the Merrill-Crowe Method for Copper Recovery from Electroplating Wastewater Afrianti, Lia; Haryati, Tanti; Mintadi, Mukh; Asnawati, Asnawati; Oktavianawati, Ika; Andarini, Novita; Sulistiyo, Yudi Aris; Suwardiyanto, Suwardiyanto
Indonesian Chimica Letters Vol. 5 No. 1 (2026)
Publisher : Department of Chemistry, FMIPA, UNEJ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/icl.v5i1.60006

Abstract

Electroplating wastewater contains heavy metals (copper, chromium, zinc, and nickel) at concentrations that frequently exceed safe discharge limits, posing serious risks to aquatic ecosystems. This study examines whether the Merrill–Crowe process, conventionally used for gold and silver recovery, can be adapted to recover copper from industrial electroplating effluent. The wastewater tested carried an initial copper concentration of 235.7 ppm. Cyanidation conditions were optimized by varying pH (7-11) and contact time (5-25 hours) to generate copper–cyanide complexes, which were subsequently precipitated with zinc powder. Complex formation was monitored by UV-Vis spectrophotometry; copper concentrations were quantified by atomic absorption spectrophotometry. Optimal conditions were pH 8 and 20 hours of contact time. Under these parameters, copper recovery reached 58.5% from electroplating wastewater and 43.5% from a standard reference solution. The higher efficiency in the wastewater sample reflects the presence of pre-formed copper–cyanide complexes, which accelerated both cyanidation and cementation. These results suggest the Merrill–Crowe process is a viable, low-complexity recovery strategy, one that not only reduces copper discharge but returns it in elemental form with potential economic value.
Pemberdayaan Kader PKK melalui Edukasi dan Pelatihan Pembuatan Sirup dan Puding Kayu Manis (Cinnamomum burmannii) sebagai Upaya Pemanfaatan Bahan Alam di Kelurahan Antirogo Kabupaten Jember Dina Trianggaluh Fauziah; Dyan Wigati; Firdha Novitasari; Ika Oktavianawati; Atok Ainur Ridho
Jurnal Abdi Masyarakat Indonesia Vol 6 No 3 (2026): JAMSI - Mei 2026
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jamsi.2677

Abstract

Kayu manis (Cinnamomum burmannii) dikenal memiliki berbagai khasiat kesehatan, namun pemanfaatannya oleh masyarakat Kelurahan Antirogo, Kabupaten Jember, masih belum optimal. Kegiatan pengabdian ini dilaksanakan karena pentingnya memberdayakan ibu-ibu kader PKK dalam mengolah sumber daya alam lokal menjadi produk bernilai ekonomis sekaligus mendukung kesehatan keluarga. Tujuan kegiatan adalah memberikan edukasi dan pelatihan pembuatan sirup dan puding kayu manis. Metode yang digunakan meliputi penyuluhan materi manfaat kayu manis, pemutaran video tutorial, pembagian leaflet, demonstrasi pembuatan produk, diskusi interaktif, serta evaluasi kepuasan peserta melalui kuesioner. Hasil kegiatan menunjukkan bahwa 53,2% peserta sangat puas dan 46,8% puas terhadap pelaksanaan kegiatan. Berdasarkan indikator evaluasi, materi pelatihan mendapat kepuasan tertinggi (80% sangat puas), sementara manfaat pelatihan dinilai puas oleh 88% peserta. Peserta juga menunjukkan antusiasme tinggi dalam sesi tanya jawab serta mampu memahami dan menjelaskan kembali materi. Kegiatan ini penting karena berhasil meningkatkan pengetahuan dan keterampilan peserta dalam mengolah kayu manis menjadi produk yang bermanfaat bagi kesehatan keluarga serta berpotensi meningkatkan pendapatan rumah tangga. Keberlanjutan program berupa pendampingan wirausaha perlu dilakukan untuk meningkatkan dampak ekonomi keluarga
Penyuluhan Pembuatan Permen dan Teh dari Kayu Manis di Kelurahan Antirogo Kabupaten Jember Dina Trianggaluh Fauziah; Dyan Wigati; Ayu Angger Putri M. Sholeh; Moch Rafa Firdaus; Brian Sapta Nuriandra; Ika Oktavianawati; Atok Ainur Ridho
Nanggroe: Jurnal Pengabdian Cendikia Vol 4, No 10 (2026): January
Publisher : Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.18446303

Abstract

The use of natural ingredients as medicine has been practiced since ancient times as a means of maintaining health, preventing disease, and treating illness. Natural materials such as cinnamon contain secondary metabolites such as flavonoids and polyphenols, which are believed to have anti-inflammatory, antibacterial, antioxidant, and anticancer properties. The purpose of this community service activity is to teach the community how to make cinnamon-based candy and tea that can be consumed by children and adolescents. The method used is material counseling followed by activity evaluation. The results of the evaluation of this community service activity showed that 92% of participants were satisfied with the material provided by the implementation team. This also shows that the educational material provided can give new information and benefits to the community. It is hoped that this activity can be applied by the community and that community service activities can be carried out regularly in the area to increase the local community's knowledge about the use of natural ingredients.
Bioactivities and phytochemical profile of Cyclosorus parasiticus from East Java, Indonesia via GC-MS and LC-MS FUAD BAHRUL ULUM; DWI SETYATI; IKA OKTAVIANAWATI; MOH. IKMAL ALFI RIZQONI; ERLIN NOVITA SARI; KAHAR MUZAKHAR; MUKHAMAD SU’UDI
Biodiversitas Journal of Biological Diversity Vol. 27 No. 2 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270234

Abstract

Abstract. Ulum FB, Setyati D, Oktavianawati I, Rizqoni MIA, Sari EN, Muzakhar K, Su’udi M. 2026. Bioactivities and phytochemical profile of Cyclosorus parasiticus from East Java, Indonesia via GC-MS and LC-MS. Biodiversitas 27 (2): d270234. https://doi.org/10.13057/biodiv/d270234. Cyclosorus parasiticus is a terrestrial fern abundantly distributed in the area of Gumitir Mountain, East Java, Indonesia. Despite its ecological abundance, its pharmacological potential remains undercharacterised, although leaf tissues from Gumitir populations accumulate relatively high levels of flavonoids and alkaloids. Through an integrative bioassay–metabolomics approach, this study presents the first systematic evaluation of the antibacterial and antioxidant activities, together with comprehensive chemical profiling, of C. parasiticus from the Gumitir region. Metabolite annotation revealed pronounced chemical diversity, with 39 compounds identified by GC-MS and six dominant LC-MS features. Importantly, the diterpene euphornin and the alkaloids canthiumine and haplophytine were detected and are reported here for the first time in a fern, substantially expanding current knowledge of pteridophyte secondary metabolism and highlighting previously overlooked alkaloid diversity in fern taxa. The methanolic extract exhibited concentration-dependent antibacterial inhibition against Staphylococcus aureus, Kocuria rosea, Pseudomonas aeruginosa, and Escherichia coli, with greater susceptibility observed in Gram-positive bacteria. Antioxidant activity measured by the DPPH radical-scavenging assay yielded an IC50 value of 176.66±14.64 ppm, indicating moderate radical-scavenging capacity. Collectively, these findings establish C. parasiticus (Gumitir population) as a chemically rich fern with measurable antibacterial and antioxidant potential, supporting its promise as a natural source of pharmacologically relevant metabolites.
Comparative Study of Volatile Compound Profiles and Fuel Properties of Diesel Blends with Cymbopogon nardus and Cymbopogon citratus Essential Oils as Natural Bioadditives Sya’rifa Salma Musliyati Putri; Suharno Suharno; Ika Oktavianawati
Jurnal Kimia Sains dan Aplikasi Vol 29, No 7 (2026): Volume 29 Issue 7 Year 2026
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.29.7.441-451

Abstract

The development of environmentally friendly bioadditives has attracted growing attention for improving diesel fuel quality. This study comparatively investigated the role of oxygenated compounds in essential oils from Cymbopogon nardus and Cymbopogon citratus as natural bioadditives. The essential oils were obtained by hydrodistillation and characterized for yield, moisture content, density, kinematic viscosity, and volatile compound composition using gas chromatography–mass spectrometry. The essential oils were then blended with diesel fuel at five additive concentrations (0.2, 0.4, 0.6, 0.8, and 1.0% (v/v)), with neat diesel (0% (v/v)) serving as the control. The resulting blends were evaluated for density, kinematic viscosity, distillation characteristics, and ignition quality, as indicated by the Calculated Cetane Index (CCI). The results revealed that C. citratus essential oil contained a higher proportion of oxygenated compounds than C. nardus. The optimal bioadditive concentration was determined to be 0.8% (v/v) for C. nardus and 0.6% (v/v) for C. citratus, based on a balance between statistically significant CCI improvement and maintaining density and kinematic viscosity within diesel fuel specifications. At these optimal concentrations, the CCI increased from 45.5 for neat diesel to 46.3 for C. nardus and to 46.9 for C. citratus, respectively, while density and kinematic viscosity remained within diesel fuel specifications. These findings suggest that variations in essential oil composition may contribute to the observed differences in fuel properties and support the potential use of essential oils rich in oxygenated compounds as sustainable bioadditives for diesel fuel applications.
Co-Authors . Ifada AA Sudharmawan, AA Achmad Sjaifullah Ade Danova Adi Winata, I Nyoman Afrianti, Lia Anita Karolina, Anita Apriliasari, Yekti Arifulloh, Arifulloh Asnawati Asnawati Atok Ainur Ridho Atok Ainur Ridho Aulia, Eldiani Ayik Rosita Puspaningtyas1 Ayu Angger Putri M. Sholeh Bambang Piluharto Bambang Sugiharto Bambang Sugiharto Brian Sapta Nuriandra Busroni Citra, Priscillia Dina Trianggaluh Fauziah Djenal . Djenal Djenal Dwi Indarti Dwi Setyati Dyan Wigati Elis Nur Farida, Elis Nur ERLIN NOVITA SARI Fatimah Yusro Fauziah, Dina Trianggaluh Firdaus, Moch Rafa Firdha Novitasari Fuad Bahrul Ulum Hermawati, Elvira I Nyoman Adi Winata Joni Murti Mulyo Aji KAHAR MUZAKHAR Kedang, Yohana Ivana Letisya, Nanda M. Sholeh, Ayu Angger Putri Meirinda Hermiastuti Meirinda Hermiastuti, Meirinda Mintadi, Mukh Moch Rafa Firdaus MOH. IKMAL ALFI RIZQONI Muhammad Reza Muhammad Reza MUKHAMAD SU’UDI Nanda Letitia Ivana Nia Kristiningrum Niken Widya Palupi Novita Andarini Novita Rahmawati Novita Rahmawati, Novita Nugraha, Ari Satya Nuriandra, Brian Sapta Ratih Hidayah Ratih, RD Ridho, Atok Ainur Sattya Arimurti Sholihah, Sovia MW Suci Nur Jannah Suharjono Suharjono Suharno Suharno Suwardiyanto Sya’rifa Salma Musliyati Putri Tanti Haryati Tea, Marselina Theresia Djue Tri Agus Siswoyo Tri Mulyono Triodora Hutahuruk Untung Murdiyanto Untung Murdiyanto Untung Murdiyanto Utari, Dwi Purwita Wahyu Novandari Herdiyanti Wawan Badrianto Wawan Badrianto, Wawan Wulandari, Ulfa Wuriyanti Handayani Wuriyanti Handayani, Wuriyanti Wuryanti Handayani Yudi Aris Sulisitiyo Yulvia, Ana Yuni Retnaningtyas Yusro, Fatimah Zhentya, Bella J