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All Journal Jurnal Kimia Riset Alotrop Jurnal Pendidikan dan Ilmu Kimia JMM (Jurnal Masyarakat Mandiri) Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Molekul: Jurnal Ilmiah Kimia ALKIMIA : Jurnal Ilmu Kimia dan Terapan Jurnal Inovasi Teknik Kimia Journal of Appropriate Technology for Community Services Jurnal ABDINUS : Jurnal Pengabdian Nusantara Bubungan Tinggi: Jurnal Pengabdian Masyarakat Konservasi Hayati Current Research on Biosciences and Biotechnology Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Nanggroe: Journal Of Scholarly Service Nanggroe: Journal of Scholarly Service Jurnal Pengabdian Kesehatan Beguai Jejama Jurnal Sains Materi Indonesia Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Bioteknologi & Biosains Indonesia
Retno Agnestisia
Program Studi Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Palangka Raya
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Public Health Social Sciences Other

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Keanekaragaman Jamur Makroskopis di Hutan Gambut Arboretum Nyaru Menteng Kalimantan Tengah Desimaria Panjaitan; Frans Grovy Naibaho; Retno Agnestisia; Ivan Permana Putra
Konservasi Hayati Vol 19 No 2 (2023): OKTOBER
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/hayati.v19i2.29404

Abstract

Information on macroscopic fungi from Central Kalimantan is still limited compared to other regions in Indonesia. Arboretum Nyaru Menteng, a conservation area located in Central Kalimantan, poses many macrofungi due to its favorable environmental conditions that support the growth of various types of macrofungi. However, the diversity of macroscopic fungi from Arboretum Nyaru Menteng has never been reported. Thus, the current works aimed to provide initial information on the diversity of macroscopic fungi in this conservation area. The exploration was done using the opportunistic sampling method. Fruiting bodies were documented, collected, and identified based on macroscopic characteristics. Four environmental microclimate variables were measured in four random sampling locations: temperature, light intensity, air humidity, and soil acidity. The results confirmed that there were 27 species of macrofungi belonging to 18 genera and 14 families. Polyporaceae was the most dominant family found in this research. Most fungi grew on a dead log while the others were recognized as mycorrhizal fungi and parasites on plants. The environmental measurements showed that Arboretum Nyaru Menteng has an optimal habitat for recorded fungi growth. The record of macrofungi diversity in this research contributes to Indonesia mycoflora, particularly from Central Kalimantan.
Degradation of Humic Acids in Peat Water Using Fe3O4 Synthesized from Zircon Sand Tailing as Photo-Fenton Catalyst Toepak, Erwin Prasetya; Pasaribu, Marvin Horale; Agnestisia, Retno; Elsandika, Gabriela
Jurnal Kimia Riset Vol. 10 No. 1 (2025): June
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v10i1.66061

Abstract

Zircon sand mining in Indonesia generates magnetic waste rich in magnetite (Fe₃O₄), which has semiconductor properties, making it an effective catalyst for degrading organic pollutants. This study explores the synthesis and application of Fe₃O₄ derived from zircon mining waste as a photo-Fenton catalyst for humic acid (HA) degradation in peat water. The Fe₃O₄ catalyst was synthesized using a co-precipitation method, confirmed by FTIR and XRD analyses. FTIR identified Fe–O bonds at 537 cm-1 and 419 cm-1, while XRD showed a spinel crystal structure with peaks at 2θ angles of 30.14°, 35.51°, 43.19°, and 56.96°. The catalytic activity was tested under UV light with varying H₂O₂ volumes and Fe₃O₄ masses. The optimized condition, using 0.03 g Fe₃O₄ and 1 mL H₂O₂, achieved a maximum HA degradation efficiency of 87.06% in 100 minutes. Kinetic analysis revealed second-order kinetics, with a rate constant (k) of 8.29 × 10-4 M-1.min-1 and R² = 0.9911, showing a strong correlation. The high efficiency is attributed to Fe₃O₄'s semiconductor properties, which facilitate hydroxyl radical formation and enhance electron transfer. These findings demonstrate the potential of Fe₃O₄ from zircon mining waste as a sustainable catalyst for environmental applications, particularly in treating organic pollutants in peat water.
Pendampingan Branding, Packaging, dan Digital Marketing Tingkatkan Penjualan Madu Kelulut Desa Tuwung Yuliana, Yuliana; Agnestisia, Retno; Saputra, Rizki Rachmad; Pasaribu, Marvin Horale
Journal of Appropriate Technology for Community Services Vol. 6 No. 1 (2025)
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jattec.vol6.iss1.art2

Abstract

Tuwung Village, located in the Kahayan Tengah District, Pulang Pisau Regency, Central Kalimantan, has significant potential in managing social forestry land to support food security. The local community, organized in the Social Forestry Business Group (KUPS), has successfully cultivated 120 hives of stingless bees (Trigona sp.), with monthly production capacity of up to 350 mL per hive. Although honey production is abundant, its sales remain very limited due to a marketing strategy that relies solely on word-of-mouth promotion. Therefore, this community service activity was introduced to provide guidance to KUPS Madu Kelulut on branding, product packaging, and digital marketing. With an attractive brand, high-quality packaging, and the right marketing strategy, it is hoped that the stingless bee honey business can become more competitive in a market already saturated with similar products. This community service program involved several stages, including preparation, implementation, and evaluation. The activity was carried out on July 9, 2024, with 40 participants. The evaluation results indicated an 81.25% increase in participants' understanding of branding, product packaging, and digital marketing. Furthermore, the participants successfully created the brand "Madu Kelulut Nyai Hapu," with an appealing packaging design and effective promotional content shared through social media and e-commerce platforms.
DECOLORIZATION OF TEXTILE DYES WITH CRUDE LIGNINOLYTIC ENZYMES FROM Coriolopsis caperata Agnestisia, Retno; Karelius, Karelius; Oksal, Efriyana; Nion, Yanetri Asi
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 12 No. 1 (2025)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2025.10931

Abstract

The textile industry is a major contributor to global water pollution, releasing an estimated 280,000 tons of synthetic dyes annually into aquatic ecosystems. These dyes, particularly azo compounds, are often toxic, mutagenic, and resistant to conventional wastewater treatment methods. Microbial enzymatic degradation, especially by white-rot fungi, offers a promising eco-friendly alternative. This study aimed to optimize the production of ligninolytic enzymes—Laccase (Lac), manganese peroxidase (MnP), and lignin peroxidase (LiP)—from Coriolopsis caperata, and assess their efficiency in degrading two azo dyes: Reactive Red 21 (RR21) and Reactive Orange 107 (RO107). The fungus, isolated from the Peat Swamp Forest in Sebangau, Central Kalimantan, was cultured in a modified glucose-peptone medium enriched with veratryl alcohol. The optimization parameters included variations in time, dye concentration, and the addition of hydrogen peroxide (H₂O₂). Enzyme activity was quantified spectrophotometrically, and dye decolorization was assessed over time at different dye concentrations. Among the enzymes, Lac showed the highest activity (4938.05 U/L), followed by LiP (995.26 U/L) and MnP (246.47 U/L). These values notably exceed several previously reported benchmarks for fungal enzyme activity. RO107 demonstrated greater susceptibility to enzymatic degradation, with 83.71% decolorization achieved at 24 hours, while RR21 reached 65.71% at 48 hours. The addition of 1 mM H₂O₂ significantly enhanced decolorization, increasing RR21 and RO107 removal to 95.71% and 99.30%, respectively. These results underscore the oxidative synergy between H₂O₂ and ligninolytic enzymes, particularly LiP and MnP. Overall, the study demonstrates the potential scalability of C. caperata-based enzymatic treatment systems for textile effluent bioremediation, supporting compliance with environmental discharge regulations and contributing to sustainable wastewater management.
Eco-friendly Removal of Methylene Blue Using Alginate-Activated Natural Clay Composite. Rasidah, Rasidah; Jumiati, Jumiati; Nugroho, Wahyu; Agnestisia, Retno; Karelius, Karelius; Alfanaar, Rokiy; Iqbal, Rendy Muhamad
ALKIMIA Vol 7 No 1 (2023): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/ypf7s068

Abstract

Methylene blue is a poisonous, persistent, and non-biodegradable dye frequently found in textile industry wastewater that significantly influences the emergence of various environmental and health problems. Therefore, precautions must be taken to reduce the amount of methylene blue in the wastewater. Compositing clay into alginate produces an eco-friendly adsorbent, alginate-activated clay composite beads (Ag-AC 1-5%), successfully removing methylene blue. XRD and FTIR spectroscopy characterization results show that illite, a family of 2:1 clay minerals, is a primary constituent of activated clay. However, FTIR spectroscopy shows that alginate has mannuronic acid residue characteristics. Several batch experiments were carried out to evaluate the effect of the alginate: clay ratio and pH solution on the percentage of methylene blue removal. The higher the proportion of activated clay on the composite, the better the adsorption of methylene blue. The alginate-activated clay composite beads eliminate methylene blue up to 99.03% at the optimum pH=5, showing a potential alternative methylene blue adsorbent with a wide range of adsorption pH compared to the original material alone.
PEMBERDAYAAN KELOMPOK TANI MELALUI PEMANFAATAN ECO-ENZYME SEBAGAI POC UNTUK BUDIDAYA TANAMAN PAKCOY MENGGUNAKAN TEKNIK HIDROPONIK Panda, Adventus; Sudyana, I Nyoman; Abudarin, Abudarin; Agnestisia, Retno; Yuliana, Yuliana; Prasetyo, Edy; Razikin, Syahrul; Krissilvio, Eka Jhonatan
JMM (Jurnal Masyarakat Mandiri) Vol 8, No 6 (2024): Desember
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v8i6.27328

Abstract

Abstrak: Produktivitas pertanian sayur-mayur yang tergolong rendah merupakan salah satu masalah yang dihadapi oleh kelompok tani di Desa Tuwung, Kelurahan Kahayan Tengah, Kecamatan Pulang Pisau, Kalimantan Tengah. Hal ini disebabkan karena rendahnya kualitas lahan pertanian yang sebagian besar merupakan lahan gambut. Bertolak dari masalah tersebut, maka tujuan dari kegiatan pengabdian ini adalah memberikan sosialisasi dan demostrasi tentang pembuatan eco-enzyme dan pemanfaatannya sebagai pupuk organik cair (POC) untuk budidaya tanaman pakcoy menggunakan teknik hidroponik kepada kelompok tani yang dijadikan sebagai mitra kegiatan. Kegiatan pengabdian ini dilakukan dengan menggunakan pendekatan Participatory Action Research (PAR). Implementasi kegiatan pengabdian terdiri dari beberapa tahapan, yaitu pra kegiatan, pelaksanaan kegiatan dan evaluasi kegiatan. Kegiatan ini dilaksanakan pada bulan September 2024 di Balai Sanggar Seni dengan jumlah peserta 40 orang. Hasil pre-test dan post-test juga mencerminkan efektivitas program dalam memperluas pemahaman peserta terhadap materi yang disampaikan dengan persentase peningkatan pengetahuan sebesar 52,49%. Hasil kuesioner sebagai bagian dari evaluasi program juga menunjukkan bahwa peserta menyatakan setuju (9,38%) dan sangat setuju (90,62%) jika pengetahuan mereka meningkat setelah mengikuti kegiatan ini. Selain itu, kegiatan ini juga dinilai sangat bermanfaat, dan peserta berencana untuk melanjutkan penerapan materi secara mandiri. Hadirnya kegiatan ini diharapkan mampu memacu peningkatan produktivitas pertanian dan pengembangan usaha yang lebih berkelanjutan di Desa Tuwung, sehingga dapat meraih kemandirian ekonomi dalam sektor pertanian.Abstract: The low productivity of vegetable farming is one of the challenges faced by farming groups in Tuwung Village, Kahayan Tengah Subdistrict, Pulang Pisau District, Central Kalimantan. This issue is primarily due to the poor quality of agricultural land, much of which is peatland. To address this problem, the goal of this community service activity is to provide socialization and demonstrations on the production of eco-enzyme and its use as a liquid organic fertilizer (LOF) for cultivating pakcoy using hydroponic techniques to the farmer groups participating in the activity. The community service is carried out using a Participatory Action Research (PAR) approach. The implementation of the activity consists of several stages: pre-activity, activity execution, and activity evaluation. The event was held in September 2024 at the Balai Sanggar Seni, with 40 participants. The results of the pre-test and post-test reflected the effectiveness of the program in broadening participants' understanding of the material presented, with a knowledge increase of 52.49%. The results of the questionnaire, as part of the program evaluation, showed that participants agreed (9.38%) and strongly agreed (90.62%) that their knowledge had improved after attending the activity. Furthermore, the activity was considered highly beneficial, and participants plan to continue applying the knowledge independently. This activity is expected to contribute to improving agricultural productivity and fostering more sustainable business development in Tuwung Village, thereby achieving economic independence in the agricultural sector.
Prospecting laccase-producing wood-decaying fungi from the UPR peat swamp forest, Central Kalimantan Lumbantoruan, Lidia Amelia; Arum, Diah Panjar; Charles, Adrian; Togatorop, Hanna Esrani; Suni, Muhammad Ikhwan; Rahayu, Putri; Krissilvio, Eka Jhonatan; Haryono, Agus; Agnestisia, Retno
Current Research on Biosciences and Biotechnology Vol. 7 No. 2 (2026)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/crbb.2026.7.2/Z7TNZK3U

Abstract

Tropical peat forests of Kalimantan harbor diverse wood-decaying fungi with strong ligninolytic potential, yet their functional enzymatic characteristics remain poorly documented. This study prospectively examined the physiological expression of laccase production in native fungi isolated from the Universitas Palangka Raya peat swamp forest, Central Kalimantan. Three stable pure cultures were obtained: MIPA 2 (Ganoderma sp.), MIPA 4 (Trametes sp. 1), and MIPA 8 (Trametes sp. 3). All isolates produced extracellular laccase but showed clear differences in growth and enzyme productivity. Growth analysis revealed distinct radial expansion rates, with MIPA 2 exhibiting the fastest mycelial growth (13.64 mm/day). The faster radial growth of MIPA 2 suggests higher metabolic activity and biomass formation, which may contribute to its superior laccase production compared to the other isolates. Qualitative screening on syringaldazine-amended PDA also confirmed extracellular laccase activity in all isolates, with activity levels ranging from weak (+) to strong (+++). Quantitative assays in potato dextrose broth and modified glucose–peptone medium revealed strong nutrient-dependent regulation of laccase biosynthesis, with MIPA 2 reaching 93.71 U/L on day 21. The pronounced stimulation by organic nitrogen indicates ecological adaptation to acidic, nutrient-limited peat environments and distinguishes these isolates from many previously reported Ganoderma and Trametes strains that typically require external inducers for high activity. These findings demonstrate that peat swamp ecosystems represent not only a geographic source but also a reservoir of fungi with distinct ligninolytic expression profiles and potential biotechnological relevance.
Co-Authors Abdul Hadjranul Fatah Abdul Hadjranul Fatah Abed Nego Purba Abudarin Abudarin Abudarin, Abudarin Adventus Panda AGUS HARYONO Akhmad Damsyik Akhmad Damsyik Alfanaar, Rokiy Ansori Rahman Ariska, Risya Arum, Diah Panjar Ayuchecaria, Noverda Charles, Adrian Chuchita Damsyik, Akhmad Deni Shidqi Khaerudini Desimaria Panjaitan Dessy Analinta Dewi, Sintia Ayu Diah Ayu Pramoda Wardani Dicky Perwira Ompusunggu Edy Prasetyo Eka Jhonatan Krissilvio Erwin Prasetya Toepak Erwin Prasetya Toepak Erwin Prasetya Toepak Erwin Prasetya Toepak F. Adany Frans Grovy Naibaho Gabriela Elsandika Hakim, Muh. Supwatul I Made Sadiana, I Made I Nyoman Sudyana I Nyoman Sudyana I Nyoman Sudyana I Nyoman, Sudyana, Ilham Maulana Indri Susanti Iqbal, Rendy Muhamad Ivan Permana Putra Jumiati Jumiati Junita Dongoran Karelius Karelius Karelius Karelius Karelius Karelius Karelius, Karelius Krissilvio, Eka Jhonatan Lumbantoruan, Lidia Amelia Marvin Horale Pasaribu Midun Efendi Patar Sihombing Mokhamat Ariefin Muhamad Iqbal, Rendy Muhammad Irmawan Narsito Narsito Noer Komari Nyahu Rumbang Oksal, Efriyana Okta Prianus Prianus, Okta Purba, Abed Nego Rahayu, Putri Rasidah Rasidah, Rasidah Razikin, Syahrul Remi Ayu Pratika Rendy Muhamad Iqbal Rendy Muhamad Iqbal Rendy Muhamad Iqbal Riandy Putra Risfiah Ruli Cahyani Rizki Rachmad Saputra Rizkita, Aden Dhana Sinaga, Tiara Cristy Agatha Siswo Siswo Soaloon Sinaga Sri Yulandari Simangunsong Sudyana, I Nyoman Sugeng Mashabhi sunardi sunardi Sunardi Sunardi Suni, Muhammad Ikhwan Suyanta Suyanta Tampubolon, Mulani Jeni Lestari Togatorop, Hanna Esrani Wahyu Nugroho Wahyu Supriyati Wayan Adhi Nareyasa Whendy Trissan Widya Krestina, Luqman Hakim, Dyah Ayu Pramoda Wardani, Wulandari, Ika Octavia Yanetri Asi Nion, Yanetri Asi Yuliana Yuliana Yuliana Zimon Pereiz