Article Per Year (5 Year)
p-Index From 2021 - 2026
2.766
P-Index
This Author published in this journals
All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT JST ( Jurnal Sains Terapan ) Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Chemistry Indonesian Journal of Chemical Research JSHP (Jurnal Sosial Humaniora dan Pendidikan) Jurnal Abdi Masyarakat Indonesia Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Jurnal Ilmu Pendidikan Indonesia IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Journal of Applied Community Engagement (JACE) Chimica Didactica Acta : Journal of Chemistry and Chemistry Education Jurnal Akademika Kimia Jurnal Hasil Inovasi Masyarakat (JHIM) Journal of Rural Tourism (JoRT) Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam
Simatupang, Lisnawaty
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

Published : 18 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 18 Documents
Search

 1   2 
Industry and Plantation Collaboration: The Production of Chemical Fertilizer at CV Tabita Jaya and Its Chemical Compositions Siburian, Rikson; Simanjuntak, Crystina; Tarigan, Kerista; Simatupang, Lisnawaty; Marrisa Purwati Sitinjak; Ruth Nia Magdalena Siburian; Theresia Octavia br Siburian, Claudia; Yosia Gopas Oetama Manik
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 10 No. 1 (2025): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v10i1.21317

Abstract

This study aimed to formulate and evaluate an NPK compound fertilizer with a target ratio of 10:6:20 to enhance green mustard (Brassica juncea) productivity. At CV Tabita Jaya, standardized production methods were used to prepare the fertilizer by mixing Urea, triple superphosphate, and potassium chloride, with analytical confirmation of the nutrient content. Results showed nitrogen (N) content of 10.8%, phosphorus (P₂O₅) at 6.5%, and potassium (K₂O) at 20.8%, closely aligning with the target formulation. Moisture content was low at 2.48%, ensuring product stability and ease of application. Analytical techniques employed included Kjeldahl titrimetry for nitrogen, molybdate-vanadate spectrophotometry for phosphorus, and flame photometry for potassium. These methods demonstrated high reliability, with parameters such as repeatability, reproducibility, and recovery meeting international standards. The fertilizer is expected to support green mustard growth by enhancing critical metrics, including plant height, leaf number, and biomass accumulation. The study highlights the agronomic benefits of balanced NPK fertilization for green mustard, emphasizing enhanced nutrient absorption and sustainable agricultural practices. Furthermore, integrating this fertilizer with organic amendments may help mitigate potential soil degradation associated with prolonged use of inorganic fertilizers. The findings highlight the potential of precision-formulated fertilizers to enhance crop productivity while promoting environmental sustainability.
Pengembangan Modul Berbasis SETS (Science, Environment, Technology, And Society) Untuk Meningkatan Hasil Belajar Siswa Pada Materi Sistem Koloid Kelas XI IPA SMA Br Sirait, Ir. Luciyana; Simatupang, Lisnawaty
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 3 (2023): September : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta-widyakarya.v1i3.882

Abstract

This study aims to determine the feasibility of SETS (Science, Environment, Technology, And Society) based modules on colloidal system, determine student learning outcomes after using SETS-based modules in learning and student responses to the modules. This study uses a 4-D development model consisting of define, design, development, and dissemination. This research was conducted at SMA Negeri 11 Medan which was carried out for 7 months. The feasibility of module was seen through a feasibility questionnaire for media and material experts based on the BSNP standard with a Likert scale of 1 to 5. Validation data obtained from media and material experts on SETS-based modules obtained an average percentage of 83.58% with the category valid/worthy. Student learning outcomes were obtained through the calculation of N-Gain test, which was equal to 0.74 in the high category and the average posttest score of students was 84.67. Student responses to the SETS-based module obtained an average percentage of 91.24% with a very high questionnaire interpretation. Based on the results obtained by the researcher, it can be concluded that this SETS-based module is appropriate for use in colloidal learning with a high student learning success rate and student responses that fall into very good criteria.
Peran Moderasi Gender dalam pengaruh Attitude, Norm Subjective dan Perceived Behavior terhadap Food Intention: Uji Empiris terhadap Konsumsi Makanan Tradisional Setyawati, Ria; Milaningrum, Elisabeth; Simatupang, Lisnawaty
JSHP : Jurnal Sosial Humaniora dan Pendidikan Vol 8, No 1 (2024): JSHP (Jurnal Sosial Humaniora dan Pendidikan)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat Politeknik Negeri Balikpapan.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jshp.v8i1.1925

Abstract

One of the supporting efforts in the tourism sector is the culinary business because it can attract tourists to visit a tourist destination. In this regard, consumption, especially of local or traditional foods and beverages from a region, is seen as food with cultural values. Food is both a physical need and a cultural and social activity. Therefore, the objective of this research involves the role of gender as a moderation factor in the intention to consume traditional foods, considering factors such as attitude, subjective norm, and perceived behavior. This study involves students as tourist participants who prefer culinary tourism destinations they have visited. The research employs Structural Equation Modelling (SEM) analysis, utilizing Amos in this study. The research findings indicate that the moderating role of gender shows that gender does not moderate attitudes and subjective norms concerning the intention to consume traditional foods. However, it moderates perceived behavior regarding the intention to consume traditional foods.
TRANSFORMASI PEMBAKARAN ARANG BATOK MENJADI ASAP CAIR DENGAN PENERAPAN SAINS TECHNO SEBAGAI DIVERSIFIKASI PRODUK UMKM USAHA ARANG BATOK Ginting, Elfrida; Simatupang, Lisnawaty; Sembiring, Jhony Hartanta
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol. 31 No. 4 (2025): Oktober-Desember
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v31i4.69207

Abstract

Mitra kegiatan ini adalah Usaha bersama Arang Batok di desa Patumbak Dua dusun IV kabupaten Deli Serdang. Dipimpin oleh Bapak Burman Siagian mulai beroperasi sejak tahun 2020 memiliki pekerja tetap 3 orang. Selama ini, pembakaran arang batok hanya menghasilkan arang sebagai produk utama, sementara potensi limbah asap yang dihasilkan belum dimanfaatkan secara optimal dan menjadi limbah yang menimbulkan dampak negatif. Padahal Konversi limbah asap arang batok menjadi produk yang mempunyai nilai ekonomi dan memiliki manfaat yang begitu banyak yakni: Pengawet Makanan Alami Pengendalian Hama pada industri pertanian, dan dapat digunakan dalam proses pengolahan limbah untuk mengurangi bau tidak sedap. Melalui kegiatan PKM penerapan teknologi destilasi pirolisis, asap hasil pembakaran arang batok dapat ditangkap, diolah, dan dikondensasi menjadi asap cair. Tim pengabdian memperkenalkan konsep sains techno dengan mengintegrasikan prinsip dasar kimia dan teknik pengolahan hasil pembakaran. Kegiatan pada Mitra IRT Arang batok diawali dengan Sosialisasi dan pelatihan; bagi mitra untuk meningkatkan pengetahuan dan Ketrampilan SDM dalam pengolahan asap pembakaran menjadi produk asap cair. Selanjutnya pelatihan pembuatan dan penerapan alat TTG Pirolisis kondensasi. Hasil kegiatan menunjukkan bahwa pengetahuan dan ketrampilan SDM dalam pengolahan asap pembakaran menjadi asap cair meningkat, Sebelum kegiatan hanya 1 orang yang mengetahui pengolahan asap cair setelah kegiatan 3 orang pekerja mengetahui (>100%). Sebelum kegiatan hanya memproduksi arang batok, dengan menggunakan TTG pirolisis kondensasi diperoleh pengolahan asap pembakaran menjadi produk asap cair dengan rendemen (40%) atau 40 kg dari pembakaran 160 kg batok kelapa grade 3. Diversifikasi produk membuat peningkatan jumlah tenaga kerja dari 3 pekerja menjadi 4-5 orang. Ada penambahan 2 orang pekerja untuk pengoperasian alat dan produk asap cair. Dengan adanya pengolahan asap pembakaran arang batok maka perekonomian dapat meningkatkan pendapatan dan kesejahteraan mitra (IRT Usaha Bersama Arang Batok) dan kesehatan masyarakat sekitar.
The dynamics of regional language attitudes as a cultural asset for sustainable tourism: A study of Balikpapan’s multilingual communities amid IKN development Simatupang, Lisnawaty; Ranti Rustika; Abdul Gafur; Tri Retno Nugroho; Syarif, Febby Rio Pratama
Journal of Rural Tourism Vol. 3 No. 1 (2026): Januari - June (In Progress)
Publisher : Borneo Novelty Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70310/jrt.2025.03021296

Abstract

Purpose - This study aims to examine the language attitudes of the Balikpapan community toward regional languages and to explore how these attitudes may influence regional identity and tourism development in the context of the new capital city (IKN) expansion. Method - A quantitative approach was employed, collecting survey data from 384 respondents with a 5% margin of error. Multiple factors influencing language attitudes—environmental, instructional (Indonesian as the language of instruction), family, media, and institutional factors—were analyzed using significance testing to determine their predictive effects. Findings - The results show that environmental factors (Sig. = 0.000) and media/institutional factors (Sig. = 0.029) exert significant positive effects on regional language attitudes. Conversely, the use of Indonesian as a language of instruction (Sig. = 0.012) has a significant negative effect. Family influence (Sig. = 0.533), although theoretically assumed to be the strongest factor, shows no significant impact in shaping respondents’ attitudes. Overall, the Balikpapan community demonstrates attitudes toward regional languages that could be strengthened through targeted interventions such as education-based initiatives, regional language promotion, enhanced family engagement, and the creation of language-friendly public spaces. Originality/Value - This study contributes novel empirical evidence on the sociolinguistic dynamics of a rapidly developing urban area located near the emerging national capital. It highlights how regional language attitudes intersect with cultural identity and tourism development, offering practical insights for policymakers seeking to preserve linguistic heritage while promoting culturally grounded tourism in the era of IKN development.
Simultaneous Saccharification and Fermentation of Sugarcane Bagasse by Saccharomyces Cerevisiae and Zymomonas Mobilis Ginting, Elfrida; Siregar, Ecclesia; Dewi, Ratna Sari; Simatupang, Lisnawaty; Yusfiani, Marnida; Sembiring, Jhony Hartanta
Indonesian Journal of Chemical Research Vol 13 No 3 (2026): Edition for January 2026
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2026.13-elf

Abstract

Sugarcane bagasse represents a promising lignocellulosic feedstock for second-generation bioethanol production. This study evaluated the performance of immobilized Simultaneous Saccharification and Fermentation (SSF) systems using Saccharomyces cerevisiae and Zymomonas mobilis for ethanol production from alkali-pretreated sugarcane bagasse. Delignification using 10% NaOH enhanced cellulose accessibility for enzymatic hydrolysis by immobilized Aspergillus niger. SSF was conducted under anaerobic conditions at 30°C for 80 h. Reducing sugar dynamics, physicochemical properties, FTIR spectra, and GC analysis were used to evaluate ethanol formation and quality. The SSF system employing S. cerevisiae produced a higher ethanol concentration (2.83% v/v) and purity (99.77%) compared to Z. mobilis (2.20% v/v; 89.92%). Although higher residual reducing sugars were observed in the Z. mobilis system, ethanol conversion efficiency remained lower, indicating metabolic limitations under SSF conditions. FTIR and GC analyses confirmed ethanol formation with high water content in both distillates. These results demonstrate that microbial robustness plays a critical role in immobilized SSF performance, with S. cerevisiae exhibiting superior fermentative stability and ethanol yield compared to Z. mobilis.
A Study Compares The Effectiveness of Hydrochloric and Sulfuric Acids in Hydrolyzing Jackfruit Seeds into Bioethanol Ginting, Elfrida; Simatupang, Lisnawaty; Sembiring, Jhony H.
Jurnal Akademika Kimia Vol. 14 No. 3 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i3.pp174-180

Abstract

North Sumatera Province, known for its jackfruit production, presents an opportunity to explore jackfruit seeds as a viable bioethanol feedstock. The province’s diverse agricultural commodities generate substantial agricultural waste, currently primarily used as fertilizer. This research aims to diversify waste utilization by focusing on jackfruit, a prominent commodity in North Sumatera, and its potential as a bioethanol feedstock. Given the scarcity of fossil fuels, exploring renewable energy sources, such as bioethanol derived from agricultural waste, is crucial. Identifying accessible sources within regions is vital. Converting jackfruit seed starch into bioethanol requires hydrolysis. This paper compares hydrochloric and sulfuric acid for bioethanol production. Qualitative testing confirmed the presence of bioethanol from both acids. The density of bioethanol produced using hydrochloric acid was 0.825 g/mL, 3.4% higher than the Indonesian standard value. Similarly, the density of bioethanol produced using sulfuric acid was 0.894 g/mL, 12% higher than the standard value. The viscosity of bioethanol produced using hydrochloric acid was 1.02 cp, 12% lower than the standard value. In contrast, bioethanol produced using sulfuric acid had a viscosity of 1.04 cp, 11% lower than the standard value. FTIR spectra of bioethanol treated with hydrochloric acid showed five prominent peaks: 3339.88 cm-1 (OH), 2953.35 cm-1 (-CH), 1643.79 cm-1 (-C-C), 1450.75 cm-1 (-CH3), and 1014.17 cm-1 (-CO). FTIR spectra of bioethanol treated with sulfuric acid showed only two major peaks at 3339.46 cm-1 and 1635.42 cm-1, both corresponding to -OH and -CH. The NMR spectra show three distinct peaks. In ethanol’s proton NMR spectrum, the first doublet at 1.71 and 1.61 ppm is the methyl group protons. The second peak at 2.02 ppm is the hydroxyl group proton. The third doublet at 3.59–3.62 ppm is the methylene group protons. All methods indicate that hydrochloric acid is a more effective hydrolytic agent than sulfuric acid.
Pelatihan Pencegahan dan Penanggulangan Kebakaran untuk Anggota TP PKK Kelurahan Karang Joang, Kecamatan Balikpapan Utara, Provinsi Kalimantan Timur Simanjuntak, Maria; Rahayu, Enita; Rahmayanti, Firda; Simatupang, Lisnawaty; D, Nawang Retno; Mulyani, Yogiana
Jurnal Abdi Masyarakat Indonesia Vol 6 No 1 (2026): JAMSI - Januari 2026
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jamsi.2106

Abstract

Kebakaran merupakan ancaman serius yang sering disebabkan kelalaian manusia, seperti korsleting listrik, kebocoran gas, puntung rokok, dan penggunaan lilin. Anggota TP PKK Kelurahan Karang Joang, Balikpapan Utara, Kalimantan Timur belum pernah mendapatkan pelatihan terkait kebakaran rumah tangga sehingga minim pemahaman dan keterampilan pencegahan. Kegiatan pengabdian ini bertujuan meningkatkan pengetahuan dan keterampilan anggota TP PKK dalam mencegah, menghadapi, dan menangani kebakaran rumah tangga. Pelatihan diikuti 20 peserta melalui empat tahapan: assessment kebutuhan, perencanaan materi, implementasi sosialisasi dan praktik, serta evaluasi pre-test dan post-test. Materi mencakup upaya mencegah kebakaran di rumah, penggunaan Alat Pemadam Api Ringan (APAR), pemadaman api menggunakan karung basah, dan penanganan kebakaran akibat kebocoran gas. Berdasarkan hasil pre-test dan post-test, terdapat peningkatan signifikan sebesar 46%, dengan rata-rata nilai pre-test sebesar 63 dan post-test sebesar 92. Selain itu, hampir seluruh peserta mampu memadamkan api secara langsung menggunakan karung goni dan APAR. Pelatihan ini terbukti meningkatkan kesadaran dan keterampilan praktis anggota TP PKK dalam memadamkan api sehingga dapat dijadikan model pemberdayaan masyarakat dalam mitigasi kebakaran rumah tangga.
Co-Authors Abdul Gafur Abdul Ghofur Bajoka Nainggolan Br Sirait, Ir. Luciyana Candra Irawan D, Nawang Retno Elisabeth Milaningrum Ginting, Elfrida Jhony Hartanta Sembiring Kango, Riklan Marrisa Purwati Sitinjak Nainggolan4, Bajoka Napitupulu, Rahel Ronauli Kurniaasih Nawang Retno Dwiningrum, Nawang Retno Nurfajriani, Nurfajriani Pakpahan, Binsar Maruli Tua Pakpahan, Debora Pakpahan, Natal Toga Hot Tua Pasaribu, Muhammad Nuh Hudawi Patria Rahmawaty, Patria Rachmi, Naila Syabina Rahayu, Enita Rahmayanti, Firda Ramlan Silaban Ratna Sari Dewi Rayu, Enita Retno Dwiningrum, Nawang Rikson Siburian Robert Silaban Rustika, Ranti Ruth Nia Magdalena Siburian Sembiring, Jhony H. Setyawati, Ria Siagian, Dea Gracella Sihombing, Prada Sihotang, Dafit Ericson Simanjuntak, Christin T. N. Simanjuntak, Crystina Simanjuntak, Maria Simanjuntak, Maria Veronika Simatupang, Kristian Adinata Pratama Sinaga, Sabas DK Siregar, Ecclesia Syarif, Febby Rio Pratama Tarigan, Kerista Theresia Octavia br Siburian, Claudia Tri Retno Nugroho Veronika Simanjunta, Maria Yogiana Mulyani, Yogiana Yosia Gopas Oetama Manik Yusfiani, Marnida Zulkarnain, Zulkarnian