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Pendampingan Peserta Kompetisi Sains Nasional Bidang Kimia Bagi Siswa SMA N 1 Prambanan, Sleman Eka Sulistyaningsih; Ani Purwanti; Sri Sunarsih
JNANADHARMA Vol. 2 No. 1 (2024): Januari 2024
Publisher : Fakultas Sains Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/jafst.v2i1.4608

Penguasaan ilmu pengetahuan dan teknologi dengan nilai integritas tinggi merupakan salah satu syarat utama bagi kemajuan suatu bangsa. Upaya-upaya dilakukan dalam berbagai kompetisi baik nasional maupun internasional, salah satunya melalui Kompetisi Sains Nasional (KSN) yang dilaksanakan setiap tahun. Salah satu bidang yang diikuti oleh siswa SMA N 1 Prambanan adalah Kimia. Kimia merupakan ilmu tentang materi, sifatnya, strukturnya, perubahan/reaksinya serta energi yang menyertai perubahan tersebut. Mata Pelajaran kimia selama ini dianggap momok yang menakutkan oleh siswa. Untuk memperoleh gelar juara pada ajang KSN diperlukan persiapan yang maksimal dalam bimbingan kepada siswa serta motivasi belajar yang besar harus ditumbuhkan dalam pribadi siswa Pelaksanaan kegiatan pendampingan persiapan KSN bidang Kimia diawali dengan memberi motivasi belajar kepada siswa dan dilanjutkan dengan pembahasan soal-soal KSN kimia. Berbagai manfaat dari kerjasama dan kolaborasi dapat dirasakan oleh siswa yaitu siswa dapat pengalaman belajar dari pendamping yang bervariasi, merasakan lingkungan belajar yang baru yakni di kampus. Selain itu siswa juga memperoleh sumber belajar yang lebih banyak.

Microplastic Contamination in Yogyakarta's Rivers: Spatial Analysis and Factor Assessment to Identify Key Pollutants Sulistyaningsih, Eka; Bekti, Rokhana Dwi; Suryowati, Kris; Susanti, Erma; Mutiara, Gupita Cahyaning; Dedu, Maria Oktafiana
International Journal of Marine Engineering Innovation and Research Vol 10, No 1 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i1.22265

River water quality monitoring aims to determine the state of river water quality and to ensure its safety for human health and the sustainability of its use. Some important parameters that are often used to measure river water quality include chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS), pH, Temperature, and microplastic content. This study uses multiple linear regression to determine which factors contribute significantly to river water quality. Samples were collected from the Winongo, Gadjah Wong, Bulus, Oyo, Belik, Tambakbayan, Opak, and Kuning rivers in Daerah Istimewa Yogyakarta (DIY) and distributed in 20 points. The results of the correlation matrix show the relationships between the variables in the data. The DO variable has the most substantial relationship with microplastics, suggesting that water quality, measured by oxygen levels, may be related to microplastic pollution. The relationship between pH and Temperature is also moderate. However, other relationships tend to be weak, suggesting that other factors may be more influential in determining these variables' relationships. The multiple linear regression model shows that an increase in pH, a decrease in Temperature, an increase in DO, and a decrease in TSS will increase the amount of microplastics. Furthermore, through spatial analysis and geographically Weighted Regression (GWR) modelling, DO significantly affects 12 observation points and does not affect eight. The spatial approach shows that the causes of river water pollution are different in each location. Therefore, each site's treatment is also different according to its characteristics.

Microplastic Contamination in Yogyakarta's Rivers: Spatial Analysis and Factor Assessment to Identify Key Pollutants Eka Sulistyaningsih; Rokhana Dwi Bekti; Kris Suryowati; Erma Susanti; Gupita Cahyaning Mutiara; Maria Oktafiana Dedu
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 1 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i1.4743

River water quality monitoring aims to determine the state of river water quality and to ensure its safety for human health and the sustainability of its use. Some important parameters that are often used to measure river water quality include chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS), pH, Temperature, and microplastic content. This study uses multiple linear regression to determine which factors contribute significantly to river water quality. Samples were collected from the Winongo, Gadjah Wong, Bulus, Oyo, Belik, Tambakbayan, Opak, and Kuning rivers in Daerah Istimewa Yogyakarta (DIY) and distributed in 20 points. The results of the correlation matrix show the relationships between the variables in the data. The DO variable has the most substantial relationship with microplastics, suggesting that water quality, measured by oxygen levels, may be related to microplastic pollution. The relationship between pH and Temperature is also moderate. However, other relationships tend to be weak, suggesting that other factors may be more influential in determining these variables' relationships. The multiple linear regression model shows that an increase in pH, a decrease in Temperature, an increase in DO, and a decrease in TSS will increase the amount of microplastics. Furthermore, through spatial analysis and geographically Weighted Regression (GWR) modelling, DO significantly affects 12 observation points and does not affect eight. The spatial approach shows that the causes of river water pollution are different in each location. Therefore, each site's treatment is also different according to its characteristics.

Optimization of the Mechanical Properties of Bio-degradable Plastics from Chitosan with Acetic Acid Solvent Ani Purwanti; Eka Sulistyaningsih; Wisnu Prayogo; Muhammad Yusuf
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 3 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i3.5116

Shrimp shell waste contains chitin which can be processed into chitosan. Chitosan can be utilized as an edible plastic. The film is expected to maintain food quality by resisting water vapour transfer as a preservative and maintaining odour. Edible plastics as food protectors are expected to have optimal mechanical properties. Chitosan films are brittle, so plasticizers are used to increase their flexibility. The mechanical properties of the film may change during storage time. The decline in film quality is expected to be fast enough to allow edible plastics for food wrapping. This study aims to determine the effect of glycerol addition and film storage time on the mechanical properties of edible chitosan film. From the results obtained, adding glycerol plasticizer produces films with thickness and elongation that tend to increase. In contrast, the tensile strength value increases and then decreases with the addition of glycerol. The optimal mechanical strength value was obtained in the film solution with glycerol at 0.3 mL/g chitosan with a maximum tensile strength of 200 kgf/cm2 and a per cent elongation of 135%. The thickness of the film produced was 0.17 mm. The film produced in this study has met the standards of film mechanical strength (tensile strength and per cent elongation) based on the Japanese Industrial Standard (JIS). Meanwhile, based on the Indonesian National Standard (SNI), the tensile strength value produced in this study has yet to meet the SNI standard.

PENINGKATAN PRODUKTIVITAS PERAJIN ECOPRINT DARUSSALAM, BANTUL MENGGUNAKAN ALAT STEAMER BERKAPASITAS 200 LITER Satriawan Dini Hariyanto; Andrean Emaputra; Eka Sulistyaningsih
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 6 (2024): Vol. 5 No. 6 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i6.40839

Kelompok perajin Ecoprint Darussalam merupakan komunitas ibu-ibu di Kabupaten Bantul, Daerah Istimewa Yogyakarta, yang memproduksi kain ecoprint. Selama ini, proses pembuatan kain masih dilakukan secara manual, yang meliputi tahapan pembersihan kain, penataan daun pada kain, penggulungan kain, perebusan kain, dan pengeringan. Salah satu tahapan yang memerlukan perhatian khusus adalah proses penggulungan kain, yang saat ini dilakukan secara manual menggunakan tangan dengan durasi sekitar 6 menit. Metode manual ini menyebabkan tingkat kekencangan kain tidak merata dan membutuhkan tenaga dari setidaknya dua orang. Oleh karena itu, diperlukan alat bantu untuk mempercepat proses penggulungan kain. Selain itu, produktivitas kelompok perajin ecoprint juga dipengaruhi oleh kapasitas perebusan kain. Dalam kegiatan pengabdian masyarakat ini, kapasitas perebusan kain berhasil ditingkatkan dari semula 60 liter menjadi 200 liter per proses. Hasil dari kegiatan ini adalah terciptanya mesin steamer berkapasitas 200 liter yang mampu meningkatkan kapasitas produksi dari semula 12 lembar menjadi 60 lembar kain. Dengan demikian, alat ini mampu mempercepat proses produksi kain dan mengurangi waktu pengerjaan secara signifikan.

PENINGKATAN PENGETAHUAN TENTANG PENGEMBANGAN PRODUK OLAHAN KETELA MELALUI PERLOMBAAN HUT REPUBLIK INDONESIA PADA IBU-IBU KALIJERUK I DAN II Andrean Emaputra; Ellyawan Setyo Arbintarso; Toto Rusianto; Endang Widuri Asih; Mega Inayati Rif`ah; Eka Sulistyaningsih; Dandung Junustisio Muktar; Davin Satria Nugraha
Abdimas Aswaja: Jurnal Pengabdian Masyarakat Vol. 2 No. 1 (2026): Abdimas Aswaja: Jurnal Pengabdian Masyarakat
Publisher : LPPM IAI Dar Aswaja Rokan Hilir

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

Currently, there is a growing trend of processed foods made from natural and healthy ingredients. One such ingredient is cassava, which provides good nutritional value. Additionally, this ingredient is tasty, affordable, and readily available in local communities. One of the residents of the Special Region of Yogyakarta is the community of Kalijeruk I and II Hamlets. This community has abundant cassava resources in its area because the hamlets still have many rice fields. However, the women in this community have not yet produced a variety of processed cassava products. Therefore, these women need to learn more about the different types of processed cassava products. A team of lecturers and students from the University of AKPRIND Indonesia carried out this community service activity. The activity was divided into several stages: first, socialization about the competition; second, the cooking contest; third, food presentation; fourth, food evaluation; and fifth, announcing the winners. This event provided the mothers with basic knowledge and motivation to create delicious, nutritious, and economically valuable cassava-based dishes. This was demonstrated by the 12 different cassava dishes prepared by the mothers.

Distribusi dan Karakteristik Mikroplastik di Perairan Waduk Sermo, Kulon Progo Fajar Nugroho; Muchlis; Eka Sulistyaningsih; Ellyawan Setyo Arbintarso
Environmental Insight Journal Vol 2 No 1 (2026): January
Publisher : Postgraduate Faculty, Yogyakarta Institut of Technology, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37412/eij.v2i1.435

Mikroplastik merupakan polutan baru yang menjadi perhatian global karena keberadaannya yang persisten dan berpotensi menimbulkan dampak terhadap lingkungan perairan serta kesehatan manusia. Waduk Sermo di Kabupaten Kulon Progo merupakan perairan tawar yang dimanfaatkan sebagai sumber air baku, irigasi, perikanan, dan pariwisata, sehingga berpotensi terpapar pencemaran mikroplastik akibat aktivitas antropogenik di sekitarnya. Penelitian ini bertujuan untuk mengidentifikasi keberadaan, kelimpahan, karakteristik bentuk, ukuran, serta jenis polimer mikroplastik pada perairan Waduk Sermo. Pengambilan sampel air dilakukan pada tiga titik, yaitu inlet sungai, tengah waduk, dan inlet PDAM. Analisis mikroplastik dilakukan melalui pengamatan morfologi menggunakan mikroskop serta identifikasi jenis polimer menggunakan Fourier Transform Infrared Spectroscopy (FTIR). Hasil penelitian menunjukkan bahwa mikroplastik ditemukan pada seluruh titik pengamatan dengan kelimpahan tertinggi pada area inlet sungai. Mikroplastik berbentuk pellet merupakan bentuk yang paling dominan, diikuti oleh fiber, fragment, film, dan foam. Hasil analisis FTIR mengindikasikan bahwa mikroplastik yang ditemukan didominasi oleh polimer polyamide (nylon), yang diduga berasal dari aktivitas perikanan dan limbah domestik. Parameter kualitas air (suhu, pH, dan dissolved oxygen) berada dalam kisaran baku mutu kelas I sesuai PP No. 22 Tahun 2021, namun tidak menunjukkan hubungan yang signifikan dengan kelimpahan mikroplastik. Hasil penelitian ini memberikan informasi ilmiah mengenai kondisi pencemaran mikroplastik di Waduk Sermo dan dapat menjadi dasar dalam pengelolaan serta pengendalian pencemaran mikroplastik pada perairan tawar.

PEMETAAN TITIK-TITIK LOKASI PEMBUANGAN SAMPAH LIAR DI KEMANTREN UMBULHARJO DAN GONDOKUSUMAN KOTA YOGYAKARTA MENGGUNAKAN METODE SISTEM INFORMASI GEOGRAFIS Hironima Bungalolong; Paramita Dwi Sukmawati; Eka Sulistyaningsih
Jurnal Daur Lingkungan Vol 9, No 2 (2026): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/daurling.v9i2.527

Permasalahan pembuangan sampah liar di Kemantren Umbulharjo dan Gondokusuman, Kota Yogyakarta masih terjadi dan memerlukan informasi spasial untuk mendukung pengendaliannya. Penelitian ini bertujuan mengidentifikasi titik LPS liar, menganalisis keterkaitannya dengan faktor geofisik, antropogenik, dan kepadatan penduduk, serta menentukan pola persebarannya menggunakan Sistem Informasi Geografis (SIG). Penelitian menggunakan metode deskriptif kuantitatif melalui survei lapangan, pencatatan koordinat, dan analisis spasial terhadap jaringan jalan, penggunaan lahan, sungai, fasilitas pengelolaan sampah, dan kepadatan penduduk. Survei mengidentifikasi 18 titik LPS liar, masing-masing 9 titik di Umbulharjo dan Gondokusuman. Sebagian besar titik berada di tepi jalan lokal dan di luar sempadan sungai 15 m. Rasio Average Nearest Neighbor (ANN) sebesar 1,636806 di Umbulharjo menunjukkan kecenderungan pola seragam, sedangkan rasio 0,718389 di Gondokusuman menunjukkan kecenderungan mengelompok. SIG memberikan informasi spasial yang dapat digunakan untuk menentukan lokasi prioritas pengawasan dan pengendalian pembuangan sampah liar.Kata kunci: Analisis Spasial; Gondokusuman; Lokasi Pembuangan Sampah Liar; Sistem Informasi Geografis; Umbulharjo

ANALISIS PENCEMARAN MIKROPLASTIK DI SUNGAI BEDOG YOGYAKARTA Eka Sulistyaningsih; Paramita Dwi Sukmawati
Jurnal Teknologi Technoscientia Vol. 17 No. 2: Jurnal Teknologi Technoscientia (Maret 2025)
Publisher : Direktorat Penelitian & Pengabdian Kepada Masyarakat (LPPM), Universitas AKPRIND Indonesia Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v17i2.5200

This study aims to analyze the presence and types of microplastics in the Bedog River, Yogyakarta, which serves as a water source for the local PDAM (regional water utility). Microplastics, defined as plastic particles smaller than 5 mm, originate from the degradation of larger plastic materials as well as from industrial and household products. Sediment samples were collected from upstream, midstream, and downstream sections of the river and analyzed using Fourier Transform Infrared (FTIR) spectroscopy. The results revealed microplastic contamination at all sites, with four main forms identified: fibers, fragments, granules, and films. FTIR analysis indicated the presence of degraded Polystyrene (PS) polymers. Microplastic abundance was highest upstream, likely due to human activities near Mount Merapi National Park. Physical factors such as current velocity, water depth, and land use changes were found to influence the distribution of microplastics in both water and sediment. This study highlights the urgent need for improved waste management and community awareness to mitigate further microplastic pollution.

ANALISIS EFISIENSI PEMBAKARAN INSINERATOR REFRAKTORI BERDASARKAN VARIASI SUHU DAN KOMPOSISI SAMPAH TERHADAP EMISI GAS BUANG: STUDI KASUS PADA BANK SAMPAH Sahyadi J Hasan; Muchlis; Eka Sulistyaningsih; Satriawan Dini Hariyanto; Andrean Emaputra
Jurnal Teknologi Technoscientia Vol. 18 No. 2: Jurnal Teknologi Technoscientia (Maret 2026)
Publisher : Direktorat Penelitian & Pengabdian Kepada Masyarakat (LPPM), Universitas AKPRIND Indonesia Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v18i2.5533

Pengolahan sampah dengan metode insinerasi merupakan salah satu solusi untuk mengurangi volume limbah padat, namun berpotensi menghasilkan emisi gas buang yang berdampak terhadap lingkungan. Penelitian ini bertujuan untuk menganalisis efisiensi pembakaran insinerator refraktori berdasarkan variasi suhu dan komposisi sampah terhadap emisi gas buang karbon monoksida (CO) dan karbon dioksida (CO₂). Penelitian dilakukan dengan variasi suhu 600°C, 850°C, dan 1200°C serta jenis sampah organik, anorganik, dan campuran dengan massa masing-masing 10 kg dan waktu pembakaran 1 jam. Pengukuran emisi dilakukan menggunakan portable gas analyzer. Hasil penelitian menunjukkan bahwa peningkatan suhu pembakaran meningkatkan efisiensi pembakaran yang ditandai dengan penurunan konsentrasi CO secara signifikan. Sampah campuran menghasilkan emisi tertinggi, sedangkan sampah organik menghasilkan emisi terendah. Suhu optimal dalam menekan emisi diperoleh pada 1200°C. Hasil ini menunjukkan bahwa pengaturan suhu dan pemilahan jenis sampah sangat berpengaruh terhadap efisiensi insinerator dan pengendalian emisi gas buang.

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