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SINTESIS MEMBRAN KITOSAN/POLI VINIL ALKOHOL (PVA) UNTUK MENURUNKAN KADAR LIMBAH PEWARNA TEKSTIL Septiana Ambar Ambarwati; Nur Arifah Hidayati; Henny Parida Hutapea
Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Vol 7, No 1 (2024)
Publisher : Universitas Islam Kalimantan MAB Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/dl.v7i1.14360

Teknologi membran termasuk kedalam clean technology yang sedang dikembangkan saat ini. Membran kitosan dapat diaplikasikan untuk pengolahan limbah industri tekstil. Kombinasi kitosan dengan PVA bertujuan untuk meningkatkan sifat mekanik membran yang dapat dikaji berdasarkan sifat daya serap air dan daya hantar ion membran. Ikatan polimer membran kitosan/PVA tidak terbentuk dengan baik sehingga membuat PVA larut dalam NaOH pada proses pelepasan membran dari cetakan kaca. Sintesis membran dilakukan dengan melarutkan kitosan/PVA dengan variasi komposisi kitosan/PVA (m/m) diantaranya 1:3; 1:1; 3:1. Hasil penelitian menunjukkan analisis water uptake, swelling degree, dan IEC memiliki kecenderungan semakin tinggi dengan adanya peningkatan kadar kitosan dan penurunan kadar PVA. Analisis water uptake dan swelling degree tertinggi dicapai pada komposisi kitosan/PVA 3:1 dengan nilai 9,5% dan 0,36%. Analisis IEC tertinggi dicapai pada nilai 1,25 meq pada komposisi kitosan/PVA 3:1.

Inovasi Bersih: Pelatihan Pembuatan Sabun Cuci Tangan Ekstrak Sereh Wangi (Citronella) Bersama Karang Taruna IKRIMA Gondangrejo Karanganyar Septiana Ambarwati; Nur Arifah Hidayati; Hutapea, Henny Parida
SAFARI :Jurnal Pengabdian Masyarakat Indonesia Vol. 4 No. 3 (2024): Juli : Jurnal Pengabdian Masyarakat Indonesia
Publisher : BADAN PENERBIT STIEPARI PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56910/safari.v4i3.1625

Karang Taruna (IKRIMA) plays an active role in increasing productivity by participating in a training program for making natural antiseptic hand washing soap made from citronella. The choice of citronella as the main ingredient is based on its high economic value and natural properties. Additionally, citronella can inhibit the growth of bacteria, viruses, and fungi, making it an ideal choice for hand hygiene products. IKRIMA members have taken part in a series of comprehensive training regarding the manufacture of antiseptic hand washing soap. This activity includes product manufacturing and packaging practices. IKRIMA can produce hand washing soap that meets the desired quality standards, both in terms of antiseptic effectiveness as well as safety and comfort for users. Making antiseptic hand washing soap is one of the positive activities that encourages IKRIMA members to continue learning and developing. Apart from improving skills and knowledge, this activity also provides economic benefits for them and the surrounding community through the sale of the products produced.

SINTESIS MEMBRAN KITOSAN/POLI VINIL ALKOHOL (PVA) UNTUK MENURUNKAN KADAR LIMBAH PEWARNA TEKSTIL Septiana Ambar Ambarwati; Nur Arifah Hidayati; Henny Parida Hutapea
Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Vol 7, No 1 (2024)
Publisher : Universitas Islam Kalimantan MAB Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/dl.v7i1.14360

Teknologi membran termasuk kedalam clean technology yang sedang dikembangkan saat ini. Membran kitosan dapat diaplikasikan untuk pengolahan limbah industri tekstil. Kombinasi kitosan dengan PVA bertujuan untuk meningkatkan sifat mekanik membran yang dapat dikaji berdasarkan sifat daya serap air dan daya hantar ion membran. Ikatan polimer membran kitosan/PVA tidak terbentuk dengan baik sehingga membuat PVA larut dalam NaOH pada proses pelepasan membran dari cetakan kaca. Sintesis membran dilakukan dengan melarutkan kitosan/PVA dengan variasi komposisi kitosan/PVA (m/m) diantaranya 1:3; 1:1; 3:1. Hasil penelitian menunjukkan analisis water uptake, swelling degree, dan IEC memiliki kecenderungan semakin tinggi dengan adanya peningkatan kadar kitosan dan penurunan kadar PVA. Analisis water uptake dan swelling degree tertinggi dicapai pada komposisi kitosan/PVA 3:1 dengan nilai 9,5% dan 0,36%. Analisis IEC tertinggi dicapai pada nilai 1,25 meq pada komposisi kitosan/PVA 3:1.

Effect Of Papaya Leaf Extract (Carica Papaya L) As A Bioinsecticide To Remove Cage Flies (Stomoxys calcitrans) Bagus Kristanto, Dery; Parida Hutapea, Henny; Ambarwati, Septiana
Proceeding of the International Conference Health, Science And Technology (ICOHETECH) 2024: Proceeding of the 5th International Conference Health, Science And Technology (ICOHETECH)
Publisher : LPPM Universitas Duta Bangsa Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47701/icohetech.v5i1.4236

This research investigates the effectiveness of papaya leaf extract (Carica papaya L.) as a bioinsecticide against stable flies (Stomoxys calcitrans) and aims to identify the most effective concentration and solvent for killing these pests. Conducted using a Completely Randomized Design (CRD), the study utilized papaya leaf extracts obtained through maceration at concentrations of 10%, 15%, and 20%, with 96% ethanol and aquades as solvents. Phytochemical analysis confirmed the presence of beneficial compounds such as alkaloids, flavonoids, and saponins. The one-way ANOVA results revealed a significant impact of the ethanol-based extract on fly mortality, with a p-value of 0.00, while aquades showed no significant effect (p = 0.065). Notably, a 20% concentration of the ethanol extract achieved 100% mortality of stable flies within 50 minutes, indicating that papaya leaf extract is a cost-effective and environmentally friendly bioinsecticide, particularly when using ethanol as a solvent.

Rotary Evaporator Design And Equipment Performance To Increase The Concentration Of Moringa Leaf Extract Bagus Pratama, Wisnu; Parida Hutapea, Henny; Ambarwati, Septiana
Proceeding of the International Conference Health, Science And Technology (ICOHETECH) 2024: Proceeding of the 5th International Conference Health, Science And Technology (ICOHETECH)
Publisher : LPPM Universitas Duta Bangsa Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47701/icohetech.v5i1.4237

The process of extracting active compounds from Moringa leaves requires efficient techniques so that active compounds can be isolated in high concentrations without damaging the chemical structure. The tool commonly used is a rotary evaporator. This research analyzes the percentage of solvent evaporation using a Rotavap Extractor and a conventional rotary evaporator. Both tools aim to maximize solvent evaporation by retaining active compounds from the extract. This research compares the effectiveness of the two tools based on the percentage of solvent evaporated and the viscosity of Moringa leaf extract with different time variations (40, 60, 80 minutes). The percentage of solvent that evaporates has an important role in determining the concentration and viscosity of Moringa leaf extract. As more solvent evaporates, the extract becomes more concentrated, increasing the viscosity due to the high concentration of active compounds. The percentage of solvent evaporated and viscosity show the same trend between the conventional rotary evaporator and the rotavap extractor, this indicates that both devices work with similar efficiency in evaporating solvent from Moringa leaf extract.

Melangkah Menuju Zero Waste: Pemberdayaan Masyarakat Dalam Pengelolaan Sampah Plastik Sebagai Solusi Praktis Untuk Desa Masaran Ambarwati, Septiana; Hutapea, Henny Parida; Tri Supatmi, Galuh Indah
Bengawan : Jurnal Pengabdian Masyarakat Vol 5 No 1 (2025): June
Publisher : Politeknik Indonusa Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46808/jurnal_bengawan.v5i1.200

Sampah rumah tangga menjadi salah satu masalah yang mempengaruhi lingkungan global. Sampah organik maupun anorganik menjadi tantangan besar dalam hal pencemaran lingkungan dan berdampak pada kesehatan manusia. Meningkatnya produksi plastik, menjadi alasan bertambahnya limbah karena sebagian besar tidak dikelola dengan baik. Masalah serupa dihadapi oleh masyarakat Sragen khususnya Dawis Bougenville dukuh Bendungan, Dawuhan, Masaran Sragen. Salah satu langkah mengatasi masalah tersebut adalah dengan mendaur ulang sampah plastik kemasan menjadi produk yang berguna dan bernilai jual seperti kotak tisu. Kegiatan pengabdian masyarakat di Dawis Bougenville dukuh Bendungan, Dawuhan, Masaran, Sragen adalah bentuk upaya peningkatan pengetahuan dan keterampilan terkait pengelolaan sampah rumah tangga khususnya sampah plastik kemasan. Kegiatan dimulai dengan memberikan kuesioner untuk mengukur tingkat pengetahuan peserta sebelum dan sesudah adanya kegiatan. Proses kegiatan diawali dengan pemaparan materi pengelolaan sampah anorganik, dilanjutkan praktik pembuatan kotak tisu. Hasil kegiatan menunjukkan adanya peningkatan yang signifikat terkait pemahaman dan praktik pengelolaan sampah. Tingkat keberhasilan kegiatan diukur dengan metode N-Gain dengan nilai 0,71 dengan level kriteria tinggi. Hal ini menunjukkan kegiatan memberikan dampak yang signifikan terhadap masyarakat Desa Masaran Sragen. Melalui kegiatan ini, diharapkan mampu memberikan kontribusi positif dalam mengelola sampah plastik kemasan dan mendorong penerapan prinsip ekonomi sirkular di Tingkat rumah tangga.

COMPARATIVE EVALUATION OF HOMOGENEOUS AND HETEROGENOUS CATALYSTS IN THE ESTERIFICATION OF WASTE COOKING OIL Ambarwati, Septiana; Hutapea, Henny Parida; Banuwati, Ameilia Wahyu; Fuadah, Fani
Proceeding of the International Conference Health, Science And Technology (ICOHETECH) 2025: Proceeding of the 6th International Conference Health, Science And Technology (ICOHETECH)
Publisher : LPPM Universitas Duta Bangsa Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47701/sdbf9d88

Waste cooking oil is a potential raw material for biodiesel production, yet its reuse poses health and environmental risks due to the presence of carcinogenic compounds and high peroxide values. This study aimed to convert waste cooking oil into biodiesel through the transesterification process using different catalysts—acid (HCl), base (NaOH), and heterogeneous (MgO)—combined with pretreatment methods (untreated, bleaching earth, and banana peel adsorption). The reactions were carried out using ethanol as alcohol, followed by homogenization, heating at 60°C for 1 hour, and settling for 24 hours. The results showed that HCl produced the highest biodiesel yield (up to 3.1792 with bleaching earth treatment), followed by MgO and NaOH. Glycerol was obtained as the main by-product, with the highest values also associated with HCl catalysis. Residues were only formed in reactions involving NaOH and MgO due to their heterogeneous and insoluble nature, whereas no residue was found in HCl-based reactions. Pretreatment with bleaching earth significantly improved biodiesel yield compared to banana peel or untreated samples. In conclusion, acid-catalyzed transesterification of pretreated waste cooking oil, particularly with bleaching earth treatment, provides the most effective route for biodiesel production while also generating glycerol as a valuable by-product.

THE POTENTIAL OF CNT-PVA MEMBRANE AS A GREEN TECHNOLOGY ALTERNATIVE Hutapea, Henny Parida; Ambarwati, Septiana; Putri, Rafika Aulia; Aulia, Michell
Proceeding of the International Conference Health, Science And Technology (ICOHETECH) 2025: Proceeding of the 6th International Conference Health, Science And Technology (ICOHETECH)
Publisher : LPPM Universitas Duta Bangsa Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47701/0g320j79

The development of advanced membrane technologies is essential for addressing environmental challenges, particularly in wastewater treatment and oil-water separation. Polyvinyl alcohol (PVA) is a hydrophilic, environmentally friendly polymer commonly used for membrane fabrication; however, it suffers from high swelling and low mechanical strength, which limits its long-term performance. To overcome these drawbacks, carbon nanotubes (CNTs) were incorporated into the PVA matrix to form PVA-CNT composite membranes. CNTs serve as structural reinforcements, enhancing mechanical strength, thermal stability, and inter-chain bonding within the PVA network. The interconnected pore structure and high conductivity of CNTs also improve membrane selectivity and reduce swelling by stabilizing the polymer structure when exposed to water or aqueous solutions. Additionally, the modified surface properties provided by CNTs result in superior fouling resistance, minimizing pore blockage and maintaining water flux over extended operation periods. This study demonstrates that PVA-CNT composite membranes offer a sustainable and energy-efficient solution for separation processes, making them highly suitable for oil-water separation, industrial wastewater treatment, and other filtration applications such as water purification and organic compound removal. The findings highlight the potential of PVA-CNT membranes as a green technology that combines high performance with environmental sustainability. PVA-CNT membranes offer a promising approach for developing next-generation membranes with optimized structural and functional properties for environmental applications.

PELATIHAN PEMBUATAN HANDSANITIZER BERSAMA POSYANDU REMAJA DESA GEDANGAN KABUPATEN SUKOHARJO Hutapea, Henny Parida; Ambarwati, Septiana
Jurnal Abdimas Musi Charitas Vol. 8 No. 1 (2024): Jurnal Abdimas Musi Charitas Volume 8, Nomor 1, Juni 2024
Publisher : Universitas katolik Musi Charitas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32524/jamc.v8i1.1160

Antiseptic liquid or nowadays often called hand sanitizer is a hand antiseptic product whose use is very easy and practical. This product has become popular and is often used by people since the Covid 19 pandemic to kill bacteria without using water. It can be used anytime and anywhere, for example after touching things, before eating, after going to the toilet, after shopping, after throwing away the trash. Community empowerment activities in training on making hand sanitizer were carried out at the Gedangan Village Hall. The aim of this community service activity from the Industrial Chemistry Study Program at the Polsapa Surakarta is to convey information and knowledge and provide skills to members of the Gedangan Grogol Sukoharjo Village Youth Posyandu in making hand sanitizer that is safe to use. This activity was attended by 43 participants using the lecture method regarding material on making hand sanitizers and direct manufacturing practices by the activity implementing team. Next, practical workshop activities for participants who are divided into 3 groups. From the results of this community service activity, it can be concluded that the understanding and skills of the Gedangan Gorogol Sukoharjo Village Youth Posyandu regarding the material and practice of making hand sanitizers have increased. This is demonstrated by the ability to respond to questions from the activity implementation team during the activity from the start to the end of the activity and being able to make your own hand sanitizer.

Membran Komposit Polieter Eter Keton Tersulfonasi (sPEEK) dan Kitosan dengan Bahan Isian Cs2.5H0.5PW12O40 untuk Direct Methanol Fuel Cell Ambarwati, Septiana; Hidayati, Nur
Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri 2019: Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Publisher : Universitas Muhammadiyah Surakarta

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

Kinerja Direct Methanol Fuel Cell (DMFC) secara aktif telah menjadi target riset pengembangan material energi terbarukan. Untuk mendukung kinerja DMFC perlu adanya Proton Exchange Membrane (PEM) yang lebih efektif dan efisien. Polyether Ether Ketone tersulfonasi (sPEEK) telah terbukti menjadi alternatif membran karena menunjukkan sifat yang lebih unggul dan biaya lebih rendah. Modifikasi sPEEK dilapisi dengan lapisan penghalang Kitosan membentuk membran komposit dua lapis sPEEK-Kitosan dengan bahan isian Cs2.5H0.5PW12O40 (CsPTA) menunjukkan bahwa sifat Water Uptake, Swelling Degree dan IEC dipengaruhi oleh banyaknya kandungan CsPTA dalam membran. Water Uptake maksimum dicapai pada 53%, swelling degree pada 48,64% sedangkan IEC berada pada kondisi maksimal pada nilai 1,00 meq. Sifat mekanik membran komposit diuji berdasar uji kuat tarik menunjukkan kekuatan membran berada pada kisaran 39-48 MPa. Dari hasil karakterisasi membran komposit tersebut, membran komposit sPEEK-Kitosan dengan bahan isian Cs2,5H0,5PW12O40 memiliki sifat yang sebanding dengan membran komersial nafion sehingga dapat diaplikasikan pada Direct Methanol Fuel Cell.

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