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All Journal KLOROFIL: Jurnal Ilmu Biologi dan Terapan KLOROFIL: Jurnal Ilmu Biologi dan Terapan Jurnal Sains dan Teknologi Sinergi Polmed : Jurnal Ilmiah Teknik Mesin Indonesian Journal of Science and Pharmacy Jurnal Bakti Nusantara
Ayu Syufiatun Tarigan
Program Studi DIV Teknologi Rekayasa Kimia Industri, Jurusan Teknik Mesin, Politeknik Negeri Medan
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary Other

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ISOLASI NANOSELULOSA DARI TANDAN KOSONG SAWIT MENGGUNAKAN HIDROLISIS ASAM SEBAGAI MATERIAL BIOMEDIS Ayu Syufiatun Tarigan
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 5, No 1 (2021): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v5i1.9273

Abstract

This study aims to isolate nanocellulose from oil palm emptry fruit bunches (OPEFB) using acid hydrolysis method. Hydrolysis was carried out for 2 hours using 10% HCl and followed by centrifugation, ultrasonication and dialysis using a semipermeable membrane. The results obtained were tested by FT-IR, and it was found that there was a -OH functional group at a wavenumber between 3000-3500 cm-1, a C-H group in the area 2850-3000 cm-1, -CH2 bending at a wavenumber 1330-1465 cm-1 and the CO group at wave numbers 1000-1100 cm-1. This indicates that the product is in the form of cellulose. The particle size distribution of cellulose was tested with a PSA (Particle Size Analyzer) and the nanocellulose was about 7.2 nm in size.
ISOLASI NANOSELULOSA DARI TANDAN KOSONG SAWIT MENGGUNAKAN HIDROLISIS ASAM SEBAGAI MATERIAL BIOMEDIS Ayu Syufiatun Tarigan
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 5, No 1 (2021): KLOROFIL : JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v5i1.9273

Abstract

This study aims to isolate nanocellulose from oil palm emptry fruit bunches (OPEFB) using acid hydrolysis method. Hydrolysis was carried out for 2 hours using 10% HCl and followed by centrifugation, ultrasonication and dialysis using a semipermeable membrane. The results obtained were tested by FT-IR, and it was found that there was a -OH functional group at a wavenumber between 3000-3500 cm-1, a C-H group in the area 2850-3000 cm-1, -CH2 bending at a wavenumber 1330-1465 cm-1 and the CO group at wave numbers 1000-1100 cm-1. This indicates that the product is in the form of cellulose. The particle size distribution of cellulose was tested with a PSA (Particle Size Analyzer) and the nanocellulose was about 7.2 nm in size.
Evaluating the Potential of Modified Niobium (V) Oxide as Catalyst for 5-Hydoxymethylfurfural (HMF) Production : A Literature Review Inten Pangestika; Imas Masriah; Devi Lestari; Ayu Syufiatun Br Tarigan; Pina Budiarti Pratiwi
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 3 (2025): Juni 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i3.5385

Abstract

Selectively producing 5-hydroxymethylfurfural (HMF) from biomass-derived carbohydrates is key in valorizing renewable resources into biobased chemicals and fuels. HMF is a crucial bio-based platform chemical, but its selective production from glucose and fructose remains challenging due to side reactions and product degradation. Modified niobium(V) oxide (Nb2O5) catalysts have shown great promise owing to their intrinsic Brøntsted and Lewis acidity, thermal stability, and surface tunability. This review overviews recent advances in catalyst design, including metal doping, structural tuning, and hybridization with porous materials. These have significantly improved HMF yields -up to 80%- while enhancing catalyst selectivity and reusability. A systematic review with a descriptive-analytical approach was applied, analyzing literature from 2015 to 2025 across major scientific databases. Furthermore, challenges, including side-product formation and active site leaching, are highlighted alongside future perspectives for scalable and green HMF synthesis using Nb-based catalysts. This review aims to guide the rational development of modified Nb2O5 catalysts for efficient biomass transformation. These developments are crucial for advancing Nb-based catalytic platforms and unlocking the full potential of HMF in a circular, bio-based chemical industry.
Upaya Peningkatan Literasi Bahan Tambahan Pangan dalam Jajanan Kemasan melalui Sosialisasi Interaktif Hasibuan, Adelia Yesya Putri; Moneteringtyas, Prisca Caesa; Tarigan, Ayu Syufiatun Br; Rahmat, Nahzim
Jurnal Bakti Nusantara Vol. 2 No. 3 (2025): Jurnal Bakti Nusantara
Publisher : Pustaka Media Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63763/jbn.v2i3.92

Abstract

Rendahnya kesadaran masyarakat terhadap bahan tambahan pangan dan zat kimia dalam jajanan kemasan dapat menimbulkan risiko kesehatan, khususnya di kalangan anak-anak dan orang tua di wilayah pedesaan. Program pengabdian kepada masyarakat ini bertujuan untuk meningkatkan literasi kimia pangan melalui kegiatan sosialisasi edukatif yang interaktif. Kegiatan ini dilaksanakan di Desa Bagan Serdang, Kecamatan Pantai Labu, Kabupaten Deli Serdang, Provinsi Sumatera Utara. Dengan menggunakan pendekatan riset tindakan, dilakukan tes awal dan tes akhir untuk mengevaluasi efektivitas intervensi. Hasil evaluasi menunjukkan adanya peningkatan signifikan dalam tingkat pengetahuan peserta, di mana hampir seluruh peserta memperoleh skor tertinggi pada tes akhir. Tingkat pemahaman tinggi dapat dilihat pada tes akhir yang mencapai 100% yaitu terdapat pada soal nomor 1, 2, 4, 5, 7, dan 9, sedangkan yang tidak mencapai 100%, hanya terdapat pada soal nomor 3 (86,70%), nomor 6 (73,33%), nomor 8 (80%), dan nomor 10 (93,30%). Sosialisasi interaktif telah berhasil meningkatkan pemahaman mitra tentang bahan tambahan pangan dalam jajanan kemasan.
Optimasi Sifat Mekanik dan Morfologi Permukaan Campuran Resiprena dengan Matriks Polimer Polipropilena dan Polistirena melalui Penambahan Stearin Tarigan, Ayu Syufiatun Br; Hartati, Nina; Wirjosentono, Basuki; Arbaiyah, Arbaiyah; Mashitoh, Anjar Siti
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 9, No 1 (2025): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v9i1.25687

Abstract

This study aims to investigate the effect of adding resiprene and stearic acid on the mechanical properties and surface morphology of polyolefin blends, specifically polypropylene (PP) and polystyrene (PS). Resiprene was incorporated as an additive to enhance flexibility, while stearic acid was introduced to improve polymer compatibility and blend dispersion. The test results showed that the addition of 20 phr resiprene to polypropylene yielded the highest tensile strength of 9.63 MPa and an elongation of 5.85%, indicating high flexibility and compatibility of the blend. In contrast, the tensile strength of the PS-based blends was generally lower than that of the PP-based counterparts. The addition of 1 phr stearic acid proved effective in reducing the number of pores on the surface of both PP and PS blends. Interestingly, the PS-resiprene-stearic acid blend exhibited a more refined surface morphology compared to the PP-resiprene-stearic acid blend, suggesting higher compatibility of PS within the composite system.
Optimasi Sifat Mekanik dan Morfologi Permukaan Campuran Resiprena dengan Matriks Polimer Polipropilena dan Polistirena melalui Penambahan Stearin Tarigan, Ayu Syufiatun Br; Hartati, Nina; Wirjosentono, Basuki; Arbaiyah, Arbaiyah; Mashitoh, Anjar Siti
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 9, No 1 (2025): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v9i1.25687

Abstract

This study aims to investigate the effect of adding resiprene and stearic acid on the mechanical properties and surface morphology of polyolefin blends, specifically polypropylene (PP) and polystyrene (PS). Resiprene was incorporated as an additive to enhance flexibility, while stearic acid was introduced to improve polymer compatibility and blend dispersion. The test results showed that the addition of 20 phr resiprene to polypropylene yielded the highest tensile strength of 9.63 MPa and an elongation of 5.85%, indicating high flexibility and compatibility of the blend. In contrast, the tensile strength of the PS-based blends was generally lower than that of the PP-based counterparts. The addition of 1 phr stearic acid proved effective in reducing the number of pores on the surface of both PP and PS blends. Interestingly, the PS-resiprene-stearic acid blend exhibited a more refined surface morphology compared to the PP-resiprene-stearic acid blend, suggesting higher compatibility of PS within the composite system.
KARAKTERISASI NILAI KALOR BRIKET BERBASIS CAMPURAN KULIT DURIAN DAN KULIT JAGUNG SEBAGAI BAHAN BAKAR PADAT RAMAH LINGKUNGAN Tarigan, Ayu Syufiatun Br; Ritonga, Fatima Sari; Cuana, Rona; Hadi, Bagus Sidik Waskito
SINERGI POLMED: Jurnal Ilmiah Teknik Mesin Vol. 7 No. 1 (2026): Edisi Februari
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/sinergipolmed.v7i1.2875

Abstract

Briket biomassa merupakan salah satu solusi energi alternatif yang ramah lingkungan untuk mengurangi ketergantungan terhadap bahan bakar fosil. Penelitian ini bertujuan menganalisis pengaruh variasi komposisi campuran kulit durian dan kulit jagung terhadap nilai kalor, waktu nyala awal, lama pembakaran, dan kualitas asap, sekaligus mengkaji keunggulan kombinasi kedua biomassa tersebut dibandingkan pembakaran bahan tunggal yang telah dilaporkan pada penelitian sebelumnya dalam meningkatkan kinerja pembakaran dan kualitas emisi. Bahan baku kulit durian dikarbonisasi pada temperatur 300–400°C, kemudian dicampur dengan kulit jagung kering dan perekat tapioka 5% dari total massa. Campuran dicetak dalam bentuk silinder dan dikeringkan hingga kadar air <10%. Pengujian nilai kalor dilakukan menggunakan kalorimeter bom, sedangkan waktu nyala awal dan lama pembakaran diukur menggunakan stopwatch. Hasil penelitian menunjukkan bahwa peningkatan fraksi kulit durian meningkatkan nilai kalor dan durasi pembakaran, sedangkan penambahan kulit jagung mempercepat penyalaan awal. Komposisi optimum diperoleh pada rasio 95% kulit durian dan 5% kulit jagung, dengan nilai kalor 27,6 MJ/kg dan waktu pembakaran 150 menit, serta menghasilkan asap tipis. Hasil tersebut memenuhi standar SNI 01-6235-2000 untuk briket biomassa. Dengan demikian, briket campuran kulit durian dan kulit jagung berpotensi menjadi bahan bakar padat alternatif yang efisien dan ramah lingkungan, serta mendukung pengembangan energi terbarukan berbasis limbah pertanian.
Modification of Durian Peel-Based Activated Carbon with Silver Nanoparticles for Enhanced Antibacterial Properties: A Literature Review Pratiwi, Pina Budiarti; Tarigan, Ayu Syufiatun Br; Hasibuan, Adelia Yesya Putri; Yanti, Elsa Novri
Indonesian Journal of Science and Pharmacy Vol. 3 No. 2 (2025): Indonesian Journal of Science and Pharmacy
Publisher : Pustaka Media Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63763/ijsp.v3i2.138

Abstract

Durian (Durio zibethinus) peel, an abundant agricultural waste in Southeast Asia, represents a sustainable lignocellulosic precursor for producing activated carbon (AC) with high surface area and porous structure. However, pristine durian peel-derived AC exhibits limited intrinsic antibacterial activity, primarily relying on physical adsorption. Silver nanoparticles (AgNPs) are well-known broad-spectrum antibacterial agents that disrupt bacterial membranes, generate reactive oxygen species (ROS), and interfere with cellular processes. Immobilization of AgNPs onto AC is expected to create a synergistic composite that combines adsorptive capacity with potent bactericidal effects. This literature review systematically examines the synthesis and characterization of activated carbon from durian peel, green synthesis routes of AgNPs using durian peel extract or pectin as reducing and stabilizing agents, and the potential of AgNP-modified durian peel AC for enhanced antibacterial performance. Key findings indicate that chemical activation (KOH or acid-based) yields AC with surface areas ranging from 257 to 666 m²/g. Pectin extracted from durian peel enables eco-friendly synthesis of stable, spherical AgNPs (core size ≈13.5 nm, zeta potential ≈ –50 mV) with minimum inhibitory concentrations (MIC) of 61.8 ppm against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Comparative analysis reveals that while pristine durian peel AC shows only moderate bacterial capture, AgNP integration significantly improves bactericidal efficacy through combined adsorption-bactericidal mechanisms. Potential applications include water disinfection, antimicrobial filters, and biomedical materials. Challenges such as silver leaching, scalability, and long-term stability are discussed. This review highlights the emerging potential of AgNP-modified durian peel activated carbon as a low-cost, multifunctional material for addressing bacterial contamination while promoting waste valorization. Future research should focus on direct composite synthesis, comprehensive antibiofilm testing, and real-matrix performance evaluation.
Penerapan Teknologi Pupuk Organik Limbah Jagung untuk Pertanian Berkelanjutan di Desa Nari Gunung Satu, Kabupaten Karo, Sumatera Utara Miswanda, Dikki; Lestari, Devi; Masriah, Imas; Rambey, Mustafid Amna; Tarigan, Ayu Syufiatun Br
Jurnal Bakti Nusantara Vol. 3 No. 3 (2026): Jurnal Bakti Nusantara
Publisher : Pustaka Media Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63763/jutira.v3i3.135

Abstract

Desa Nari Gunung Satu di Kecamatan Tiganderket, Kabupaten Karo, memiliki potensi pertanian tinggi pada komoditas salak dan jagung, namun masih menghadapi permasalahan ketergantungan terhadap pupuk kimia serta rendahnya pemanfaatan limbah pertanian. Limbah jagung seperti kulit, batang, dan tongkol selama ini dibakar atau dibuang, sehingga menimbulkan pencemaran lingkungan dan pemborosan sumber daya. Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan kapasitas kelompok tani melalui pelatihan pembuatan pupuk organik padat berbasis limbah jagung menggunakan teknologi fermentasi Effective Microorganism 4 (EM4). Metode pelaksanaan dilakukan secara partisipatif melalui sosialisasi, pre-test, pelatihan teori dan praktik, pendampingan teknis, serta post-test. Hasil kegiatan menunjukkan peningkatan signifikan pengetahuan dan keterampilan peserta dengan nilai rata-rata pre-test 42,7 dan post-test 86,7. Selain meningkatkan kompetensi teknis petani dalam pembuatan pupuk organik, program ini juga mendorong kemandirian kelompok tani dalam mengelola limbah pertanian secara produktif dan ramah lingkungan. Dengan demikian, kegiatan PKM ini berkontribusi nyata terhadap penguatan kapasitas petani salak menuju pertanian sirkular yang efisien, berkelanjutan, dan berdaya saing di tingkat lokal.
Co-Authors Anjar Siti Mashitoh Arbaiyah, Arbaiyah Cuana, Rona Devi Lestari Dikki Miswanda Hadi, Bagus Sidik Waskito Hartati, Nina Hasibuan, Adelia Yesya Putri Imas Masriah Pangestika, Inten Pratiwi, Pina Budiarti Prisca Caesa Moneteringtyas Rahmat, Nahzim Rambey, Mustafid Amna Ritonga, Fatima Sari Wirjosentono, Basuki Yanti, Elsa Novri