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All Journal Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Komunikasi Fisika Indonesia Jurnal Teknosains Jurnal Fisika Unand JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX ZERO : Jurnal Sains, Matematika dan Terapan Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Redoks Zero : Jurnal Sains, Matematika, dan Terapan JISTech (Journal of Islamic Science and Technology) Fisitek : Jurnal Ilmu Fisika dan Teknologi JURNAL PENDIDIKAN TAMBUSAI JOURNAL OF SCIENCE AND SOCIAL RESEARCH Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya Jurnal Elemen Jurnal Kumparan Fisika Pascal: Journal of Physics and Science Learning Jurnal Fisika dan Terapannya Navigation Physics : Journal of Physics Education Mimbar Kampus Journal of Technomaterial Physics Jurnal Energi Baru dan Terbarukan CHEDS: Journal of Chemistry, Education, and Science Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA) EINSTEIN (E-JOURNAL) Jurnal Ilmu dan Inovasi Fisika
Ety Jumiati
Universitas Islam Negeri Sumatera Utara
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Pengaruh Kulit kakao dan Biji kakao Terhadap Uji Fisis Briket Bioarang Menggunakan Perekat Getah Damar Azmi, Afifah; Sirait, Ratni; Jumiati, Ety
Jurnal Fisika Unand Vol 13 No 2 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.2.268-274.2024

Abstract

Telah dilakukan pembuatan briket bioarang yang merupakan arang yang terbuat dari aneka macam bahan hayati atau biomassa seperti kayu, ranting dan limbah pertanian, bertujuan untuk mengetahui karakteristik  dan komposisi yang paling optimal pada pembuatan briket bioarang menggunakan kulit kakao dan biji kakao dengan perekat getah damar. Variasi komposisi kulit kakao dan biji kakao dengan perekat getah damar antara lain sampel A (50%:30%), B (40%:40%) dan C (30%:50%). Parameter uji fisika dan kimia meiliputi: kadar air, kadar abu, nilai kalor, kadar zat teirbang dan kadar karbon. Hasil uji fisika dan kimia brikeit bioarang kulit kakao dan biji kakao dipeiroleih brikeit bioarang yang optimal yaitu pada sampeil B yaitu nilai kadar airnya 7,35%, nilai kadar abu 6,40%, nilai kalor 6028 cal/g nilai kadar zat teirbang 16,20% dan nilai kadar karbon 70,05%. Sampeil brikeit bioarang teilah seisuai SNI No. 01-6235-2000 teintang brikeit arang.
Pengaruh Penambahan Bulu Ayam dan Serbuk Kayu Terhadap Uji Fisis Papan Partikel Aruan, Ririn sagita; Jumiati, Ety; Husnah, Miftahul
Jurnal Fisika Unand Vol 12 No 4 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.12.4.646-650.2023

Abstract

Penelitian ini bertujuan untuk mengetahui sifat fisis papan partikel yang terbuat dari bahan serbuk kayu dan limbah bulu ayam. Variasi komposisi bulu ayam, serbuk kayu dan perekat resin epoxy berturut-turut yaitu : sampel A(5%:50%:45%), B(10%:45%:45%), dan C(15%:40%:45%). Parameter uji fisis meliputi kerapatan, kadar air dan pengembangan tebal. Hasil uji fisis papan partikel berbahan bulu ayam, serbuk kayu dan perekat resin epoxy yang optimal terdapat pada sampel C dengan nilai kerapatan 0,60 g/cm3, kadar air 7,85%, dan pengembangan tebal 10,4%. Pada penelitian ini sampel telah sesuai SNI 03-2105-2006 dan papan partikel ini masuk pada penggunaan umum (struktural).
Karakteristik Sifat Fisika dan Kimia Terhadap Pembuatan Briket Arang Kulit Salak Dengan Penambahan Perekat Getah Karet Munawaroh, Siti; Sirait, Ratni; Jumiati, Ety
Jurnal Fisika Unand Vol 13 No 3 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.3.358-364.2024

Abstract

Dilakukan penelitian pembuatan briket arang menggunakan bahan utama kulit salak dan divariasiasikan antara kulit salak dan perekat tepung tapioka yang di tambah getah karet  kulit salak yakni : sampel A (70%:30%), B (60%:40%), dan C (50%:50%), formula perekat dan air  (1:3), dan dikeringkan hingga 7 hari. Pengujian pada penelitian yakni : uji fisika dan kimia mencakup  kadar air, nilai kalor, kadar abu, kadar zat terbang juga kadar karbon. Didapatkan briket arang kulit salah yang bagus dari hasil dari pengujian fisika dan kimia yakni di sampel A (70%:30%) dengan persentaase air 4,13%, persentase kalor 4.707 Cal/g, persentase abu 6,42%, persentase zat terbang 6,27% serta persentase karbon 76,42%. Sampel briket arang sudah setara di SNI No. 01-6235-2000 jadi, briket arang bisa diaplikasikan di ruang lingkup rumah tangga.
Pemurnian Minyak Goreng Jelantah Menggunakan Karbon Aktif Tempurung Kelapa dengan Aktivasi Fisika Jumiati, Ety; Nanda, Meutia
Jurnal Fisika Unand Vol 13 No 2 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.2.254-260.2024

Abstract

Minyak goreng merupakan kebutuhan pokok yang diperlukan untuk menggoreng makanan. Dikatakan baik suatu minyak goreng bila minyak goreng berwarna bening kekuningan dan terbuat dari tumbuhan serta hewani yang diolah secara buatan. Penelitian ini bertujuan untuk memurnikan minyak goreng jelantah menggunakan karbon aktif tempurung kelapa dengan aktivasi fisika sebagai adsorben. Hasil penelitian ini memperoleh bau dan rasa normal, warna, normal, nilai kadar air: 0,06% dan nilai ALB: 0,15% yang nilainya tidak melebihi dari standar maksimum yang dipersyaratkan SNI 7709:2019
EFFECTIVENESS OF THE FILTRATION METHOD USING ACTIVATED CARBON FROM KEPOK BANANA PEELS AND ZEOLITE TO REDUCE KMnO4 LEVELS Jumiati, Ety -; Husnah, Miftahul -; Asyari, Auly -
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.7, N
Publisher : Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v7i1.40520

Abstract

The effectiveness of the filtration method using activated carbon from Kepok banana peels and natural materials such as zeolite has been studied. This research aims to reduce KMnO4 levels in well water so that it can be used for human needs. The well water samples used in the testing process with the filtration method were taken from a well located in Medan Marelan District, Tanah 600 Sub-district, North Sumatra Province. The utilization of Kepok banana peels for activated carbon to reduce KMnO4 levels involved using the chemical activator HCl 3M for 7 hours and an activation temperature of 600ºC for 45 minutes. The variations in composition used in the filtration method were sample A (75%:25%), sample B (50%:50%), and sample C (25%:75%). The most effective filtration result in reducing KMnO4 levels was sample A, with a KMnO4 reduction of 86.7%, which meets the clean water quality standards according to PERMENKES RI No 32 of 2017.
Karakteristik Uji Gramatur dan Daya Regang pada Kertas Berbahan Kulit Ubi dan Fiber Sawit Titi Winda Sari; Ety Jumiati; Miftahul Husnah
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 3 (2025): Desember : JURRIMIPA: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i3.7984

Abstract

The increasing demand for paper has led to a shortage of wood-based raw materials, thus requiring environmentally friendly alternatives. This study aims to analyze the physical, mechanical, and morphological characteristics of paper made from cassava peels (Manihot esculenta Crantz) and oil palm fruit fibers (Elaeis guineensis Jacq.) as eco-friendly paper raw materials. The research method involved pulp preparation through delignification using 3.5% HNO₃ and 3% NaOH, bleaching with 10% H₂O₂, paper sheet formation with varying compositions (A = 70:30, B = 50:50, C = 30:70, D = 10:90), followed by grammage testing and tensile strain testing. The results showed that the grammage values ranged between 96.3–99.7 g/m², while tensile strain ranged between 2.6–4.4%. The study concluded that the best composition was found in sample C (30% cassava peel : 70% palm fiber) with a grammage of 98.5 g/m² and tensile strain of 3.2%. The implication of this study is that cassava peel and palm fiber waste have the potential to serve as alternative paper raw materials that meet the quality standards of A-grade printing paper (SNI 7274:2008), while also supporting the reduction of dependence on wood.
Pengaruh Densitas Terhadap Kuat Tekan Pada Pembuatan Paving Block Dengan Penambahan Goni Plastik Harahap, Sarah Aprilia; Masthura, Masthura; Jumiati, Ety
Rekayasa Material, Manufaktur dan Energi Vol 9, No 1: JANUARI 2026
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v9i1.26377

Abstract

This study aims to determine the effect of adding plastic jute on the physical and mechanical properties of paving blocks, as well as to determine the optimal mixture composition. Plastic jute is used as an additional material in the paving block mixture along with sand and cement. Three composition variations were used in this study: Sample A (1% plastic jute, 64% sand, 35% cement), Sample B (3% plastic jute, 62% sand, 35% cement), and Sample C (5% plastic jute, 60% sand, 35% cement). Tests were conducted on the density and compressive strength of the paving blocks. The test results showed that Sample A had the highest density (1886.57 kg/m³), a compressive strength of 10 Mpa. These values meet SNI standards and indicate the best quality compared to other samples. Samples B and C have lower values, especially in water absorption and compressive strength. Thus, the addition of plastic jute significantly affects the quality of paving blocks, and the most optimal composition is found in Sample A. The use of plastic jute not only improves the characteristics of paving blocks but also helps reduce plastic waste in the environment.
Peningkatan Mutu Kertas Cetak A Berbasis Kulit Talas Dan Serat Sawit Pada Sifat Fisis Sari, Devi Kumala; Jumiati, Ety; Daulay, Abdul Halim
Rekayasa Material, Manufaktur dan Energi Vol 9, No 1: JANUARI 2026
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v9i1.26666

Abstract

Paper is a thin material in the form of sheets that is one of the basic needs used by the community, paper is produced from the compression of fibers derived from pulp containing cellulose. This study aims to determine the characteristics of the paper produced and to determine the effect of the composition of the mixture of taro peel pulp and oil palm fruit fiber on paper quality. This study used the soda method, with variations in the weight of samples A (65%: 35%), B (45%: 55%), and C (25%: 75%). Taro peel and oil palm fruit fiber were first cooked with a 10% acetic acid solution, then bleached using a 10% H₂O₂ solution, then dried. The characterization results of the samples showed that sample C was the optimum sample with a grammage test value of 88 g/m2, a bulk test value of 1.25 cm3/g, and a SEM test value of 9,7089. This value shows that sample C has fulfilled some of the standard of SNI 7274:2008, so it can be concluded that the composition of taro peel pulp and oil palm fruit fiber produces paper with quite good quality.
PENINGKATAN NILAI UJI BULK DAN NILAI DAYA REGANG PADA MUTU KERTAS CETAK A Hayat, Lisa Fadhilah; Jumiati, Ety; Husnah, Miftahul
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 9, No 1 (2026): February 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i1.5718

Abstract

Abstract: This study was conducted to determine the improvement of bulk and elongation in Printing Paper A made from cassava peel and oil palm fiber. Using an experimental method and a quantitative approach, the material composition variations were as follows: sample A (80%:20%), sample B (60%:40%), sample C (40%:60%), and sample D (20%:80%). The pulp-making process was carried out with chemical treatment using 3% NaOH and 3.5% HNO₃ solutions, followed by bleaching with 10% H₂O₂, then dried and formed into paper sheets. Characterization was conducted based on SNI 7274:2008. The bulk test results were 1.073 cm³/g for sample A, 1.088 cm³/g for sample B, 1.090 cm³/g for sample C, and 1.096 cm³/g for sample D. The elongation results were 1.589% for sample A, 0.682% for sample B, 2.800% for sample C, and 2.800% for sample D. This study shows that the higher the proportion of oil palm fiber, the more significant the contribution to the increase in bulk and elongation values of the paper. Keyword: Bulk, Cassava Peel, Elongation, Palm Fiber, Paper Abstrak: Penelitian ini dilakukan untuk menentukan peningkatan bulk dan daya regang pada kertas cetak A berbahan kulit ubi dan serat sawit. Dengan menggunakan metode eksperimen dan pendekatan kuantitatif, variasi komposisi bahan adalah sebagai berikut: sampel A (80%:20%), sampel B (60%:40%), sampel C (40%:60%), dan sampel D (20%:80%). Proses pembuatan pulp dilakukan dengan perlakuan kimia menggunakan larutan NaOH 3% dan HNO₃ 3,5%, dilanjutkan dengan pemutihan menggunakan H₂O₂ 10%, kemudian dikeringkan dan dicetak menjadi lembaran kertas. Karakterisasi dilakukan berdasarkan SNI 7274:2008. Hasil uji bulk adalah 1,073 cm3/g untuk sampel A, 1,088 cm3/g untuk sampel B, 1,090 cm3/g untuk sampel C, dan 1,096 cm3/g untuk sampel D. Hasil daya regang adalah 1,589% untuk sampel A, 0,682% untuk sampel B, 2,800% untuk sampel C, dan 2,800% untuk sampel D. Penelitian ini menunjukkan bahwa semakin tinggi peningkatan proporsi serat sawit memberikan kontribusi signifikan terhadap kenaikan nilai bulk dan daya regang kertas. Kata kunci: Bulk, Daya Regang, Kertas, Kulit Ubi, Serat Sawit
The Effect of Grammage on Bulk in A-Grade Printing Paper Based on Taro Skin and Oil Palm Fronds Putri Nadila; Ety Jumiati; Miftahul Husnah
EINSTEIN (e-Journal) Vol. 14 No. 1 (2026): EINSTEIN (e-Journal)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/hgh4na76

Abstract

The use of wood as the main raw material for paper production causes environmental problems such as deforestation. This study aims to analyze the physical characteristics of paper made from taro skin and oil palm fronds through the parameters of grammage and bulk. Grammage and bulk are important parameters in determining the quality of printing paper A according to SNI 7274:2008. The composition variations used were samples A (60%:40%), B (40%:60%), and C (20%:80%). The results show that the lowest grammage value is 79 g/m2 in the 20%:80% variation and the highest grammage value is 90 g/m2 in the 60%:40% variation. For bulk testing, the lowest value was 1.11 cm3/g in the 20%:80% variation and the highest bulk value was 1.46 cm3/g in the 60%:40% variation. All samples met the SNI 7274:2008 standard for A-grade printing paper, with a grammage limit of 50-100 g/m2 and a maximum bulk of 1.5 cm3/g. Increasing the proportion of oil palm fronds reduced the grammage but increased the bulk. This study proves the potential of taro skin and oil palm fronds as raw materials for environmentally friendly paper.
Co-Authors ., Masthura Abdul Halim Daulay Adiani Nasution, Arfa Afifah Azmi Aiysah Hannum Pulungan Ananda Tira Septiana Sari Ananda, Putri Dwi Arif Amri Panggabean Armais Mutiah Abdul Hidayat Aruan, Ririn sagita asnitha aritonang Asyari, Auly - Ayu Amalya Rahma Ayu Dwi Retno Azmi, Afifah Bayu Anugrah KS Br Lubis, Lailatul Husna Dian Frasisca Dika Prananda Dimas Pratama, Dimas endang sagita ritonga Ervina Putri Wulandari Fazira, Natasya Aulia Harahap, Nurlaila Sari Harahap, Sarah Aprilia Hayat, Lisa Fadhilah Husna Br. Lubis, Lailatul Husnah, Miftahul - Hutauruk, Siti Aulia Ismail Husein, Ismail Khairunnisa, Umi Khairunnisa khofifah khofifahparawansyah Kiki Noviansyah Lubis, Fadilah Azzahra Masthura Masthura, Masthura Masthura, Masthura Masturah Masturah Mella Yolanda Alfika Meutia Nanda Miftahul Husnah Miftahul Husnah Miftahul Husnah Mughiroh, Hafizul Mulia Ningsih Nabilah, Cinthia Farah Nanda Putri Afrilda Nanda, Meutia Nasution, Annisa Salsha Safira Nasution, Annisa Wulan Dhari Nasution, Nazaruddin Nazaruddin Nasution Nia Soraya Niken Ayu Ningsih, Mulia Nita Zahara Nasution Noviansyah, Kiki Nujulia Subuharni Nur Ainun Munthe Nur Aisah Sagala Nur'aini Fadillah Nurfebia, Karina Nurhayati Nurhayati Nurlaila Sari Harahap Pratiwi, Pebi Ajeng Putri Indah Sari Putri Nadila Rachmaini, Alya Rahmad Rani Saputri Ratni Sirait Ratni Sirait Ratni Sirait Ratni Sirait, Ratni Riadina Siregar Ridwan Yusuf Lubis Ridwan Yusuf Lubis Rika Ramtika Rika Safitri Ririn sagita Aruan Rizki Qorina Safina, Nurul Sandi Tri Febriani Sari, Devi Kumala Sariah, Jati Nur Silalahi, Homsiah Mayang Sari Siti Munawaroh Siti Munawaroh Siti Putri Masyitah Siti Rahma Daulay Sonia Tampubolon Srg, Dini Anggraini Sri Ayu Lestari Sri Wahyuni Ritonga Suci Amanda Suci Sulkha, Amalia Sunny Nafisah Tambunan, Efrida Pima Sari Tia Rahmadani Tiara, Finky Manda Titi Winda Sari Tri Ninda Malika ufik eliati tumanggor Umairoh, Ninda