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All Journal Jurnal Fisika Unand JURNAL PENDIDIKAN GLASSER Jurnal Ilmiah Kebidanan Indonesia (Indonesian Midwifery Scientific Journal) Tekper: Jurnal Teknologi dan Manajemen Industri Pertanian Hydrogen: Jurnal Kependidikan Kimia
Rahmawati, Fira
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Agriculture, Biological Sciences & Forestry Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Physics

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Mechanical Characteristics of Plastic Films Made from Potato Peel Waste (solanum tuberosum L.) with Variations of Acetic Acid and CMC Rahmawati, Fira; Hakim, Muhammad Fahmi; Ni’mah, Kamilah Pathun
Tekper : Jurnal Teknologi dan Manajemen Industri Pertanian Vol 4, No 3 (2023):
Publisher : Jurusan Ilmu dan Teknologi Pangan, Fakultas Pertanian,

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/tekper.v4i3.45193

Abstract

West Java produces 1,3 thousand million tons of plastic waste per year. Synthetic plastics have component materials that are not environmentally friendly and can decompose for 20 years, therefor handling is required to overcome the accumulation of plastic waste. 3R (reduce, reuse, recycle) is applicable way example using plastic materials that are easily decomposed. Starch in potato skins can be used as a material for bioplastics components, the purpose of this research is to make plastic films made from potato peel waste (Solanum tuberosum L.), as an alternative natural polymer to alternate petroleum materials. Various concentrations of acetic acid (1% and 2%) and variations of carboxymethyl cellulose (1,5 gr and 2,1 gr) were added to the samples and two repetitions, the result of all is 10 samples. Firstly the potato skins were extracted to extract the starch, then the starch was dried at 40 oC for 8 hours. The procedure for making plastic film is to mix the raw materials and gelatinization at 70 oC for 120 minutes. The plastic film is shaped, dried and finally, it does a mechanical test. The research shows that variations of acetic acid and CMC can increase the mechanical properties of tensile strength, elongation at break, thickness, and water uptake. The best plastic film composition was produced using 1% acetic acid and 2,1 gr CMC. The sample has a tensile strength value of 15,72 N/mm2, elongation at break of 14,29%, thickness of 146,17 µm, and water absorption of 365%.
Hubungan Persepsi, Dukungan Keluarga dan Akses Pelayanan terhadap Partisipasi Pria dalam Keluarga Berencana Dewi, Meinasari Kurnia; Rahmawati, Fira
Jurnal Ilmiah Kebidanan Indonesia Vol 9 No 02 (2019): Jurnal Ilmiah Kebidanan Indonesia (Indonesian Midwifery Scientific Journal) Seko
Publisher : Q PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.546 KB) | DOI: 10.33221/jiki.v9i02.337

Abstract

Partisipasi pria dalam keluarga keluarga berencana adalah salah satu tanggung jawab Pria/ suami dalam kesertaan ber-KB, serta berperilaku seksual yang sehat dan aman bagi dirinya, pasangan dan keluarganya. Tujuan penelitian ini untuk mengetahui hubungan persepsi, dukungan keluarga dan akses pelayanan terhadap partisipasi pria keluarga berencana di wilayah kerja Puskesmas Sukamanah Kec. Megamendung Bogor Jawa Barat Tahun 2017. Penelitian ini menggunakan desain deskriptif anakitik dengan pendekatan Cross Sectional. menggunakan desain deskriptif analitik, pendekatan cross sectional, Metode Acidental Sampling dengan sampel sebanyak 90 responden. Populasi penelitian adalah seluruh pria pasangan usia subur yang Keluarga Berencana. Penelitian ini menggunakan data primer. Hasil analisa bivariat menggunakan uji Chi Square dengan α 5% diperoleh persepsi -value = 0,009 dan OR 3,500, dukungan keluarga -value = 0,001 dan OR 4,884 dan Akses pelayanan -value = 0,010 dan OR 3,667. Kesimpulan terdapat hubungan persepsi, dukungan keluarga dan akses pelayanan terhadap partisipasi pria keluarga berencana diwilayah kerja Puskesmas Sukamanah Kec. Megamendung Bogor Jawa Tahun 2017, saran kepada Puskesmas, diharapkan untuk terus berkoordinasi dalam hal peningkatan jumlah keder kesehatan yang menangani bidang KB dan bagi petugas lapangan keluarga berencana (PLKB) untuk lebih aktif mendatangi rumah-rumah warga dalam memberi penyuluhan atau penjelasan tentang efek samping yang ditimbulkan oleh alat kontrasepsi, bahwa hal tersebut merupakan hal yang biasa diatasi.
PERSONAL COMPETENCIES OF CHEMICAL ENGINEERING STUDENT GRADUATES BEFORE ENTERING THE WORLD OF WORK Rumira, Mayda Su’ad Su'ad; Putri, Leggy Doriyanti Julia; Alfisyahri, Syabrina; Rahmawati, Fira; Alya, Neng Via Nurjanahntul; Patimah, Sri; Sari, Dessy Agustina
JURNAL PENDIDIKAN GLASSER Vol. 7 No. 2 (2023)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Muhammadiyah Luwuk

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Abstract

To be able to survive in a world of work that changes and develops dynamically, humans are required to continue to improve their abilities periodically. Companies not only require good academic skills but also additional skills that support the company's needs. Relevant abilities (hard skills) balanced with qualified interpersonal skills (soft skills) will be very helpful in work. This ability is useful for creating career opportunities or improving career paths. So, students are required to have quality personal abilities before entering the workforce. The purpose of scientific writing is to provide a description of the self-competencies needed by a chemical engineering graduate as evaluation material for preparation for entering the real world of work. soft skills needed by a chemical engineering graduate, such as analytical skills, problem-solving skills, good communication skills, teamwork, and leadership skills. In this era of globalization, communication skills intersect with foreign language skills such as English and Japanese. Some multinational companies expect their employees to be able to speak foreign languages for the smooth operation of the company. Various efforts have been made by Chemical Engineering at Universitas Singaperbangsa Karawang in order to accommodate students and help them develop their potential. Through several activities such as chemical engineering software training, procurement of foreign language classes, and routinely holding public lectures by presenting practitioner teachers from companies. It is hoped that chemical engineering graduates from Universitas Singaperbangsa Karawang will have sufficient provisions to face the world of work.
Analisis Pengaruh Variasi Temperatur Gelatinisasi Pada Sifat Mekanik Film Bioplastik Pati Kulit Kentang (Solanum Tuberosum L.) dengan Asam Asetat dan Plasticizer Gliserol Putri, Leggy Doriyanti Julia; Hakim, Muhammad Fahmi; Rumira, Mayda Su’ad; Ni’mah, Kamilah Pathun; Rahmawati, Fira; Allifiantika, Nindya
Jurnal Fisika Unand Vol 13 No 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.1.153-158.2024

Abstract

Plastik merupakan  rantai polimer dengan rantai atom yang panjang dan saling mengikat satu sama lain. Plastik banyak digunakan dalam kehidupan sehari-hari karena plastik memiliki sifat yang kuat, elastis dan memiliki harga yang terjangkau. Namun, plastik saat ini sulit untuk diurai sehingga perlu inovasi dengan penggunaan bioplastik. Bioplastik merupakan plastik organik yang mampu terurai oleh mikroorganisme. Pembuatan bioplastik dengan menggunakan pati kulit kentang yang diekstraksi. Larutan bioplastik dicampurkan dengan asam asetat 1% dan gliserol sebagai plasticizer. Larutan bioplastik di panaskan pada temperatur 70oC,80oC dan 90oC untuk mengetahui pengaruh temperatur gelatinisasi pada sifat fisik dari bioplastik. Larutan bioplastik kemudian dicetak dan keringkan. Setelah  itu lembaran film bioplastik dilakukan uji sifat mekanik. Temperatur gelatinisasi terbaik temperatur 80oC hal ini dikarenakan hasil pengujian sifat mekanik sampel menunjukan angka tertinggi. Seperti pada uji kuat tarik nilainya mencapai 10,273 MPa. Pada uji perpanjangan putus pada bioplastik dengan temperatur gelatinisasinya 80oC mencapai nilai 11,13%. Uji ketebalan juga menunjukan nilai tertinggi pada temperatur 80oC dengan nilai 185,5 nanometer. Serta pada uji daya serap air nilai penyerapan air hingga 70,5%.
The Influence of Adding Glycerol and Spirulina on The Characteristics of Starch-Based Bioplastics Film from Potato Peel Waste Ni'mah, Kamilah Pathun; Hakim, Muhammad Fahmi; Julia Putri, Leggy Doriyanti; Rahmawati, Fira
Hydrogen: Jurnal Kependidikan Kimia Vol. 11 No. 6 (2023): December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i6.9549

Abstract

The development of bioplastic films is one of the efforts to reduce plastic waste. The polymer used as the basic material for making bioplastic films is starch. Potato peel waste can be repurposed by extracting its starch content. This research has the purpose to investigate the influence of adding glycerol and spirulina on the characteristics of bioplastic films made from potato peel starch, and to ascertain the optimum composition of raw materials. Bioplastics were produced by casting method from potato peel starch with variations of glycerol and spirulina. The bioplastic composition in this research includes K0 (0 ml glycerol and 0 grams spirulina), K1 (2.5 ml glycerol and 0.3 grams spirulina), K2 (1.25 ml glycerol and 0.3 grams spirulina), K3 (2.5 ml glycerol and 0.15 grams spirulina), and K4 (1.25 ml glycerol and 0.15 grams spirulina). The characteristics of bioplastic films include thickness testing, tensile strength, elongation at break, and degradation. The results from the characterization of bioplastic films indicate that the addition of glycerol and spirulina is inversely proportional to the tensile strength produced, meaning it decreases. However, the addition of glycerol and spirulina is directly proportional to the percentage of elongation produced, meaning it increases. The addition of spirulina has an impact on the degradation time of bioplastic films. The optimal raw material ratio in this research is found in sample K4, with a tensile strength value of 23.038 MPa, elongation at break of 4.385%, thickness of 0.1367 mm, and complete degradation occurring on the sixth day.
Co-Authors Alfisyahri, Syabrina Allifiantika, Nindya Alya, Neng Via Nurjanahntul Dessy Agustina Sari Dewi, Meinasari Kurnia Hakim, Muhammad Fahmi Julia Putri, Leggy Doriyanti Ni'mah, Kamilah Pathun Ni’mah, Kamilah Pathun Ni’mah, Kamilah Pathun Patimah, Sri Putri, Leggy Doriyanti Julia Rumira, Mayda Su’ad Rumira, Mayda Su’ad Su'ad