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All Journal Natural B Indonesian Journal of Pharmaceutical Science and Technology JP3 (Jurnal Pendidikan dan Profesi Pendidik) Science and Technology Indonesia Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Penelitian Pendidikan IPA (JPPIPA) Jukung (Jurnal Teknik Lingkungan) Jurnal Biologi Tropis JMM (Jurnal Masyarakat Mandiri) ORBITA: Jurnal Pendidikan dan Ilmu Fisika SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA Jurnal Pengabdian Magister Pendidikan IPA Jurnal Pendidikan Fisika dan Teknologi EIGEN MATHEMATICS JOURNAL Indonesian Physical Review Kappa Journal Instructional Development Journal Informatika Jurnal Ilmiah Farmako Bahari Acta Chimica Asiana Jurnal Komunitas: Jurnal Pengabidian Kepada Masyarakat Jurnal Abdi Insani Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Jurnal Warta Desa (JWD) Jurnal Begawe Teknologi Informasi Kreasi: Jurnal Inovasi dan Pengabdian Kepada Masyaraka Jurnal Pepadu INSANTA: JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pertambangan dan Lingkungan Journal of Technology, Mathematics and Social Science (J'THOMS) Journal of Fisheries & Marine Wahana Fisika : Jurnal Fisika dan Terapannya Journal of Theological Students
Susi Rahayu
Program Studi Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Mataram
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : Kappa Journal

 1 
Eksplorasi Limbah Tulang Sapi Sebagai Sumber Biomaterial Hidroksiapatit Alimuddin Alimuddin; Susi Rahayu
Kappa Journal Vol 6 No 2 (2022): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v6i2.6885

Abstract

The abundance of cow bone waste in West Nusa Tenggara has not been in line with proper treatment. Cow bones contain a lot of apatites that can be modified into raw materials for the fabrication of hydroxyapatite. The need for hydroxyapatite as bone graft biomaterials increase in Indonesia continuously. The study aims to identify the appropriate preparation method for extracting hydroxyapatite from cow bone. Mechanical and thermal techniques are used to extract the cow bone. The method utilizes heat energy and mechanical energy to achieve hydroxyapatite. The extracted powder from cow bone was identified the ratio of Ca/P using EDX, calculated the yield of the fabricated product, measured its bulk density, and placed its functional group by FTIR. The results reveal that the best preparation method to acquire hydroxyapatite is by extracting the compact bone of bovine. The compact bone is macerated with alcohol for 12 hours and calcined at a temperature of 9500C for three hours. The apatite has a Ca/P ratio of 2.25, yielding 66.53%, and a bulk density of 1.18 g/cm3. Typical hydroxyapatite groups that emerge from apatite powder are the presence of functional groups OH, PO43-, and CO32-. This preparation method also has powders with unidentified C-H functional groups. The fact of this variety indicates the powder does not contain organic elements that can be at risk of rejection by the human body. Therefore, the apatite extracted from cow bone can be used as a safe biomaterial for the human body.
Isolasi Kitosan dari Cangkang Kerang Mutiara (Pinctada maxima) Menggunakan Deasetilasi Dengan Gelombang Mikro Rahayu, Susi; Destrianingtyas, Aulia Safitri; Ridho Illahi, Ramadian; Kurniawidi, Dian W.
Kappa Journal Vol 8 No 2 (2024): Agustus
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i2.27166

Abstract

Kitosan merupakan biopolimer turunan dari hasil deasetilasi kitin, yang berkembang pesat di dunia medis saat ini. Kitosan salah satu material yang memiliki sifat anti mikroba, biokompatibel, dan biodegradable sehingga aman bagi tubuh manusia. Penelitian ini dilakukan untuk mengidentifikasi pengaruh daya gelombang mikro terhadap karakteristik kitosan. Pembuatan kitosan dengan mengisolasi kitosan dari cangkang kerang Mutiara (Pinctada maxima sp) melalui proses deproteinasi, demineralisasi, dan deasetilasi. Kitosan di analisis gugus fungsi, derajat deasetilasi, rendemen, berat molekul, dan struktur kristalnya. Pada tahapan deasetilasi mengunakan NaOH 60%. Hasil penelitian menunjukkan bahwa pemberian gelombang mikro dengan daya high selama 5 menit memperoleh nilai derajat deasetilasi tertinggi 83,40%, rendemen akhir sebesar 8,2%, dan berat molekul 222.185,94 Da, serta memiliki derajat kristalinitas sebesar 59,09%. Derajat deasetilasi kitosan meningkat seiring dengan naiknya daya gelombang mikro sedangkan berat molekul yang dihasilkan berbanding terbalik dengan derajat deasetilasi.
Studi Pengaruh pH Terhadap Stabilitas Warna dan Kuat Tarik Kain Katun dengan Pewarna Alami Antosianin Rahayu, Susi; Lestari, Sintya Dewi; Budianto, arif; Alaydrus, Alfina Taurida; Akhyar, Halil
Kappa Journal Vol 9 No 1 (2025): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v9i1.29595

Abstract

Lombok has become one of the leading tourist destinations, especially with the development of the Mandalika Special Economic Zone. One of the cultural products that has the potential to be offered to tourists is Lombok traditional weaving. The study aims to analyze the effect of the pH of the dye solution on the characteristics of the dyed fabric. The research method uses a mechanical thermal method to obtain anthocyanin powder extraction, standard staining methods namely mordan, staining, and fixation, as well as characterization using tensilons, Color Analyzer software, Hooloovoo, and Encycolorpedi website. The extraction of anthocyanin compounds from teak leaves (Tectona grandis) was successfully carried out by mechanical thermal method. Color analysis and identified color changes are significantly affected by differences in solution pH. The higher the pH used, the darker the color will be produced and the higher the level of color fading in the fabric. The smallest  E value is at pH 6 =5.364 and the largest  E value is at pH 14 = 17.145. However, an increase in pH tends to increase the tensile strength of the fabric. However, the optimum tensile strength condition was obtained in a solution of pH 12, which was 17.414 MPa, while at pH 13 and pH 14, the tensile strength of the fabric decreased to 16.071 MPa. Based on the analysis of the influence of pH of dye solution on fabric tensile strength, it was identified that a 6th-order polynomial model (determination coefficient R2 = 0.9479) was identified as accurate enough to model the influence of pH on fabric tensile strength. Therefore, this finding has potential in the textile industry, especially in increasing the economic value of Lombok weaving.
Aplikasi Senyawa Antosianin dari Daun Jati (Tectona Grandis) Sebagai Pigmen Warna Alami pada Kain Katun Rahayu, Susi; sasabila, sasabila; Wirawan, Rahadi; Kurniawidi, Dian W
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.7877

Abstract

Kain tenun dari desa Sade merupakan salah satu produk tenun yang masih memegang teguh warisan leluhur dalam proses pembuatannya. Mulai dari proses pemintalan benang, sizing benang, hingga proses pewarnaan benang masih memanfaatkan metode tradisional dan bahan alami. Penggunaan serbuk pewarna alami sebagai pewarna kain katun dapat meningkatkan kualitas benang. Salah satu caranya melalui modifikasi ukuran partikel serbuk pigmen warna. Sehingga perlu dilakukan penelitian untuk mengidentifikasi pengaruh penambahan filler maltodiekstrin terhadap karakteristik serbuk senyawa antosianin. Adapun tujuan lain yaitu untuk mengidentifikasi pengaruh penambahan filler maltodiekstrin terhadap karakteristik warna kain. Pembuatan senyawa antosianin menggunakan metode maserasi dan evaporasi. Dimana karakteristik serbuk yang diperoleh diukur kadar air nya dengan pengujian proximate. Sedangkan pengukuran indeks polidispersitas dan ukuran partikel menggunakan particle size analizer  (PSA). Untuk karakteristik warna menggunakan software berbasis android  yaitu analisis nama warna dengan colorpedia, nilai ∆E dan RGB dengan color tool dan  color grab. Hasil identifikasi karakteristik serbuk menunjukkan bahwa penambahan filler mempengaruhi kadar air, ukuran, dan indeks polidispersitas serbuk senyawa antosianin. Serbuk dengan penambahan filler 15% menghasilkan kadar air terendah 10,39 %, ukuran terkecil 521,9 nm, dan indeks polidispersi terkecil 0,429. Selain itu, karakteristik warna yang dihasilkan dari penambahan filler memiliki warna dasar yang tidak jauh berbeda yaitu merah kecokelatan. Namun, hal yang berbeda adalah tingkat kelunturannya. Dari nilai ∆E, penambahan filler 15% menghasilkan kelunturan yang paling rendah. Sehingga, serbuk senyawa antosianin hasil ekstraksi dapat diaplikasikan sebagai pewarna pada kain katun. penambahan filler maltodiekstrin 15% direkomendasikan sebagai alternatif pembuatan serbuk pewarna yang diaplikasin pada kain katun.
Efektivitas Jumlah Lubang Pada Tabung Pembakaran Terhadap Performa Kompor Biomassa Rahayu, Susi; Ridwansyah, Habib; Kurniawidi, Dian Wijaya; Handayana, I G N Yudi; Alaa`, Siti; Budianto, Arif
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.25335

Abstract

Global energy requirements encourage innovations in developing environmentally friendly alternative energy sources by transforming biomass waste into biopellets. The use of biopellets as fuel was followed by the development of biomass stoves for households. Developing biomass stove technology design is essential, so this research aims to design a biomass stove with good performance for use as a household stove. Stove performance was identified by reviewing the biomass stove's fuel consumption and thermal efficiency relative to the number of combustion holes. The biomass stove fabrication results had been successfully created based on a stove design using galvanized plate material. The design focused on three layers of tubes, including the stove frame, the air supply control, and the combustion tube. The number of holes in the combustion tube affected fuel consumption and the thermal effectiveness of the stove. The lowest fuel consumption on a furnace with six combustion holes was 2,306 kg/hour. Meanwhile, the optimal thermal efficiency for burning 18 holes was 16.17%. However, this thermal efficiency value needs to meet the SNI 7926: 2013 standard. The location and number of combustion holes in the combustion tube could influence the performance of the biomass stove. Therefore, it is important to modify biomass stoves to fulfill SNI standards.
Co-Authors ABDUL GANI abdurrouf Abdurrouf Afiatul Hafifah Agista, Wida Puteri Agus Saputra Agus Wahid H Ahmad Risandi F. Ahmad Taufik Ahmad Taufik S Alaa', Siti Alaa, Siti Alaa, Siti Alaa`, Siti Alawiyah, Geby Alaydrus, Alfina T. Alaydrus, M. Mukaddam Alaydrus, Mukaddam Alda Berlian Alfina Alaydrus Alfina Taurida Alaydrus Alhadi, Kasnawi Alhaqiqi, Candra Alimuddin Alimuddin Amirrah, Reffa Amrul Ikhsan Amrulloh, Ashfia Andini, Mira Anggie Dwi P. Anggriani, Ni Ketut Ansyori, Maz Isa Anto Wahyu Prastyo, Andri Arif Budianto Arif Budianto Arif Budianto Arum, Maysaroh Arzyl Akbar Baiq Niswatul Khair Baiq R. S. Yusuf Bakti Sukrisna Bambang Sumardjoko Cahyawati, Triyana Dyah Darsinah Darsinah Deasy Mariyani Desti Olga Safitri Destrianingtyas, Aulia Safitri Dewi Handayani Dewi, Diah L. Diah L. Dewi Dian W Kurniawidi Dian W. Kurniawidi Dian W. Kurniawidi Dian Wijaya Kurniawidi Dian Wijaya Kurniawidi Djoko H Santjojo Djoko H. Santjojo Dodi Mariadi Dona, Dona Dwiyansaputra, Ramaditia Eka Rahmawati Eka Rahmawati Enggar Juwanda K. Ervina Sandra Dewi Eva Nurhaliza Eva Nurhaliza Fadila, Naila Fadli Robiandi Fajarica, Shinta Desiyana Fajriah, Baiq Nurul Fajriyah, Putri Arifatul Fidya, Karina Alma Fitri Bimantoro Hadi, Kasnawi Al Halil Akhyar Hamidi, M. Zaenuddin Hamidi, Mohammad Zaenuddin Handayana, I G N Yudi Handayana, I Gusti Ngurah Yudi Handayana, I Gusti Ngurah Yudi Hasanah, Khofizzatul Hendrawan Hendri Maradona, Hendri Hidayatullah, Kholik Hiden - Hiden Huan Ahmad T. Hurnah Hurnah, Hurnah Huwaida, Maitsa I Wayan Sudiarta Ichsan, Andi Chairil Inatsa, Najma Intan Utami Intan Utami Isa A.A, Maz Iwan Sumarlan Jannah, Sahlli Jazuly, Zaky Juniarti, Rosita Kasnawi Al Hadi Khusnul Khotimah Kiki Yasdomi Kormil Saputra Kurniawan Yuniarto Kurniawidi, Dian W Kurniawidi, Dian W. Kurniawidi, Dian Wijaya Laeli, Ida Lahir, Sri Laili Mardiana Lalu A Didik Lalu A Didik Lalu A. Didik Lalu Sahrul Hudha Legi Aprila Lestari, Sintya Dewi Lily Maysari Angraini Liza Umitasari Mammi Dwi R. Marlina, Resti Marzuki Marzuki Marzuki Marzuki Masruroh Masruroh Maulana, Sutan Fajri Meilani, Dini Moh. Bahtiar Muh. Alfaris Muhamad Ali Muhamad Ali Muhamad Ali Muhamad Amin Muhamad Amin Muhammad Fajrin Muhammad Maulana Mustafid, Azhar Nadila Rahmawati Nafsiatil Afro', Maulina Nurfadilah Nurfadilah Nurfadilah Nurhidayati Nurhidayati Nurlaili Nurlaili Nurliah Buhari Nurmaulida, Siti Ema NURUL QOMARIYAH Oktri P, Awanda Pertiwi, Shavira Pranahita, Dewa Dwi Purnaning, Dyah Putraji, L.M. Guguh Raisa, Daeva Ramadian Ridho Illahi Reza Alfian Ridwansyah, Habib Rohani Sayuti Rubi'ah, Siti S., RR. Delima Sabrina, Sovia sasabila, sasabila Septiani, Nonik Setyawan P Sakti Setyawan P. Sakti Shomad, Moh Abdul Sinta Devi Hariyanti Siti Alaa Siti Alaa Siti Alaa’ Sri Mulyani Suhayat Minardi Suhayat Minardi Sunita, Asfa Syamsuddin Syamsuddin Syamsuddin Syamsuddin Syamsuddin Teguh Ardianto, Teguh Thathit Suprayogi Utami, Urfi Wafrotur Rohmah Wahana, Lidia Wahyudi, Sopian Ari Wardi, Palaivia Harman Wijaya Kurniawidi, Dian Wirawan, Rahadi Wirawan, Rahadi Zahrah Ramadlan Mubarokah Zubaidi, Ariyan