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JST ( Jurnal Sains Terapan )
Published by Politeknik Negeri Balikpapan
ISSN : 24068810     EISSN : 24775525     DOI : -
Core Subject : Education, Social,
Mathematics Social Sciences Other
JST (Jurnal Sains Terapan), dengan ISSN 2477-5525 (media online) dan 2406-8810 (media cetak) adalah media publikasi hasil penelitian dibidang Social Cience, Sains Terapan dan Matematika Terapan.
Arjuna Subject : -
Articles 164 Documents
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Rancang Bangun Panel Listrik 3 Phase Untuk Kegiatan Praktikum Di Laboratorium Instalasi Listrik Kussoy, Steven Daniel; Prasetyo, Julyar; Widodo, Slamet
JST (Jurnal Sains Terapan) Vol 10, No 2 (2024)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v10i2.1937

Abstract

The Electrical Installation Laboratory of the Electrical Engineering Department of the Balikpapan State Polytechnic does not yet have a 3 phase electrical installation and panels for practicums that use a 3 phase electric motor power circuit in order to install and assemble the power circuit. Vocational-based higher education that provides knowledge of industrial machines to students of the Electronics Engineering Study Program and electric motor electricity to students of the Electrical Technology Study Program is very important for getting to know, deepening and practicing knowledge about 3 phase electricity and 3 phase electric motor circuits for industrial automation purposes because of the material This knowledge really exists and is required to be known in the industrial world. A 3 phase electrical panel is a device that functions to divide, channel and distribute electrical power from an electricity source/center to consumers/users, especially electrical installation laboratories that serve education, research and community service. The aim of this research is to build a 3 phase electrical panel in the Electrical Installation Laboratory so that students can practice using 3 phase electrical voltage. This research method is an experimental method, consisting of 4 stages, namely starting with literature study, designing and making tools, testing tools and collecting data and finally the tool implementation stage. The test results in this research show that the voltage output from the MCCB has produced an average voltage of 380V for 3 phase voltage and 220V for 1 phase voltage, and is in accordance with PUIL 2011 standards so that the voltage distributed from the MCCB is safe and ready to be used to be transmitted to the socket. 3 phases. This research will be very useful in developing electrical installation laboratories and applied technology in the field of electronics and electricity. Keywords : 3 phase electricity, installation, electrical panels, electric motors, electronics and electricityLaboratorium Instalasi Listrik Jurusan Rekayasa Elektro Politeknik Negeri Balikpapan belum memiliki instalasi listrik 3 phase dan panelnya untuk praktikum yang menggunakan rangkaian daya motor  listrik 3 phase agar dapat memasang dan merakit  rangkaian daya. Pendidikan tinggi berbasis vokasi yang memberikan ilmu mesin industri kepada mahasiswa Program Studi Teknik Elektronika dan kelistrikan motor listrik kepada mahasiswa Program Studi Teknologi Listrik sangat penting untuk mengenal, memperdalam dan mempraktikkan ilmu mengenai listrik 3 phase dan rangkaian motor listrik 3 phase untuk tujuan otomasi industri karena materi ilmu tersebut sangat ada dan dituntut untuk tahu di dunia industri. Panel listrik 3 phase adalah sebuah perangkat yang berfungsi membagi, menyalurkan dan mendistribusikan tenaga listrik dari sumber/pusat listrik kekonsumen/pemakai khususnya laboratorium instalasi listrik yang melayani pendidikan, penelitian, dan pengabdian kepada masyarakat. Tujuan Penelitian ini adalah membangun panel listrik 3 phase di Laboratorium Instalasi Listrik sehingga mahasiswa dapat praktik menggunakan tegangan listrik 3 phase. Metode penelitian ini adalah metode eksperimental, terdiri dari  4 tahapan yaitu diawali dengan studi literatur, perancangan dan pembuatan alat, pengujian alat dan pengambilan data serta terakhir tahap implementasi alat. Hasil pengujian pada penelitian ini menunjukkan bahwa keluaran tegangan dari MCCB sudah menghasilkan tegangan rata-rata 380V untuk tegangan 3 phase dan 220V untuk tegangan 1 phase, serta sesuai standar PUIL 2011 sehingga tegangan yang disalurkan dari MCCB sudah aman dan siap digunakan untuk diteruskan ke stop kontak 3 phase. Penelitian ini akan sangat bermanfaat dalam pengembangan laboratoratorium instalasi listrik dan ilmu teknologi terapan dalam bidang elektronika dan kelistrikan. Kata kunci :  listrik 3 phase, instalasi, panel listrik, motor listrik, elektronika dan kelistrikan
Modifikasi Tepung Sukun dan Pengaruhnya terhadap Susut Masak dan Sifat Sensosris Meat Analog Cholidah, Nungky Rahmawati; Muflihati, Iffah; Suryani, Silvia Dwi; Oktaria, Taskiya Sindy; Febriyanti, Amanda Feronia; Umiyati, Rini; Nurdyansyah, Fafa
JST (Jurnal Sains Terapan) Vol 11, No 1 (2025)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v11i1.2249

Abstract

Buah sukun memiliki kandungan karbohidrat yang tinggi, namun memiliki umur simpan yang pendek dan cepat busuk, maka perlu diolah menjadi tepung yang nantinya dapat diolah lebih lanjut menjadi berbagai produk pangan. Akan tetapi tepung sukun memiliki pengembangan dan pengikatan air rendah sehingga diperlukan modifikasi sehingga dapat diaplikasikan secara luas pada produk pangan salah satunya meat analog. Meat analaog umumnya terbuat dari bahan nabati yang memiliki sifat kurang kompak, kenyal dan cenderung keras sehingga membutuhkan bahan pengikat. Penambahan tepung sukun termodifikasi ini berpotensi sebagai bahan pengikat. Tujuan dari penelitian ini yaitu untuk mengatahui pengaruh perbandingan modifikasi fisik dan kimia terhadap karakteristik fisik tepung serta aplikasinya pada meat analog. Hasil penelitian menunjukkan bahwa modifikasi asetilasi meningkatkan swelling power, WHC, OHC dan menurunkan kelarutan. Modifikasi oksidasi meningkatkan swelling power dan kelarutan akan tetapi menurunkan WHC dan OHC. Modifikasi pregelatinisasi meningkatkan swelling power, kelarutan, WHC akan tetapi menurunkan OHC. Modifikasi Heat moisture treatment meningkatkan kelarutan akan tetapi menurunkan swelling power, WHC dan OHC. Aplikasi tepung sukun termodifikasi pada meat analog cenderung menurunkan nilai L* dan kekerasan, meningkatkan kekenyalan dan kekompakan. Penambahan tepung sukun termodifikasi cenderung meningkatkan sensoris kelengketan, kelunakan dan elastisitas. Kata kunci: meat analog, modifikasi fisik, modifikasi kimia, sukun
Evaluasi Kekuatan Daya Dukung Pondasi Bored Pile Dengan Struktur Slab On Pile (Studi Kasus Pada Slab On Pile Sta 14+045 Jalan Tol IKN Paket 3a KKT Kariangau-Karang Joang) Achmad, S.T., M.T, Karmila; Cholick, Baby Febriyana
JST (Jurnal Sains Terapan) Vol 11, No 2 (2025)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v11i2.2526

Abstract

This study aims to evaluate the load-bearing capacity and strength of the bored piles based on their dimensions and soil testing parameters. SOP 1 STA 14+065 is part of the IKN Toll Road Package 3A KKT Kariangau-Karangjoang, which uses pile slabs due to the soft soil conditions along the road's alignment. A PDA test was conducted to assess the load-bearing capacity of bored pile foundations with an 800 mm diameter with varying depths. Samples from Pile Points P4 B 131 and P4 B 152 were selected because they did not meet the minimum PDA target of 419.6 tons, raising concerns about potential settlement or even structural failure.The load analysis and calculations on the slab-on-pile structure were performed manually based on SNI 1725:2016 "Loading for Bridges" and SNI 2833:2016 "Bridge Design for Earthquake Loads". The slab-on-pile dimension analysis was assisted by the SAP2000 V.14.2.2 software.The study's results show that the static load-bearing capacity at Point P4 B 131 is 12.87% (36.085 tons) lower than the PDA test result. At Point P4 B 152, the static load-bearing capacity is 39.85% (108.67 tons) higher than the PDA test result. The analysis of the SOP 1 Segment 6 model using SAP2000 V.14.2.2 found that the vertical strength required for Piles P4 B 131 and P4 B 152 is 645.25 kN (65.8 tons) and 435.36 kN (44.4 tons), respectively. The allowable load-bearing capacity available in Piles P4 B 131 and P4 B 152 is 118 tons and 65 tons based on the PDA test, and 103.166 tons and 109.068 tons from static load calculation methods. Keywords : Slab on pile, PDA Test, Bearing capacity, Bored pile, SAP2000
Effect of Cold Plasma Treatment on Total Dissolved Solids (TDS) Concentration and Functional Groups in Turmeric (Curcuma longa) Powder in Water shoodiqin, dian mart; Robiandi, Fadli; Ginting, Jesika Br; Fadilla, Angelika Putri
JST (Jurnal Sains Terapan) Vol 11, No 1 (2025)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v11i1.2682

Abstract

Cold plasma technology has garnered increasing interest in food and agricultural applications due to its ability to induce surface modifications in organic materials without the use of high temperatures. While its antimicrobial properties are well-documented, recent studies have highlighted its potential in altering the physicochemical characteristics of biopolymers, particularly through modification of surface functional groups. These modifications can influence material behavior in aqueous environments, including solubility and dispersion properties. Turmeric (Curcuma longa), widely used for its bioactive compounds, often faces limitations in its application due to poor solubility in water. Enhancing its solubility could increase its bioavailability and broaden its use in food and pharmaceutical products. This study investigates the effect of cold plasma treatment on turmeric powder, particularly its impact on the concentration of total dissolved solids (TDS) and the modification of functional groups that contribute to solubility. By exposing dried turmeric powder to cold plasma, this work aims to assess its potential to improve the aqueous dissolution of turmeric through structural and chemical surface changes, as characterized by Fourier-transform infrared spectroscopy (FTIR). The results indicate an increase in polar groups such as O–H, N–H, and C–O, and a reduction in non-polar groups such as aliphatic C–H. These modifications suggest enhanced hydrophilicity and solubility of the plasma-treated turmeric powder compared to the untreated sample. Overall, this study demonstrates that cold plasma treatment can serve as an effective technique to improve the solubility characteristics of turmeric, potentially expanding its applications in food, and pharmaceutical

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