https://journal.itera.ac.id/index.php/jsat <p><strong><img src="/public/site/images/iputumah1291/JOURNAL_OF_SCIENCE_AND_APPLICATIVE_TECHNOLGY_(2).jpg" alt=""></strong></p> <div> <p align="justify"><a href="https://journal.itera.ac.id/index.php/jsat/"><strong>Journal of Science and Applicative&nbsp;Technology (JSAT)</strong></a>&nbsp;is a semiannual journal published by Institut Teknologi Sumatera, Lampung Selatan, Indonesia. It will be published in August and December. The objective of the journal is to provide a room for students, researchers, lecturers, pratictioners and communities to present their ideas regarding several topics covered in this journal. JSAT was indexed by Google scholar, SINTA (Science and Technology Index), ARJUNA, Portal Garuda. This journal has been registered at PDII LIPI (E-ISSN:&nbsp;<a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&amp;1501206946&amp;1&amp;&amp;2017" target="_blank" rel="noopener">2581-0545</a>).&nbsp;<em>This journal is nationally accredited by Directorate General of Research and Development Strengthening (DGRDS), Ministry of Research, Technology and Higher Education of the Republic of Indonesia No.: 72/E/KPT/2024, dated April 1st, 2024.</em></p> </div> <p><strong>Topics</strong></p> <p align="justify">Journal of Science and Applicative Technology covers full research in sciences and technology.&nbsp;Journal of Science and Applicative Technology has 7 focus and scope:</p> <ol> <li class="show">Infrastructures Technology;</li> <li class="show">Remote Sensing and Geospatial Information System;</li> <li class="show">Marine Science, Technology and Engineering;</li> <li class="show">Electrical, Informatics, Telecommunications, and Biomedical Engineering;</li> <li class="show">Renewable Energy, Physics, Chemistry, Materials;</li> <li class="show">Biology, Forestry and Agriculture Engineering;</li> <li class="show">Earth &amp; Space Science and Engineering.</li> </ol> en-US <p style="margin: 0; padding-top: 0;"><a href="http://creativecommons.org/licenses/by-nc/4.0/" rel="license"><img style="border-width: 0;" src="https://i.creativecommons.org/l/by-nc/4.0/88x31.png" alt="Creative Commons License"></a></p> <p style="margin: 0; padding-top: 0;" align="justify">All the content on <a title="JSAT" href="https://journal.itera.ac.id/index.php/jsat/" target="_blank"><strong>Journal of Science and Applicative Technology (JSAT)</strong></a> may be used under the terms of the <a title="Creative Commons Attribution-NonCommercial 4.0 International License" href="https://creativecommons.org/licenses/by-nc/4.0/" target="_blank">Creative Commons Attribution-NonCommercial 4.0 International License</a>.</p> <p style="margin: 0; padding-top: 0;"><strong>You are free to:</strong></p> <ul> <li><strong>Share</strong>&nbsp;- copy and redistribute the material in any medium or format</li> <li><strong>Adapt</strong>&nbsp;- remix, transform, and build upon the material</li> </ul> <p style="margin: 0; padding-top: 0;"><strong>Under the following terms:</strong></p> <ul> <li><strong>Attribution</strong>&nbsp;- You must give&nbsp;<a id="appropriate_credit_popup" class="helpLink" title="" href="https://creativecommons.org/licenses/by-nc/4.0/#" data-original-title="">appropriate credit</a>, provide a link to the license, and&nbsp;<a id="indicate_changes_popup" class="helpLink" title="" href="https://creativecommons.org/licenses/by-nc/4.0/#" data-original-title="">indicate if changes were made</a>. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.</li> <li><strong>NonCommercial</strong>&nbsp;-&nbsp;You may not use the material for&nbsp;<a id="commercial_purposes_popup" class="helpLink" title="" href="https://creativecommons.org/licenses/by-nc/4.0/#" data-original-title="">commercial purposes</a>.</li> <li><strong>No additional restrictions</strong>&nbsp;- You may not apply legal terms or&nbsp;<a id="technological_measures_popup" class="helpLink" title="" href="https://creativecommons.org/licenses/by-nc/4.0/#" data-original-title="">technological measures</a>&nbsp;that legally restrict others from doing anything the license permits.</li> </ul> [email protected] (Dr. I Putu Mahendra) [email protected] (Lasuardi Permana, Ph.D.) Tue, 30 Jun 2026 16:09:44 +0000 OJS 3.1.2.4 http://blogs.law.harvard.edu/tech/rss 60 https://journal.itera.ac.id/index.php/jsat/article/view/2784 <p>The growing interest in natural antioxidants has encouraged the exploration of plant-derived bioactive compounds as potential agents for mitigating oxidative stress-related disorders. This study aimed to evaluate the antioxidant activity of a non-oil acetone fraction of red ginger (<em>Zingiber officinale </em>var<em>. rubrum</em>) rhizome and to identify its major phytochemical constituents through preliminary screening. The non-oil acetone fraction was obtained after removal of n-hexane-soluble components from the crude acetone extract. The fraction was subjected to qualitative phytochemical analysis and antioxidant evaluation using the DPPH radical scavenging assay. Phytochemical screening revealed the presence of flavonoids, tannins, terpenoids, and alkaloids. The fraction exhibited concentration-dependent radical scavenging activity with an IC₅₀ value of 43.61 ppm, indicating very strong antioxidant activity according to commonly used IC₅₀-based classifications. These findings suggest that the non-oil acetone fraction of red ginger represents a potential natural antioxidant source and provide a basis for further studies involving quantitative phytochemical analysis and characterization of active compounds.</p> Arif Ashari, Clara Uli Cartika Simamora, Ciptati , Irwan Sudarmanto, Fina Khaerunnisa Frima, Ahmad Anggraria Jaya Agung, Cindy Moyna Clara L.A., Prio Santoso, Muhammad Abdussalam Copyright (c) 2026 Journal of Science and Applicative Technology http://creativecommons.org/licenses/by-nc/4.0 https://journal.itera.ac.id/index.php/jsat/article/view/2784 Tue, 30 Jun 2026 15:59:26 +0000