Analysis of Bioactive Components and In-Silico Study of Ethanol Extract from Eleutherine Bulbosa (Mill.) Urb. (Bawang Dayak) using UHPLC-MS Method
Analisis Komponen Bioaktif dan Kajian In Silico Ekstrak Etanol Dari Eleutherine bulbosa (Mill.) Urb. (Bawang Dayak) dengan Metode UHPLC-MS
DOI:
https://doi.org/10.30595/jrst.v10i1.27746Keywords:
Bawang Dayak, Eleutherine Bulbosa, In Silico, Antikanker, PayudaraAbstract
Breast cancer is one of the most common non-communicable diseases in Indonesia that characterized by uncontrolled growth of abnormal cells. The high incidence and mortality rates associated with this disease have driven the search for new anticancer agents, including those derived from natural sources such as Eleutherine bulbosa (Mill.) Urb. (Dayak onion). The bulbs of the Dayak onion are known to contain bioactive compounds such as flavonoids and naphthoquinones, which may possess anticancer activity. This study aims to identify secondary metabolites from Dayak onion ethanol extract using UHPLC-MS, as well as evaluate the ADMET profile (Absorption, Distribution, Metabolism, Excretion, and Toxicity) and in silico activity of the identified compounds against the HER2 receptor (Human Epidermal Growth Factor Receptor 2). The results of the UHPLC-MS analysis revealed the presence of 233 compounds in the Dayak onion ethanol extract, with 23 compounds showing the highest reactivity. After screening based on the Lipinski Rule of Five criteria, as well as ADME and toxicity predictions, one potential candidate compound was identified: 5-O-Methylvisamminol. This compound meets all the physicochemical profile criteria (Lipinski’s Rule of Five) for oral drugs and exhibits a satisfactory pharmacokinetic profile with an HIA value of 95.7%; Caco-2 cell permeability of 39.7 nm/s; PBB of 72.1%; BBB 0.814, and through the Ames test, this compound was also found to be non-mutagenic and non-carcinogenic. Molecular docking analysis showed that 5-O -Methylvisamminol has a binding energy (∆G) of -9.1 kcal/mol when interacting with the HER2 receptor and can interact with five key amino acids (ASP863, LEU852, VAL734, LEU796, and LEU800) through hydrophobic interactions. The compound 5-O-Methylvisamminol is predicted to have potential as an anti-breast cancer agent that can target HER2.
ABSTRAK (Bahasa Indonesia)
Kanker payudara merupakan salah satu penyakit tidak menular yang paling sering ditemukan di Indonesia yang ditandai oleh pertumbuhan sel abnormal yang tidak terkendali. Tingginya angka kejadian dan kematian akibat penyakit ini mendorong pencarian agen antikanker baru, termasuk dari bahan alami seperti Eleutherine bulbosa (Mill.) Urb. (bawang dayak). Umbi bawang dayak diketahui mengandung senyawa bioaktif seperti flavonoid dan naftokuinon yang berpotensi memiliki aktivitas antikanker. Penelitian ini bertujuan untuk mengidentifikasi metabolit sekunder dari ekstrak etanol bawang dayak menggunakan metode UHPLC-MS, serta mengevaluasi profil ADMEToks (Absorpsi, Distribusi, Metabolisme, Ekskresi, dan Toksisitas) dan aktivitas in silico dari senyawa teridentifikasi terhadap reseptor HER2 (Human Epidermal Growth Factor Receptor 2). Hasil dari analisis UHPLC-MS menunjukkan adanya 233 senyawa dalam ekstrak etanol bawang dayak, dengan 23 senyawa yang menunjukkan reaksi paling tinggi. Setelah dilakukan pemilahan berdasarkan kriteria Lipinski Rule of Five serta prediksi ADME dan Toksisitas, diperoleh satu kandidat senyawa potensial, yaitu 5-O-Methylvisamminol. Senyawa ini memenuhi semua kriteria profil fisikokimia (Lipinski Rule of Five) untuk obat oral dan menunjukkan profil farmakokinetik yang cukup baik dengan nilai HIA 95,7%; sel Caco-2 39,7 nm/detik; PBB 72,1%; BBB 0,814 dan melalui uji Ames senyawa ini juga tidak bersifat mutagenik maupun karsinogenik. Analisis molecular docking menunjukkan bahwa 5-O-Methylvisamminol memiliki energi pengikatan (∆G) sebesar -9,1 kkal/mol ketika berinteraksi dengan reseptor HER2, serta mampu berinteraksi dengan lima asam amino kunci (ASP863, LEU852, VAL734, LEU796, dan LEU800) melalui interaksi hidrofobik. Senyawa 5-O-Methylvisamminol diprediksi memiliki potensi sebagai agen antikanker payudara yang dapat menargetkan HER2.
References
Aertgeerts, K., Skene, R., Yano, J., Sang, B. C., Zou, H., Snell, G., Jennings, A., Iwamoto, K., Habuka, N., Hirokawa, A., Ishikawa, T., Tanaka, T., Miki, H., Ohta, Y., and Sogabe, S. (2011). Structural Analysis of the Mechanism of Inhibition and Allosteric Activation of the Kinase Domain of HER2 Protein. The Journal of Biological Chemistry, Volume 286(21); 18756–18765. https://doi.org/10.1074/jbc.M110.206193
Annisa R, Hendradi E, Yuwono M. Analysis Of 1,4 Naphthoquinone In The Indonesian Medical Plant From Extract Eleutherine palmifolia (L.) Merr by UHPLC. IOP Conf Ser Earth Environ Sci. (2020);456(1):012020.
Apriali, K. D., Triana, E., Farhani, M. I., Khoirunnisa, A., & Nur’aini, Y. A. (2022). Studi Penambatan Molekul Dan Prediksi Admet Senyawa Metabolit Sekunder Tanaman Kelor (Moringa Oleifera L.) Sebagai Inhibitor Bace1 Pada Penyakit Alzheimer. Fitofarmaka: Jurnal Ilmiah Farmasi, 12(1), 58–67. https://doi.org/10.33751/jf.v12i1.4351
Asworo, R. Y., & Widwiastuti, H. (2023). Pengaruh Ukuran Serbuk Simplisia dan Waktu Maserasi terhadap Aktivitas Antioksidan Ekstrak Kulit Sirsak. Indonesian Journal of Pharmaceutical Education, 3(2). https://doi.org/10.37311/ijpe.v3i2.19906
Bos JD, Meinardi MM. The 500 Dalton rule for the skin penetration of chemical compounds and drugs. Exp Dermatol. 2000;9(3):165–9.
Schneider, G. (2013). Prediction of Drug-Like Properties. Madame Curie Bioscience Database - NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK6404/
Nursamsiar, Toding A, Awaluddin A. Studi In silico Senyawa Turunan Analog Kalkon dan Pirimidin sebagai Antiinflamasi: Prediksi Absorpsi, Distribusi, dan Toksisitas. Pharmacy. 2016;13(1):92–100.
Lipinski CA, Lombardo F, Dominy BW, Feeney PJ. Experimental and computational approaches to estimate solubility and permeability in drug discovery and development q settings. 2001; 46: 3-26.
Pollastri MP. Overview on the Rule of Five. Current Protocols in Pharmacology. 2010;49:9.12.1-9.12.8.
Levy DD, Zeiger E, Escobar PA, Hakura A, Leede BJ, Kato M, Moore MM, Sugiyama K. Recommended criteria for the evaluation of bacterial mutagenicity data (Ames test). MRGTEM. 2019;848.
Shargel L, Yu A. Applied Biopharmaceutics and Pharmacokinetics. 7th ed. New York: McGraw Hill; 2016.
Vieth M. Characteristic physical properties and structural fragments of marketed oral drugs. J Med Chem. 2004;47(1):224–32.
Walmsley RM, Billinton N. How accurate is in vitro prediction of carcinogenicity? Br J Pharmacol. 2011;162(6):1250–8.
Roy S, Kumar A, Baig MH, Masarik M, Provaznik I. Virtual screening, ADMET profiling, molecular docking and dynamics approaches to search for potent selective natural molecules based inhibitors against metallothionein-III to study Alzheimer's disease. Epub. 2015;15(10): 83-105.
Arba M. Buku Ajar Farmasi Komputasi. Yogyakarta: Deepublish; 2019.
Muttaqin FZ, Ismail H, Muhammad HN. Studi Molecular Docking, Molecular Dynamic, dan Prediksi Toksisitas Senyawa Turunan Alkaloid Naftiridin sebagai Inhibitor Protein Kasein Kinase 2-a pada Kanker Leukimia. Pharmacoscript. 2019;2(1):49-64
Cao Y, Khan A, Mirzaei H, Reza KS, Javan M, Albadarin AB, et al. Investigations of adsorption behavior and anti-cancer activity of curcumin on pure and platinum functionalized B12N12 nanocages. Journal of Molecular Liquids. 2021;334: 116516.
Ekawasti, F., Sa’diah, S., Cahyaningsih, U., Dharmayanti, N. L. P. I., & Subekti, D. T., 2021, 474Molecular Docking Senyawa Jahe Merah dan Kunyit pada Dense Granules Protein 1Toxoplasma gondii dengan Metode In silico, Jurnal Veteriner, 22(4), 474 484.
Ferwandi S, Gunawan R, Astuti W. Studi Docking Molekular Senyawa Asam Sinamat dan Derivatnya Sebagai Inhibitor Protein 1j4x pada Sel Kanker Serviks. J Kim Mulawarman. 2017;14(2):84–90.
Budino TA. Targeted Cancer Therapy: The Next Generation of Cancer Treatment. Current Drug Discovery Technologies. 2015;12(1): 3-20.
Cardoso, F., Kyriakides, S., Ohno, S., Poortmans, P., Rubio, I. T., Zackrisson, S., & Senkus, E. (2019). Early breast cancer : ESMO Clinical Practice Guidelines for diagnosis , treatment and follow-up. ESMO, 30(8), 1194–1220. https://doi.org/10.1093/annonc/mdz173
Departemen Kesehatan RI. 1995. Materia Medika Indonesia. Jilid I. Jakarta: Departemen Kesehatan Republik Indonesia. Hal. 47-50.
Departemen Kesehatan Republik Indonesia. 1983. Pemanfaatan Tanaman Obat. Direktorat Jenderal Pengawasan Obat dan Makanan. Jakarta.
Febrinda, A. E., Nurwitri Caecillia Chrismie, & Husyairi, K. A. (2021). Aktivitas Antioksidan dan Preferensi Konsumen Pada Minuman Fungsional Berbasis Umbi Bawang Dayak (Antioxidant Activity and Consumer Preferences on Functional Drinks Formula Based on Bawang Dayak). Jurnal Sains Terapan, Volume 11(2), 11–19.
Hakim, A. R., & Saputri, R. (2020). Narrative Review: Optimasi Etanol Sebagai Pelarut Senyawa Flavonoid Dan Fenolik. Jurnal Surya Medika (JSM), 6(1), 177–180.
Hsu KH, Su BH, Tu YS, Lin OA, Tseng YJ. Mutagenicity in a Molecule: Identification of Core Structural Features of Mutagenicity Using a Scaffold Analysis. PLoS One. 2016;11(2):e0148900.
Hero, S. K. (2021). Faktor Risiko Kanker Payudara. JMH, Volume 3(01), 3-81.
Hidayah, A. S., Kiki, M., Leni., P. (2015). Uji Aktivitas Antioksidan Umbi Bawang Dayak (Eleutherine bulbosa Merr.). Prosiding Penelitian SPeSIA Unisba.
Iqbal N, and Iqbal N. Human Epidermal Growth Factor Receptor 2 (HER2) in Cancers: Overexpression and Therapeutic Implications. Molecular Biology International. 2014;1–9.
Jin MH, Nam A-R, Park JE, Bang J-H, Bang Y-J, Oh D-Y. Resistance Mechanism against Trastuzumab in HER2-Positive Cancer Cells and Its Negation by Src Inhibition. Mol Cancer Ther. (2017 Jun); Volume 16(6): 1145–54.
Karim, B. K., Tsamarah, D. F., Zahira, A., Rosandi, N. F., Swarga, K. F., Aulifa, D. L., Elaine, A. A., & Sitinjak, B. D. P. (2024). In-Silico Study of Active Compounds in Guava Leaves (Psidium guajava L.) as Candidates for Breast Anticancer Drugs. Indonesian Journal of Biological Pharmacy, Volume 3(3), 194–209. https://jurnal.unpad.ac.id/ijbp
Zhao YY, Lin RC. UPLC–MSE application in disease biomarker discovery: the discoveries in proteomics to metabolomics. Chemico-biological interactions. 2014;215:7-16.
Kazakevich, Y., and LoBrutto, R., 2007. HPLC For Pharmaceutical Scientist, New Jersey: Wiley & Sons, Inc.
Kemenkes RI. (2022). Pelayanan Kesehatan Ibu Di Fasilitas Kesehatan Dasar dan Rujukan Pedoman Bagi Tenaga Kesehatan. Jakarta: Kementrian Kesehatan RI.
Kesuma, D., Siswandono, S., Purwanto, B. T., dan Hardjono, S. (2018). Uji in silico Aktivitas Sitotoksik dan Toksisitas Senyawa Turunan N-(Benzoil)-N’- feniltiourea Sebagai Calon Obat Antikanker. Journal of Pharmaceutical Science and Clinical Research, 1, 1–11. https://doi.org/10.20961/jpscr.v3i1.16266
Ketut, S., dan Kartika Sari, L. M. K. (2022). Kanker Payudara: Diagnostik, Faktor Risiko, dan Stadium. Ganesha Medicina Journal, Volume 2(1), 42–48.
Kim J, Harper A, Mc Cormack V, Sung H, Houssami N, Morgan E, Mutebi M, Garvey G, Soerjomataram I, Fidler-Benaoudia MM. Global patterns and trends in breast cancer incidence and mortality across 185 countries. Nat Med. 2025 Apr;31(4):1154-1162. doi: 10.1038/s41591-025-03502-3. Epub 2025 Feb 24. PMID: 39994475.
Kirkham, A. A., & Jerzak, K. J. (2022). Prevalence of Breast Cancer Survivors Among Canadian Women. Journal of the National Comprehensive Cancer Network : JNCCN, 20(9), 1005–1011. https://doi.org/10.6004/jnccn.2022.7028
Kumala Hati, A., Multazamudin, dan Iqbal, M. (2018). Uji Aktivitas Antibakteri dan Kandungan Senyawa Aktif Ekstrak n-Heksan, Etil Asetat dan Etanol 70% biji Melinjo (Gnetum gnemon. L) terhadap bakteri Salmonella thypi dan Streptococcus mutans. Indonesian Journal of Pharmacy and Natural Product, Volume 1(1).
Ky B, Vejpongsa P, Yeh ET, Force T, Moslehi JJ. Emerging paradigms in cardiomyopathies associated with cancer therapies. Circ Res 2013; 113(6):754–764. doi:10.1161/CIRCRESAHA.113.300218
Lipinski CA, Lombardo F, Dominy BW, Feeney PJ. Experimental and computational approaches to estimate solubility and permeability in drug discovery and development q settings. 2001; 46: 3-26.
Lipinski, C. A. (2004). Lead- and drug- like compounds: The rule-of-five revolution. Drug Discovery Today: Technologies, 1(4), 337–341. https://doi.org/10.1016/j.ddtec.2004. 11.007
Li, X., Ohtsuki, T., Koyano, T., Kowithayakorn, T., Ishibashi, M. (2009). New Wnt/β-Catenin Signaling Inhibitors Isolated from Eleutherine palmifolia. Chemistry An Asian Journal. Volume 4, 540-547.
Makatita, F. A., Wardhani, R., & Nuraini., 2020, Riset in silico dalam pengembangan sains di bidang pendidikan, studi kasus: analisis potensi cendana sebagai agen anti-aging, Jurnal ABDI, Volume 2(1); 59–67.
Masuda H, Zhang D, Bartholomeusz C, Doihara H, Hortobagyi GN, Ueno NT. Role of epidermal growth factor receptor in breast cancer. Breast Cancer Res Treat. 2012/10/17. 2012 Nov;136(2): 331–45.
Matusiewicz, M., Bączek, K. B., Kosieradzka, I., Niemiec, T., Grodzik, M., Szczepaniak, J., Orlińska, S., & Węglarz, Z. (2019). Effect of Juice and Extracts from Saposhnikovia divaricata Root on the Colon Cancer Cells Caco-2. International journal of molecular sciences, 20(18), 4526. https://doi.org/10.3390/ijms20184526
Muthia R, Wati H, Jamaludin WB, Kartini, Setiawan F, Fikri M, Wahhab A. 2021. Standardization of Eleutherine bulbosa Urb. and total flavonoid content from three locations in Kalimantan, Indonesia. harmacogn J. 13(1): 73-80
Mut’iah, R., Jati, T., Dewi, D., Suryadinata, A., & Qonita, K. (2021). Inhibition of Human Epidermal Growth Factor Receptor-2 (HER2) from Pomelo (Citrus maxima) Flavonoid Compounds: an In silico Approach. Indonesian Journal of Cancer Chemoprevention, Volume 12(3), 148-160. https://doi.org/10.14499/INDONESIANJCANCHEMOPREV12ISS3PP148-160
Mohan N, Jiang J, Dokmanovic M, Wu WJ. Trastuzumab-mediated cardiotoxicity: current understanding, challenges, and frontiers. Antib Ther. (2018 Aug 31); Volume 1(1): 13–7.
Narko, T., Benny, P., Riska, P., Dang, S., Faridhatul, K. (2017). Molecular Docking Study of Bulb Of Bawang Dayak (Eleutherine palmifolia (L) Merr) Compound as Anti Servical Cancer. Jurnal Ilmiah Farmako Bahari. Volume 8(2), 1-14.
Nguyen PL, Taghian AG, Katz MS, Niemierko A, Abi Raad RF, Boon WL, Bellon JR, Wong JS, Smith BL, Harris JR. Breast cancer subtype approximated by estrogen receptor, progesterone receptor, and HER2 is associated with local and distant recurrence after breast-conserving therapy. J Clin Oncol. (2008) May 10;26(14):2373-8. doi: 10.1200/JCO.2007.14.4287.
Nurrohmah, A., Aprianti, A., dan Hartutik, S. (2022). Risk Factors of Breast Cancer. Gaster Journal Of Health Science, Volume 20(1), 1–10.
Pereyra, C. E., Rafael, F. D., Sabrina, B. F., Luciano, P. G., Floriano, P. S. 2019. The Diverse Mechanisms and Anticancer Potential of Naphthoquinones. Cancer Cell International. Volume 19, Issue 207.
Prasetya, I. W. S. W. (2023). Potensi Kandungan Fitokimia Bawang Dayak (Eleutherine palmifolia (L.) Merr) Sebagai Sumber Antioksidan. Volume 2: 345–355. https://ejournal1.unud.ac.id/index.php/wsnf/article/view/649/464
Prayitno Budi, Mukti Bayu Hari, & Lagiono. (2018). Optimasi Potensi Bawang Dayak (Eleutherine Sp.) Sebagai Bahan Obat Alternatif. Jurnal Pendidikan Hayati, Volume 4(3), 149–158.
Puspadewi, R., Adirestuti, P., & Menawati, R. (2013). Khasiat Umbi Bawang Dayak (Eleutherine palmifolia (L.) Merr.) Sebagai Herbal Antimikroba Kulit. Kartika Jurnal Ilmiah Farmasi, Volume 1(1), 31–37.
Putri, Erika Nuur Anisa dan Haryoto. (2018). Aktivitas Antikanker Ekstrak Etanol Umbi Bawang Dayak (Eleutherine americana Merr.) Terhadap Sel Kanker Payudara T47D. University Research Collogium
Ramakrishna, A., & Ravishankar, G. A. (2011). Influence of abiotic stress signals on secondary metabolites in plants. Plant Signaling and Behavior, 6(11), 1720–1731. https://doi.org/10.4161/psb.6.11.17613
Ramachandran, B., Kesavan, S., & Rajkumar, T. (2016). Molecular Modeling and Docking of Small Molecule Inhibitors Against NEK2. Bioinformation. Biomedical Informatics, 12(2), 62–68.
Rokom. (2022, February 9). Kanker Payudara Paling Banyak di Indonesia, Kemenkes Targetkan Pemerataan Layanan Kesehatan. Kementrian Kesehatan. Diakses pada 22 Januari 2025 dari https://sehatnegeriku.kemkes.go.id/baca/umum/20220202/1639254/kanker-payudaya-paling-banyak-di-indonesia-kemenkes-targetkan-pemerataan-layanan-kesehatan/
Saerang, M. F., Jaya Edy, H., & Siampa, P. (2023). Formulation Of Cream With Ethanol Extract Of Green Gedi Leaf (Abelmoschus Manihot L.) Against Propionibacterium Acnes Formulasi Sediaan Krim Dengan Ekstrak Etanol Daun Gedi Hijau (Abelmoschus Manihot L.) Terhadap Propionibacterium acnes. PHARMACON, 12(3), 350–357.
Saini KS, Azim HA Jr, Metzger-Filho O, et al. Beyond trastuzumab: new treatment options for HER2-positive breast cancer. Breast 2011; 20(suppl 3):S20–S27. doi:10.1016/S0960-9776(11)70289-2
Santi, Rahmalia, W., & Syabhanu, I. (2020). Karakterisasi Ekstrak Zat Warna Umbi Bawang Dayak (Eleutherine americana Merr.). Jurnal Kimia Khatulistiwa, 8(4), 5–12.
Sari, N., & Amran Vitri, Y. A. (2019). Hubungan Penggunaan Kontrasepsi Oral dengan Kanker Payudara Wanita Premenopause (Relationship of Oral Contraception Use with Premenopausal Women’s Breast Cancer). Jurnal Ilmiah Kesehatan Sandi Husada, Volume 10(2), 132–137. https://doi.org/10.35816/jiskh.v10i2.112
Sintya Suherlan, Rohayah, Taufik Muhammad Fakih, (2021). Uji Aktivitas Antikanker Payudara Senyawa Andrografolida Dari Tumbuhan Sambiloto (Andrographis paniculata (Burm F) Ness.) Terhadap Human Epidermal Growth Factor Receptor 2 (HER2) Secara In silico, JIF Farmasyifa 4(2):39-50
Suherlan, S., Rohayah, R., dan Fakih, T. M. (2021). Uji Aktivitas Antikanker Payudara Senyawa Andrografolida Dari Tumbuhan Sambiloto (Andrographis Paniculata (Burm F) Ness.) Terhadap Human Epidermal Growth Factor Receptor 2 (HER2) SECARA IN SILICO. Jurnal Ilmiah Farmasi Farmasyifa, 4(2), 39–50. https://doi.org/10.29313/jiff.v4i2.7784
Ulya, N. F., (2022), Analisis In silico Interaksi Molekul Maricaffeoylide dari Avicennia marina Terhadap Reseptor Tumor Necroosis Factor melalui Docking Molekuler.
Vi, C., Mandarano, G. and Shigdar, S. (2021) 'Diagnostics and therapeutics in targeting her2 breast cancer: A novel approach', International Journal of Molecular Sciences. doi: 10.3390/ijms22116163.
Xiaofeng. Dai et al. (2016). Cancer Hallmarks, Biomarkers and Breast Cancer Molecular Subtypes. Journal of Cancer. Volume 7
Yoshimoto, S., Kato, D., Kamoto, S., Yamamoto, K., Tsuboi, M., Shinada, M., Ikeda, N., Tanaka, Y., Yoshitake, R., Eto, S., Saeki, K., Chambers, J., Hashimoto, Y., Uchida, K., Nishimura, R., & Nakagawa, T. (2020). Overexpression of human epidermal growth factor receptor 2 in canine primary lung cancer. Journal of Veterinary Medical Science, 82(6): 804- 808
Zardecki, C., Dutta, S., Goodsell, D. S., Voigt, M., & Burley, S. K. (2016). RCSB Protein Data Bank: a resource for chemical, biochemical, and structural explorations of large and small biomolecules. Journal of Chemical Education, 93(3), 569–575. https://doi.org/10.1021/acs.jchemed.5b00404
Zuhud, E. A. M. (2011). Bukti Kedahsyatan Sirsak Menumpas Kanker. Jakarta : PT. Agromedia
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2026 Indah Hairunisa, Afin Irgi Prasetyo, Dinda Kholifatul Awalia, Ferdi Kurniawan; Dwi Lestari

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access)
JRST (Jurnal Riset Sains dan Teknologi) is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

