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All Journal Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Sasambo Journal of Pharmacy Gudang Jurnal Pengabdian Masyarakat International Journal of Contemporary Sciences (IJCS)
Erwin Prasetya Toepak
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Health Professions Languange, Linguistic, Communication & Media Medicine & Pharmacology Social Sciences Other

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Profil fitokimia dan aktivitas antibakteri fraksi etil asetat akar jarak pagar (Jatropha curcas Linn.) Sudarman Rahman; Stevin Carolius Angga; Erwin Prasetya Toepak; Muhammad Takdir Bachtiar
Sasambo Journal of Pharmacy Vol. 2 No. 2 (2021): September
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (383.8 KB) | DOI: 10.29303/sjp.v2i2.116

Abstract

Bacterial infections are a major cause of chronic infections and mortality that continues to threaten public health worldwide. Various medicinal plants used in folk medicine have demonstrated wound healing and antibacterial properties. The aims of the study are investigation phytochemical and antibacterial activity of ethyl acetate fraction from jarak pagar roots (Jatropha curcas Linn.). The roots were treated with maceration method using ethanol 70% and subsequently fractioned to ethyl acetate fraction. The fractions were used for phytochemical screening and antibacterial assay using Kirby and Bauer agar difussion method. The results showed that ethyl acetate fraction jarak pagar roots contained alkaloid, flavonoids, saponins, steroids, poliphenol dan tannins. The antibacterial activity of jarak pagar roots againts Staphylococcus aureus and Escherichia coli shows that the activity of this fraction with concentration 8 mg/mL has strong inhibitory potency against the growth S. aureus with inhibitory zone is 14,3 mm and has moderate inhibitory potency against E. coli with inhibitory zone is 9 mm. The increase concentrations of ethyl asetate fraction jarak pagar roots shows high inhibition diameter of bacterial growth.  
SKRINING FITOKIMIA DAN UJI ANTIOKSIDAN MENGGUNAKAN METODE DPPH PADA EKSTRAK METANOL BUAH TERUNG ASAM BESAR (Solanum Ferox Linn) Lilis Rosmainar; Erwin Prasetya Toepak; Wahyu Nugroho
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 5 No. 1 (2023): Penelitian Kimia dan terapannya 2023
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v5i1.2590

Abstract

Penelitian ini bertujuan untuk skrining fitokimia dan uji antioksidan menggunakan metode DPPH pada ekstrak metanol buah terung asam besar (Solanum Ferox Linn). Yang diamati dalam penelitian ini adalah meneliti kandungan senyawa metabolit sekunder yang terdapat pada buah terung asam dengan menggunakan ekstrak metanol dan uji aktivasi antioksidan menggunakan metode DPPH. Ekstrak metanol pada terung asam besar teridentifikasi mengandung senyawa golongan alkaloid,terpenoid ,flavonoid, dan fenolat. Hasil uji aktivitas antioksidan ekstrak menunjukkan bahwa ekstrak metanol memiliki aktivitas antioksidan dengan nilai IC50 yakni 314,084 ppm. Hasil uji aktivitas antioksidan ekstrak menunjukkan bahwa vitamin C memiliki aktivitas antioksidan dengan nilai IC50 yakni 5,49 ppm. Terung asam besar mempunyai nilai IC50 314,084 µg/mL yang menunjukan bahwa terung asam memiliki aktivitas antioksidan yang lemah. Sebagai kontrol positif digunakan vitamin C karena vitamin ini merupakan antioksidan sekunder alami yang memiliki aktivitas antioksidan sangat kuat yang terlihat dari nilai IC50 sebesar 5,49 µg/mL.
Aktivitas antioksidan dan uji sitotoksik infusa daun jarak pagar (Jatropha curcas) Sudarman Rahman; Alayya Adistia Putri; Erwin Prasetya Toepak; Stevin Carolius Angga; Ysrafil Ysrafil
Sasambo Journal of Pharmacy Vol. 4 No. 2 (2023): September
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/sjp.v4i2.232

Abstract

Antioxidants are crucial in preventing cell damage caused by oxidation from oxidants. The use of antioxidants from natural products such as Jatropha curcas leaves can counteract free radicals due to the presence of secondary metabolites. The main aims of the study were to determine the antioxidant and cytotoxic activity of the infusion of J. curcas leaves. The sample was extracted using the infusion method. A qualitative phytochemical screening was carried out using the test tube method, antioxidant assay using the DPPH method and cytotoxic using the BSLT method. The results showed that the infuse of J. curcas leaves contained secondary metabolites such as polyphenols and tannins, alkaloids, flavonoids, and saponins. In the antioxidant activity test, infuse of J. curcas leaves and vitamin C (control) the IC50 was 58.90±2.34 ppm and 8.78±0.21 ppm respectively. The infused cytotoxic test contained an active toxic compound in shrimp larvae with an LC50 of 200.28 ppm (LC50 ≤ 1000 ppm). Based on the results of the study, infuse of J. curcas leaves showed potential as an antioxidant and anticancer agent with a strong classification.
Sosialisai Strategi Optimalisasi Kinerja Pemasaran BUMDesa MHU Mart Melalui Integrasi Ekonomi Kreatif dan Pemasaran Digital Vivy Kristinae; Erwin Prasetya Toepak; Bambang Supriyono; Kembara Sopather
Gudang Jurnal Pengabdian Masyarakat Vol. 3 No. 2 (2025): Juli
Publisher : PT. Gudang Pustaka Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59435/gjpm.v3i2.1641

Abstract

Badan Usaha Milik Desa (BUMDesa) merupakan instrumen vital dalam akselerasi ekonomi perdesaan, namun seringkali menghadapi tantangan dalam hal kapasitas pemasaran. Studi kasus pada BUMDesa MHU Mart di Kecamatan Mentaya Hilir Utara, Kotawaringin Timur, menunjukkan adanya keinginan untuk bertransformasi dari metode pemasaran yang sangat terbatas, hanya mengandalkan status WhatsApp, ke strategi yang lebih komprehensif dan berdaya saing. Ketergantungan pada metode pasif ini menghambat jangkauan pasar dan potensi pertumbuhan unit usaha minimarket yang dikelola. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengatasi kesenjangan tersebut dengan (1) meningkatkan pemahaman konseptual pengelola BUMDesa mengenai strategi pemasaran digital yang efektif, (2) memperkenalkan dan menanamkan prinsip-prinsip ekonomi kreatif sebagai fondasi untuk menciptakan keunggulan kompetitif, dan (3) memfasilitasi perumusan rencana aksi awal untuk implementasi. Metode yang digunakan adalah pendekatan kualitatif partisipatif melalui sosialisasi dan diskusi terfokus dengan para pegawai BUMDesa MHU Mart. Pendekatan ini dirancang untuk mendorong keterlibatan aktif, mengidentifikasi tantangan kontekstual, dan membangun rasa kepemilikan atas solusi yang dihasilkan. Luaran yang ditargetkan dari kegiatan ini adalah peningkatan literasi digital dan wawasan ekonomi kreatif para pengelola, yang terukur melalui analisis diskusi sebelum dan sesudah kegiatan. Hasilnya menunjukkan antusiasme tinggi dari para peserta, yang merasa program ini sangat bermanfaat dan membuka wawasan baru. Melalui kegiatan ini dapat disimpulkan bahwa model intervensi berbasis diskusi partisipatif efektif sebagai katalisator perubahan pola pikir dan pendorong adopsi awal inovasi pemasaran di tingkat BUMDesa.
Business Strategy Sustainability of Local Product in Facing Provincial Expansion in Central Kalimantan Kristinae, Vivy; Erwin Prasetya Toepak; Ani Mahrita; Jonathan Giovanni; Rian Sidiq Prakoso; Roby Sambung; Nurlia Eka Damayanti
International Journal of Contemporary Sciences (IJCS) Vol. 1 No. 8 (2024): June 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijcs.v1i8.10534

Abstract

Research in the expansion of the Greater Kotawaringin Province was identified as meeting the administrative requirements of the number of districts, namely 5 districts consisting of East Kotawaringin, West Kotawaringin, Seruyan, Lamandau and Sukamara districts. However, the Regional Original Income in the proposed area for the expansion of Kotawaringin Raya Province is deemed unable to support sustainable regional development, especially Lamandau and Sukamara Regencies, which are the smallest contributors of all the regencies in Central Kalimantan Province, so there is a need for more monitoring and evaluation. comprehensive. The proposed expansion of the Greater Barito Province, which consists of South Barito, East Barito, North Barito and Murung Raya Regencies, is considered to still not meet administrative requirements. The proposed expansion of Barito Raya Province still consists of 4 (four) districts or one more district has not been fulfilled, so the initial recommendation that can be given is that the regional government of the Greater Barito region can add one more district or can expand the districts first. The sustainability of the business strategy is built with a vision, mission and positive influence to improve the welfare of the SMes business. The effect of entrepreneurship on innovation has an impact on SMes business performance
Co-Authors Alayya Adistia Putri Ani Mahrita Bambang Supriyono Jonathan Giovanni Kembara Sopather Kristinae, Vivy Lilis Rosmainar Muhammad Takdir Bachtiar Nurlia Eka Damayanti Rahman, Sudarman Rian Sidiq Prakoso Roby Sambung Stevin Carolius Angga Vivy Kristinae Wahyu Nugroho Ysrafil, Ysrafil