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All Journal Jurnal Teknologi Industri Pertanian Jurnal Natur Indonesia Jurnal Tumbuhan Obat Indonesia Agrointek agriTECH Warta IHP (Warta Industri Hasil Pertanian) Jurnal Sains dan Teknologi Pangan Jurnal Aplikasi Teknologi Pangan Agritechnology : Jurnal Teknologi Pertanian IGKOJEI: Jurnal Pengabdian Masyarakat Jurnal Teknologi Pangan Makara Journal of Science Jember Medical Journal (JMJ) DIGIMAS: Jurnal Transformasi Digital Masyarakat
Gino Nemesio Cepeda
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health Social Sciences Veterinary Other

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Kapasitas dan Stabilitas Senyawa Antibakteri Ekstrak Kulit Kayu Akway (Drimys piperita) terhadap Pertumbuhan Escherichia coli Patogenik Roreng, Mathelda Kurniaty; Cepeda, Gino Nemesio
Jurnal Agroteknologi Vol. 19 No. 2 (2025)
Publisher : Fakultas Teknologi Pertanian Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jagt.v19i2.60029

Abstract

Drimys piperita known with local name of akway by Sougb tribe communities lived in district of Anggi, regency of Pegunungan Arfak, Province of West Papua. The. Plant was used as tradisional medicines for treating malaria and enhancing vitality. The objectives of research were to know the group of compounds composed of akway bark ethanolic extracts, potency of akway extracts as an antibacterial agent on inhibiting growth of pathogenic Escherichia coli and stability of antibacterial compounds of extract on heating of 100ºC for 0−20 minutes. Qualitative assays of compounds composed extract were done on compound class of terpenoids, alkaloids, saponins, flavonoids, tannins dan steroids. Antibacterial capacity and stability assays were done by using agar well diffusion method. The results indicated that ethanolic extracts of akway content compound class of terpenoids, alkaloids, saponins, flavonoids, and tannins. Ethanolic extracts of akway could inhibit growth of pathogenic Escherichi coli ATCC 43894 and ATCC10798 on minimum inhibiting concentration of 1.05% and 1.26% respectively. The antibacterial properties of akway extract was stable on heating of 100ºC for 0−20 minutes. Ethanolic extracts of akway bark was potential as source of natural antibacterial agent for inhibiting growth of pathogenic E. coli.Keywords: antibacterial capacity, Drimys piperita, extracts, stability
Kapasitas dan Stabilitas Senyawa Antibakteri Ekstrak Kulit Kayu Akway (Drimys piperita) terhadap Pertumbuhan Escherichia coli Patogenik Roreng, Mathelda Kurniaty; Cepeda, Gino Nemesio
Jurnal Agroteknologi Vol. 19 No. 2 (2025)
Publisher : Fakultas Teknologi Pertanian Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jagt.v19i2.60029

Abstract

Drimys piperita known with local name of akway by Sougb tribe communities lived in district of Anggi, regency of Pegunungan Arfak, Province of West Papua. The. Plant was used as tradisional medicines for treating malaria and enhancing vitality. The objectives of research were to know the group of compounds composed of akway bark ethanolic extracts, potency of akway extracts as an antibacterial agent on inhibiting growth of pathogenic Escherichia coli and stability of antibacterial compounds of extract on heating of 100ºC for 0−20 minutes. Qualitative assays of compounds composed extract were done on compound class of terpenoids, alkaloids, saponins, flavonoids, tannins dan steroids. Antibacterial capacity and stability assays were done by using agar well diffusion method. The results indicated that ethanolic extracts of akway content compound class of terpenoids, alkaloids, saponins, flavonoids, and tannins. Ethanolic extracts of akway could inhibit growth of pathogenic Escherichi coli ATCC 43894 and ATCC10798 on minimum inhibiting concentration of 1.05% and 1.26% respectively. The antibacterial properties of akway extract was stable on heating of 100ºC for 0−20 minutes. Ethanolic extracts of akway bark was potential as source of natural antibacterial agent for inhibiting growth of pathogenic E. coli.Keywords: antibacterial capacity, Drimys piperita, extracts, stability
Senyawa Fenolik Dan Kapasitas Stabilisasi Radikal Bebas Ekstrak Kulit Batang Mangrove (Rhizophora Apiculata) Cepeda, Gino Nemesio; Situngkir, Risma Uli; Killian, Yusril Rizat
Jurnal Teknologi Pangan Vol 20, No 1 : JUNI 2026
Publisher : UPN VETERAN JAWA TIMUR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jtp.v20i1.5678

Abstract

Rhizopora apiculata merupakan tumbuhan obat tradisonal yang dimanfaatkan untuk terapi berbagai jenis penyakit seperti  sakit gigi, malaria dan diare. Tumbuhan ini juga memiliki aktivitas antifungi, antibakteri, antiseptik, antiradang, antiulcer dan bermanfaat untuk mempercepat penyembuhan luka. Penelitian ini ditujukan untuk mengetahui potensi ekstrak etilasetat kulit batang R. apiculata sebagai sumber antioksidan alami yang meliputi kandungan total fenol, flavonoid dan kapasitas antioksidannya. Proses ekstraksi senyawa antioksidan dilakukan menggunakan metode maserasi pada suhu ruang selama 72 jam. Perngujian kandungan total fenol dan flavonoid ekstrak masing-masing dilakukan menggunakan metode Folin-Ciocalteu dan alumunium klorida sedangkan pengujian kapasitas stabilisasi radikal bebas dilakukan menggunakan metode DPPH-radical scavenging assay. Hasil pengujian menunjukkan bahwa kandungan total fenol dan flavonoid ekstrak pada konsentrasi 0,005-0,04% masing-masing sebesar 4,28-54,18 µg EAG/ml dan 8,78-108,39 µg EQ/ml. Kapasitas stabilisasi radikal bebas ekstrak dan vitamin C pada konsentrasi 0,04% masing-masing sebesar 92,07% dan 95,58%. Ekstrak etilasetat kulit batang R. apiculata berpotensi sebagai sumber antioksidan alami.
Co-Authors - Murtiningrum Bimo Budi Santoso Dolly Citra Manalu Eka Syartika Eka Syartika Elva Intan Permatasari Freddy Pattiselanno Herlina Enika Dewi Mambrasar Holyness Nurdin Singadimedja Hutasoit, Hostalige Isak Silamba Isak Silamba Isak Silamba Isak Silamba Isak Silamba Isak Silamba Killian, Yusril Rizat Mathelda Kurniaty Roreng Mathelda Kurniaty Roreng Meike Meilan Lisangan Muhammad Djunaidi Nilawati, Nitia Nilawati, Nitia Nitia Nilawati Nitia Nilawati Orisoe, Dressy Leonora Ratih Dewanti -Hariyadi Santoso, Bimo Budi Silamba, Isak Situngkir, Risma Uli Supar, Supar Syartika, Eka Syartika, Eka Tatak Reko Purwanto Trisiwi Wahyu Widayati Wulan Tanlain Yuliana Waromi