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REVIEW ARTIKEL: ANALISIS AKTIVITAS ANTIOKSIDAN GENUS Syzygium MENGGUNAKAN METODE DPPH Manahan Situmorang; Devina Chandra; Dumartina Hutauruk; Widia Sari; Aufa Azkia; Theesyah R Sianturi; Eva Diansari Marbun
Jurnal Intelek Dan Cendikiawan Nusantara Vol. 2 No. 3 (2025): JUNI-JULI 2025
Publisher : PT. Intelek Cendikiawan Nusantara

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Abstract

Genus Syzygium telah banyak diteliti karena potensinya dalam menetralkan radikal bebas yang diketahui berperan dalam perkembangan penyakit degeneratif. Penelitian ini bertujuan untuk meninjau dan membandingkan aktivitas antioksidan dari berbagai spesies Syzygium dengan metode DPPH (2,2-diphenyl-1-picrylhydrazyl). Kajian dilakukan dengan cara pendekatan deskriptif melalui telaah literatur terhadap sepuluh artikel ilmiah. Berdasarkan hasil kajian, ekstrak daun Syzygium zollingerianum menunjukkan potensi antioksidan tertinggi dengan nilai IC₅₀ sebesar 0,57 μg/mL, melampaui efektivitas vitamin C sebagai pembanding. Aktivitas tinggi juga ditunjukkan oleh ekstrak biji S. polycephalum (IC₅₀ = 5,246 ppm) dan kulit batang S. guineense (IC₅₀ = 5,62 ppm). Beberapa studi menunjukkan bahwa daun S. polyanthum memiliki aktivitas sangat kuat dengan nilai IC₅₀ antara 13–15 ppm. Aktivitas kuat juga ditemukan pada buah Lobi-lobi (IC₅₀ = 50,01 ppm) dan daging buah kupa (IC₅₀ = 58,08 ppm). Sementara itu, aktivitas sedang hingga lemah ditemukan pada daun pucuk merah (IC₅₀ = 337 ppm), daun jamblang (IC₅₀ = 162,2 ppm), dan kulit batang jamblang (IC₅₀ = 164,3 ppm), sedangkan fraksi n-heksan menunjukkan aktivitas sangat lemah (IC₅₀ = 5235,6 ppm). Variasi aktivitas ini dipengaruhi oleh bagian tanaman, jenis pelarut, dan kandungan senyawa bioaktif seperti fenolik dan flavonoid. Kesimpulannya, spesies seperti S. zollingerianum, S. polycephalum, dan S. guineense memiliki potensi tertinggi, dengan bagian daun, biji, dan kulit batang sebagai sumber antioksidan paling efektif untuk aplikasi kesehatan preventif.
Edukasi Pemanfaatan Daun Kapulaga terhadap Tambak Udang di Desa Sikhorilafau Dumartina Hutauruk; Manahan Situmorang; Suharyanisa Suharyanisa; Yanti Musyawarah
Jurnal Nusantara Berbakti Vol. 3 No. 2 (2025): April: Jurnal Nusantara Berbakti
Publisher : Universitas Kristen Indonesia Toraja

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/jnb.v3i2.641

Abstract

The many negative effects on the use of chemical-based medicine have made researchers increasingly interested in looking for alternative natural ingredients that have high therapeutic potential and minimal side effects. One of the plants that is often used as a medicinal ingredient is cardamom (Amomum cardamomum L.), which comes from the Zingiberaceae family. Cardamom has been widely used by the community as an aromatic, carmimental (reducing gas in the stomach), cough medicine, mouth freshener, and various other traditional medicines. The content of bioactive compounds such as alkaloids, flavonoids, tannins, and saponins in cardamom is believed to play an important role in providing pharmacological effects. This study aims to analyze the bioactivity level of toxicity of cardamom leaf ethanol extract against shrimp larvae Artemia salina L. using the Brine Shrimp Lethality Test (BSLT) method and determine the LC₅₀ value as a toxicity parameter. The research method used an experimental quantitative approach with six treatment concentrations, namely 25 ppm, 50 ppm, 100 ppm, 200 ppm, 500 ppm, and 1000 ppm, as well as one negative control. Each treatment was replicated five times to get accurate results. A total of 350 Artemia salina larvae were used, with 10 larvae for each concentration test. Larval mortality was calculated after 24 hours of treatment to determine the potential toxicity of the extract. In addition to laboratory research, community service programs are carried out to increase coastal communities' understanding of the use of cardamom leaves for pond shrimp larvae. This education is important because the results of the research are expected to be the basis for the use of natural materials that are safer, more environmentally friendly, and sustainable in the management of shrimp ponds.
Co-Authors Aufa Azkia Cut Masyitah Thaib Devina Chandra Dhea Nur Fadhilah Dumartina Hutahuruk Dumartina Hutauruk Eva Diansari Marbun Jon Kenedy Marpaung Julia Susanti Monica Suryani Natanael Priltius Nurlaili Safitri Siti Nurbaya Steven Tandiono Suharyanisa Suharyanisa Supartiningsih - - Theesyah R Sianturi Theesyah R. Sianturi Widia Sari Yanti Musyawarah