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All Journal Biology, Medicine, & Natural Product Chemistry KOVALEN: Jurnal Riset Kimia Jurnal Penelitian Sains Indonesian Journal of Pure and Applied Chemistry Jurnal Kartika Kimia CHEDS: Journal of Chemistry, Education, and Science Jurna Beta Kimia
Susvira, Dian
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health

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Journal : Jurna Beta Kimia

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Skrining Fitokimia dan Aktivitas Antioksidan Ekstrak Metanol Biji Buah Pare (Momordica charantia L.) Sriwijayanti, Sriwijayanti; Situmeang, Boima; Yulianti, Nani; Susvira, Dian; Widiyanto, Holisha
Jurnal Beta Kimia Vol 4 No 1 (2024): Volume 4, Nomor 1: Mei 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jbk.v4i1.15487

Abstract

Antioksidan merupakan senyawa yang dapat merangkat radikal bebas. Salah satu tanaman yang diduga dapat merangkat senyawa radikal bebas adalah biji buah pare (Momordica charantia L.). Masyarakat telah menggunakan pare sebagai makanan sehari-hari dan juga telah lama dipercaya sebagai obat tradisional untuk mengobati berbagai macam penyakit. Tujuan dari penelitian ini adalah uji skrining fitokimia dan uji aktivitas antioksidan ekstrak metanol biji buah pare. Ekstraksi dilakukan dengan menggunakan metode maserasi. Uji skrining fitokimia dilakukan dengan menggunakan berbagai reagent kimia untuk analisis senyawa golongan alkaloid, fenoli, flavonoid, tannin, triterpenoid dan steroid. Uji Aktivitas antioksidan dengan menggunakan metode DPPH. Hasil uji skrining fitokimia didapatkan bahwa ekstrak metanol biji buah pare positif mengandung senyawa golongan alkaloid, flavonoid, fenolik, triterpenoid, steroid dan tanin. Hasil uji aktivitas antioksidan didapatkan nilai IC50 sebesar 137,99 ppm yang termasuk dalam kategori sedang.
Efektivitas Perendaman Larutan Nanas Queen Victoria sebagai Pereduksi Logam Fe pada Kerang Hijau (Perna viridis) Widiyanto, Holisha; Julianti, Julianti; Sriwijayanti, Sriwijayanti; Sari, Puspita; Situmeang, Boima; Susvira, Dian
Jurnal Beta Kimia Vol 4 No 2 (2024): Volume 4, Nomor 2: November 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jbk.v4i2.18673

Abstract

Excessive Fe heavy metal contamination cause health problems for humans. One of the marine biota that is susceptible to heavy metal contamination is green mussels. Green mussels (Perna viridis) are a food that is very often consumed by humans. This Fe metal which derived with materials that are chelating agents such as citric acid, one of the fruits that contain citric acid is the Queen Victoria pineapple. The research aims to determine the effectiveness of soaking Queen Victoria pineapple solution in reduces Fe metal in green mussels. The pineapple solution immersion test was carried out with varying concentrations of 25, 50 and 75% with soaking times of 15, 30 and 45 minutes which were analyzed using inductively coupled plasma (ICP). The highest reduction results were at a concentration of 25% with a soaking time of 30 minutes, amounting to 60.58%.
Co-Authors Asad, Hafidz Al Boima Ramses Situmeang Faradin, Faradin Fauzantoro, R. A. Hartono, Rudi Jinanti, Nazwa Julianti Julianti, Julianti Muhammad Akbar Nani Yulianti Ninik Triayu Susparini, Ninik Triayu Nurhayati Bialangi Puspita Sari Ramadhan, Muhammad Bagus Sagala, Iman Situmeang, Boima Sriwijayanti Sriwijayanti, Sriwijayanti Widiyanto, Holisha