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All Journal JURNAL ILMIAH PLATAX Jurnal Perikanan dan Kelautan Jurnal Penelitian Pendidikan IPA (JPPIPA) Al-Kimia Jurnal Biologi Tropis Jurnal Farmamedika (Pharmamedica Journal) ad-Dawaa : Journal of Pharmaceutical Sciences Jurnal Sains dan Edukasi Sains Cokroaminoto Journal of Chemical Science Medical Sains : Jurnal Ilmiah Kefarmasian Jurnal Ilmiah Sains JURNAL PENGABDIAN MASYARAKAT YAMASI Analit: Analytical and Environmental Chemistry Journal of Pharmaceutical Science and Herbal Technology Jurnal Novem Medika Farmasi Bina Bahari : Jurnal Pengabdian Kepada Masyarakat Medical Sains : Jurnal Ilmiah Kefarmasian Jurnal Sains dan Kesehatan
Tahirah Hasan
Universitas Islam Makassar
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Other

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UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DAUN MENGKUDU (Morinda citrifolia L.) ASAL PULAU TALIABU PROVINSI MALUKU UTARA DENGAN METODE DPPH Irfayanti, Nur Alfiah; Hasan, Tahirah; Mazriatii
Journal of Pharmaceutical Science and Herbal Technology Vol. 8 No. 2 (2023): Journal of Pharmaceutical Science and Herbal Technology
Publisher : STIKES Nani Hasanuddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35892/jpsht.v1i1.1436

Abstract

Penelitian uji aktivitas antioksidan ekstrak etanol daunmengkudu (Morinda citrifolia L.) asal Pulau Taliabu Provinsi Maluku Utara dengan metode DPPH telah dilakukan. Penelitian ini bertujuan untuk menentukan nilai IC50 daun mengkudu (Morinda citrifolia L.) asal Pulau Taliabu Provinsi Maluku Utara dengan metode DPPH. Metode penelitian meliputi ekstraksi dengan cara maserasi menggunakan pelarut etanol 70% dilanjutkan dengan uji aktivitas antioksidan menggunakan metode DPPH. Pengujian aktivitas antioksidan ekstrak etanol daun mengkudu terhadap radikal bebas DPPH menggunakan spektrofotometer visibel pada panjang gelombang 515 nm. Hasil analisis menunjukkan bahwa ekstrak etanol daun mengkudu memiliki nilai IC50 sebesar 275,0792 ± 1,929 µg/mL. Kemampuan aktivitas antioksidan ekstrak etanol daun mengkudu 0,009 kali dibandingkan dengan aktivitas antioksidan pembanding asam askorbat dengan nilai IC50 2,5147 ± 0,088 µg/mL.
Amino Acid Content Profile and Antioxidant Activity Test of Spirulina Platensis Bioactive Protein Extract Using DPPH Method Tahirah Hasan; Nur Ida; Yasnidar Yasir
Jurnal Penelitian Pendidikan IPA Vol 11 No 4 (2025): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i4.10916

Abstract

The study of Amino Acid Content Profile and Antioxidant Activity Test of Spirulina platensis Bioactive Protein Extract with DPPH Method has been conducted. This study aims to determine the protein content and IC50 value of Spirulina platensis bioactive protein extract with DPPH method. The research method includes extraction of Spirulina platensis powder using buffer A solvent. Determination of protein content with Lowry method using Bovine Serum Albumin (BSA) as standard solution and antioxidant activity test with DPPH method. The results of the analysis of protein content of Spirulina platensis extract obtained a level of 39.51%. The antioxidant activity test against DPPH free radicals showed that Spirulina platensis protein extract has antioxidant activity with IC50 value of 599.17 ± 3.75 ppm.
Co-Authors . Apriansyah A. Tenriugi Daeng Pine Abd. Rauf Patong Abd. Wahid Wahab Abdul Wahid Suleman Abidin, Araf Asraf Ardiansyah Habar Ardillah Ardillah Arfiani Arifin Besse Yuliana Desriani Lestari Dwi Sasongko Mardiono Endah Dwijayanti Evianti Evianti Harningsih Karim Hasanuddin, Rusman Hasri Hasri Hasri Helena, Shifa Ikha Safitri Ikha Safitri Irfayanti, Nur Alfiah Irman Idrus Irwan Jasmiadi, Jasmiadi Junaidin Lucky Hartanti Lucky Hartanti, Lucky M. Natsir Djide M. Rusdi Mazriatii Mega Sari Juane Sofiana Mega Sari Juane Sofiana Mora Muhammad Jusman Risaldi Musdalifah Nur Alim Nur Atika Aqila Nur Ida Nurdiansyah, Syarif Irwan Nurdin, Syamsidar Rachmin Munadi Riska Damayanti, Riska Riska Ninsi Riza Linda Sitti Fauziah Noer Syarif Irwan Nurdiansyah Titi Firdha Warsidah, Warsidah Yasnidar yasnidar yasir Yasnidar Yasnidar Yasnidar, Yasnidar Yusniawati, Wa Zulfitri Zulfitri