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Yunus, Muhammad Arham
Politeknik Negeri Ujung Pandang
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Extraction of Carrageenan from Seaweed Eucheuma cottonii Using Sonication Method Muhammad Arham Yunus; A. Miftah Alya Patrisya; Athiyah Nur Artanti; Indriantika Pagayang; Nur Ainun Aswa; Fiqry Maulana Aras
Hayyan Journal Vol. 2 No. 2 (2025): June
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i2.4834

Abstract

This study aimed to extract carrageenan from the red seaweed Eucheuma cottonii using potassium hydroxide (KOH) as solvent with the sonication method. Extraction was performed at 80°C for 60 minutes with a seaweed-to-solvent ratio of 1:30 (w/v) at an ultrasonic frequency of 40 kHz. The optimized extraction conditions yielded a carrageenan yield of 21.08%. Quality parameters evaluated included moisture content, ash content, viscosity, and gel strength. Moisture content (0.07%), ash content (0.37%), and viscosity (34.2 cP) all met FCC and FAO standards. However, the gel strength of 14.361 g/cm² did not meet the commercial standard.
Optimasi Konsentrasi KOH pada Ekstraksi Karagenan dari Rumput Laut Eucheuma cottonii Muhammad Arham Yunus; Fausiah Hasan; Yuyun Natasya Nawir; Irma Yunita; Nur Madina; Anggun Pratiwi
Saintifik: Jurnal Matematika, Sains, dan Pembelajarannya Vol 12 No 1 (2026): Saintifik: Jurnal Matematika, Sains, dan Pembelajarannya
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/saintifik.v12i1.624

Abstract

Penelitian ini memproduksi karagenan murni dari rumput laut Eucheuma cottonii menggunakan ekstraksi konvensional dengan pelarut KOH serta mengevaluasi pengaruh konsentrasi KOH terhadap kualitas produk. Ekstraksi dilakukan pada suhu 90°C selama 3 jam (pH 9) dengan variasi KOH 0,1 M, 0,5 M, dan 1,5 M. Hasil terbaik diperoleh pada konsentrasi KOH 1,5 M dengan rendemen 50%, kadar air 9,5%, kadar abu 36,98%, kadar abu tak larut asam 6,98%, viskositas 3 cP, dan kekuatan gel 5278,45 g/cm². Karakterisasi FTIR menunjukkan jenis kappa karagenan, ditandai oleh puncak 3,6-anhidrogalaktosa pada 923,93 cm⁻¹ dan galaktosa-4-sulfat pada 835,21 cm⁻¹. Konsentrasi KOH terbukti berpengaruh signifikan terhadap mutu karagenan yang dihasilkan.
Co-Authors . Sulfikar A Mufhida Rezky Amalia Azzahra Hayat A. Miftah Alya Patrisya Afrianti S, Lamuru Afriyanti S. Lamuru Ahmad Nurul Muttaqin Ahmad Zubair Sultan Anggun Pratiwi Ansar, Nur Iklil Aflah Athiyah Nur Artanti Dian Ranggina Fadhil Dwi Syahputra Fausiah Hasan Fiqry Maulana Aras Gunarya Muhammad Rachman Harun Pampang Indah , Raya Indah, Raya Indriantika Pagayang Irma Yunita Lestari, Sry Ayu M. Nur Fahresya Ananda S Mahirullah Mahirullah Maria Assumpta Nogo Ole Mimin , Septiani Muh Fadil Mufli Muhammad Anshar Nur Ainun Aswa Nur Madina Nurfiansyah Nurfiansyah Nurfiansyah Nurfiansyah, Nurfiansyah Sahira, Fadhia Zahra Septiani, Mimin Suci Rahmadani Yuyun Natasya Nawir Zakiyah Darajat Zakiyah Darajat Zuhrotul Fikri Ilma