Perbaikan Proses Produksi Antosianin dari Kelopak Bunga Rosella dengan Ekstraksi Berbantuan Ultrasound

*Meilya Suzan Triyastuti -  Program Studi Teknologi Pengolahan Produk Perikanan, Politeknik Kelautan dan Perikanan Bitung, Indonesia
Mohamad Djaeni -  Departemen Teknik Kimia, Universitas Diponegoro, Indonesia
Revisi terakhir: 21 Agu 2019; Diterima: 24 Agu 2019; Diterbitkan: 11 Nov 2019; Tersedia online: 30 Agu 2019.
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Kelopak bunga rosella mengandung senyawa bioaktif diantaranya Antosianin. Kelopak bunga rosella mempunyai pigmen berwarna ungu yang berpotensi sebagai zat pewarna alami untuk menggantikan pewarna sintetis Violet GB. Pigmen warna ungu ini berasal dari senyawa antosianin. Namun senyawa antosianin ini mudah terdegradasi pada temperatur diatas 70°C, sehingga diperlukan metode ekstraksi yang tepat pada kondisi optimum. Metode yang digunakan yaitu ekstraksi dengan bantuan gelombang ultrasonik (Ultrasound Assisted Extraction) dan dioptimasi menggunakan software Design Expert. Hasil penelitian menunjukkan bahwa kondisi optimum ekstraksi pada waktu ekstraksi 15 menit, rasio sampel dan pelarut 15 gr/ml dan temperatur ekstraksi 50°C dengan kadar antosianin sebesar 206,996 ppm

Kata Kunci
Antosianin; Kelopak Bunga Rosella; Ultrasound Assisted Extraction

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