itu PRODUKSI HIDROLISAT PROTEIN ANTIOKSIDAN MELALUI HIDROLISIS ENZIMATIK PROTEIN KULIT AYAM BROILER DENGAN ENZIM PAPAIN
PRODUKSI : HIDROLISAT PROTEIN ANTIOKSIDAN MELALUI HIDROLISIS ENZIMATIK PROTEIN KULIT AYAM BROILER DENGAN ENZIM PAPAIN
Abstrak
Penelitian ini bertujuan untuk menentukan aktivitas antioksidan hidrolisat protein yang dihasilkan dari proses hidrolisis enzimatik protein kulit ayam dengan menggunakan variasi konsentrasi enzim papain. Proses hidrolisis dilakukan dengan variasi konsentrasi enzim 1, 3,dan 5% (b/b protein), pada pH 7, suhu 50oC dan waktu hidrolisis 24 jam. Parameter yang diukur meliputi derajat hidrolisis, persen peredaman radikal DPPH (diphenylpicryl hidrazyl), dan komposisi asam amino hidrolisat protein yang paling aktif antioksidan. Hasil penelitian menunjukkan penggunaan konsentrasi enzim yang berbeda menghasikan hidrolisat protein dengan derajat hidrolisis dan persen peredaman DPPH yang berbeda. Penggunaan konsentrasi enzim papain 1, 3, dan 5% menghasilkan hidrolisat protein dengan derajat hidrolisis berturut-turut sebesar 9,3±1,8, 18,09±5,6, dan 23,15±6.33%, dan persentase hambatan radikal DPPH pada konsentrasi uji 100 ppm berturut-turut sebesar 16,75±0,07, 58,35±0,00, dan 52,99±0,07%. Hidrolisat protein yang diperoleh menggunakan enzim papain 3% (b/b protein) menunjukkan persen peredaman tertinggi dengan nilai IC50 92,98 ppm, memiliki komposisi asam amino tertiggi asam glutamat dan terendah valine.
Kata kunci: antioksidan, enzim papain, hidrolisat protein, kulit ayam
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