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<title><![CDATA[Uji Aktivitas Antioksidan Ekstrak Umbi  Porang (Amorphophallus muelleri Blume)]]></title>
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<namePart>JUNIRIUS HALLA</namePart>
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<namePart>REFLI</namePart>
<role><roleTerm type="text">Dosen Pembimbing 1</roleTerm></role>
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<name type="Personal Name">
<namePart>Vinsensius Manek Ati</namePart>
<role><roleTerm type="text">Ketua Penguji</roleTerm></role>
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<namePart>Ike Septa F Muktiawati</namePart>
<role><roleTerm type="text">Penguji 2</roleTerm></role>
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<name type="Personal Name">
<namePart>DJEFFRY AMALO</namePart>
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<publisher><![CDATA[UPT Perpustakaan Undana]]></publisher>
<dateIssued><![CDATA[2022]]></dateIssued>
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<edition><![CDATA[Published]]></edition>
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<languageTerm type="text"><![CDATA[Indonesia]]></languageTerm>
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<note>Tanaman porang (Amorphophallus muelleri Blume) mempunyai senyawa 
glukomannan yang berpotensi antioksidan. Tujuan dari penelitian untuk mengetahui 
persentase rendemen dan aktivitas antioksidan ekstrak umbi porang (Amorphophallus 
muelleri Blume). Ekstraksi umbi porang menggunakan metode maserasi dengan 
perbandingan pelarut etanol : hexane (100 : 0, 70 : 30, 50 : 50, 30 : 70, 0 : 100) ml
dan asam askorbat sebagai pembanding. Pengujian antioksidan menggunakan metode 
DPPH. Data yang diperoleh dianalisis secara deskripsi kuantitatif. Hasil perhitungan 
persentase rendemen pada ekstrak kombinasi pelarut etanol : hexane (100 : 0, 70 : 30, 
50 : 50, 30 : 70, 0 : 100) ml menunjukkan persentase rendemen secara berturut-turut 
12,5%, 10 %, 6%, 4,5%, dan 2,5% dan perhitungan nilai IC50 pada ekstrak kombinasi 
pelarut etanol : hexane (100 : 0, 70 : 30, 50 : 50, 30 : 70, 0 : 100) ml menunjukkan 
nilai IC50 secara berturut-turut 116,186 ppm, 175,558 ppm, 215,510 ppm, 331,778 
ppm, dan 638,25 ppm. Sedangkan asam askorbat sebagai pembanding memiliki nilai 
IC50 11,83 ppm.

Kata Kunci: DPPH, Etanol, Heksana, Amorphophallus muerelli Blume</note>
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