KARAKTERISTIK EKSTRAK AMPAS KOPI BUBUK ROBUSTA (Coffea canephora) PADA PERLAKUAN KONSENTRASI PELARUT ETANOL DAN SUHU MASERASI

  • Ni Putu Diah JuliantariD Mahasiswa Program Studi Teknologi Industri Pertanian, Fakultas Teknologi Pertanian, Unud
  • Luh Putu Wrasiati Dosen Program Studi Teknologi Industri Pertanian, Fakultas Teknologi Pertanian, Unud
  • Ni Made Wartini Dosen Program Studi Teknologi Industri Pertanian, Fakultas Teknologi Pertanian, Unud

Abstract

Coffee grounds residue are the primary waste obtained from brewed coffee. Furthermore, some reports showed that coffee grounds residues still containes of bioactive compounds like caffeine and total phenolic compounds. This study aims 1) to know the effect of ethanol solvent concentration and maceration temperature on extract characteristics of coffee grounds robusta extract, and 2) to determine the concentration of ethanol solvent and best maceration temperature to of coffee grounds robusta extract. This experiment uses Factorial Random Design with two factors. The first factor concentration of ethanol solvent consists of 3 levels: 70%, 80%, 90%. The second factor is the maceration temperature which consists of 3 levels: 45oC, 60oC, 75oC. From the above two factors obtained 9 treatment combinations, each grouped into 2 groups as 18 units of experiments. The result showed that etanol solvent concentration, maceration temperature and interaction between trearments had high significantly effect on yield extract and caffeine content. The ethanol solvent concentration treatment had a significant effect, while the treatment of the maceration temperature and the interaction between trearments had a significantly effect on the total phenol. The treatment of ethanol solvent concentration 90% and maceration temperature 60oC was the best characteristic with robusta coffee extract yield 7.87±0.05% yield, 0.70±0.01% caffeine content and total phenol 11,052.83±1,124.30 mg GAE/100g.


Keywords : Coffee, coffee ground robusta, ethanol concentration, temperature of  maceration

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Published
2018-09-03
How to Cite
DIAH JULIANTARID, Ni Putu; WRASIATI, Luh Putu; WARTINI, Ni Made. KARAKTERISTIK EKSTRAK AMPAS KOPI BUBUK ROBUSTA (Coffea canephora) PADA PERLAKUAN KONSENTRASI PELARUT ETANOL DAN SUHU MASERASI. JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI, [S.l.], v. 6, n. 3, p. 243-249, sep. 2018. ISSN 2503-488X. Available at: <https://ojs.unud.ac.id/index.php/jtip/article/view/42688>. Date accessed: 23 jan. 2021. doi: https://doi.org/10.24843/JRMA.2018.v06.i03.p08.
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Articles

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