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All Journal JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI
Gede Asstaradi Kusuma
Mahasiswa Program Studi Teknologi Industri Pertanian, Fakultas Teknologi Pertanian, Unud
Agriculture, Biological Sciences & Forestry

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Fermentasi Produksi Asam Sitrat menggunakan Aspergillus Niger ATCC 16404 dengan Substrat Hidrolisat Cair Limbah Padat Industri Brem Gede Asstaradi Kusuma; Nyoman Semadi Antara; Ni Putu Suwariani
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 7 No 4 (2019): Desember
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (270.553 KB) | DOI: 10.24843/JRMA.2019.v07.i04.p13

Abstract

Dregs of solid waste brem industry contained 12 percent of sugar and 10,8 percent of starch. Component contained in the dregs are expected to produce citric acid. The aims of this study were to determine the effect of static cultivation on the production of citric acid from liquid hydrolyzate brem waste by using Aspergillus niger. The experimental design used in this study was a simple randomized block design (RAK), which the static cultivations (0, 1, 2, 3 days) as a treatment. The results showed that the static cultivation treatment significantly affected the level of acidity (pH), total soluble solids, biomass, reducing sugar, calcium citrate, citric acid and yield. The static cultivation for 1 day was the best treatment to produce Ca-citrate which the production level was 3,84 ± 0,05 g/L. By the stoichiometry method the citric acid production could be calculated, which equal to 2,12 ± 0,03 g/L. Keywords: Aspergillus niger, dregs of brem, static cultivation, Ca-citrate, citric acid
Co-Authors Ni Putu Suwariani NYOMAN SEMADI ANTARA