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All Journal JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI
Gusti Putu Agus Darmataba
JURUSAN TEKNOLOGI INDUSTRI PERTANIAN FAKULTAS TEKNOLOGI PERTANIAN UNIVERSITAS UDAYANA
Agriculture, Biological Sciences & Forestry

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Pengaruh Konsentrasi Substrat Tepung Limbah Brem dan Lama Fermentasi Terhadap Produksi Kalsium Sitrat dengan Menggunakan Aspergillus niger ATCC 16404. Gusti Putu Agus Darmataba; Nyoman Semadi Antara; G.P. Ganda Putra
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 5 No 1 (2017): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

Dregs brem is a waste of manufacture brem, from basic materials are made to be brem, only about 75% has managed to become brem while the remaining 25% to waste, brem waste still contains 10% sugar and starch by 12%. This research was done to determine the effects of substrate concentration and fermentation time on the production of calcium citrate from waste brem by using Aspergillus niger. The research was experimental research, using a randomized block design factorial design, consisting of two factors. The first factor is the substrate concentration (25%, 30% and 35%), the second factor was the fermentation time (3, 5, and 7 days). The results showed that the concentrations of substrate and fermentation time very significant effect on the level of calcium citrate, total soluble solids and acidity (pH). The interaction of both treatment effect was not significant on the level of calcium citrate, total soluble solids and acidity (pH) fermented flour waste brem using Aspergillus niger. The average value is highest Ca-citrate in the treatment of substrate concentration of 30% amounting to 4.38 g/L and fermentation time 5 days amounted to 4.76 g/L. [Keywords]: Aspergillus niger, flour waste Brem, substrate concentration, time of fermentation, calcium citrate
Co-Authors G.P. Ganda Putra NYOMAN SEMADI ANTARA