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Journal : Jurnal Kimia (Journal of Chemistry)

STUDI PEROMBAKAN ZAT WARNA TEKSTIL REMAZOL RED RB SECARA AEROB MENGGUNAKAN BAKTERI ENTEROBACTER AEROGENES YANG DIISOLASI DARI LUMPUR LIMBAH TEKSTIL I Dewa Sastrawidana
Jurnal Kimia (Journal of Chemistry) Vol. 5, No. 2 Juli 2011
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

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Abstract

The objective of this research is to study the potential use microorganism which is identified as Enterobacter aerogenes isolated from sludge of textile wastewater treatment plant. Reactor was operated to treat remazol red RB azo dyes under aerobic condition. The performance of the bioreactor was evaluated by monitoring color removal within various pH of the medium, dye concentrations and incubation times. The degradation products were characterized by UV–vis techniques. The result showed, Enterobacter aerogenes bacteria was able to successfully decolourize 75 mg/L of remazol red RB azo dyes under aerobic condition, at pH 7-8 and for seven days incubation with biodegradation efficiency of up to 87,9%.
PIGMEN MERAH DARI JAMUR YANG DIISOLASI DARI TANAH TEMPAT PEMBUANGAN LIMBAH SUSU I D. K. Sastrawidana; Siti Maryam; I Ketut Sudiana
Jurnal Kimia (Journal of Chemistry) Vol. 9, no. 1 Januari 2015
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (73.843 KB) | DOI: 10.24843/JCHEM.2015.v09.i01.p02

Abstract

The use of synthetic dyes in enhancing the consumer appeal of the product is increasing, but most synthetic dyes are toxic, carcinogenic and difficult to degrade, causing environmental pollution. The purpose of this study is to analyze the characteristics of the red pigments produced by fungi isolated from soil contaminated with goat milk. Stages of research include semisolid fermentation using PDA and milk as a supporting medium for pigment production. Pigment analysis involves determining the characteristics of the spectrum as well as the stability of the colour upon pH and temperature treatments. The results showed that the spectrum of the red pigment from the fungus consisted of two peaks at 416 and 493 nm, the colour was stable at a temperature range of 40-90oC and at pH range of 5-8.