ISSN: 0973-7510

E-ISSN: 2581-690X

Open Access
Erman Munir , Nunuk Priyani, Dwi Suryanto, and Zulfatun Naimah
Laboratory of Microbiology, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Sumatera Utara, Jl Bioteknologi No. 1 Medan 20155 Indonesia.
J Pure Appl Microbiol. 2017;11(2):669-675
https://doi.org/10.22207/JPAM.11.2.04 | © The Author(s). 2017
Received: 24/01/2017 | Accepted: 12/03/2017 | Published: 30/06/2017
Abstract

Wastewater of textile industry is considered as toxic waste containing various dyes and chemicals that makes it recalcitrants. Decolorization of wastewater of the industry was conducted in our laboratorium using fungi isolated from a local forest of North Sumatera. Six potential isolates, previously screened for the ability to grow in plate media containing 100% of wastewater, were used for the study in a liquid culture condition. The results show that all tested isolates grew. The growth response of isolates cultured in a media supplemeted with 1% glucose was about two to three times higher than that of cultures without glucose. In the first culture, the fungi grew on the surface of the media however in the latter experiment, it concentrated on the bottom of culture flask for all of tested isolates. Decolorization analysis shows that all isolates were able to decolorize the wastewater. The cultures supplemented with glucose decolorized wastewater from 20% to 46%, while cultures without glucose did much higher about 56% to 92%. Furthermore, a microscopic analysis shows that dyes molecules in the wastewater were absorbed to fungal mycelia. The findings show that extraceluler molecules existed on the surface of fungal mycelia play an important role in the absorption of dye molecules.

Keywords

Decolorization, Fungal biomass, Mycelial absorption of dyes, wastewater of textile industry.

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© The Author(s) 2017. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.