Indigenous Fungi from Batik Wastewater Exhibit Decolorization Potential for Remazol Red Dye

The study aimed to isolate and characterize indigenous fungi from batik waste-contaminated soil in Surakarta for their potential in decolorizing Remazol Red dye. Six fungal isolates (7 SPG, 10 SPJ, 12 SPL, 19 SPS, 41 SRP, and 99 RQX) were successfully isolated and screened for ligninolytic activity. The decolorization assay of Remazol Red at 250 ppm for 120 hours showed that the isolate with 41 SRP demonstrated the highest decolorization percentage of 87.72%. Morphological identification revealed the isolates (12 SPL, 19 SPS, 41 SRP, and 99 RQX) identified as Trichoderma sp., 7 SPG as Fusarium sp., and 10 SPJ as Penicillium sp.. These findings suggest the potential of indigenous fungi in bioremediating batik waste contamination.