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All Journal Journal of Degraded and Mining Lands Management Communications in Science and Technology
Thipraksa, Junjira
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering

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Decolorization of Rhodamine B and conversion into saturated fatty acids by laccase-producing fungi isolated from lake sediment Thipraksa, Junjira; Michu, Panisa; Kongthong, Alisa; Chaijak, Pimprapa
Journal of Degraded and Mining Lands Management Vol. 11 No. 2 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.112.5443

Abstract

The persistence of the carcinogenic Rhodamine B dye poses significant risks to human health. Utilizing a unique fungal strain for its degradation offers a sustainable solution to mitigate these hazards. Bioremediation techniques have demonstrated substantial promise in addressing recalcitrant pollutants such as dyes. In this particular study, laccase-producing fungi were carefully chosen for their potential to break down the toxic textile dye Rhodamine B. These selected fungi Cerrena unicolor FBR03 exhibited an impressive maximum degradation rate of 95.10%. Additionally, an analysis using GC-MS revealed the emergence of breakdown products, including 2-cyclopenten-1-one, 3-hydroxy-2-methyl, thymine, dodecanoic acid, tetradecanoic acid, n-hexadecanoic acid, and dibutyl phthalate. These results underscore the potential of this fungal strain as a promising organism for the effective degradation of dye compounds, while simultaneously producing valuable saturated fatty acids as by-products.
Bioremediation and microbiome-generating electricity in butter catfish (Ompok bimaculatus) aquaculture wastewater treatment via water fern (Azolla microphylla) Thipraksa, Junjira; Yooyen, Thanapon; Chainapong, Thaweedet; Michu, Panisa; Kongthong, Alisa; Chaijak, Pimprapa
Journal of Degraded and Mining Lands Management Vol. 12 No. 1 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.121.6675

Abstract

The increasing volume of wastewater from fish farming poses a serious environmental threat. This study investigated a novel treatment method for butter catfish (Ompok bimaculatus) wastewater using a constructed wetland-microbial fuel cell (CW-MFC) integrated with the water fern Azolla microphylla. The system was effectiveness in removing pollutants like electrical conductivity (EC), total dissolved solids (TDS), ammonium, nitrate, nitrite, and phosphate was evaluated. Additionally, the electricity generation capabilities were measured. The CW-MFC system achieved significant removal rates: 67.65% for EC, 61.67% for TDS, 100% for ammonium, 75.00% for nitrate, 81.25% for nitrite, and 70.00% for phosphate. Furthermore, the system generated a maximum open-circuit voltage (OCV) of 690±90 mV, a current density (CD) of 7.29±0.43 mA/m³and a power density (PD) of 0.37±0.04 mW/m³. Analysis of the microbial community revealed a diverse root consortium dominated by bacterial genera including Phreatobacter, Emticicia and Rhodobacter, along with fungal genera such as Strelitziana, Ramularia, Cladosporium,Trichomerium, Cercospora, Erythrobasidium and Fusarium. These findings suggest that CW-MFC systems integrated with A. microphylla offer a promising approach for sustainable and efficient treatment of wastewater from catfish farming while simultaneously generating bioelectricity.
Exploring the impact of co-fermentation Saccharomyces cerevisiae and Lactobacillus sp. on stingless bee-honey cider fermentation Thipraksa, Junjira; Michu, Panisa; Kongthong, Alisa; Chaijak, Pimprapa
Communications in Science and Technology Vol 8 No 1 (2023)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.8.1.2023.1185

Abstract

Stingless bee honey is a nutritious food that contains a variety of vitamins, minerals, enzymes, and antioxidants. It is known to have higher nutritional and medicinal properties compared to honey produced by other bee species. Cider is a well-known functional drink that contains high antioxidants, which can help protect against cellular damage caused by free radicals. This study aimed to investigate the potential of co-fermentation with yeast (Saccharomyces cerevisiae) and bacterium (Lactobacillus sp.) in producing high-antioxidant honey cider when compare with standard antioxidant. The results showed that honey cider co-fermented with both microorganisms for 14 days had significantly higher antioxidant activity (145.27 ± 0.20 µg TE/mL) compared to single culture fermentation (p < 0.05). Gas chromatography-mass spectrometry (GC-MS) analysis revealed the presence of several bioactive compounds in the stingless bee honey cider. These compounds include methylenecyclopropanecarboxylic acid, 2(5H)-furanone, 2-methylbicyclo[4.3.0]non-1(6)-ene, bicyclo[3.1.0]hex-2-ene, 4-methyl-1-(1-methylethyl), D-limonene, benzene, 1-(1-butenyl)-4-methoxy, and phytol. These compounds possess various beneficial activities, such as antioxidant, anti-inflammatory, antimicrobial, and anticancer properties. The identification of these compounds in the stingless bee honey cider suggests that it may have potential health benefits beyond its nutritional value. The co-fermentation approach using S. cerevisiae and Lactobacillus sp. could be considered a promising strategy for developing antioxidant-enriched honey cider with potential health benefits.
Melanoidin degradation and electric energy production from palm oil waste using immobilized laccase-producing bacteria Palasai, Wasan; Rothjanawan, Kronsirinut; Kongthong, Alisa; Yodrach, Rachchanon; Thipraksa, Junjira; Chaijak, Pimprapa
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1700

Abstract

Melanoidin is a high molecular weight pigment that is problematic in agricultural wastewaters like palm oil mill effluent (POME). This study presents a novel approach combining a laccase-producing bacterial consortium primarily Lactiplantibacillus plantarum, immobilized on hydrothermally modified granular activated carbon (GAC) for efficient melanoidin degradation and simultaneous electricity generation in a microbial fuel cell (MFC). The hydrothermal modification of GAC enhanced bacterial immobilization and electron transfer, contributing to improved biodegradation performance. Gas chromatography-mass spectrometry (GC-MS) analysis identified a number of key degradation metabolites including silanediol, dimethyl; (1-methylethyl)benzene; limonene; and butylated hydroxytoluene, confirming an effective melanoidin breakdown. The system achieved 81.36 ± 1.07% melanoidin removal with electrochemical characterization that showed a maximum current density of 61.50 ± 1.98 mA/m² and power density of 1.51 ± 0.10 mW/m². These findings demonstrated the synergistic effect of hydrothermally modified GAC and the selected bacterial consortium offering a sustainable and innovative strategy for treating melanoidin-rich wastewater while recovering bioenergy.
Co-Authors Chaijak, Pimprapa Chainapong, Thaweedet Kongthong, Alisa Michu, Panisa Palasai, Wasan Rothjanawan, Kronsirinut Yodrach, Rachchanon Yooyen, Thanapon