This study explores the mixotrophic cultivation of using dairy byproducts, specifically scotta whey (SW), buttermilk wastewater (BMW), and dairy wastewater (DWW), to promote biomass production and enhance the composition of bioactive compounds. By assessing various concentrations (1%, 2%, and 4% v v) of these byproducts in a modified growth medium, this study aims to evaluate their effect on growth, phycocyanin (C-PC) content, and fatty acid methyl ester (FAME) profiles. The results show that the optimal biomass production was achieved with 2% scotta and dairy wastewater, reaching maximum concentrations of 3.30 g L and 3.19 g L, respectively. Mixotrophic cultivation led to increased C-PC yields, especially in buttermilk and dairy wastewater treatments, highlighting the potential for producing valuable pigments. Additionally, the FAME profiles indicated minimal changes compared to the control, with oleic and γ-linolenic acids being dominant in mixotrophic conditions. These findings support the viability of utilizing dairy byproducts for sustainable cultivation, contributing to a circular bioeconomy while producing bioactive compounds of nutritional and commercial interest.
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http://dx.doi.org/10.3390/life15020184 | DOI Listing |
Sci Rep
March 2025
Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
This research focuses on addressing the environmental challenges posed by dairy wastewater problems using advanced oxidation processes (AOP). This study uses a composite of MIL-88 A(Fe)/C with an electro-Fenton process to mitigate the organic pollutants in dairy wastewater. The MIL-88 A(Fe)/C composite is synthesized by combining MIL88-A with carbon in a hydrothermal process, and its morphological characterization was investigated by spectroscopy and microscopy methods.
View Article and Find Full Text PDFChemosphere
March 2025
Post-graduate Program in Agricultural and Environmental Engineering / Institute of Technology / Engineering Department, Federal Rural University of Rio de Janeiro, Campus Seropédica, Seropédica, Rio de Janeiro, RJ, 23890-000, Brazil.
Long-term data are essential for decision-making in the operation of constructed wetlands; however, such data are scarce. In the present study, a subsurface flow CW system was monitored over a 10-year period for the treatment of wastewater from the dairy industry. Prior to the CW, an aerated facultative lagoon was operated, and its data were also included in the study.
View Article and Find Full Text PDFPrev Vet Med
March 2025
Department of Civil Engineering, Indian Institute of Technology, Roorkee 247667, India. Electronic address:
The dairy industry in developing countries is often associated with inappropriate use of antibiotics and the subsequent contamination of the environment with co-selectors of antibiotic resistance. However, the specific factors in dairy farm environments that influence antibiotic resistance levels and the subsequent exposure risks to farm workers are unknown. We examined the link between the infrastructure and operations of the dairy farm and the antibiotic resistance potential in India, which is the highest producer and consumer of dairy products globally.
View Article and Find Full Text PDFBioresour Technol
March 2025
Agro-environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Ecosystem, National Observation and Research Station, Dali, Yunnan 671004, China.
This study investigated the role of indigenous and cultivated microalgae in nutrient removal and biomass production in dairy wastewater, especially in microbial function change. Five indigenous and three cultured microalgal strains were grown in sterile and non-sterile dairy wastewater, and nutrient removal and biomass profiles were analysed. Results showed higher phosphorus removal (90.
View Article and Find Full Text PDFVet World
January 2025
Department of Animal Health, Unggas Karya Mandiri, Malang Regency 65151. East Java, Indonesia.
Background And Aim: Extended-spectrum beta-lactamase (ESBL)-producing in dairy farm wastewater represents a significant threat to environmental and public health due to the dissemination of antibiotic-resistance genes. This study investigates the molecular profiles of ESBL-producing isolates harboring , , and genes from dairy farm wastewater in East Java, Indonesia.
Materials And Methods: Wastewater samples (n = 342) were collected from six major dairy regions in East Java: Pasuruan, Malang, Tulungagung, Blitar, Batu, and Kediri.
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