Barreto Alvaro, Luna-Pabello Victor Manuel, Sacristán de Alva Manuel, Palomino Albarrán Iveth Gabriela, Arenas Martín, Gaxiola Gabriela
Laboratorio de Microbiología Experimental, Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Av. Universidad No. 3000, Col. Universidad, Nacional Autónoma de México C.U., Delegación Coyoacán, Ciudad de México C.P. 04510, Mexico.
Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México Sisal, Sisal C.P. 97356, Yucatán, Mexico.
Microorganisms. 2025 Jun 26;13(7):1484. doi: 10.3390/microorganisms13071484.
The rapid expansion of shrimp aquaculture has led to the generation of nutrient-rich effluents, which contribute to environmental degradation if inadequately managed. This study evaluated the potential of for the reuse of shrimp aquaculture wastewater (SAW) in biofloc production systems under varying dilution levels (0%, 25%, and 50%) and the simultaneous production of high-value biomass. Growth kinetics were modeled using a four-parameter logistic model, and nutrient removal, biochemical composition, and fatty acid profile were assessed. exhibited substantial growth in undiluted SAW, achieving over 80% removal of total nitrogen and reducing the organic load, as measured by a chemical oxygen demand reduction of more than 79%. In SAW treatments, the protein content ranged from 24.7% to 26.3%, while the lipid content reached up to 67.1% in a 25% SAW dilution. Chlorophyll and total carotenoids were measured at 5.3-7 µg/mL and 4.1-5.7 µg/mL, respectively, in SAW treatments. The polyunsaturated fatty acid content in undiluted SAW was 34.5%, with α-linolenic acid (C18:3n3) and linoleic acid (C18:2n6) comprising 12% and 7.5%, respectively. This study demonstrates the ability of to valorize shrimp aquaculture wastewater in biofloc systems into lipid-rich, bioactive biomass, supporting its use in integrated aquaculture biotechnology systems for sustainable wastewater management and bioproduct generation.
对虾养殖业的迅速扩张导致了富含营养的废水的产生，如果管理不当，这些废水会导致环境退化。本研究评估了在不同稀释水平（0%、25%和50%）下，对虾养殖废水（SAW）在生物絮团生产系统中再利用以及同时生产高价值生物量的潜力。使用四参数逻辑模型对生长动力学进行建模，并评估了营养物去除、生化组成和脂肪酸谱。在未稀释的SAW中表现出显著生长，总氮去除率超过80%，并降低了有机负荷，化学需氧量降低超过79%即为衡量指标。在SAW处理中，蛋白质含量在24.7%至26.3%之间，而在25% SAW稀释度下，脂质含量高达67.1%。在SAW处理中，叶绿素和总类胡萝卜素的测量值分别为5.3 - 7μg/mL和4.1 - 5.7μg/mL。未稀释的SAW中多不饱和脂肪酸含量为34.5%，其中α-亚麻酸（C18:3n3）和亚油酸（C18:2n6）分别占12%和7.5%。本研究证明了在生物絮团系统中能够将对虾养殖废水转化为富含脂质的生物活性生物量，支持其在综合水产养殖生物技术系统中用于可持续废水管理和生物产品生产。
