Integrated biorefinery strategy for tofu wastewater biotransformation and biomass valorization with the filamentous microalga Tribonema minus
| Autor: | Baoyan Gao, Min Su, Chenming Dai, Feifei Wang, Chengwu Zhang, Luodong Huang |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Environmental Engineering Biomass Bioengineering 010501 environmental sciences Raw material Wastewater 01 natural sciences chemistry.chemical_compound Nutrient Biotransformation Dry weight 010608 biotechnology Microalgae Palmitoleic acid Food science Waste Management and Disposal 0105 earth and related environmental sciences Renewable Energy Sustainability and the Environment Soy Foods General Medicine Biorefinery chemistry |
| Zdroj: | Bioresource technology. 292 |
| ISSN: | 1873-2976 |
| Popis: | This study focused on the feasibility of using different concentrations of tofu wastewater (TW) as alternative media for Tribonema minus cultures to produce valuable biorefinery feedstock. T. minus grew mixotrophically in 100% TW with larger carbohydrate (30.99% of dry weight (DW)), protein (15.56% of DW) and chrysolaminarin (6.93% of DW) accumulations than that of in mBG-11 medium. The highest biomass concentration, 7.77 g/L, was achieved in 100% TW, and nutrient removal efficiencies of T. minus at this concentration ranged from 60.49% to 93.60%. Although smaller neutral lipid and palmitoleic acid amounts were detected in 100% TW, their productivities reached 133.77 and 67.19 mg/L/d, respectively, due to the largest biomass yield contribution, which were comparable to those in mBG-11 medium. These findings demonstrated that TW is a promising alternative medium, and an integrated TW biotransformation and biomass valorization process is proposed to achieve better economic performance and environmental sustainability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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