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再利用生物反应器废水作为一种循环生物资源战略,用于培养海洋微藻和生产Omega-3多不和脂肪酸

Sara Swa Thi¹, Angel Anisa Cokro¹, Ezequiel Santillan¹

¹Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551 Singapore.

Bioresource technology

|October 4, 2025

概括

经过处理的生物反应器废水可用于培养生产omega-3多不和脂肪酸 (PUFA) 的微藻,用于可持续的水产料. 较低的温度提高了PUFA的生产,支持循环生物经济和水产养殖的资源效率.

科学领域:

海洋生物技术海洋生物技术
水产养殖营养水产养殖营养
循环经济是一个循环经济.

背景情况:

水产养殖的快速增长需要可持续的鱼粉替代品.
再利用废水为资源效率和循环生物经济战略提供了机会.

研究的目的:

调查使用经过处理的生物反应器废水作为生产omega-3PUFA微藻的生长媒介的可行性.
评估废水度和温度对微藻生长和PUFA含量的影响.

主要方法:

培养四种海洋微藻菌株 (Dunaliella tertiolecta,Nannochloropsis oculata,Tisochrysis lutea,Nannochloropsis oceanica) 在具有不同百分比自化单细胞蛋白 (SCP) 生物反应器废水 (BE) 的介质中.
对叶绿素a作为生物质代理物的分析和对omega-3PUFAs (ALA,DHA,EPA) 的量化.
对微藻生长和PUFA积累的盐度和温度影响的评估.

主要成果:

在含有高达85%BE的介质中观察到微藻的生长,具体容忍度因菌株而异.
这四种菌株都在废水修改介质中生长时合成了omega-3PUFAs (ALA,DHA和/或EPA).
较低的培养温度 (15-18°C) 显著增加了所有测试品种的omega-3PUFA产量.

结论:

自化SCP生物反应器废水可以支持选择海洋微藻菌株的生长和omega-3PUFA生产.
这种方法为水原料生产提供了一种可持续的方法,促进废水再利用和资源效率.
将藻类生物技术与微生物蛋白系统相结合,促进了可持续的料生产和循环生物经济原则.

关键词:

水产养殖鱼类料水产养殖鱼类料达科萨赫萨埃诺酸 (DHA) 是一种多可萨赫萨埃诺酸.乙酸 (EPA) 是一种酸.微藻类是一种微藻类.欧米茄-3 脂肪酸-3 脂肪酸废物处理流的回收利用多不和脂肪酸 (PUFA) 是一种

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