Cationic surfactant-based method for simultaneous harvesting and cell disruption of a microalgal biomass.
Cationic surfactant-based method for simultaneous harvesting and cell disruption of a microalgal biomass.
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DOI：
10.1016/j.biortech.2013.09.095
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发表时间：
2013-12
影响因子：
11.4
通讯作者：
Wencan Huang;Jong-Duk Kim
中科院分区：
文献类型：
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作者：
Wencan Huang;Jong-Duk Kim
微藻是生物柴油生产中最有前途的可持续能源之一。然而，下游工艺的高成本是微藻生物质生物柴油商业规模生产的主要瓶颈。研究了一种基于阳离子表面活性剂的收获和细胞破坏（CSHD）方法，以确定其在微藻生物量收获和细胞破坏同时进行的有效性。利用CSHD，在不到5 min的时间内收获效率达到91%以上，在90 min内收获效率达到97%。此外，CSHD表现出强大的细胞破坏能力；与未使用CSHD相比，脂质回收率提高了133%。CSHD允许从含水量为80%的湿微藻生物量中提取高达100%的总脂质。所有这些结果都是在不使用能源密集型设备的情况下实现的。总之，我们的研究结果表明，CSHD是微藻脂质生产下游过程的节能技术。
Microalgae are one of the most promising sustainable energy sources for biodiesel production. However, the high costs of the downstream process are a major bottleneck for commercial-scale production of biodiesel from a microalgal biomass. A novel approach called the cationic surfactant-based harvesting and cell disruption (CSHD) method was studied to determine its effectiveness in simultaneous microalgal biomass harvesting and cell disruption. Using CSHD, the harvesting efficiency reached more than 91% in less than 5 min and 97% in 90 min. Moreover, CSHD exhibited a powerful ability to disrupt the cells; the lipid recovery was increased 133% compared to not using CSHD. CSHD allowed the extraction of up to 100% of the total lipids from a wet microalgal biomass with 80% water content. All of these results were achieved without using energy-intensive equipment. Altogether, our results suggest that CSHD is an energy-efficient technique for the downstream process of microalgal lipid production.