<br>室外条件下棕色微藻生物质和岩藻黄质的生产和监测,Biotechnology and Bioengineering

当前位置： X-MOL 学术 › Biotechnol. Bioeng. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

室外条件下棕色微藻生物质和岩藻黄质的生产和监测
Biotechnology and Bioengineering ( IF 3.5 ) Pub Date : 2020-12-15 , DOI: 10.1002/bit.27657
Fengzheng Gao ₁ , Marta Sá ₁ , Iago Teles Cabanelas Itd ₁ , René H Wijffels _{1,

2} , Maria J Barbosa ₁

Affiliation

研究了光对黄体金藻和三角褐指藻这两种微藻生物量和岩藻黄质 (Fx) 生产力的影响。高和低生物量浓度（1.1 和 0.4 g L ^-1 ）在室外中试平板光生物反应器中以半连续培养模式进行测试。荧光光谱与化学计量学模型相结合，用于开发适用于两种微藻物种的 Fx 含量和生物量浓度的预测模型。预测模型显示细胞浓度 (.93) 和 Fx 含量 (.77) 的R ²较高。对于两种微藻而言，高生物量浓度下的生物量生产率低于低生物量浓度下的生物量生产率（黄藻和三角藻分别为 1.1 g L ^-1 ：75.66 和 98.14 mg L ^-1 d ^-1 ；0.4 g L ^-1 ：129.9 和 158.47 mg L ^-1 d ^-1 、 T. utea和P. tricornutum ）。 Fx 生产率也观察到相同的趋势（1.1 g L ^-1 ：1.14 和 1.41 mg L ^-1 d ^-1 、 T. utea和P. tricornutum ；0.4 g L ^-1 ：2.09 和 1.73 mg L ^-1 d ^-1 、 T. utea和P. tricornutum ）。这些结果表明，可以通过控制室外条件下的生物量浓度来设定生物量和 Fx 生产率，并且可以使用荧光光谱法进行预测。该监控工具为在线过程控制和优化开辟了新的可能性。

"点击查看英文标题和摘要"

Production and monitoring of biomass and fucoxanthin with brown microalgae under outdoor conditions

The effect of light on biomass and fucoxanthin (Fx) productivities was studied in two microalgae, Tisochrysis lutea and Phaeodactylum tricornutum. High and low biomass concentrations (1.1 and 0.4 g L⁻¹) were tested in outdoor pilot‐scale flat‐panel photobioreactors at semi‐continuous cultivation mode. Fluorescence spectroscopy coupled with chemometric modeling was used to develop prediction models for Fx content and for biomass concentration to be applied for both microalgae species. Prediction models showed high R² for cell concentration (.93) and Fx content (.77). Biomass productivity was lower for high biomass concentration than low biomass concentration, for both microalgae (1.1 g L⁻¹: 75.66 and 98.14 mg L⁻¹ d⁻¹, for T. lutea and P. tricornutum, respectively; 0.4 g L⁻¹: 129.9 and 158.47 mg L⁻¹ d⁻¹, T. lutea and P. tricornutum). The same trend was observed in Fx productivity (1.1 g L⁻¹: 1.14 and 1.41 mg L⁻¹ d⁻¹, T. lutea and P. tricornutum; 0.4 g L⁻¹: 2.09 and 1.73 mg L⁻¹ d⁻¹, T. lutea and P. tricornutum). These results show that biomass and Fx productivities can be set by controlling biomass concentration under outdoor conditions and can be predicted using fluorescence spectroscopy. This monitoring tool opens new possibilities for online process control and optimization.

更新日期：2021-02-18

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南