Optimizing light distribution and controlling biomass concentration by continuously pre-harvesting Spirulina platensis for improving the microalgae production

被引：27

作者：

Liu, Huan ^{[1
]}

Chen, Hongjun ^{[1
]}

Wang, Shan ^{[1
]}

Liu, Qing ^{[1
]}

Li, Sen ^{[1
]}

Song, Xueer ^{[1
]}

Huang, Jiaojiao ^{[1
]}

Wang, Xin ^{[1
]}

Jia, Lishan ^{[1
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem & Biochem Engn, Xiamen 361005, Fujian, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2018年 / 252卷

关键词：

Continuously pre-harvesting; Spirulina platensis; Microalgae production; Optimal light distribution; Stabilized biomass concentration; CARBON-DIOXIDE; ARTHROSPIRA-PLATENSIS; PHOTOBIOREACTOR; CULTURE; CULTIVATION; MEMBRANE; CO2; PERFORMANCE; IMPROVEMENT; INTENSITY;

D O I：

10.1016/j.biortech.2017.12.046

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

To improve the microalgae production in batch cultivation, a cultivation mode that continuously pre-harvesting Spirulina platensis from photobioreactor (PBR) with culture medium recycling was proposed. For realizing the continuously pre-harvesting cultivation mode, a Spirulina platensis culture column PBR with overflowing device was designed, which could adjust pre-harvesting rate through the overflowing device. By adjusting the preharvesting rate, the biomass concentration could be kept when biomass accumulation and pre-harvesting biomass were equal. Hence, the meridional light attenuation could be reduced by controlling biomass concentration in PBR. The maximum microalgae production were 44.6%, 10.98% higher in total production than that cultivated in batch cultivation without pre-harvesting and periodically pre-harvesting cultivation mode respectively, which was realized in pre-harvesting rate 0.228 mL min(-1) and biomass concentration 1.8 g L-1. Besides, a model was built by mass balance and polynomial fitting for evaluating the continuously pre-harvesting cultivation mode.

引用

页码：14 / 19

页数：6

共 2 条

[1] Improvement on light penetrability and microalgae biomass production by periodically pre-harvesting Chlorella vulgaris cells with culture medium recycling
Huang, Yun
Sun, Yahui
Liao, Qiang
Fu, Qian
Xia, Ao
Zhu, Xun
BIORESOURCE TECHNOLOGY, 2016, 216 : 669 - 676
[2] Enhanced biomass and phycocyanin production of Arthrospira (Spirulina) platensis by a cultivation management strategy: Light intensity and cell concentration
Chaiklahan, Ratana
Chirasuwan, Nattayaporn
Srinorasing, Thanyarat
Attasat, Shewin
Nopharatana, Annop
Bunnag, Boosya
BIORESOURCE TECHNOLOGY, 2022, 343

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