文献类型：期刊文献

英文题名：Two-stage carbon sequestration by Haematococcus pluvialis: Integrated research from small-scale to pilot-scale cultivation and data quality monitoring

作者：Guo, Shuai[1,4]; Li, Feng[1,3]; Wang, Jun[1,2]; Zhou, Hantao[4]; Yuan, Ziyi[1,4]; Yang, Renjing[5]; Ke, Hongwei[1,4]; Chen, Haifeng[5]; Wang, Chunhui[1,4]; Cai, Minggang[1,2,3,4]

机构：[1] Fujian Provincial Key Laboratory of Marine Chemistry and Applied Technology, Xiamen University, Xiamen, 361102, China; [2] Department of Biological Technology, Xiamen Ocean Vocational College, Xiamen, 361102, China; [3] College of Fisheries, Guangdong Ocean University, Guangdong, 524088, China; [4] College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China; [5] Fujian Provincial Key Laboratory of Innovative Drug Target, Xiamen University, Xiamen, 361002, China

年份：2025

卷号：416

外文期刊名：Bioresource Technology

收录：EI(收录号：20244717385522)、Scopus(收录号：2-s2.0-85209130178)

语种：英文

外文关键词：Astaxanthin; Biological carbon sequestration; Economic evaluation; Growth kinetics; Scale cultivation

外文摘要：A novel two-stage carbon sequestration strategy (3 % and 10 % CO2) was developed and its feasibility was comprehensively demonstrated by multiple methods (pilot-scale cultivation, kinetics, economics and carbon fixation analysis). It was also a safe, efficient and low-cost harvesting strategy. At the end of the culture, astaxanthin production and content increased 2.3 and 2.2 times, respectively. Sedimentation rate (SR) was introduced for the first time to evaluate microalgae culture methods. The SR reached 82.2 % after 2 h of standing. Pilot-scale cultivation was achieved outdoors, with the optimal photobioreactor being a 40 L tubular photobioreactor (T-PBRs), which individually achieved 3.1 g/L and 2.3 % biomass and astaxanthin content. The maximum rate of carbon sequestration (227.9 mg/L/d) was observed in 40 L T-PBRs. The cost of producing 1 kg of astaxanthin-enriched Haematococcus pluvialis (H. pluvialis) was only 17.5 USD. This study brings new perspectives to carbon sequestration and the development of astaxanthin markets. ? 2024