• 更多栏目

    迟占有

    • 教授     博士生导师   硕士生导师
    • 性别:男
    • 毕业院校:华东理工大学
    • 学位:博士
    • 所在单位:生物工程学院
    • 学科:生物化工. 化学工程
    • 办公地点:大连理工大学 生物楼356
    • 联系方式:13234053986
    • 电子邮箱:chizhy@dlut.edu.cn

    访问量:

    开通时间:..

    最后更新时间:..

    Seawater desalination concentrate for cultivation of Dunaliella salina with floating photobioreactor to produce beta-carotene

    点击次数:

    论文类型:期刊论文

    第一作者:Zhu, Chenba

    通讯作者:Chi, ZY (reprint author), Dalian Univ Technol, Sch Life Sci & Biotechnol, Dalian 116024, Peoples R China.

    合写作者:Zhai, Xiaoqian,Jia, Ji,Wang, Jinghan,Han, Desen,Li, Yonghai,Tang, Yajie,Chi, Zhanyou

    发表时间:2018-11-01

    发表刊物:ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS

    收录刊物:SCIE

    卷号:35

    页面范围:319-324

    ISSN号:2211-9264

    关键字:Seawater desalination concentrate; Floating photobioreactor; Dunaliella salina; beta-Carotene; Carbonate precipitate pretreatment

    摘要:Using seawater desalination concentrate to produce microalgae biomass enriched with high value products is a promising way to improve the profitability of desalination industry, but this is seriously limited by enormous land requirement for microalgae farming, as well as high cost of microalgae cultivation. In this study, low cost floating photobioreactor was adopted to cultivate Dunaliella salina to produce beta-carotene, using seawater desalination concentrate as culture medium. With carbonate precipitate pretreatment, 97.6% Ca2+ and 60.3% Mg2+ were removed from seawater desalination concentrate. Then, this carbonate enriched medium was bubbled with CO2, to generate bicarbonate, and this increased total inorganic carbon to 0.254 mol(-1). Cultivation with this medium resulted in biomass production without difference from optimized concentrated artificial seawater medium. Pilot scale cultivation of D. salina with floating PBR on ocean showed that 300 g algal biomass containing 14.3 g beta-carotene can be produced from 1 m(3) desalination concentrate. This amount of beta-carotene enriched biomass has a value more than $ 40, and would significantly improve the profitability of desalination industry.