文献类型：期刊文献

中文题名：Comparative analysis of two Porphyridium species for phycobiliprotein and polysaccharide production under different photoperiods

作者：Liang Ji[1];Luxuan Xu[1];Zhangzhen Chen[1];Yulong He[1];Artem Yurevich Manyakhin[4];Pengfei Cheng[5];Liyun Sun[1,2];Jianhua Fan[1,2,3]

机构：[1]State Key Laboratory of Bioreactor Engineering,East China University of Science and Technology,130 Meilong Road,Shanghai 200237,People’s Republic of China;[2]Department of Applied Biology,East China University of Science and Technology,130 Meilong Road,Shanghai 200237,People’s Republic of China;[3]School of Chemistry and Chemical Engineering State Key Laboratory Incubation Base for Green Processing of Chemical Engineering,Shihezi University,Shihezi 832003,People’s Republic of China;[4]Far Eastern Branch,Federal Scientific Center of the East Asia Terrestrial Biodiversity,Russian Academy of Sciences,Vladivostok,Russia 6900225;[5]College of Food Science and Engineering,Ningbo University,Ningbo 315211,Zhejiang,People’s Republic of China

年份：2025

卷号：12

期号：1

起止页码：2554

中文期刊名：Bioresources and Bioprocessing

外文期刊名：生物资源与生物加工(英文)

基金：sponsored by National Key Research and Development Project of China 2025YFA0921100;Natural Science Foundation of Shanghai 24ZR1490800;Ningbo“Innovation Yongjiang 2035”Key R&D Programme-International Scitech Cooperation Projects 2024H002;Funding Project of the State Key Laboratory of Bioreactor Engineering and Shanghai Collaborative Innovation Center for Biomanufacturing Technology.

语种：英文

中文关键词：Porphyridium purpureum;Porphyridium aerugineum;Phycoerythrin;Phycocyanin;Polysaccharide

摘要：Phycobiliproteins and microalgal exopolysaccharides serve as natural pigments and functional additives in food applications.Current production primarily relies on multicellular algae,where yields are constrained by challenges in achieving high-density cultivation.This study investigated photoperiod effects on growth and production of phycobiliproteins and polysaccharides in two unicellular red algae(Porphyridium purpureum and Porphyridium aerugineum).Results demonstrated that short photoperiods enhanced the accumulation of core phycobiliproteins,specifically by increasing phycoerythrin in P.purpureum to a maximum of 30.5±0.8 mg/g DW and phycocyanin in P.aerugineum to 41.9±0.2 mg/g DW.Conversely,long photoperiods promoted biomass accumulation,yielding peak phycoerythrin production(140.6±0.9 mg/L)in P.purpureum and phycocyanin(137.7±1.2 mg/L)in P.aerugineum at day 12.Both species exhibited superior exopolysaccharide production under long photoperiods,though P.purpureum showed significantly higher productivity(898.7±41.0 mg/L at day 20).These findings offer strategic solutions for sustainable production of food-grade pigments and polysaccharides through optimized unicellular algal cultivation.