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Effect of salinity on the biochemical characteristics and antioxidant activity of exopolysaccharide of Porphyridium purpureum FACHB 806

文献类型：期刊论文

作者Li, Qianmei2; Chen, Yi2; Liu, Xuan2; Li, Yi2; Xu, Jin1; Li, Tao3; Xiang, Wenzhou3; Li, Aifen2
刊名FRONTIERS IN MARINE SCIENCE
出版日期2023-01-06
卷号9页码:10
关键词Porphyridium salinity exopolysaccharide biochemical composition antioxidant activity
DOI10.3389/fmars.2022.1097200
通讯作者Xu, Jin(xujin@ms.giec.ac.cn) ; Li, Aifen(tiger@jnu.edu.cn)
英文摘要Porphyridium exopolysaccharide (EPS) is a kind of high-value biopolymer with various biological activities secreted by microalgae belonging to Porphyridium genus. Salinity is one of the important environmental factors affecting the growth of microalgae. In order to study the effect of salinity, the yield, biochemical characteristics and antioxidant activity of EPS in Porphyridium purpureum FACHB 806 cultured at four salinity levels (5 parts per thousand, 20 parts per thousand, 35 parts per thousand and 50 parts per thousand) were investigated in this study. The results demonstrated that P. purpureum FACHB 806 could grow at all salinity levels. The highest cell density and EPS yield per cell were 6.6 x 10(7) cells center dot mL(-1) and 29.1 pg center dot cell(-1), which were obtained in the 20 parts per thousand and 50 parts per thousand salinity, respectively. With the increase of salinity, the percentage of xylose and galactose decreased while the percentage of glucose increased. Among all salinity levels, the 5 parts per thousand salinity group achieved the maximum contents of total carbohydrate and uronic acid of EPS, and the 50 parts per thousand salinity obtained the highest protein content of EPS. Compared to the 20 parts per thousand and 35 parts per thousand salinity groups, EPS of the 5 parts per thousand and 50 parts per thousand salinity showed stronger hydroxyl radical scavenging ability. These results indicated that salinity could influence the yield, biochemical composition and antioxidant activity of EPS, which will provide a new strategy to improve the yield and antioxidant activity of EPS.
WOS关键词EXTRACELLULAR POLYMERIC SUBSTANCES ; CYANOBACTERIAL EXOPOLYSACCHARIDES ; POLYSACCHARIDE ; MARINE ; STRESS ; CULTURE ; GENES
资助项目Key Laboratory of Tropical Marine Bio-resources and Ecology, Chinese Academy of Sciences[LMB20211006] ; Engineering Research Center for Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Jinan University, P. R. China[2021B0402]
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种英语
WOS记录号WOS:000916478600001
出版者FRONTIERS MEDIA SA
资助机构Key Laboratory of Tropical Marine Bio-resources and Ecology, Chinese Academy of Sciences ; Engineering Research Center for Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Jinan University, P. R. China
源URL[http://ir.giec.ac.cn/handle/344007/38447]  
专题中国科学院广州能源研究所
通讯作者Xu, Jin; Li, Aifen
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou, Peoples R China
2.Jinan Univ, Inst Hydrobiol, Guangzhou, Peoples R China
3.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Trop Marine Bioresources & Ecol, Guangdong Key Lab Marine Mat Med, Guangzhou, Peoples R China
推荐引用方式
GB/T 7714		 Li, Qianmei,Chen, Yi,Liu, Xuan,et al. Effect of salinity on the biochemical characteristics and antioxidant activity of exopolysaccharide of Porphyridium purpureum FACHB 806[J]. FRONTIERS IN MARINE SCIENCE,2023,9:10.
APA Li, Qianmei.,Chen, Yi.,Liu, Xuan.,Li, Yi.,Xu, Jin.,...&Li, Aifen.(2023).Effect of salinity on the biochemical characteristics and antioxidant activity of exopolysaccharide of Porphyridium purpureum FACHB 806.FRONTIERS IN MARINE SCIENCE,9,10.
MLA Li, Qianmei,et al."Effect of salinity on the biochemical characteristics and antioxidant activity of exopolysaccharide of Porphyridium purpureum FACHB 806".FRONTIERS IN MARINE SCIENCE 9(2023):10.

入库方式： OAI收割

来源：广州能源研究所

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