Evidence of the drying technique’s impact on the biomass quality of Tetraselmis subcordiformis (Chlorophyceae)

Biotechnology for Biofuels and Bioproducts

Research

Simil Amir Siddiqui¹  Maroua Cherif¹  Touria Bounnit¹  Hareb Aljabri²  Imen Saadaoui² 

[1] Algal Technologies Program, Centre for Sustainable Development, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar;Algal Technologies Program, Centre for Sustainable Development, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar;Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar;

关键词: DHA;    Drying technique;    Biomass quality;    PUFA;    Tetraselmis subcordiformis;   

DOI  :  10.1186/s13068-023-02335-x

 received in 2022-03-06, accepted in 2023-04-29,  发布年份 2023

来源: Springer

【 摘 要 】

Rapid drying, cost-effective and safe, will increase the viability of using microalgae for several bio-industrial applications. In this study, five different drying techniques of microalgal biomass were investigated. These include freeze drying, oven drying, air drying, sun drying, and microwave drying. Morphology, metabolite content, FAME profiling, chlorophyll content, total organic carbon, and total nitrogen were analyzed. Results showed that the freeze-drying technique preserves the highest amounts of chlorophyll, proteins, and lipids. Oven drying underperformed as it retained the lowest amount of chlorophyll, protein, and lipid content. More importantly, FAME profiling results showed that air drying was the best technique in maintaining the highest amount of polyunsaturated fatty acids and more specifically docosahexaenoic acid (DHA). Furthermore, this process requires the least capital and energy needs. The findings from this study confirmed that the drying technique affects the microalga biomass quality.Graphical Abstract

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

41116_2023_36_Article_IEq132.gif

41116_2023_36_Article_IEq127.gif

41116_2023_36_Article_IEq95.gif

12888_2023_4816_Article_IEq1.gif